Published July 2017
| Version v1
Journal article
Design of preamplifier for output current measurement system of semiconductor detector
Creators
- 1. Department of Instrument Science and Technology, National University of Defense Technology, Changsha (China)
Description
In order to meet the needs of the semiconductor detector output current measurement system, designed with the corresponding preamplifier. The preamplifier is based on the ultra-low bias current op amp ADA4530, using a single feedback resistor and a T-feedback network of I/V conversion preamplifier circuits. The results show that the preamplifier has a gain of 10 mV/pA and a DC offset of 8 μV. For the pA resolution, the output noise voltage density is only 17.75 nV/(Hz)1/2, and the total noise is 409 μV. It can be used for the range of pA∼pA current signal measurement of nuclear radiation detector. (authors)
Additional details
Publishing Information
- Journal Title
- Nuclear Electronics and Detection Technology
- Journal Volume
- 37
- Journal Issue
- 7
- Journal Page Range
- p. 667-672
- ISSN
- 0258-0934
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 53032782
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- DESIGN; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; FEEDBACK; MEASURING INSTRUMENTS; NOISE; PREAMPLIFIERS; RESISTORS; SEMICONDUCTOR DETECTORS; SIGNALS
- Descriptors DEC
- AMPLIFIERS; CURRENTS; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; EQUIPMENT; MEASURING INSTRUMENTS; RADIATION DETECTORS
Optional Information
- Notes
- 10 figs., 3 tabs., 6 refs.