Inverting delay circuit

Details Inverting delay circuit Inverting delay circuit

1994-03-23

1996-05-07

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327337, 327345, 327266, H03K 500

Patent

active

055149979

ABSTRACT:
An inverting delay circuit including a differential amplifier (OTA) having a non-inverting input (+) coupled to ground, an inverting input (-) and an output; an input capacitor (Cin) which is coupled between an input of the inverting delay circuit and the inverting input (-) during a first switching phase (.phi.), and which is discharged during a second switching phase (); a feedback capacitor (Cx) which is coupled between the output and the inverting input (-) of the differential amplifier (OTA) during the first switching phase (.phi.), and between the inverting input (-) and ground during the second switching phase (); and an output capacitor (Co) which is coupled between the output and the inverting input (-) during the second switching phase (), the output capacitor (Co) being discharged during the first switching phase (.phi.), a charge on the feedback capacitor (Cx) being transferred to the output capacitor (Co) during the second switching phase ().

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Increasing the Clock Frequency of Switched-Capacitor Filters by T. R. Viswanatham, Electronics Letters 24th Apr. 1980.
Electronics Letters, 11th May 1989, vol. 25, No. 10, pp. 623-625.

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