AN Improved Solid-State Logarithmic Amplifier
Journal Article
·
· IEEE Transactions on Nuclear Science
A logarithmic amplifier is described which is composed entirely of solid state components. Logarithmic characteristics can be improved by the compensation of low saturation current Si-diodes with an appropriate Ge-diode. By the use of reverse-biased Si-diode dielectric modulator as the input stage of the amplifier. an input resistance of 5 x 10/sup 10/ ohms and a signal threshold of 10⁻¹¹ amp are obtained at room temperature. A range of 7 decades is covered. that is, from 5 x 10⁻¹¹ to 5 x 10⁻⁴ amp, with the accuracy less than plus or minus 2% of a decade and the temperature drift less than plus or minus 0.005 dec/ deg C over a temperature range from 0 to 50 deg C. (auth)
- Research Organization:
- Mitsubishi Atomic Power Industries, Inc., Omiya, Japan; IEEE (Inst. Elec. Electron. Engrs.)
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-032349
- OSTI ID:
- 4663244
- Journal Information:
- IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 3 Vol. 10; ISSN 0018-9499
- Publisher:
- Institute of Electrical and Electronics Engineers (IEEE)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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