DI-1100 Hardware Manual
Specifications
3
2. Specifications
Analog Inputs
Number of Channels:
4
Channel Configuration:
Differential
Voltage Measurement Range:
±10V Full Scale fixed
Input Impedance:
1M
Isolation:
none
Absolute accuracy:
@ 25°C, excluding common mode error
±12.5 mV
Absolute maximum input without damage:
±75 V peak, continuous
±100 V peak, one minute or less
System noise:
7.8 mV rms
Maximum common mode voltage:
± 10 V
Common mode rejection ratio:
40 dB (dc - 60 Hz)
Channel-to-channel crosstalk rejection:
-80 dB
Digital Inputs
Number of ports:
2 (reserved)
Type:
MOSFET switch
Threshold levels:
TTL-compatible
Absolute maximum applied voltage (V):
±30 V dc
Reserved Inputs (Digital Inputs)
Digital In 0:
W
IN
D
AQ
remote events
Digital In 1:
W
IN
D
AQ
remote start/stop
ADC Characteristics
Resolution:
12-bit
Above zero ADC counts: 2,047
Below zero ADC counts: 2,048
Maximum sample rate per channel:
40 kHz, 1 enabled channel
30 kHz, 2 enabled channels
24 kHz, 3 enabled channels
20 kHz, 4 enabled channels
Min. sample throughput rate:
915.5 Hz (0.0006104 Hz with WinDaq software)
Sample rate timing accuracy:
50 ppm
Indicators and Connections
Interface:
USB 2.0 (mini-B style connector)
Indicators (LED):
3 LEDs, (2) Green, (1) RGB
