AD8055/AD8056 are low cost 300MHz voltage feedback amplifiers with single/dual channels, easy-to-use voltage feedback architecture, bandwidth up to 300MHz, 1400V/µs slew rate, 20ns settling to 0.1%, low distortion(-72dBc@10MHz), low noise(6nV/√Hz), low DC errors(5mV Max VOS, 1.2µA Max IB), small size(AD8055 is SOT-23-5, AD8056 is 8-Lead MSOP), excellent video specifications(RL=150Ω, G=+2), gain flatness 0.1dB to 40MHz, 0.01% differential gain error, 0.02° differential phase error, drive 4 video loads(37.5V), low power(-5V supply), 5mA typical/amplifier power supply current, high output drive current(over 60mA).
The AD8055 and AD8056 voltage‑feedback amplifiers provide bandwidth and slew‑rate performance typically found in current‑feedback devices, while remaining inexpensive and easy to use. They are offered in small‑package options such as SOT‑23‑5, 8‑lead MSOP, PDIP, and SOIC, making them suitable for portable and battery‑powered applications.
Key features include a –3 dB bandwidth of up to 300 MHz (gain +1), 1400 V/µs slew rate, low input noise (6 nV/√Hz), and the ability to drive over 60 mA output current. The devices operate from ±5 V or a single +12 V supply and are available in extended temperature ranges (‑40 °C to +125 °C).
| Input Voltage Noise (100 kHz) | 6 nV/√Hz |
|---|---|
| Short‑Circuit Output Current | 110 mA |
| Power Supply Operating Range | ±5 V or +12 V |
The input voltage noise is 6 nV/√Hz measured at 100 kHz.
The device can source up to 110 mA in a short‑circuit condition.