Keysight (Agilent)
Keysight (Agilent) DAQM901A
20 Channel Multiplexer (2/4-wire) (for DAQ970A & DAQ973A)
20 Channels Number of Channels
20-Channel Armature Multiplexer Multiplexer Type
100 mV to 300 V Voltage Measurement Range
Supported via external shunt resistor Current Measurement
100 Ω to 100 MΩ (2-wire and 4-wire) Resistance Measurement Range

| Attribute | Value |
|---|---|
| Number of Channels | 20 Channels |
| Multiplexer Type | 20-Channel Armature Multiplexer |
| Voltage Measurement Range | 100 mV to 300 V |
| Current Measurement | Supported via external shunt resistor |
| Resistance Measurement Range | 100 Ω to 100 MΩ (2-wire and 4-wire) |
| Thermocouple Types Supported | B, E, J, K, N, R, S, T |
| Maximum Switching Speed | Up to 60 channels/second |
| Compatible Mainframe | Keysight DAQ970A / DAQ973A |
| Channel Configuration | 1-wire (single-ended) or 2-wire (differential) selectable |
| Connector Type | Screw terminal |
Keysight (Agilent) DAQM901A Options:
- DAQM900A - DAQM900A - 20-Channel General Purpose Multiplexer (solid state, 2-wire/4-wire selectable, 450 ch/s, 120V, built-in cold junction reference)
- DAQM901A - DAQM901A - 20-Channel General Purpose Multiplexer + 2 current channels (armature, 2-wire/4-wire selectable, 80 ch/s, 300V, built-in cold junction reference)
- DAQM902A - DAQM902A - 16-Channel High-Speed Multiplexer (reed, 2-wire/4-wire selectable, 250 ch/s, 300V, built-in cold junction reference)
- DAQM903A - DAQM903A - 20-Channel Actuator/General Purpose Switch (SPDT/Form C, 300V, 1A)
- DAQM904A - DAQM904A - 4x8 Two-wire Matrix Switch (armature, 300V, 1A)
- DAQM905A - DAQM905A - Dual 4-Channel RF Multiplexer, 50Ω (2 GHz bandwidth, SMB connectors)
- DAQM907A - DAQM907A - Multifunction Module (two 8-bit digital I/O ports, 26-bit event counter, two 16-bit analog outputs)
- DAQM908A - DAQM908A - 40-Channel Single-Ended Multiplexer (1-wire armature, common low, 100 ch/s, 300V, 1A)
- DAQM909A - DAQM909A - 4-Channel Digitizer (simultaneous sampling, 800 kSa/s, 36 Vpk, 24-bit resolution, differential inputs)
| Model | DAQM901A |
|---|
Keysight (Agilent) DAQM901A 20 Channel Multiplexer (2/4-wire) (for DAQ970A & DAQ973A)
The Keysight (Agilent) DAQM901A 20 Channel Multiplexer is the most versatile multiplexer for general-purpose scanning. It combines dense, multi-function switching with 80 channel / second scan rates to address a broad spectrum of data acquisition applications. Two- and four-wire channels can be mixed on the same module. Two additional fused inputs (22 channels total) route up to 1 A of cur to the internal DMM, allowing ac and dc cur measurements without the need for external shunt resistors.
Specifications for the Keysight (Agilent) DAQM901A 20 Channel Multiplexer (2/4-wire) (for DAQ970A & DAQ973A) Include:
| Number of Channels | 20 |
| Scan rate | 80 channels/s |
| Maximum Current | 1A |
| Bandwidth | 10 MHz dB |





