Measurement Computing USB-1608FS-Plus - Manual (Page 17)

17
Chapter 4
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
Table 1. General analog input specifications
Parameter Condition Specification
A/D converter type 16-bit successive approximation type
Number of channels 8 single-ended
Input configuration Individual A/D per channel
Sampling method Simultaneous
Absolute maximum input voltage CHx IN relative to GND ±15 V max
Input impedance 100 MΩ min
Input ranges Software-selectable per channel ±10 V, ±5 V, ±2 V, ±1 V
Sampling rate Hardware paced 0.01 S/s to 100 kS/s, software-selectable
Throughput Software paced 500 S/s all channels
Hardware paced (Note 1) (400 kS/s) / (# of channels) max,
100 kS/s max for any channel
BURSTIO ≤ 32,768 total samples
(uses onboard FIFO) (800 kS/s) / (# of channels) max,
100 kS/s max for any channel
Gain queue Software configurable. Up to eight
elements – one gain element per unique,
ordered channel.
Resolution 16 bits
No missing codes 16 bits
Crosstalk Signal DC to 25 kHz –80 dB
Trigger source Software-selectable External digital: TRIG_IN
Note 1: Maximum throughput when scanning in hardware paced mode is machine dependent.
Accuracy
Analog input DC voltage measurement accuracy
Table 2. Calibrated absolute accuracy
Range Accuracy (mV)
±10 V 5.66
±5 V 2.98
±2 V 1.31
±1 V 0.68