Digitizer Module – Keysight DAQM909A

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More features

4 Channel simultaneous sampling with differential inputs
Sample rates of up to 100 kSa/s (in frequency domain) and up to 800 kSa/s (in time domain) with 24-bit resolution
Differential input range selectable up to 36 Vpk
IEPE current source (2mA – 4mA)
Acquisition memory/channel, 16 MSa to 48 MSa

Description
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SPECIFICATIONS Digitizer Module – KEYSIGHT DAQM909A

General technical data
ADC per channel	800 kSa/s at 24-bit
Accuracy	Basic DC voltage accuracy: 0.003% per year.
Range	Hi, Lo Input to Earth: 0.3 Vpk, 1 Vpk, 3 Vpk, 18 Vpk Differential input: 0.6 Vpk, 2 Vpk, 6 Vpk, 36 Vpk Differential input – sinewave Vrms: 0.42 Vrms, 1.4 Vrms. 4.2 Vrms, 25 Vrms
Residual noise (20 Hz – 20 kHz)	7 µVrms, 16 µVrms, 52 µVrms, 175 µVrms
Sample count	1 to 16M
Trigger count	1 to 85k
Pre-trigger count	0 to sample count
External trigger input (one per module)	TTL compatible
External trigger delay	0 – 1000s, 1 µs steps
External trigger latency	1-sample
External Trigger-In terminals	Screw terminal (≥ 20-gage wire)
Measurement input terminals	Screw terminal (≥ 20-gage wire)
Acquisition memory/channel	16M to 48M Samples
Acquisition bandwidth	Time domain (-3 dB): 0.2Fs or 125 kHz max Frequency domain (-0.1 dB): 0.4Fs or 30 kHz max
Analog bandwidth (-3 dB)	125 kHz (measured)

Keysight DAQM909A: 4-Channel Simultaneous Sampling Digitizer Module

The DAQM909A is a four-channel digitizer module capable of providing four simultaneously-sampled channels with sampling rate as high as 800k samples per second with a maximum resolution of 24 bits. The input channels of the DAQM909A can be configured as a differential input or a single-ended input and each of the channels can provide up to 4mA of constant current to power up an external IEPE transducer.

When three DAQM909A modules are inserted within the same instrument, all 12 channels can be synchronized to provide simultaneous sampling.