[Changshu Institute of Technology] Differential amplifier circuit tester 695058A

Competition title: Differential amplifier circuit tester

Summary:

Briefly describe the design, simulation and testing methods of a typical differential input differential output amplifier circuit, and discuss its design principles and problems that need to be solved. It focuses on the design and calculation of differential filters, points out the differences between the design and testing of single-ended amplifier circuits, and combines practical work experience with a simple case for testing DC signals and AC signals. .

Keywords: amplifier circuit common mode operational amplifier differential amplifier

Question requirements

( 1 ) Basic requirements: build a triode differential amplifier circuit and debug it to make it work properly. 【Must be completed】

( 2 ) Improve requirements: Design a differential signal source to test the performance of the amplifier produced. [Select Complete]

( 3 ) Design report. 【Complete as required】

       Design

  Use the microcontroller to perform DA output to obtain sine waves, and then further obtain differential signals and common-mode signals.