Analog Devices 3B41-02 Isolated Wideband Voltage Input Module

Analog Devices 3B41-02 Isolated Wideband Voltage Input Module is a single-channel input module in the 3B Series Signal Conditioning Subsystem that interfaces real-world analog voltages to a data acquisition, monitoring, or control system while providing galvanic isolation between the signal and the host system. The module accepts millivolt-scale inputs and conditions them into an isolated voltage output, as described in the 3B40/3B41 data sheet, which specifies a voltage-output path with no loop power required. Marketed as an isolated wideband voltage-input device, it supports a broad bandwidth suitable for sensors with fast transients and varying source impedance. The isolation between input and output is specified up to ±1500 V peak, enabling safe operation in environments with significant ground loops or common-mode voltages. The 3B40/3B41 family defines the module as a foundational input stage for the system's signal-conditioning subsystem, often deployed in instrumentation, data acquisition, or process-control applications where reliable voltage sensing under isolation is needed.