Agilent/Keysight 3437A

The Agilent/Keysight 3437A is a microprocessor-controlled system voltmeter designed for automated testing and high-speed data acquisition. This 3½ digit instrument samples voltages at rates up to 5700 samples per second with three selectable ranges (0.1 V, 1 V, and 10 V full scale), each supporting 100% overrange. Chassis-isolated input terminals enable floating measurements up to ±20 V, while wideband input amplification, auto-zero, auto-polarity, and sample-and-hold functionality ensure accurate instantaneous readings across DC to 1.0 MHz.

– Technical Specifications

Measurement Performance
• Resolution: 3½ digit display
• Voltage ranges: 0.1 V, 1 V, 10 V full scale with 100% overrange on all ranges
• Sampling rate: Up to 5700 samples per second (packed data format)
• Floating measurement capability: ±20 V (chassis isolated)
• Frequency range: DC to 1.0 MHz
• Input impedance: 1 MΩ (10 V range); >10⁸ Ω (1 V and 0.1 V ranges); all 50 ms)

– Key Features

• HP-IB (Hewlett-Packard Interface Bus) control—all front panel functions programmable
• Dual data output formats: ASCII (8 byte) or Packed (2 byte)
• Binary program mode for abbreviated code entry
• Sample-and-hold for instantaneous voltage capture
• Wideband input amplifier with auto-zero and auto-polarity

– Typical Applications

• Automated high-speed voltage measurement and logging
• Burst sampling and transient analysis
• Precision DC and waveform monitoring up to 1.0 MHz
• System integration via HP-IB instrumentation control

– Compatibility & Integration

HP-IB interface provides direct integration into automated test systems and data acquisition setups. Programmable triggering and selectable data formats support flexible test sequences and real-time system communication.