The Keysight/Agilent/HP 44706A is a 60-channel single-ended relay multiplexer for high-density signal switching in automated test systems. It routes voltage, resistance, thermocouple, and strain gauge signals with low crosstalk and minimal offset error, integrating directly with HP 3852A data acquisition platforms. Each channel operates independently, accommodating field wiring up to 16 AWG and supporting switching rates up to 450 channels/second.
## Technical Specifications
• **Channels:** 60 single-ended
• **Maximum Switch Rate:** 450 channels/second (with HP 3852A voltmeter)
• **Maximum Input Voltage:** 30 V dc or 30 V ac rms (42 V peak)
• **Maximum Input Current:** 50 mA
• **Maximum Input Power:** 1 VArms/channel
• **Input Impedance:** >10⁹ Ω
• **Bandwidth:** 1.0% flatness at 1 MHz; -3 dB at 10 MHz
• **Crosstalk:** -70 dB at 100 kHz
• **Maximum Offset Voltage:** 200 µV
• **Maximum Bias Current:** ±1 nAdc
• **Maximum Wire Size:** 16 AWG
## Key Features
• Independent per-channel configuration
• Low input impedance drift for precision measurement
• Dual-module architecture: component module housing switching elements and 60-channel terminal module for field connections
• Supports multiple signal types in single instrument
## Typical Applications
• Multi-channel voltage and resistance measurement
• Thermocouple and strain gauge data acquisition
• High-speed automated test environments requiring dense signal routing
## Compatibility & Integration
Designed for operation with the HP 3852A Data Acquisition system and compatible external voltmeters. Signals connect at the terminal module and route internally to the component module’s switching matrix.
