DocumentCode
1859289
Title
A high-input-impedance buffer
Author
Hribik, Jan ; Lanyi, Stefan ; Hruskovic, Miloslav
Author_Institution
Dept. of Radio Electron., Slovak Univ. of Technol., Bratislava
fYear
2008
fDate
24-25 April 2008
Firstpage
1
Lastpage
4
Abstract
A circuit diagram and an equivalent circuit of high-input-impedance buffer stage with bootstrapped input biasing resistor and power supply nodes are given. The efficiencies of the bootstrapping of the input biasing resistor and the power supply nodes are simulated in the equivalent circuit. The analysis of the equivalent circuit of the buffer leads to a set of equations for calculation of the voltage gain and the input impedance. Experimental results show the expected very high input impedance of the buffer.
Keywords
bootstrap circuits; buffer circuits; equivalent circuits; power supply circuits; bootstrapped input biasing resistor; equivalent circuit; high-input-impedance buffer stage; power supply nodes; Capacitance; Capacitors; Circuit testing; Equivalent circuits; Frequency; Impedance; Power supplies; Resistors; Signal processing; Voltage; High-input-impedance buffer; bootstrapping; input impedance; voltage gain;
fLanguage
English
Publisher
ieee
Conference_Titel
Radioelektronika, 2008 18th International Conference
Conference_Location
Prague
Print_ISBN
978-1-4244-2087-2
Electronic_ISBN
978-1-4244-2088-9
Type
conf
DOI
10.1109/RADIOELEK.2008.4542707
Filename
4542707
Link To Document