The Keysight M9185A is a PXIe isolated digital-to-analog converter module engineered for high-fidelity signal generation in demanding test environments. It delivers independent, galvanically isolated output channels with integrated remote sensing to compensate for cable and load voltage drops, ensuring accurate voltage biasing at the device under test. Available in 8-channel and 16-channel configurations, this module serves functional test systems, automated test equipment, and application-specific benches across aerospace, defense, and automotive electronics.
Technical Specifications
• Model: M9185A (8-channel: M9185A-001; 16-channel: M9185A-002)
• Form Factor: PXIe
• Resolution: 16-bit
• Channel Isolation: > 80 Vdc/ac peak (channel-to-chassis or channel-to-channel)
• DC Voltage Output: ±16 V per channel; 500 µV resolution
• DC Current Output: ±20 mA per channel; 630 nA resolution
• Settling Time: 500 µs (typical)
• Module Size: 2-slot (8-channel); 3-slot (16-channel)
• Output Connector: Stacked VHDCI receptacle
– Key Features
• Independent isolated channels prevent cross-talk and protect the device under test
• Remote sensing detects actual voltage at the DUT and compensates for line losses—critical for precision biasing in automotive electronics (12 V to 14 V systems)
• Software and external trigger synchronization enables precise multi-instrument timing control
• Supports cPCI, PXI-1, and PXI-H slot compatibility
– Typical Applications
• Automotive electronics functional test and validation
• Aerospace and defense system characterization
• Isolated biasing channels in automated test systems
• Applications requiring voltage drop compensation over extended cable runs
– Compatibility & Integration
Integrates into cPCI, PXI-1, and PXI-H chassis with a PXI controller. Requires Keysight IO Libraries Suite 16.0 or later. Supports IVI-COM, IVI-C, and LabVIEW G drivers with application examples in LabVIEW, LabWindows/CVI, Visual Studio (C/C++/C#), and Visual Basic.
