Measurement-computing PCI-DAS6023 Manuale Utente Scaricare il pdf (Pagina 32)

PCI-DAS6023 and PCI-DAS6025 User's Guide Specifications

Table 3. Absolute accuracy components - all values are (±)

Range

% of

Reading

Offset

(mV)

Averaged Noise +

Quantization (mV)

Temp Drift

(%/ C)

Absolute Accuracy

at FS (mV)

±10 V

0.0558

2.930

1.262

0.0010

9.77

±5 V

0.0563

1.460

0.605

0.0010

4.88

±500 mV

0.1046

0.150

0.057

0.0010

0.73

±50 mV

0.1340

0.024

0.007

0.0010

0.098

Averaged measurements assume dithering and averaging of 100 single-channel readings.

Table 4. Differential non-linearity specifications

All ranges

±0.5 LSB typ

±1.0 LSB max

System throughput

Table 5. System throughput specifications

Condition

Calibration Coefficients

ADC Rate (max)

1. 1. Single channel, single input range.

Per specified range

200 kS/s

2. 2. Multiple channel, single input range

Per specified range

200 kS/s

3. 3. Single channel, multiple input

ranges.

Default to value for cbAInScan() range

200 kS/s

Note 1: For conditions 1-2 above, specified accuracy is maintained at rated throughput. Condition 3

applies a calibration coefficient which corresponds to the range value selected in cbAInScan().

This coefficient remains unchanged throughout the scan. Increased settling times may occur

during gain-switching operations.

Settling time

Settling time is defined here as the time required for a channel to settle to within a specified accuracy in

response to a full-scale (FS) step. Two channels are scanned at a specified rate. A –FS DC signal is presented to

channel 1; a +FS DC signal is presented to channel 0.

Table 6. Settling time specifications

Condition

Range

Accuracy

±0.012%

(±0.5 LSB)

±0.024%

(±1.0 LSB)

±0.098%

(±4.0 LSB)

Same range to same range

±10 V

5 µS typ

5 µS max

±5 V

5 µS typ

5 µS max

±500 mV

5 µS typ

5 µS max

±50 mV

5 µS typ

5 µS max

Any range to any range

25 µS typ

20 µS typ

15 µS typ

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 43 44

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