ADC1S2PI
3 2IC

Q4FN

TSYS01-FAMILY
Digital Temperature Sensors
SPECIFICATIONSHigh Accuracy Temperature Sensor
 TSYS01:±0.1°C @ Temp.: -5°C … +50°C
 TSYS01-1:±0.1°C @ Temp.: -20°C … +70°C
16/24 bit ADC1 Resolution
Low Power
SPI2/I2C3 Interface
QFN416 Package

The TSYS01 is a single device Temperature Sensing
System (TSYS). The TSYS01 provides factory
calibrated temperature information. It includes atemperature sensing chip and a 24-bit ΔΣ-ADC. The
essence of the digital 24-bit temperature value andthe internal calibration values lead to highly accurate
temperature information accompanied by highmeasurement resolution.
The TSYS01 can be interfaced to any microcontroller
by an I2C or SPI interface. This microcontroller has tocalculate the temperature result based on the ADC
values and the calibration parameters.
The basic operating principle is:Converting temperature into digital
16/24 bit ADC valueProviding calibration coefficients
Providing ADC value and calibration
coefficients by SPI or I2C interface.

1 Analog tot Digital Conversion
2 Serial Peripheral Interface
3 Inter-Integrated Circuit
4 Quad Flat No-leads

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Digital Temperature Sensor

FEATURESHigh Accuracy
TSYS01:±0.1°C @ Temp.: -5°C … +50°C
TSYS01-1:±0.1°C @ Temp.: -20°C … +70°C
Adjustment of high accuracy temp. range on request
Low Current, <12.5 μA (standby < 0.14 μA)
SPI / I2C Interface
Small Package: QFN16
Operating Temperature Range: -40°C … +125°C

APPLICATIONS
Industrial Control
Replacement of Thermistors and NTCsHeating / Cooling Systems
HVAC

ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are limiting values of permitted operation and should never beexceeded under the worst possible conditions either initially or consequently. If exceeded byeven the smallest amount, instantaneous catastrophic failure can occur. And even if the device
continues to operate satisfactorily, its life may be considerably shortened.
Parameter
Supply Voltage
Operating Temperature
Storage temperature

SymbolVDDTopTstor

ESD ratingESD

HumidityHumConditions------Human Body Model (HBM)
pin to pin incl. VDD & GND---Min-0.3-40-55

Typ-------

Max+3.6+125+150Unit
V°C°C-4---+4kV

Non condensing---Min2.23.2---

Typ------OPERATING CONDITIONSParameter
Operating Supply Voltage
High Accuracy Supply Voltage
Supply Current
Standby current

IS

Peak Supply Current
Conversion time
Serial Data Clock SPI
Serial Data Clock I2C
VDD Capacitor

IDD

Conditions
Stabilized
To achieve Acc1
1 sample per second
No conversion, VDD = 3V
T = 25°C
T = 85°C
During conversion

TCONV
FSCLK
FSCL---Place close to the chip

SENSOR SOLUTIONS /// TSYS01-FAMILY

Symbol
VDD
VDD
IDD

09/2017--7.40----------Max
3.6
3.4
12.5

Unit
VV
µA

0.02
0.70
1.4
8.22
----100nF

0.14
1.40
--9.04
20400
---

µA
µA
mA
ms
MHz
kHz
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TSYS01-FAMILY
Digital Temperature Sensor

OPERATIONAL CHARACTERISTICS
If not otherwise noted, 3.3V supply voltage is applied.

Parameter
Temp. Measurement Range

SymbolTRANG

Accuracy 1

TACC1Accuracy 2

TACC2

Power Supply Reject Ratio

PSRR

Temperature ResolutionTRESTliquid

Time Constant
Tair
Self Heating

SH1Conditions---5°C < T < +50°C
TSYS01
VDD = 3.2V – 3.4V
-20°C < T < +70°C
TSYS01-1
VDD = 3.2V – 3.4V
-40°C < T < +125°C
VDD = 3.2V – 3.4V
VDD = 2.7 – 3.6
T = 25°C, C = 100nF--t63 (t1  t2)
t1 = 25°C (air 0m/s)
t2 = 75°C (liquid)
PCB 900mm2 x 1.5mm FR4
t63 (t1  t2)
t1 = 25°C (air 0m/s)
t2 = 75°C (air stream 60m/s)
PCB 900mm2 x 1.5mm FR4
10 samples/s, 60s, still air

