| Autor: |
Lepaisant, J., Lam Chok Sing, M., Bloyet, D. |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; Mar92, Vol. 63 Issue 3, p2089, 6p |
| Abstrakt: |
We describe the design, schematics, and performances of a very-low-noise, low-frequency preamplifier. It operates in the 5 Hz–100 kHz range and offers an input equivalent voltage noise density as low as 65 pV/[Square_Root]Hz; the current noise increases with frequency and settles to about 1.5 pA/[Square_Root]Hz at 100 kHz. The amplifier uses input and feedback signal transformers and operates in full differential mode; a -163 dB common-mode rejection ratio is achieved at line frequency. Design methodology is applicable to other ranges of frequencies. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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