Chapter 4 Specifications; Analog Input - Measurement Computing E-1608 User Manual

Distributed by MicroDAQ.com, Ltd.
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

Parameter
A/D converter type
ADC resolution
Number of channels
Input voltage range
Absolute max input voltage
Input impedance
Input bias current
Input bandwidth
Input capacitance
Max working voltage (signal
+ common mode)
Common mode rejection ratio
Crosstalk
Input coupling
Sample rate
Trigger source
Sample clock source
Internal sample clock stability
Internal sample clock
timebase
Throughput
Channel gain queue
Warm-up time
Note 1: This is the typical throughput when the device and host are both connected by Ethernet to the same
local network. The throughput can vary significantly if a wireless connection is involved or data is sent
over the internet and is not guaranteed.
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Table 1. General analog input specifications
Condition
CHx relative to AGND
All input ranges,
small signal (–3 dB)
±10 V range
±5 V range
±2 V range
±1 V range
(f = 60 Hz, all input
IN
ranges)
Adjacent differential mode
channels, DC to 10 kHz
Software paced
Hardware paced
Up to 8 elements
20
Specification
Successive approximation
16 bits
4 differential, 8 single-ended
Software-selectable
±10 V, ±5 V, ±2 V, ±1 V; software-selectable per channel
±20 V max (power on)

±12 V max (power off)

1 GΩ (power on)

1200 Ω (power off)

±10 nA
700 kHz
60 pf
±10.2 V max relative to AGND
±10.2 V max relative to AGND
±9.5 V max relative to AGND
±9.0 V max relative to AGND
86 dB
–75 dB
DC
0.019 Hz to 250 kHz
Software-selectable
TRIG (see External trigger on page 23)
Internal A/D clock or external A/D clock (AICKI pin)
±50 ppm
80 MHz timer with 32-bit period
(available frequencies are 80 MHz / integer period)
1000 to 5000 S/s typ, on local network (Note 1)
250 kS/s max
Software-selectable channel and range for each queue
element
15 minutes min
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Chapter 4