WBK11A

Simultaneous Sample & Hold Card
Important Notice! WaveBook/516E UsersWBK option cards for WaveBook/516E are installed at the factory per customer order.
Users are not to remove or install cards for these products as the cards are not “plug-andplay” for these devices and erroneous signal values could result. If you desire to remove
or add a card to WaveBook/516E contact the factory or your service representative.
Important Notice! WaveBook/516, /516A, /512A, and WBK10A Users
With exception of the WBK30 option, WBK option cards for WaveBook/516, /516A,/512A, and WBK10A are installed at the factory per customer order. Users are not toremove or install cards for these products [other than WBK30 series cards] as the cards
are not “plug-and-play” for these devices and erroneous signal values could result. If you
desire to remove or add a card to these products, contact the factory or your service
representative.

Description
The WBK11A is a simultaneous sample-and-hold card (SSH) that provide a means of obtaining concurrent(<150 ns) capture from up to 8 input channels. The card virtually eliminates channel-to-channel timeskewing. The card is controlled by the acquisition system’s base WaveBook.
The WBK11A can be installed inside a WaveBook or in a WBK10A series module; however, it must be
installed by a qualified service representative (see the important notice above).
When using a WaveBook with an SSH channel enabled, the per-channel sample rates arereduced. The rate reduction is the same as that which would occur if another channel wereadded. The per-channel rate (with SSH enabled) is:1 MHz / (n+1), where n is the number of active channels.
The WBK11A SSH card can accommodate higher gains than the main unit because its gains are fixed foreach channel prior to the acquisition. You can use WaveView to set each channel to the ranges listed in thespecifications on page 2. All channels equipped with SSH circuitry are sampled simultaneously as asystem.

P10mates
with
WaveBook
J10

One of 8 Channels (Typical)
Offset Adjust
Diff. Amp.
+Sample/PGA
Hold-MUX

P11mates
with
WaveBook
J11Octal
DAC
SCI - Serial
Configuration Interface

Buffer
Amplifier

WBK11A Block Diagram

WBK11A – SSH Card

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WBK11A, pg. 1

Hardware Setup
Configuration
All WBK11A configurations are controlled by software. There are no hardware settings.
Reference Note:
For detailed WaveView information refer to the WaveView Document Module. A PDF versionof the document can be accessed from the data acquisition CD via the <View PDFs> button on
the CD’s opening screen.

Installation
There is no user installation permitted. See notes on page 1.

WBK11A – Specifications
Name/Function: WBK11A; 8-Channel Simultaneous Sample-and-Hold Card
Number of Channels: 8Connectors: Internal to the WaveBook/512 series, or WaveBook/516 series device;a 36 pin-socket connector mates with a 36-pin connector
Accuracy: ±0.025% FS for WaveBook/512A applications.
For WaveBook/516 Series applications, see the table on page 3 of this WBK11A document module.
Offset: ±1 LSB max
Aperture Uncertainty: 75 ps max
Voltage Droop: 0.1 mV/ms max
Maximum Signal Voltage: ±5.00 VDC (×1)
Input Voltage Ranges:
Before a scan sequence begins, the input voltage ranges can be programmed via software.
The ranges can be expanded as follows:
Unipolar:

Unipolar applies to WBK 10A only.

0 to +10 V
0 to +5 V
0 to +2 V
0 to +1 V
0 to +0.5 V
0 to +0.2 V
0 to +0.1 V
Bipolar: Bipolar applies to WaveBook/516, /516A, /516E, /512A, and WBK10A-10 to +10 V-5 to +5 V
-2 to +2 V
-1 to +1 V
-0.5 to +0.5 V-0.2 to +0.2 V-0.1 to +0.1 V-.05 to + .05 V

This range applies to WBK 10A only.

Programmable Gain Amplifier Gain Ranges: ×1, 2, 5, 10, 20, 50, 100
Weight: 0.14 kg (0.3 lb)

pg. 2, WBK11A

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WBK11A – SSH Card

Accuracy and Noise Specifications
WaveBook/516 Series(Alone)Voltage
Range

Accuracy (Note 2)
One Year, 18-28°C

Input NoiseLSB rms
DC-500KHz(typical)

WaveBook/516 Series
with a WBK11A (Note 3)
Accuracy (Note 2)
One Year, 18-28°C

Input NoiseLSB rms
DC-500KHz(typical)(Note 4)0 to +10V
0 to +5V (10A)
0 to +4V (516)
0 to +2V
0 to +1V(10A only)
0 to +.5V
0 to +.2V
0 to +.1V-10 to +10V
-5 to +5V
-2 to +2V
-1 to +1V-.5 to +.5V
(10A only)-.2 to +.2V-.1 to +.1V-.05 to +.05V(10A only)
Notes: 1.
2.
3.
4.

± %
reading
.012%
.012%

± %
range
.008%
.009%

.012%
.012%

.012%
.018%

.012%
.012%
.012%
.018%
.018%

.008%
.008%
.009%
.012%
.018%

22

± %
reading
.012%
.012%

± %
range
.008%
.009%

2233.012%
.012%

.012%
.018%

3322235.018%.018%.018%.012%.012%
.012%
.018%
.018%

.033%
.08%
.16%
.008%
.008%
.009%
.012%
.018%

681522236.018%
.018%
.018%

.033%
.08%
.16%

81526Specifications assume differential input scan, unfiltered.
Accuracy specification is exclusive of noise.
Unipolar ranges unavailable for a WaveBook/516, /516A, or /516E
that has a WBK11A, WBK12A, or WBK13A option installed.
Unipolar mode is available with WBK10A and any option.
Maximum limit is 1.3X typical.

WBK11A – SSH Card

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WBK11A, pg. 3

pg. 4, WBK11A

988396

WBK11A – SSH Card