Speed enhanced level shifting circuit utilizing diode capacitanc

Details Speed enhanced level shifting circuit utilizing diode capacitanc Speed enhanced level shifting circuit utilizing diode capacitanc

1992-09-01

1998-12-22

Tokar, Michael J.

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326126, 326 17, H03K 190175

Patent

active

058523677

ABSTRACT:
A level shifting circuit operating at low power with minimal signal delays. The circuit employs high capacitance diodes to shift signals from a first signal level to a second higher or lower signal level. The capacitance is obtained by either providing a discrete capacitor shunt across the diode or by using diode connected transistors. Diode connected transistors are biased to provide the necessary capacitance. A pair of high capacitance diode level shifters is used as a differential pair level shifter by connecting the reference resistors to a common reference potential.

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RADIO FERNSEHEN ELEKTRONIK, vol. 27, No. 11, Nov. 1978, East Berlin, DDR, pp. 687-691, H. E. Krobel.
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"Microelectronic Circuits", Sedra et al., .COPYRGT. 1987 by Holt, Rinehart and Winston, Inc., pp. 170, 171, 195 and 453.

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