AD620 Microvolt/Millivolt Voltage Amplifier Module

The AD620 Microvolt/Millivolt Voltage Amplifier Module is a precision signal conditioning board designed to amplify low-level differential signals into readable voltage levels for microcontrollers and data acquisition systems. It uses the AD620 instrumentation amplifier IC for high input impedance, low noise performance, and accurate gain adjustment. This module is ideal for amplifying sensor outputs such as strain gauges, thermocouples, and other microvolt/millivolt sources.

This module is suitable for Arduino, Raspberry Pi (with ADC), PIC, AVR, and other embedded platforms requiring precise amplification of low voltage signals before analog to digital conversion.

KEY FEATURES

• AD620 instrumentation amplifier
• Amplifies microvolt and millivolt signals
• Adjustable gain via external resistor
• High input impedance
• Low noise signal amplification
• Compact PCB breakout design
• Suitable for precision sensor conditioning

SPECIFICATIONS

• Amplifier Chip AD620
• Input Signal Type Differential microvolt / millivolt
• Gain Range Adjustable via resistor
• Operating Voltage 3.3V to 12V typical
• Bandwidth Supports low frequency signals
• Noise Low noise performance
• Output Signal Amplified analog voltage

INTERFACES

• Vin+ Positive differential input signal
• Vin- Negative differential input signal
• Gain Resistor Pads Sets desired amplification gain
• Vref Reference input for output offset
• Vout Amplified output signal
• Power Input Module supply voltage
• GND Ground reference connection