Agilent E1420B Universal Counter VXI Module

Product Overview

The Agilent E1420B is a high-performance, C-size VXI universal counter designed for precision frequency and time-interval analysis within automated test environments. Combining the capabilities of a standalone high-resolution counter with the modular flexibility of the VXIbus, the E1420B is a staple for complex signal characterization. It supports a comprehensive suite of measurement functions—including frequency, period, time interval, ratio, and totalize—making it an essential tool for high-stakes aerospace, telecommunication, and industrial research applications.

Technical Specifications

• Manufacturer: HP / Agilent / Keysight

• Model Number: E1420B

• Product Type: VXI Universal Counter Module (C-size, 1-slot)

• Channels: Two independent input channels (Channel A & B)

• Resolution: 2 ns typical for time intervals

• Frequency Range: High-precision measurement up to 200 MHz (standard)

• Input Impedance: Selectable 1 M$\Omega$ or 50 $\Omega$

• Operating Temperature: 0 to 55 °C

• Compliance: VXIbus Rev 1.4 / SCPI Programmable

Core Engineering Features

• Dual-Channel Versatility: Equipped with two independent channels that allow for complex ratio measurements and time-interval analysis between two distinct signal events.

• High-Resolution Timing: Delivers 2 ns typical resolution, providing the necessary precision for characterizing signal jitter, propagation delays, and pulse widths in high-speed digital systems.

• Dynamic Input Conditioning: Features selectable impedance and coupling to match a wide variety of signal sources, ensuring signal integrity across different test setups.

• Modular System Synergy: Fully compatible with the Keysight 75000 Series C platforms and standard VXI mainframes (like the E1401B), allowing for a high-density, integrated measurement footprint.

• Standardized Programming: Utilizes SCPI (Standard Commands for Programmable Instruments), which simplifies software development and enables easy migration from older counter architectures.