Chapter 5 Specifications; Analog Input; Accuracy - Measurement Computing PCI-2513 User Manual

Specifications
All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.

Analog input

A/D converter type
Resolution
Number of channels
Input ranges (SW programmable)
Maximum sample rate
Nonlinearity (integral)
Nonlinearity (differential)
A/D pacing
Trigger sources and modes
Data transfer
Configuration memory
Maximum usable input voltage
+ common mode voltage (CMV + V
Signal to noise and distortion
Total harmonic distortion
Calibration
CMRR @ 60 Hz
Bias current
Input impedance
Absolute maximum input voltage

Accuracy

Voltage range
–10 V to 10 V
–5 V to 5 V
–2 V to 2 V
–1 V to 1 V
–500 mV to 500 mV
–200 mV to 200 mV
–100 mV to 100 mV
Specifications assume differential input single-channel scan, 1 MHz scan rate, unfiltered,
Note 1:
CMV=0.0 V, 30 minute warm-up, exclusive of noise.
Table 1. Analog input specifications
Successive approximation
16 bits
16 single-ended/8 differential, software-selectable
Bipolar: ±10 V, ±5 V, ±2 V, ±1 V , ±0.5 V, ±0.2 V, ±0.1 V
1 MHz
±2 LSB maximum
±1 LSB maximum
Onboard input scan clock, external source (XAPCR)
Refer to
DMA
Programmable I/O
Range: ±10 V, ±5 V
) 10.5 V maximum
in
Range: ±2 V, ±1 V, ±0.5 V, ±0.2 V, ±0.1 V
6.0 V maximum
72 dB typical for ±10 V range, 1 kHz fundamental
–80 dB typical for ±10 V range, 1 kHz fundamental
Auto-calibration, calibration factors for each range stored on the board in
non-volatile RAM.
–70 dB typical DC to 1 kHz
40 pA typical (0 °C to 35°C)
10 MΩ single-ended, 20 MΩ differential
±30 V
Table 2. Analog input accuracy specifications
Accuracy
±(% of reading + %
range)
23 °C ±10 °C, 1 year
0.031% + 0.008%
0.031% + 0.009%
0.031% + 0.010%
Note 1 0.031% + 0.02%
0.031% + 0.04%
0.036% + 0.075%
0.042% + 0.15%
Table 7
Temperature coefficient
±(ppm of reading + ppm range)/°C
14 + 8
14 + 9
14 +10
14 + 12
14 +18
14 +12
14 +18
36
Chapter 5
Noise (cts
RMS)
1.5
2.0
1.6
2.5 Note 2
4.0
5.0
9.0