Low Cost, 300 MHz Rail-to-Rail Amplifier (Single with Disable)

The AD8061/AD8062/AD8063 are rail-to-rail output voltage feedback amplifiers offering ease of use and low cost. They have a bandwidth and slew rate typically found in current feedback amplifiers. All have a wide input common-mode voltage range and output voltage swing, making them easy to use on single supplies as low as 2.7 V.

Despite being low cost, the AD8061/AD8062/AD8063 provide excellent overall performance. For video applications, their differential gain and phase errors are 0.01% and 0.04° into a 150 Ω load, along with 0.1 dB flatness out to 30 MHz. Addi-tionally, they offer wide bandwidth to 300 MHz along with 650 V/μs slew rate.

The AD8061/AD8062/AD8063 offer a typical low power of 6.8 mA/amplifier, while being capable of delivering up to 50 mA of load current. The AD8063 has a power-down disable feature that reduces the supply current to 400 μA. These features make the AD8063 ideal for portable and battery-powered applications where size and power are critical.

Applications

* Imaging

* Photodiode preamps

* Professional video and cameras

* Handsets

* DVDs/CDs

* Base stations

* Filters

* ADC drivers

* Clock buffers

* Low cost

* Single (AD8061), dual (AD8062)

* Single with disable (AD8063)

* Low offset voltage: 6 mV

* High speed

300 MHz, −3 dB bandwidth

(G = 1)

650 V/μs slew rate

8.5 nV/√Hz at 5 V

35 ns settling time to 0.1%

with 1 V step

* Operates on 2.7 V to 8 V supplies

Input voltage range = −0.2 V to +3.2 V with Vs = 5 V

* Excellent video specifications (RL = 150 Ω, G = 2)

Gain flatness: 0.1 dB to 30 MHz

0.01% differential gain error

0.04° differential phase error

35 ns overload recovery

* Low power

6.8 mA/amplifier typical supply current

400 μA when disabled