AD620 Transmitter UV/MV Voltage Amplifier High Precision Small Signal Instrumentation Amplifier

AD620 Transmitter UV/MV Voltage Amplifier High Precision Small Signal Instrumentation Amplifier

Description:
AD620 is used as a main amplifier to amplify microvolts and millivolts. The magnification is 1.5-1000 times, which is adjustable. High accuracy, low offset and better linearity. Adjustable zero calibration to improve accuracy. It can be used for AC and DC signal magnification.

It is a high precision, low offset, AC, DC microvolt, millivolt voltage amplifier. It can be used for AC and DC small signal amplification, microvolt, millivolt voltage amplification.

Features:
- Wide Input Range: AD620 amplifier is used to amplify microvolts and millivolts. It has higher amplification accuracy and better linearity than that of LM358. The maximum voltage output range is ±9V.
- Magnification: A potentiometer is used to amplify input signal. The magnification is up to 1000 times, which can be adjusted through the potentiometer.
- Adjustable Zero Point: Adjust the zero point through zero adjustment potentiometer to improve accuracy and avoid zero drift to meet your needs.
- Negative Voltage Output: The module uses 7660A negative voltage chip to output negative voltage (-Vin), which can be provided to customers to drive other dual power loads.
- Mini Style: Size is 32 * 22mm. Four 3mm positioning holes are evenly distributed around, and the array on both sides is 2.54mm standard spacing.

Specifications:
- Input voltage: 3-11VDC
- Magnification: 1.5-1000 times adjustable, zero point adjustable
- Signal input voltage: 100uV-300mV
- Signal output range: ±(Vin-2V)
- Negative voltage output: Greater than -Vin. Due to the internal resistance of negative voltage chip output, actual output is greater than -Vin. The greater the load power, the greater the negative voltage decreases.
- Offset voltage: 50μV
- Input bias current: 1.0nA (maximum)
- Common mode rejection ratio: 100dB
- Offset voltage drift: 0.6μV /℃ (maximum)
- Stable, time: 2μV /month maximum
- Module weight: 4g
- Size: 32 x 22mm

Package Included:
- 1 x Voltage Amplifier

Note: Electronic knowledge is highly recommended.


Output signal features small distortion and high frequency, and has the ability to filter out noise. It is suitable for amplifying small signals.

Using Methods:
Attention:
+S: signal input port
-S: signal input negative port (can connect with GND)
Vout: signal output
V-: output one -Vin voltage (can supply power for sensors)
Signal input, signal output, and power input must have common ground

1. Zero Adjustment Wiring Diagram:
Before using, please connect for zero adjustment as the picture shows. Short-circuit + S and -S, and adjust zero adjustment button to make Vout to be 0V.


2. Single-ended Input Wiring Diagram:
This wiring diagram is suitable for single-ended output signals, sensors, etc.


3. Differential Input Wiring Diagram:
This wiring diagram is suitable for pressure sensors, bridges and other sensors with differential output.