Abstract
An InP HBT technology developed at Lucent Technologies Bell Laboratories, with peak ft to approximately 100 GHz is used to design and fabricate a limiting amplifier with high gain and bandwidth margin at 10 Gbps. Feedback techniques are used to obtain >30 dB differential gain with >10 GHz bandwidth for the packaged chip. The design reduces current density with standard cell transistors to improve circuit reliability (at the expense of performance). Stable operating conditions are found by adjusting the DC bias tail currents. The limiting output is set by the current in the output stage. Open eyes are obtained even with >2 V differential output. Depending on the required output swing, the power consumption is 200-500 mW (at Vee to approximately -3.5 to -4.5 V).
Original language | English (US) |
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Pages (from-to) | 71-74 |
Number of pages | 4 |
Journal | Conference Proceedings - International Conference on Indium Phosphide and Related Materials |
State | Published - 1999 |
Externally published | Yes |
Event | Proceedings of the 1999 11th International Conference on Indium Phosphide and Related Materials (IPRM) - Davos, Switz Duration: May 16 1999 → May 20 1999 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering