iDAQ-841

Specifications

Analog Input

• Channels 8 differential
• Analog-to-digital converter 16 bits

(ADC) resolution

• Input range ±20 V, ±12.5 V, ±10 V, ±5 V, or

±20 mA, software configurable per channel

• Maximum input voltage ±20 V
• Input common-mode voltage range

±20 V range                   ±10 V

±12.5 V range                 ±6.25 V

±10 V range                   ±5 V

±5 V range                     ±2.5 V

• Over-voltage protection ±30 V
• Input coupling DC
• Input impedance

Voltage input                 1 MÙ

Current input                  500 Ù

• Analog low-pass filter

-3 dB bandwidth              22.5 kHz or 250 kHz, software configurable per channel

• Isolation protection 600 VRMS
• Acquisition type Instant or buffered, software configurable

Buffered Acquisition

• Enabled channel Each channel can be enabled/disabled independently

combination                 by software

• Sample rate 1 MHz , for all channels(1), simultaneous sampling, software configurable
• Internal data buffer 512 samples

(FIFO) size

Absolute accuracy

• Voltage input

Operating temperature within ±5°C of last

Auto-calibration temperature                        ±0.01% of full-scale range max. Over full operating temperature range     ±0.05% of full-scale range max.

• Current input

Operating temperature within ±5°C of last

Auto-calibration temperature                        ±0.1% of full-scale range max. Over full operating temperature range       ±0.5% of full-scale range max.

DC Performance(2)

• Idle channel noise 336 μVrms
• ENOB 16 bits

AC Performance(2)

• SNR 21 dB
• THD -103.93 dB
• THD+N -89.06 dB
• SFDR 99 dB
• Dynamic Range 78 dB
• Crosstalk -100.88 dB

Analog Trigger

• Channel 2 (start and stop)
• Source One of the analog input channels, software configurable
• Threshold level Full scale of analog input range, software configurable
• Hysteresis 1/256 of analog input range, software configurable
• Polarity Rising edge or falling edge, software configurable

Power Requirement

• Power consumption 650 mW / 900 mW max.

from chassis

Mechanical

• Module dimensions 100 x 80 x 25 mm (3.94 x 15 x 0.98 in.)
• Weight 176 g

Environment

• Operating temperature -20 °C to 60 °C (-4 °F to 140 °F)
• Storage temperature -40 °C to 70 °C (-40 °F to 158 °F)
• Operating humidity 10% to 90% RH, non-condensing
• Storage humidity 5% to 95% RH, non-condensing
• Random Vibration 5Grms, , random, 5~500Hz, 1hr/axis
• Shock 30G, half sine, 11ms

Certification

• EMC CE, FCC
• Safety CB, UL

Ordering Information

• IDAQ-841-AE 8-ch, 16-bit, 1MS/s/ch, AI iDAQ module
• Maximum 4MS/s in total for all For example, 1MS/s for 4 channels or 500kS/s for 8 channels.
• For detailed information, please refer to specification in the user