Intel Corporation

Ilya Kraimer

Ariel Cohen

Dror Lazar

Ram Livne

Ahmad B Khairi

Roee Eitan

Idan Lotan

Yosi Sanhedrai

Hen Sallem

A comparator is described. The comparator includes a differential pair having first and second transistors to respectively receive first and second input signals. The comparator also includes a current sink or source transistor coupled to respective source nodes of the first and second transistors. The current sink or source transistor is coupled to receive a fixed bias to keep the current sink transistor active so that large voltage changes on the source nodes is avoided. The comparator circuit includes a latch circuit coupled to respective drain nodes of the first and second transistors. The latch circuit is to reach a final state to present the comparator's output signal. The comparator includes a first switch circuit coupled between the first transistor's drain node and the latch circuit, and a second switch circuit coupled between the second transistor's drain node and the latch circuit. The first and second switch circuits to allow the first and second transistors' respective drain node voltage and source node voltage to enter and exit the comparator's comparison state at a same voltage.

High-speed, low power, low kickback noise comparator suitable for a multi-comparator successive approximation analog-to-digital converter (ADC)

Growing community of inventors

Haifa, Israel

Ilya Kraimer