Browser not supported

✕
Go back

Tier limit reached

✕

JFET - BJT Operational Amplifier Input Stage

0
Favorite
1
copy
Copy
1347
Views
Open Circuit
JFET - BJT Operational Amplifier Input Stage
Social Share
Embed circuit
Embed linked image

Circuit Description

Graph image for JFET - BJT Operational Amplifier Input Stage

Circuit Graph

This circuit can be used as a high-impedance input of an operational amplifier. The p-channel JFET is configured as a source follower and its output is coupled to an emitter follower NPN transistor. The Vbe of NPN BJT, the voltage drop across Rlim and Veb of PNP BJT limits the source to drain voltage (Vsd) of the JFET.

There are currently no comments

Profile image for Sak04

Copy of JFET - BJT Operational Amplifier Input Stage

Sak04

Creator

Profile image for ggoodwin

GGoodwin

1116 Circuits

Date Created

7 years, 1 month ago

Last Modified

6 years, 1 month ago

Tags

  • op amp
  • operational amplifier
  • bifet
  • jfet
  • source follower
  • jfet input stage
  • operational amplifier input stage
  • op amp input stage

Related Circuits

Preview of RC phase shift oscillator using op-amp

RC phase shift oscillator using op-amp

by luminstarboy

6642
2
copy
67
Preview of R-2R ladder type DAC

R-2R ladder type DAC

by luminstarboy

6339
0
copy
148
Preview of LOW PASS FILTER

LOW PASS FILTER

by Zulfath

5341
2
copy
34

© 2024 National Instruments Corp. ALL RIGHTS RESERVED.

Hosted Services Terms Privacy Policy Export Notices Terms of Use

Circuit Graph

✕
Graph image for JFET - BJT Operational Amplifier Input Stage

Remove Comment

✕

Are you sure you want to remove your comment? This action cannot be undone.

Cancel Remove Comment

✕
Cancel Send

Enter Email

✕