Keysight 44705A Analog Signal Multiplexer
Keysight 44705A — 20-channel analog multiplexer with 450 channels/second switching speed for multi-sensor data acquisition.
Product details
| Model | 44705A |
| Manufacturer | Keysight |
| Category | Data Loggers |
| Availability | Made to order |
Description
Overview
The Keysight 44705A is an analog signal multiplexer designed to switch signals from up to 20 inputs for measurement by Keysight 3852A voltmeter accessories or by external voltmeters. It provides switching capability for up to 20 inputs at scanning speeds up to 450 channels/second, handling signals up to 120 Vdc or 120 Vrms (170 Vpeak).
The 44705A consists of a component module and a 20-channel terminal module. Field wiring from user sources is connected to the terminal module, and signals are sent to the switches on the component module. Each channel can be independently configured to allow multiple functions to be measured using the same accessory.
Key Features
- 20-channel analog multiplexer with 450 channels/second switching speed
- Supports voltage, resistance, thermocouples, and strain gauge measurements
- Maximum input voltage: 170 Vpeak or 120 Vdc
- High input impedance (>10^9 Ω) for minimal loading
- Low crosstalk (-70 dB at 100 kHz) for accurate multi-channel measurements
Applications
- Multi-channel data acquisition and logging
- Automated measurement systems for voltage and resistance
- Thermocouple and strain gauge measurement networks
Specifications
| Number of Channels | 20 |
| Switching Speed | 450 channels/second |
| Maximum Input Voltage | 170 Vpeak or 120 Vdc |
| Maximum Input Current | 50 mA |
| Maximum Input Power | 1 VArms/ch |
| Input Impedance | >10^9 Ω |
| Bandwidth | 1.0% flatness at 1 MHz, -3 dB bandwidth at 10 MHz |
| Crosstalk | -70 dB at 100 kHz |
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Keysight 44705A Analog Signal Multiplexer