Method and device for TIA overload control in low power applications
US10116263B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2017 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | May 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/693
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transimpedance amplifier (TIA) device and method of operation therefor. The TIA device can include a semiconductor substrate, a TIA with an input and output configured on the semiconductor substrate, and an overload buffer module coupled to the input terminal of the TIA. The overload buffer module can include a variable current source having an input and an output, and a biased buffer diode coupled to the output of the variable current source and to a ground node. The method of operation can include replicating, by the overload buffer module, the current-voltage (I/V) characteristics of the DC input signal at the output of the overload buffer module, wherein the overload buffer module reduces a total harmonic distortion (THD) of a DC output signal from the output of the TIA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.