Min-40

Typ---

Max+125

Unit°C

-0.1

---

+0.1

°C

-0.5

---

+0.5°C------

0.2°C------

0.01°C---3---s---

4---s------

0.02°C

Typ24
8.22

Max

Unitbit
msMax
VDD
0.3•VDD

ANALOGUE TO DIGITAL CONVERTER
Parameter
Output Word
Conversion Time

Symbol--tc

Conditions
-----

Min
7.40

Symbol
VIH
VIL
tCSL
tCSH
TDSO
TDO

Conditions
VDD = 2.2…3.6V
VDD = 2.2…3.6V---------

Min
0.7•VDD
0.0•VDD
212166Typ

SymbolVOHVOLtQS

Conditions
ISource = 1mA
ISink = 1mA
-----

Min
0.8•VDD
0.0•VDD100

Typ9.04

DIGITAL INPUTS (SCLK, SDI, CSB, PS)
Parameter
Input High Voltage
Input Low Voltage
CS5 low to first SCLK6 rising
CS high to first SCLK rising
SDI7 setup to first SCLK rising
SDI hold to first SCLK rising----------------------Unit
VVnsnsnsns

DIGITAL OUTPUTS (SDA, SDO)
Parameter
Output High Voltage
Output Low Voltage
SDO8 setup to first SCLK rising
SDO hold to first SCLK risingt

QH---------Max
VDD
0.2•VDD-----Unit
VVnsns5 Chip Select
6 Serial Clock
7 Serial Data Input
8 Serial Data Output

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Digital Temperature Sensor

CONNECTION DIAGRAMPIN FUNCTION TABLE
PinName

TypeFunction

1

VSSGGround

2

CSB

DI

SPI: Chip Select (active low)
I2C: Address Selection

3

SCLK/SCL9DI

SPI: Serial Data ClockI2C: Serial Data Clock

4SDI/SDA10DIO

SPI: Serial Data Input
I2C: Data Input / Output

5SDODOSPI: Serial Data Output

6 – 14NC---

Not connected / Do not connect

15VDDP

Supply Voltage

16PSDI

Communication protocol select (0=SPI, 1=I2C)---DAP---

Die Attach Pad, suggested to connect to VSS

9 Serial Clock Line
10 Serial Data LineSENSOR SOLUTIONS /// TSYS01-FAMILY

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Digital Temperature Sensor

INTERFACE DESCRIPTIONPROTOCOL SELECTION
PS pin input level has to be defined in dependence to protocol selection.
PS = 0 activates SPI.
PS = 1 activates I2C.

I2C INTERFACEA I2C communication message starts with a start condition and it is ended by a stop condition.
Each command consists of two bytes: the address byte and command byte.
I2C ADDRESS SELECTION
The I2C address can be selected by CSB pin.


CSB=1 the address is 1110110x.
CSB=0 the address is 1110111x.

Therefore, two TSYS01 can be interfaced on the same I2C bus.
SPI INTERFACE
The serial interface is a 4-wire SPI bus, operating as a slave. CS (chip select), SCLK (serial clock), SDI(serial data in), and SDO (serial data out) are used to interact with the SPI master.
Communication with the chip starts when CS is pulled to low and ends when CS is pulled to high.
SCLK is controlled by the SPI master and idles low (SCLK low on CS transitions, mode 0).
A mode where the clock alternatively idles high is also supported (mode 3).

COMMANDS
The commands are the same for SPI and I2C interface.
There are four commands:ResetRead PROM (calibration parameters)
Start ADC Temperature conversion
Read ADC Temperature result

CommandReset
Start ADC Temperature Conversion
Read ADC Temperature Result
PROM Read Address 0
PROM Read Address 1 (Coefficient k4)
PROM Read Address 2 (Coefficient k3)
PROM Read Address 3 (Coefficient k2)
PROM Read Address 4 (Coefficient k1)
PROM Read Address 5 (Coefficient k0)
PROM Read Address 6 (SN23...8)Hex Value
0x1E
0x48
0x00
0xA0
0xA2
0xA4
0xA6
0xA8
0xAA
0xAC

PROM Read Address 7 (SN7...0 and Checksum)

0xAE

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Digital Temperature Sensor

RESET SEQUENCEThe Reset sequence has to be sent once after power-on. It also can be used to reset the device ROM
from an unknown condition.
SPII2CPROM READ SEQUENCE
The PROM Read command consists of two parts. First command sets up the system into PROM readmode. The second part gets the data from the system.
Below examples are sequences to read address 3 (command 0xA6).
SPI

I2C

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Digital Temperature Sensor

CONVERSION SEQUENCE
A conversion has to be started by sending this command. The sensor stays busy until conversion is done.
When conversion is finished the data can be accessed by using ADC read command
SPIThe last clock will start the conversion which TSYS01 indicates by pulling SDO low. SDO goes high whenconversion is completed.

