Gravity: Analog Current to Voltage Converter(for 4~20mA Application)

The Gravity Analog Current to Voltage Converter translates standard industrial 4 to 20mA sensor signals into a 0 to 3V analogue voltage readable by microcontrollers. It is ideal for makers, educators, and engineers wanting to integrate robust industrial monitoring into Arduino or other development platforms.

Linear industrial current conversion

This module linearly converts 0 to 25mA current signals into a 0 to 3V analogue output. This allows 3.3V and 5V microcontrollers to easily sample data from industrial-grade transmitters.

Precision zero-drift analogue circuitry

Equipped with a 0.1% high-precision sense resistor and an ultra-low noise rail-to-rail zero-drift operational amplifier, the board provides stable, accurate readings without needing manual calibration.

Extended fault and overrun range

The wide 0 to 25mA detection range spans beyond the typical 4 to 20mA boundary. This extra headroom allows your system to monitor signals below 4mA for fault diagnosis and above 20mA for overrun detection.

Flexible supply and connectivity

The unit operates across a 3.3V to 5.5V supply voltage, features a 120 ohm termination resistance, and measures a compact 30mm by 22mm with a PH2.0-3P connector.

High-resolution measurement capability

It achieves plus or minus 2% full-scale accuracy on a standard 10-bit ADC, which improves to plus or minus 0.5% full-scale when paired with a 16-bit external ADC.

Downloads & documentation

• Product wiki (DFRobot)