Abstract
An InP-based HBT technology with peak ft∼135GHz is used to design and fabricate several 3-stage limiting amplifier with high margin at >40Gbps. Feedback techniques are used in all design for the first two stages. The different designs compare the conventional (resistive load) differential pair output buffer with a feedback (active load) transimpedance output buffer. The common differential specifications are S11 and S22 < -15dB and S21 > 25dB with output swing >500mV. Results show that the design with the negative feedback output buffer has a lower small-signal bandwidth but a larger 40Gb/s eye opening than design with the conventional differential pair output buffer.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2269-2272 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 3 |
| State | Published - 2003 |
| Externally published | Yes |
| Event | 2003 IEEE MTT-S International Microwave Symposium Digest - Philadelphia, PA, United States Duration: Jun 8 2003 → Jun 13 2003 |
All Science Journal Classification (ASJC) codes
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering