Analog Output; Accuracy; Analog Output Drift - Measurement Computing PCI-DAS1602/16 User Manual

PCI-DAS1602/16 User's Guide

Analog output

D/A converter type
Resolution
Number of channels
Channel type
Output range (each channel independently
software selectable)
Data transfer
Throughput
Monotonicity
Slew rate
Settling time
Current drive
Output short-circuit duration
Output coupling
Output impedance
Output stability
Coding
Output voltage on power up and reset

Accuracy

Range
BIP10
BIP5
UNI10
UNI5
Accuracy Components
Integral linearity error
Differential linearity error

Analog output drift

Analog output full-scale gain drift
Analog output zero drift
Overall analog output drift
Absolute error change per °C temperature change is a combination of the gain and offset drift of many
components. The theoretical worst case error of the board may be calculated by summing these component
errors. Worst case error is realized only in the unlikely event that each of the component errors is at their
maximum level, and causing error in the same direction.
Table 6. Analog output specifications
AD669BR
16 bits
2
Single-ended voltage output
±10 V, ±5 V, 0 to 10 V, or 0 to 5 V
From 512 sample FIFO via REPOUTSW or programmed I/O. Data
interleaved for dual analog output mode.
100 kHz, 2 channels simultaneous
16 bits at 25 °C
10 V ranges: 6 V/µs
5 V ranges: 3 V/µs
13 µS max 20 V step to 0.0008%
6 µS typ 10V step to 0.0008%
±5 mA min
Indefinite @ 25 mA
DC
0.1 ohms max
Any passive load
Offset binary
0 V ± 10 mV
Table 7. Analog output accuracy specifications
Accuracy
±8 LSB
±8 LSB
±10 LSB
±10 LSB
±0.5 LSB typ, ±1 LSB max
±0.5 LSB typ, ±1 LSB max
Table 8. Analog output drift specifications
±0.22 LSB/°C max
±0.22 LSB/°C max
±0.44 LSB/°C max
23
Specifications