A parallel input composite transimpedance amplifier

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Title
A parallel input composite transimpedance amplifier
Author(s)
D. J. Kim; Choong Hyun Kim
Publication Date
2018-01
Journal
Review of Scientific Instruments, v.89, no.1, pp.014705 -
Publisher
REVIEW OF SCIENTIFIC INSTRUMENTS
Abstract
A new approach to high performance current to voltage preamplifier design is presented. The design using multiple operational amplifiers (op-amps) has a parasitic capacitance compensation network and a composite amplifier topology for fast, precision, and low noise performance. The input stage consisting of a parallel linked JFET op-amps and a high-speed bipolar junction transistor (BJT) gain stage driving the output in the composite amplifier topology, cooperating with the capacitance compensation feedback network, ensures wide bandwidth stability in the presence of input capacitance above 40 nF. The design is ideal for any two-probe measurement, including high impedance transport and scanning tunneling microscopy measurements. © 2018 Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/4699
ISSN
0034-6748
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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