Agilent/Keysight 3852A

The Agilent/Keysight 3852A is a modular data acquisition and control system built around a 68000-based processor, enabling high-speed automated measurements and independent subroutine execution without external computer dependency. The mainframe provides eight plug-in slots, expandable to additional capacity via the 3853A extender, supporting up to 1848 differential or 4620 single-ended channels. The system achieves 100,000 readings per second at 22-bit resolution with measurement modules covering thermocouples, thermistors, RTDs, strain gauges, DC/AC voltage, current, resistance, frequency, and digital I/O.

Technical Specifications

• Measurement Speed: 100,000 readings/second maximum


• Resolution: 22 bits


• DC Voltage Accuracy: 0.008% best case


• AC Voltage Accuracy: 0.5% best case


• Maximum Channels (differential): 1848


• Maximum Channels (single-ended): 4620


• DCV Range: ±300 V


• ACV Range: ±200 V


• Analog Output (DCV): ±10 V


• Analog Output (DCI): ±20 mA


• Frequency Counter: 200 kHz maximum


• Digital Input: Isolated, 230 kHz maximum speed


• Resistance Measurement: 3 Mohm maximum reading


• Internal Memory: Up to 4 Mbytes (optional)


• System Clock Resolution: 1 msec


• Programmable Pacer Resolution: 0.25 µsec


• Weight: Approximately 50 lbs

Key Features

• Eight-slot mainframe with expansion capability via 3853A extender


• Support for up to three integrated digital voltmeters


• Built-in 68000 processor for autonomous measurement routines


• Plug-in module architecture for transducer and I/O customization


• 1 msec time-stamping clock and 0.25 µsec measurement pacer

Typical Applications Automated test systems, process monitoring, multi-channel data logging, transducer measurement networks, and control systems requiring high-speed, high-channel-count acquisition with minimal external processing overhead.

Compatibility & Integration IEEE-488 (GPIB) standard interface. Compatible with Keysight 9000 Series 300 computers and standard PCs.