Get access to thousands of high quality educational resources

Discuss the Voltage Gains of DA

      

Discuss the Voltage Gains of DA

  

Answers

Wilfred
- The voltage gain of a DA operating in differential mode is called differential-mode voltage gain and is denoted by ADM. The voltage gain of DA operating in common-mode is called common-mode voltage gain and is denoted by ACM.
- Ideally, a DA provides a very high voltage gain for differential-mode signals and zero gain for common-mode signals. However, practically, differential amplifiers do exhibit a very small common- mode gain (usually much less than 1) while providing a high differential voltage gain (usually several
thousands). The higher the differential gain w.r.t. the common-mode gain, the better the performance of the DA in terms of rejection of common-mode signals.
- A differential amplifier should have high differential voltage gain (ADM) and very low common mode voltage gain (ACM). The ratio ADM/ACM is called common-mode rejection ratio (CMRR) i.e.,
amp4a1582019411.png
Wilfykil answered the question on August 15, 2019 at 13:53

Next: Four towns P, Q, R and S are such that town Q is 120km due east of town P. Town R is 160km due north...
Previous: Identify the internal effects of inflation

View More Electronics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions

© 2008-2024 by KenyaPlex.com. All Rights Reserved | Home | About Us | Contact Us | Copyright | Terms Of Use | Privacy Policy | Advertise