Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Patent
1996-11-13
1999-02-09
Le, Dinh
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
328108, 328483, 328185, 328546, 326 56, H03K 17615, H03K 19082
Patent
active
058699953
ABSTRACT:
A high impedance node of a transimpedance stage drives the input of a unity-gain forward buffer. A unity-gain integrated back-buffer is enabled to drive the high-impedance node from the output of the forward buffer when the forward buffer is disabled. A voltage from the forward buffer limits the reverse-biasing of all transistors in the back-buffer when the back buffer is disabled, and a voltage from the back-buffer limits the reverse-biasing of all transistors in the forward buffer when the forward buffer is disabled. The output-driver transistors of the forward buffer are bootstrapped to the output voltage through resistors which, when the forward buffer is enabled, bias pre-driver transistor coupled to the output-driver transistors. Neither the forward buffer nor the back-buffer consume a significant amount of power when not enabled.
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Analog Devices Inc.
Le Dinh
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