公开(公告)号：US10481246B2

公开(公告)日：2019-11-19

申请号：US15934138

申请日：2018-03-23

Applicant: Analog Devices Global Unlimited Company

Inventor： Devrim Aksin ,  Yalcin Alper Eken

IPC: G01S7/497 ,  G01S7/481 ,  G01S17/10 ,  G01R31/40 ,  H03F3/08 ,  H03K3/03 ,  H03K5/00 ,  H03K5/14

Abstract: Embodiments of the present disclosure provide an optical range finder that includes a transimpedance amplifier (TIA) and a photodiode emulation circuitry for testing the TIA. The photodiode emulation circuitry may be coupled to an input port of the TIA and configured to receive one or more parameters specifying one or more characteristics of a test current signal to be provided to the TIA. The photodiode emulation circuitry may further be configured to provide the test current signal in accordance with the one or more parameters to the input port of the TIA while the photodiode is also coupled to the input port of the TIA.