Circuit arrangement for forming the square root of an input sign

Details Circuit arrangement for forming the square root of an input sign Circuit arrangement for forming the square root of an input sign

1996-05-13

1997-11-11

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Exponential

327346, G06F 7556

Patent

active

056868529

ABSTRACT:
A circuit arrangement for forming the square root of an input signal in at least one quadrant. The input signal is fed to the input of a first differential amplifier, the current outputs of which work on two diodes. The two outputs of the first differential amplifier are also connected to the inputs of a second differential amplifier, from one output of which there is a feedback via a diode to one of the outputs of the first differential amplifier. The collectors of the second differential amplifier work on current sources.

REFERENCES:
patent: 4705969 (1987-11-01), Gross
patent: 5352944 (1994-10-01), Sacchi et al.
patent: 5471173 (1995-11-01), Moore et al.
"Analoge Schaltungen"; Seifart; VEB Verlag Technik Berlin, 1987, pp. 366-395.
Burr-Brown Integrated Circuits Data Book, vol. 33, pp. 5-109, 5-114; 1989.

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