Mos sense amplifier

Details Mos sense amplifier Mos sense amplifier

G - Physics

05

B

328/167, 330/20

G05B 1/01 (2006.01) G11C 7/06 (2006.01) H03K 3/356 (2006.01)

Patent

CA 1170729

MOS SENSE AMPLIFIER Abstract of the Disclosure A comparator circuit suitably configured and synchronously operated to distinguish between the levels of two input signals and to provide the relative standing of the levels in binary format. In one form, a symmetri- cally organized circuit having the fundamental structure of a bistable multivibrator is initially operated in a differential mode and subsequently transitioned to a latch mode. Appropriate constant current source biasing shifts the differential mode operation to optimize ampli- fier element gain characteristics for the levels of input signals received. The amplified difference between the two input signals is stored within various capacitive elements of the circuit output stages. During the differential mode, the bistable multivibrator cross- coupling elements are disabled. At the termination of the differential mode, the amplified difference between the two input signals provides the initial conditions for the regenerative dynamics associated with the onset of cross-coupling and the transition to the latched state. Preferably, the input signals and the bias circuit are disabled in synchronism with the cross- coupling operation, to provide a stable output from the multivibrator circuit in conventional binary format.

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