Abstract
The paper presents a transimpedance amplifier (TIA) with automatic gain control for SDH/SONET (STM16/OC48) fibre optic applications. It features independent gain control, de-coupled from the bandwidth, wide dynamic range (5μA÷1.7mA) and high sensitivity (-24dBm). The equivalent input noise is typically 8pA/√Hz while the bandwidth of the amplifier is 1.9GHz (worst-case). The AGC regulates the differential transimpedance from 4kΩ at low currents (<50μApp) to 80Ω at high currents (>500/μApp). The amplifier remains linear up to 1.7mA and can withstand photodiode input currents up to 2.5mA. The typical power consumption of the amplifier is 85mW (3.3V supply) and the active area is about 0.72mm2. It is realized in a 30GHz fTBiCMOS process (Qubic3).
| Original language | British English |
|---|---|
| Article number | 1471365 |
| Pages (from-to) | 190-193 |
| Number of pages | 4 |
| Journal | European Solid-State Circuits Conference |
| State | Published - 2001 |
| Event | 27th European Solid-State Circuits Conference, ESSCIRC 2001 - Villach, Austria Duration: 18 Sep 2001 → 20 Sep 2001 |