19
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. 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 to GND
±15 V max
Input impedance
100 M
Ω, min
Input ranges
Software-selectable
±10 V, ±5 V, ±2 V, ±1 V
Sampling rate
Scan to PC memory
0.6 S/s to 50 kS/s, software-selectable
Burst scan to 32 k sample FIFO
20 S/s to 50 kS/s, software- selectable
Throughput
Software paced
500 S/s all channels
Hardware paced (Note 1)
(100 kS/s) / (# of channels),
50 kS/s max for any channel
BURSTIO
≤ 32,768 total samples
(uses onboard FIFO)
(200 kS/s) / (# of channels),
50 kS/s max for any channel
Gain queue
Software configurable..
Eight unique, consecutive elements – one gain
element per channel.
Resolution
16 bits
No missing codes
15 bits
Crosstalk
Signal DC to 25 kHz
–80 dB
CAL output
User calibration source
0.625 V, 1.25 V, 2.5 V, 5.0 V,
software-selectable
CAL output accuracy (Note 2)
±0.5% typ, ±1.0% max
CAL current
±5 mA max
Trigger source
Software-selectable
External digital: TRIG_IN
Note 1:
Maximum throughput when scanning in hardware paced mode is machine dependent.
Note 2:
Actual values used for calibration are measured and stored in EEPROM.
Table 2. Calibrated absolute accuracy
Range
Accuracy (mV)
±10 V
5.66
±5 V
2.98
±2 V
1.31
±1 V
0.68
