Samsung Electronics Co., Ltd.

Daesik Moon

Young-Soo Sohn

Kyung-Soo Ha

Ki-Seok Oh

Donghun Lee

Changkyo Lee

Young-Hoon Son

Hyun-Yoon Cho

Seokhun Hyun

Youngcheol Chae

An apparatus configured to convert an analog input signal into a digital output signal may include a first amplification circuit configured to receive the analog input signal and a plurality of reference voltages and amplify differences between the analog input signal and the plurality of reference voltages; a plurality of first capacitors configured to respectively store charges corresponding to signals outputted by the first amplification circuit; a second amplification circuit configured to amplify differences among voltages of the plurality of first capacitors; a plurality of second capacitors configured to respectively store charges corresponding to signals outputted by the second amplification circuit; and a comparison circuit configured to generate the digital output signal by comparing voltages of the plurality of second capacitors with each other.

Apparatuses and methods for fast analog-to-digital conversion

A memory device includes a driver that drives a data line connected with an external device, an internal ZQ manager that generates an internal ZQ start signal, a selector that selects one of the internal ZQ start signal and a ZQ start command from the external device, based on a ZQ mode, a ZQ calibration engine that generates a ZQ code by performing ZQ calibration in response to a selection result of the selector, and a ZQ code register that loads the ZQ code onto the driver in response to a ZQ calibration command from the external device.

Memory device, memory system, and operation method of memory device

Memory device performing ZQ calibration, memory system, and operation method of memory device

Growing community of inventors

Suwon-si, South Korea

Daesik Moon