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Triggering
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| Table 8. Trigger sources and modes |
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Trigger source | Explanation | |
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Single channel analog | Any analog input channel can be software programmed as | |
hardware trigger | the analog trigger channel, including any of the analog expansion channels. | |
| | Input signal range: |
| | Trigger level: Programmable |
| | Latency: 350 ns typical, 1.3 µs max |
| | Accuracy: ±0.5% of reading, ±2 mV offset maximum |
| | Noise: 2 mV RMS typical |
Single channel analog | Any analog input | |
software trigger | the software trigger channel. If the trigger channel involves a calculation, such as temperature, | |
| then the driver automatically compensates for the delay required to obtain the reading, resulting | |
| in a maximum latency of one scan period. | |
| | Input signal range: Anywhere within range of the trigger channel |
| | Trigger level: Programmable |
| | Latency: One scan period (maximum) |
A separate digital input is provided for digital triggering. | ||
channel digital trigger | | Input signal range: |
| | Trigger level: TTL level sensitive |
| | Minimum pulse width: 50 ns high, 50 ns low |
| | Latency: One scan period maximum |
Digital pattern | ||
triggering | not equal, above, or below a value. | |
| | Individual bits can be masked for "don't care" condition. |
| | Latency: One scan period, maximum |
Counter/totalizer | Counter/totalizer inputs can trigger an acquisition. User can select to trigger on a frequency or on | |
triggering | total counts that are equal, not equal, above, or below a value, or within/outside of a window | |
| rising/falling edge. | |
| | Latency: One scan period, maximum |
Frequency/pulse generators
Table 9. Frequency/pulse generator specifications
Channels | 2 | × | |
Output waveform | Square wave | ||
Output rate | 1 | MHz base rate divided by 1 to 65535 (programmable) | |
2.0 | V minimum @ | ||
0.4 | V maximum @ 400 µA |
Power consumption
Power consumption specification is for a
Table 10. Power consumption specifications (Note 5)
Power consumption (per board) 3000 mW
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