Dual 600 MHz, 50 mW Current Feedback Amplifier

The AD8002 is a dual, low power, high speed amplifier designed to operate on ±5 V supplies. The AD8002 features unique transimpedance linearization circuitry, which allows the AD8002 to drive video loads with excellent differential gain and phase performance on only 50 mW of power per amplifier. The AD8002 is a current feedback amplifier and features gain flatness of 0.1 dB to 60 MHz while offering differential gain and phase error of 0.01% and 0.02°, which makes the AD8002 ideal for professional video electronics such as cameras and video switchers. Additionally, the low distortion and fast settling of the AD8002 make it ideal for buffer high speed analog-todigital converters (ADCs).

The AD8002 offers a low power of 5.0 mA/amp maximum (VS = ±5 V) and can run on a single 12 V power supply, yet is capable of delivering over 70 mA of load current. It is offered in 8-lead SOIC and MSOP packages. These features make this amplifier ideal for portable and battery-powered applications where size and power are critical.

The bandwidth of 600 MHz along with 1200 V/μs of slew rate make the AD8002 useful in many general-purpose high speed applications where dual power supplies of up to ±6 V and single supplies from 6 V to 12 V are needed. The AD8002 is available in the industrial temperature range of −40°C to +85°C.

Applications

Analog-to-digital drivers

Video line drivers

Differential line drivers

Professional cameras

Video switchers

Special effects

RF receivers

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

Gain flatness: 0.1 dB to 60 MHz

Differential gain error: 0.01%

Differential phase error: 0.02°

* Low power

Maximum power supply current (50 mW): 5.0 mA/amp

* High speed and fast settling

−3 dB bandwidth (G = +1): 600 MHz

−3 dB bandwidth (G = +2): 500 MHz

Slew rate: 1200 V/μs

Settling time to 0.1%: 16 ns

* Low distortion

THD at fC = 5 MHz: −65 dBc

Third-order intercept at f1 = 10 MHz: 33 dBm

* SFDR at f = 5 MHz: −66 dB

* Crosstalk at f = 5 MHz: −60 dB

* High output drive

Over 70 mA output current

Drives up to eight back terminated 75 Ω loads (four loads/side) while maintaining good differential gain/phase performance (0.01%/0.17°)

* Available in 8-lead SOIC and MSOP packages