AD620 Voltage Amplifier Module Board Mini Signal Instrumentation

The AD620 is used as the main amplifier, with a magnification of 1.5-10000 times, high precision, low offset, and better linearity. Adjustable zero to improve accuracy. High precision, low offset, AC, DC microvolt, millivolt voltage amplifier, can be used for small signal amplification of AC and DC, microvolt, millivolt voltage amplification.

Features:

Wide input range This product adopts AD620 to amplify and can amplify microvolts and millivolts. Compared with LM358 on the market, it has high amplification precision and good linearity, and the maximum voltage output range is ±10V.
Magnification The potentiometer is used to amplify the input signal, and the magnification is up to 1000 times, which can be adjusted only by a potentiometer.
Adjustable zero point Adjust the zero point by adjusting the potentiometer, improve the accuracy, and there will be no zero drift phenomenon to meet customer needs.
The negative voltage output module uses the 7660A negative voltage chip output negative voltage (-Vin), which can be supplied to customers to drive other dual power loads.
The small size is 32*22mm, and four 3mm positioning holes are evenly distributed around the two sides, and the two rows are 2.54mm standard spacing.

Parameters:

Input voltage: 3-12VDC (bulk can be customized)
Magnification: 1.5-1000 times adjustable, zero adjustable
Signal input voltage: 100uV--300mV
Signal output range: ± (Vin - 2V)
Negative pressure output: greater than -Vin. Due to the internal resistance of the negative voltage chip output, the actual output is greater than -Vin, the greater the load power, the greater the negative pressure drop
Offset voltage: 50μV
Input bias current: 1.0nA (max)
Common mode rejection ratio: 100dB
Offset voltage drift: 0.6μV/°C (max)
Stable, time: 2μV/month maximum
Size: 32*22mm
The output signal has small distortion, high frequency and noise filtering capability, and is more suitable for amplifying small signals.

Instructions:

+S : signal input
-S: Signal input negative terminal (can be connected to GND)
Vout: signal output
V- outputs a voltage of -Vin (powered by the sensor)