Data Translation DT9837, User Manual

Page: 18 / 150

Chapter 1
18
Key Features of the DT9837B
Figure 3 shows the layout of the DT9837B module.
Figure 3: DT9837B Module
The key hardware features of the DT9837B module are as follows:
• Four, simultaneous 24-bit A/D converters
• Internal clock source with a throughput rate up to 105.469 kSamples/s for simultaneous,
high-resolution analog input measurements
• Input range of ±10 V with software-selectable gains of 1 and 10 for an effective input
range of ±10 V and ±1 V
• Support for IEPE (Integrated Electronic Piezoelectric) inputs, including use of a 4 mA
current source with 18 V compliance voltage for AC or DC coupling
• The ability to return the value of tachometer counter 0 in the analog input data stream,
allowing you to measure the period or frequency of the tachometer input signal
synchronously with analog input measurements
• The ability to read the value of tachometer counter 1 in the analog input data stream,
allowing you to precisely correlate tachometer measurements with analog input
measurements
• The ability to read the value of gate counter 2 in the analog input data stream, allowing
you to precisely correlate gate input measurements with analog input measurements