Parameters:

 

Name: AD623 module (with digital potentiometer module)

 

Supply voltage: + 6V (max)

 

Gain multiple: more than 2000 times (measured)

 

Gain calculation: G = 1 + 100K / RG

 

Signal input type: DC signal, AC signal

 

Input Port: Module Input Holds Single Input and Differential Input

 

Bandwidth: less than 100KHz at high gain

 

Output Voltage Saturation Amplitude: AD623 Approaching the Maximum Supply Voltage (+6Vpp)

 

Control Mode: Sliding Manual and Programming Control of MCP41xxx Digital Potentiometer

 

Application recommendations:

 

This module is suitable for the amplification of signals above 100 microvolts. In addition, it should be noted that although the maximum amplification factor given in the official manual is 10,000 times, it can not reach this value in practical use. The amplification effect of different frequencies and large input signals may be different. The actual amplification factor is affected by the product of gain bandwidth and power supply voltage. The maximum output of the amplifier does not exceed the supply voltage.

 

The gain bandwidth product of the amplifier (designated as the product of the gain of the bandwidth and bandwidth of the G amplifier) is a parameter used to simply measure the performance of the amplifier. When the frequency is large enough, the gain bandwidth product is a number. For example, the gain bandwidth product of AD623 is 8, which means that when the frequency is 8, the gain of the device decreases to unit gain. That is to say, A also shows that this amplifier works at a maximum frequency of 800KHz without making the product of distortion gain and frequency of input signal deterministic, so that it can work at a frequency when the same device needs 10 times gain.