The Keysight DAQM907A is a multifunction module for the DAQ970A and DAQ973A data acquisition systems, delivering integrated digital I/O, event counting, and configurable analog sourcing with integrated sensing. It combines 16 bits of digital I/O, a 100 kHz gated totalizer with 26-bit resolution, two 16-bit analog outputs (±12 V or ±24 mA), and two associated sense channels for monitoring output conditions. Fully compatible with front-panel control and bus programming, the module eliminates handshake complexity while maintaining continuous alarm evaluation across all input functions.
Technical Specifications
Digital Input/Output
• 16 bits total (two 8-bit ports)
• Non-isolated input or output operation
• 42 V switching voltage
• TTL compatible
• Screw terminal connections
Totalizer
• 100 kHz maximum input frequency
• 26-bit resolution
• Gate-controlled event counter with ~45 minute overflow time at full speed
• Continuous alarm limit evaluation
• Scannable input
Analog Outputs
• 2 channels, 16-bit resolution
• ±12 V (voltage mode) or ±24 mA (current mode), selectable per channel
• Electronically calibrated with autocalibration for time and temperature compensation
• Typical accuracy: ±0.027% + 4.4 mV (voltage), ±0.115% + 4.4 µA (current)
Analog Sense Channels
• 2 channels (6 and 7) paired with analog outputs
• Sense output current when sourcing voltage; sense output voltage when sourcing current
– Key Features
• Direct control of external components: power supplies, microwave switches, attenuators, solenoids, power relays
• Event counting from Hall-effect sensors, photo interrupters, limit switches
• Programmed directly in volts or milliamperes from front panel or bus
• Single-module integration eliminates external interface complexity
• Continuous alarm monitoring independent of scan cycles
– Typical Applications
• Bias voltage sourcing and monitoring
• Analog programmable power supply control
• Control system setpoint generation
• Digital switch and relay automation
• Industrial event monitoring and counting
– Compatibility & Integration
Designed for Keysight DAQ970A and DAQ973A systems. Not compatible with DAQ34980A, 34970A, or 34972A.
