Agilent/Keysight DAQM909A

The Keysight DAQM909A is a 4-channel simultaneous sampling digitizer module engineered for high-resolution dynamic data acquisition within Keysight DAQ970A and DAQ973A mainframes. It delivers 24-bit resolution across independent, programmable channels supporting differential and single-ended inputs up to 36 Vpk, with acquisition memory ranging from 16 MSa to 48 MSa per channel. The module provides dual sampling modes: up to 100 kSa/s for frequency domain analysis and up to 800 kSa/s for time domain capture.

Each channel incorporates a selectable IEPE current source delivering 2 mA to 4 mA for transducer excitation.

Technical Specifications

• 4 simultaneous sampling channels with 24-bit resolution


• Sample rates: 100 kSa/s (frequency domain), 800 kSa/s (time domain)


• Selectable input range up to 36 Vpk


• Differential and single-ended input modes


• Acquisition memory: 16 MSa to 48 MSa per channel


• IEPE current source: 2 mA to 4 mA, selectable


• Transient voltage limit: 0 Vpk referenced to earth

Key Features

• Independent channel programmability for input configuration and current source settings


• Multi-module synchronization across up to 12 channels when multiple DAQM909A units are installed in a single mainframe


• Parallel operation with other DAQ970A/DAQ973A plug-in modules


• Direct mainframe integration without external cabling or adapters

Typical Applications

• Harmonic and noise distortion analysis


• Power analysis and characterization


• Acoustic measurement of electromechanical devices


• Multi-channel dynamic transducer signal acquisition

Compatibility & Integration The DAQM909A plugs directly into Keysight DAQ970A and DAQ973A data acquisition systems. Multiple modules operate in parallel within a single mainframe, enabling synchronized data capture across expanded channel counts. Documentation includes user guides (English, French, Spanish), service and security guidance, and application-focused technical overviews.