I2C
When the command is sent the TSYS01 stays busy until the conversion is done. All other commands
except the reset command will not be executed during this time. When the conversion is finished the data
can be accessed by sending a ADC read command, when an acknowledge appears from TSYS01.

READ ADC RESULT
After the conversion command the ADC result is read using ADC read command. Repeated ADC readcommands, or command executed without prior conversion will return all 0 as result.
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Digital Temperature Sensor

I2C

TEMPERATURE CALCULATIONCALIBRATION PARAMETER
Variable
k4k3
k2
k1k0

Description
Coefficient k4 of polynomial
Coefficient k3 of polynomial
Coefficient k2 of polynomial
Coefficient k1 of polynomial
Coefficient k0 of polynomial

SENSOR SOLUTIONS /// TSYS01-FAMILY

Command0xA20xA40xA60xA80xAA

Size / bit
161616161609/2017

Min00000Max
65535
65535
65535
65535
65535

Example
28446
24926
36016
32791
40781

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Digital Temperature Sensor

TEMPERATURE POLYNOMALADC24:
ADC16:

ADC value
ADC24 / 256

T / °C =(-2) * k4 * 10-21 * ADC164 +4* k3 * 10-16 * ADC163 +(-2) * k2 * 10-11 * ADC162 +1* k1 * 10-6 * ADC16 +(-1.5) * k0 * 10-2

EXAMPLEADC24:
ADC16:

9378708
9378708 / 256 = 36636

T / °C =(-2) * 28446 * 10-21 * 366364 +4* 24926 * 10-16 * 366363 +(-2) * 36016 * 10-11 * 366362 +1* 32791 * 10-6 * 36636 +(-1.5) * 40781 * 10-2

T / °C = 10.59

Serial number
Content / Description
Bit 16 … 8
Bit 7 … 0

SN23...8SN7...0
Checksum

CommandSize / bit

Example0xAC

16
160x0005 (H0 = 0x00, L0 = 0x05)
0x96D9 (H0 = 0x96, L0 = 0xD9)

0xAE

Serial number = 28 x SN23...8 + SN7...0EXAMPLE
Serial number: 28 x 5 + 150 = 1430

Checksum
In order to check communication and integrity of PROM content, the PROM includes a checksum. Bysummarization of the complete PROM content in a byte by byte way, the verification can be performed.
The lower byte of the sum result has to be 0x00.

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Digital Temperature Sensor

DIMENSIONSTOP VIEW
All dimensions shown in mm

SIDE VIEW

BOTTOM VIEW

Die Attach Pad, suggested to connect to VSSMARKING
Line123

SENSOR SOLUTIONS /// TSYS01-FAMILY

Description
Manufacturer
Product NamePin 1 Dot, Date Code YYWW

09/2017

ExampleMEAS
TSYS011141

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Digital Temperature Sensor

ORDER INFORMATION
Please order this product using following:
Part Number
G-NICO-018
G-NICO-023

Part Description
TSYS01 Digital Temperature Sensor
TSYS01-1 Digital Temperature Sensor

EMC
Due to the use of these modules for OEM application no CE declaration is done. Especially line coupled
disturbances like surge, burst, HF etc. cannot be removed by the module due to the small board area and low
price feature. There is no protection circuit against reverse polarity or over voltage implemented.

NORTH AMERICAEUROPEASIAMeasurement Specialties, Inc.
a TE Connectivity Company
Tel 800-522-6752
customercare.hmpt@te.com

Measurement Specialties (Europe), Ltd.,A TE Connectivity Company
Tel 800-440-5100
customercare.dtmd@te.com

Measurement Specialties (China), Ltd.,a TE Connectivity Company
Tel 0400-820-6049
customercare.shzn@te.com

TE.com/sensorsolutions
Measurement Specialties, Inc., a TE Connectivity company.
TE Connectivity, TE connectivity (logo) are trademarks. All other logos, products and/or company names referred to herein might be trademarks of their respective owners.
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes
no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard
Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuseof the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application.
© 2017

TE Connectivity Ltd. family of companies

All Rights Reserved.

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