The AD8055/AD8056 is a low-cost, 300 MHz voltage feedback amplifier with an easy-to-use voltage feedback architecture, high speed, low distortion, low noise and low DC errors.
The AD8055 (single) and AD8056 (dual) are voltage‑feedback amplifiers offering 300 MHz bandwidth, 1400 V/µs slew rate and 20 ns settling time. They operate from ±5 V supplies, draw low quiescent current (≈5 mA for AD8055) and can source over 60 mA into loads, making them suitable for portable, battery‑powered and video applications.
Typical applications include imaging photodiode preamps, video line drivers, differential line drivers and low‑noise preamplifiers. The datasheet provides detailed specifications, absolute maximum ratings, power‑dissipation limits, recommended resistor selection, and package dimensions for various SOT‑23, MSOP, PDIP and SOIC options.
| Settling Time to 0.1 % (G=+2, V0=2 V step) | 20 ns |
|---|---|
| Input Voltage Noise (100 kHz) | 6 nV/√Hz |
| Maximum Output Current | over 60 mA |
| Quiescent Current (AD8055 typical) | 5.4 mA |
The typical quiescent current for the AD8055 is about 5.4 mA.
The devices operate from a typical ±5 V supply, with an allowable range of ±4 V to ±6 V.
Both amplifiers can source over 60 mA of output current.