Keithley 3721 ACC multiplexer card

The Keithley 3721 ACC multiplexer card is a high-precision, plug‑in accessory designed to expand measurement flexibility in the Keithley 3700A mainframe system. Built with rigorous engineering standards, this card enables reliable switching among multiple inputs without compromising signal integrity. Ideal for test benches, labs, and industrial settings, it offers stable performance under demanding conditions. Whether you’re scaling up complex wiring or integrating additional channels, the 3721 assures measurement consistency, durability, and ease of integration. It’s a smart investment for enhancing multimeter capability with minimum fuss.

What Makes the Keithley 3721 ACC Multiplexer Card Standout?

What sets the Keithley 3721 ACC Multiplexer Card apart is its seamless compatibility with the Keithley 3700A mainframe, delivering multiplexing capability without the need for external switches. Manufactured by Keithley, its build quality ensures reliable switching, low leakage, and tight tolerances, critical in precision test and measurement scenarios. The card's design also minimises interference and preserves signal fidelity, enabling users to scale their measurement setups safely and accurately.

Functional Highlights of the Product

• ACC (Automated Current/Control) multiplexer functionality
• Plug‑in card form factor for Keithley 3700A mainframes
• High signal integrity with low leakage and tight switching tolerances
• Durable construction for long‑term use in demanding lab/industrial environments
• Simplifies the expansion of measurement channels without bulky external equipment.

For more information please check the datasheets.