Patent ID: 11955978
Assignee: BLUE CHEETAH ANALOG DESIGN, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 21:
22. A circuit for a voltage comparator comprising:
a first transistor;
a second transistor for receiving a first input voltage at a second transistor gate terminal and a third transistor for receiving a second input voltage at a third transistor gate terminal, the second transistor and the third transistor connected to the first transistor at a first node;
a fourth transistor and a fifth transistor, the fourth transistor connected to the second transistor at a second node and the fifth transistor connected to the third transistor at a third node;
one or more capacitors connected between the third node and a fourth node, the fourth node comprising the second transistor gate terminal;
one or more capacitors connected between the second node and a fifth node, the fifth node comprising the third transistor gate terminal, wherein the circuit is configured to:
pre-charge to a bias voltage the first node, the second node, and the third node during a first operating phase;
sample the first input voltage at the fourth node and sample the second input voltage at the fifth node during a second operating phase;
pull-up the second node and the third node from the bias voltage to a supply voltage during a third operating phase; and
pull-down the first node from the bias voltage to a ground during a fourth operating phase.