Patent ID: 9531360
Filing Date: 2016-12-27
CPC Classification: H03K

Claim Text:
1. An apparatus comprising: an input difference determination circuit configured to determine a digital value based on a difference between first and second input signals, the input difference determination circuit including first, second, third, and fourth transistors, the first transistor and the second transistor cross-coupled to each other and the third and fourth transistors coupled to a first supply voltage, wherein: a charge pump configured to provide a second supply voltage to the first and second transistors to determine the digital value; and a reset circuit configured to receive a reset signal, to reset the first and second output nodes when the reset signal has a first value, and to provide the first supply voltage to the charge pump when the reset signal has the first value, wherein the first and second transistors are configured to have transconductance values that are greater than those of the third and fourth transistors, respectively.