AC/DC voltage amplifier module transmitter/small signal instrumentation amplifier/AD620/7660A

High precision microvolt/Millivolt voltage amplifier smallsignalinstrumentamplifier  AD620transmitter

Product Introduction

  adoptAD620, as the main amplifier, can amplify microvolt and millivolt voltages. Magnification factor 15-1000 times, adjustable. High precision, low misalignment, and better linearity. Adjustable zero to improve accuracy. Can be used for amplifying AC and DC models.

High precision, low offset, AC/DC microvolt/millivolt voltage amplifier, suitable for small signal amplification of AC/DC, microvolt/millivolt voltage amplification. The use of modules requires a certain level of electronic foundation. If there are no basic customers, please purchase with caution. Our store provides technical support

productbrightPoint:

1: This product adopts AD620 amplifier with wide input range, which can amplify microvolts and millivolts. It has higher accuracy and better linearity than LM358 amplifier on the market, with a large voltage output range of ± 9V.

2: The amplification factor uses a potentiometer to amplify the input signal, with an amplification factor of up to 1000 times, which can be adjusted with just one potentiometer.

3: Adjustable zero point can be adjusted through a zero potentiometer to improve accuracy and prevent zero drift, meeting customer needs.

4: The negative pressure output module uses a 7660A negative pressure chip to output negative pressure (- Vin), which can be provided to customers to drive other dual power loads.

5: The size of the Mini model is 32 * 22mm, with four 3mm positioning holes evenly distributed around it, and a standard spacing of 2.54mm on both sides of the array.

Product Parameters:

1. Input voltage: 3-11VDC. (Batch customizable)

2. Magnification factor: adjustable from 1.5-1000 times, zero point adjustable

3. Signal input voltage: 100uV-300mV

4. Signal output range: ± (Vin-2V)

5. Negative pressure output: greater than - Vin. Due to the issue of internal resistance in the output of negative pressure chips, the actual output is greater than - Vin, and the greater the load power, the greater the negative pressure drop.

6. Unbalanced voltage: 50 μ V.
7. Input bias current: 1.0nA (maximum value).

8. Common mode rejection ratio: 100dB

9. Offset voltage drift: 0.6 μ V/℃ (maximum value).
10. Stable, time: 2 μ V/month maximum

11. Module weight: 4g

12. Size: 32 * 22mm

The output signal has low distortion, high frequency, and noise filtering ability, making it more suitable for amplifying small and large signals.

Usage:

Attention:+S: signal input terminal, - S: signal input negative terminal (can be connected to GND), Vout signal output, V - output a - Vin voltage (can be used to power the sensor) Signal input, signal output, power input, all three signals must be grounded together.

1. Before using the zero adjustment wiring diagram, follow the diagram to adjust the zero, short circuit+S and - S, and adjust the zero adjustment knob to make the output Vout 0V.

2. Single ended input wiring diagram This wiring diagram is suitable for single ended output signals, sensors, silicon photovoltaic cells, etc.

3. Differential input wiring diagram This wiring diagram is applicable to differential output pressure sensors, bridges, and other sensors.