Abstract
Blocking and desensitization are among the nonlinear effects that result when bipolar and MOSFET differential amplifiers are operating in a multisignal electromagnetic interference (EMI) environment. When a weak desired signal is processed along with a strong undesired interferer signal, the weak signal may experience a reduced gain; that is, desensitization. If the amplitude of the undesired signal is sufficiently large, the gain of the desired signal may drop to zero; that is, blocking. Using a Fourier-series model for the differential input-voltage/output-current characteristics, closed-form expressions for predicting the desensitization in bipolar and MOSFET differential amplifiers are presented. These expressions are valid over a wide range of desired and blocking interfering signals amplitudes.
| Original language | English |
|---|---|
| Pages (from-to) | 393-398 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Electromagnetic Compatibility |
| Volume | 41 |
| Issue number | 4 PART 1 |
| DOIs | |
| State | Published - 1999 |
Keywords
- Amplifiers
- Nonlinear circuits
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering
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