Data Translation DT9837, User Manual

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Overview
15
Key Features of the DT9837
Figure 1 shows the layout of the DT9837 module.
Figure 1: DT9837 Module
The key features of the DT9837 module are as follows:
• Simultaneous analog input and waveform analog output operations
• Analog input subsystem:
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Four, simultaneous 24-bit A/D converters
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Throughput rate up to 52.734 kSamples/s for simultaneous, high-resolution
measurements
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Input range of ±10 V with software-selectable gains of 1 and 10 for an effective input
range of ±10 V and ±1 V
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Support for IEPE (Integrated Electronic Piezoelectric) inputs, including use of a 4 mA
current source and AC or DC coupling
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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
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Supports a start trigger for acquiring pre-trigger samples and a reference trigger for
acquiring post-trigger samples. You can specify the number of post-trigger samples to
acquire before stopping the operation.
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For the start trigger, supports a software-programmable trigger source (software,
external digital trigger, or a positive-going analog threshold trigger on analog input
channel 0). The threshold level is fixed at 1.0 V for the analog threshold trigger.