Measurement Computing PCI-DAS1200 - Manual (Page 17)

16
Chapter 4
Specifications
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Analog input
Table 1. Analog input specifications
Parameter Specification
A/D converter type 7800
Resolution 12 bits
Number of channels 8 differential or 16 single-ended, software selectable
Input ranges Bipolar: ±10 V, ±5 V, ±2.5 V, ±1.25 V
Unipolar: 0 to 10 V, 0 to 5 V, 0 to 2.5 V, 0 to 1.25 V
Software selectable
A/D pacing Programmable: internal counter or external source (A/D External Pacer) or
software polled
Burst mode Software selectable option, burst rate = 3 µs
A/D trigger sources External digital: A/D External Trigger
A/D triggering modes External digital: Software enabled, rising edge, hardware trigger
Pre-trigger:
Unlimited pre- and post-trigger samples. Total # of
samples must be > 512.
Data transfer From 1024 sample FIFO via REPINSW, interrupt or software polled
A/D conversion time 3 µs
Throughput 330 kHz min
Relative accuracy ±1.5 LSB
Differential linearity error ±0.75 LSB
Integral linearity error ±0.5 LSB typ, ±1.5 LSB max
Gain error (relative to calibration reference) ± 0.02% of reading max
No missing codes guaranteed
12 bits
Gain drift (A/D specs) ±6 ppm/°C
Zero drift (A/D specs) ±1 ppm/°C
Common mode range ±10 V
CMRR @ 60 Hz 70 dB
Input leakage current 200 nA
Input impedance 10 MOhm, min
Absolute maximum input voltage ±35 V
Noise distribution: Rate = 1-330 KHz, average % ± 2 bins, average % ±1 bin, average # bins

All ranges: 100% / 100% / 3 bins