Analog Devices 3B31-02 Input Module

Analog Devices 3B31-02 Input Module is a single-channel, galvanically isolated voltage input module designed for ±5 V signals, part of the 3B30/3B31 isolated input family. It functions as a dedicated input conditioner within Analog Devices’ 3B signal-conditioning subsystem, providing isolation between the external signal and the host system and delivering a conditioned input to the backplane. The 3B30/3B31 family is specified as mix‑and‑match and hot‑swappable, allowing flexible configuration of multiple input channels on a common chassis without power‑down in many setups. The module’s ±5 V input range makes it suitable for interfacing low‑voltage sensors, analog test points, and industrial transducers used in automation and process control, data acquisition, and instrumentation applications where electrical isolation safeguards equipment and ensures signal integrity. Typical installations include factory automation panels, laboratory instrumentation racks, and control systems requiring safe, isolated measurement of small voltage signals.