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Design of A High Input Impedance OPA with Bi-JFET Technology
- Source :
- 2019 IEEE 2nd International Conference on Electronics Technology (ICET).
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- A high input impedance operational amplifier (OPA) with bipolar junction field effect transistor (Bi-JFET) technology is presented. By using JFET differential pair, it achieves very low input bias offset current (pA magnitude) and low noise (3 nV/sqrt(Hz)). Moreover, bipolar gain stage and output stage provides high open-loop gain (120 dB), high output voltage slew rate (more than 10 V/μs) and broadband performance (more than 10 MHz). The proposed OPA is very suitable for detecting and amplifying all kinds of weak signals.
Details
- Database :
- OpenAIRE
- Journal :
- 2019 IEEE 2nd International Conference on Electronics Technology (ICET)
- Accession number :
- edsair.doi...........07fdf331076cad158847a0ffda64ba08