公开(公告)号：US20170366876A1

公开(公告)日：2017-12-21

申请号：US15622607

申请日：2017-06-14

Applicant: Analog Devices Global

Inventor： Vinayak Agrawal ,  Gaurav Gupta ,  John Cleary ,  Ken M. Feen

IPC: H04Q9/00 ,  H04Q11/00 ,  H04L25/02

CPC classification number: H04Q9/00 ,  G06K9/0002 ,  H04L25/0272 ,  H04Q11/00

Abstract: Aspects of the embodiments are directed an analog front end circuit (AFE circuit), the AFE circuit including a beamforming circuit configured to receive as an input a plurality of receiver inputs, the receiver inputs coupled to a sensor element. The beamforming circuit can include a plurality of receiver sub-circuits, each sub-circuit including a digital-to-analog converter, a low noise amplifier, and an I/Q mixer circuit element; an adder circuit element at an output of the I/Q mixer circuit element; and a multiplexer coupled to an output of the adder circuit. The AFE can be part of a current sensing device. The current sensing device can include a two-dimensional array of sensor elements.