Preliminary Evaluation of the Intersil HS-9008RH CMOS 8-Bit Flash
Analog‑To‑Digital Converter in the Temperature Range Of 23 C To ‑193 C

Scott S. Gerber

Dynacs Engineering, Inc.

2001 Aerospace Parkway

Brook Park, OH 44142

Richard L. Patterson

NASA Glenn Research Center

21000 Brookpark Road

Cleveland, OH 44135

Ahmad Hammoud

Dynacs Engineering, Inc.

2001 Aerospace Parkway

Brook Park, OH 44142

An Intersil HS-9008RH radiation hardened CMOS 8-bit flash A/D converter
was functionally tested over the temperature range (23 C to --193 C) in
the Low Temperature Electronics facility at the NASA Glenn Research
Center. Figure 1 shows the device layout and the corresponding test
setup. The device was tested at a clock rate of 1 MHz. For
simplification, the device enable pins CE1 and CE2 were set for valid
data on B8 through B1. In addition, only DC values were applied to the
input (Vin). For each DC input value, the 8-bit flash A/D converter
produces an effective output bit pattern (B8 through B1) in binary
format. Table 1 shows the corresponding binary value for each of the
8-bits (255 bits). With Vref = 4.012V, the A/D converter of Figure 1 has
a 15.73 mV per bit measurement resolution.

Table 1. Binary coding.

  ------------ ----- ----- ----- ----- ----- ----- ----- ----- ---------------
  A/D outputs  B8    B7    B6    B5    B4    B3    B2    B1    

  Binary value 128   64    32    16    8     4     2     1     total 255 bits
  ------------ ----- ----- ----- ----- ----- ----- ----- ----- ---------------

Testing of the HS-9008RH 8-bit flash A/D converter was started at room
temperature and taken in steps down to --193 C. At each temperature the
device was allowed to soak for 20 minutes. A ramp rate of 10 C per
minute was used throughout the test. Tables 2 - 13 show the ability of
the HS-9008RH to convert analog input (Vin) to digital output over the
temperature range of 23 C to --193 C. Each table shows the applied input
voltage (Vin), the overflow bit (OF), the outputs (B8 -- B1), the binary
value of the outputs, the calculated decimal output voltage (binary
output 15.73 mV/bit), and the difference or offset between the decimal
output voltage and Vin at a specified temperature. Room temperature
results (Table 2) show the A/D converter tracks the input voltage with
an average offset of 34 mV or about 2 bits. This error is well within
the overall error of the inaccuracies of the test setup. This error was
the largest error measured for the A/D converter over the temperature
range (23 C to ‑193 C) (Tables 2 -- 13). Test results show that the A/D
converter operates properly down to --193 C, well below the
manufacturer's operating temperature of --55 C.

![](media/image1.wmf)

Table 2. Temperature = 23 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 10%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>-0.06</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.06</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.50</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>161</td>
<td>2.53</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.99</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.034</td>
</tr>
</tbody>
</table>

Table 3. Temperature = 0 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 10%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>-0.06</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.06</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.50</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>161</td>
<td>2.53</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>3.01</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.031</td>
</tr>
</tbody>
</table>

Table 4. Temperature = -25 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 10%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>0.00</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.41</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>3.0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.024</td>
</tr>
</tbody>
</table>

Table 5. Temperature = -49 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>0.00</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.41</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>3.0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.024</td>
</tr>
</tbody>
</table>

Table 6. Temperature = -74 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>0.00</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.40</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.99</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.026</td>
</tr>
</tbody>
</table>

Table 7. Temperature = -99 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>0.00</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.40</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.74</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>3.01</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.024</td>
</tr>
</tbody>
</table>

Table 8. Temperature = -117 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>0.00</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="even">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.41</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.42</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>156</td>
<td>2.45</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.00</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>193</td>
<td>3.04</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="even">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.028</td>
</tr>
</tbody>
</table>

Table 9. Temperature = -137 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>0.00</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>0.21</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>14</td>
<td>0.22</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.41</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.42</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>156</td>
<td>2.45</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>3.00</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>193</td>
<td>3.04</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.024</td>
</tr>
</tbody>
</table>

Table 10. Temperature = -159 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>-0.07</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.07</td>
</tr>
<tr class="odd">
<td>0.21</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>14</td>
<td>0.22</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.40</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>2.42</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>156</td>
<td>2.45</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.74</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>2.99</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1/0</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.034</td>
</tr>
</tbody>
</table>

Table 11. Temperature = -180 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>-0.04</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>0.21</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>14</td>
<td>0.22</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.41</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.42</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>156</td>
<td>2.45</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.74</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>2.99</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>4.00</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.03</td>
</tr>
</tbody>
</table>

Table 12. Temperature = -193 C

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>-0.04</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00</td>
</tr>
<tr class="odd">
<td>0.21</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>14</td>
<td>0.22</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>2.00</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>129</td>
<td>2.03</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.41</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.42</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>156</td>
<td>2.45</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.75</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.03</td>
</tr>
<tr class="odd">
<td>2.99</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>3.99</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.024</td>
</tr>
</tbody>
</table>

Table 13. Temperature = 21 C (return to room temperature)

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 22%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Vin</td>
<td>OF</td>
<td>B8</td>
<td>B7</td>
<td>B6</td>
<td>B5</td>
<td>B4</td>
<td>B3</td>
<td>B2</td>
<td>B1</td>
<td><p>binary</p>
<p>Vout</p></td>
<td><p>decimal</p>
<p>Vout (V)</p></td>
<td><p>Vout -Vin</p>
<p>(offset) (V)</p></td>
</tr>
<tr class="even">
<td>-0.02</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>0.21</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>14</td>
<td>0.22</td>
<td>0.01</td>
</tr>
<tr class="even">
<td>1.00</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>65</td>
<td>1.02</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>2.01</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>130</td>
<td>2.05</td>
<td>0.04</td>
</tr>
<tr class="even">
<td>2.40</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>155</td>
<td>2.44</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>2.42</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>156</td>
<td>2.45</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>2.76</td>
<td>0</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>177</td>
<td>2.78</td>
<td>0.02</td>
</tr>
<tr class="odd">
<td>2.99</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>192</td>
<td>3.02</td>
<td>0.03</td>
</tr>
<tr class="even">
<td>3.97</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>255</td>
<td>4.01</td>
<td>0.04</td>
</tr>
<tr class="odd">
<td>3.99</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>overflow</td>
<td>overflow</td>
<td>average offset = 0.028</td>
</tr>
</tbody>
</table>