Transimpedance amplifier (TIA) circuit and method
US9030263B2 · kind B2 · utility
7Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A TIA circuit and method are provided that merge the automatic gain control function with the bandwidth adjustment function to allow the TIA circuit to operate over a wide dynamic range at multiple data rates. The TIA circuit has an effective resistance that is adjustable for adjusting the gain and the bandwidth of the TIA circuit. The mechanism of the TIA circuit that is used to adjust the effective resistance, and hence the gain and bandwidth of the TIA circuit, is temperature independent, and as such, the performance of the TIA circuit is not affected by temperature variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.