himanshu0128
- Mar 21, 2016
- 10
- Joined
- Mar 21, 2016
- Messages
- 10
- hi guys..just need a little help. i made a receiver circuit(shown in the image) for the ultrasonic sensor at 40 KHz. it works fine and my max. output is 3V. However I want to replace the transistor with opamp. Pls suggest some circuit.
- i have already tried using LM741 but it dint give desired results to due its limited bandwith gain..Kindly suggest a circuit using TL081 keeping in mind the 40KHz signal and desired gain of atleast 75.
- The receiver module is connected between the capacitor(+pin) and ground(-pin).