Analog Devices 5B32-01 Single-Channel Signal Conditioning Module

The Analog Devices 5B32-01 is a single-channel signal conditioning module that converts 4-20 mA or 0-20 mA process current inputs into isolated 0 to +5 V analog outputs. Designed for industrial data acquisition and process monitoring, the module reads current by measuring voltage across an external precision 20 Ω resistor and delivers galvanic isolation of 1500 V rms continuous, protecting against ground loops and common-mode interference.

Technical Specifications

• Input: 4-20 mA or 0-20 mA process current


• Output: 0 to +5 V isolated analog voltage, 50 Ω output impedance


• Supply: +5 V ±5%, 30 mA


• Isolation: 1500 V rms continuous; 240 V rms input protection


• Amplifier: Chopper stabilized with ±1 µV/°C drift


• Common-mode rejection: 60 dB @ 50/60 Hz (1 kΩ source imbalance); normal-mode rejection 60 dB @ 50/60 Hz


• Bandwidth: DC to 3 Hz (-3 dB at 4 Hz)


• Output rise time: 200 ms (10%-90% span)


• Selection time: 6 µs @ 0-2000 pF load


• EMI/RFI: <0.1% full-scale error up to 10 V/m and 1 GHz


• Output enable control with logic thresholds: Max "0" at +1 V, min "1" at +2.5 V, max "1" at +36 V


• Power supply sensitivity: ±2 µV/V%

Key Features

• Hard potted encapsulation for industrial environments


• Operating temperature range: -40°C to +85°C; rated performance -25°C to +85°C


• Screw terminal field wiring connections


• Transient protection per ANSI/IEEE C37.90.1-1989


• Active-low output enable control for flexible switching

Typical Applications

• Industrial process control and monitoring


• Data acquisition systems requiring galvanic isolation


• Sensor and transducer signal conditioning


• Automated test and measurement systems

Compatibility & Integration Part of the 5B Series modular signal conditioning platform, the 5B32-01 integrates into plug-in data acquisition and control architectures. Screw terminals accommodate standard field wiring while maintaining 1500 V isolation between input and output circuits.