AD810ANZ High-Speed 300MHz Current Feedback Op Amp 2000V/µs Slew Rate Low Differential Gain/Phase Error of 0.02%/0.02° Stable on High Capacitive Loads for Professional Video and RF Systems

AD810ANZ High-Speed 300MHz Current Feedback Op Amp 2000V/µs Slew Rate Low Differential Gain/Phase Error of 0.02%/0.02° Stable on High Capacitive Loads for Professional Video and RF Systems

FEATURES

High speed

  80 MHz typical −3 dB bandwidth (G = +1)

  75 MHz typical −3 dB bandwidth (G = +2)

  1000 V/µs typical slew rate

  50 ns typical settling time to 0.1% (VOUT = 10 V step)

Ideal for video applications

  30 MHz typical 0.1 dB bandwidth (G = +2, VS = ±15 V)

  0.02% typical differential gain (VS = ±15 V)

  0.04° typical differential phase (VS = ±15 V)

Low noise

  2.9 nV/√Hz typical input voltage noise

  13 pA/√Hz typical inverting input current noise

Low power

  8.0 mA maximum supply current (quiescent)

  2.1 mA typical supply current (power-down mode)

High performance disable function

  Turn off time: 100 ns typical

  Break before make guaranteed

  Input to output isolation of 64 dB (off state)

Flexible operation

Specified for ±5 V and ±15 V operation

±2.9 V typical output swing into a 150 Ω load (VS = ±5 V)

APPLICATIONS

Professional video cameras

Multimedia systems

NTSC-, PAL-, and SECAM-compatible systems

Video line drivers

ADC or DAC buffers

DC restoration circuits

DESCRIPTION

The AD810 is a composite and HDTV-compatible, current feedback, video operational amplifier, ideal for use in systems such as multimedia, digital tape recorders, and video cameras. The 0.1 dB flatness specification at a bandwidth of 30 MHz (G = +2) and the differential gain and phase of 0.02% and 0.04° (NTSC) make the AD810 ideal for any broadcast quality video system. All these specifications are under load conditions of 150 Ω (one 75 Ω back terminated cable).

The AD810 is ideal for power sensitive applications such as video cameras, offering a low power supply current of 8.0 mA  maximum. The disable feature reduces the power supply current to only 2.1 mA, while the amplifier is not in use, to conserve power. Furthermore, the AD810 is specified over a power supply range of ±5 V to ±15 V.

The AD810 works well as an ADC or DAC buffer in video systems due to its unity gain (G = +1) −3 dB bandwidth of 80 MHz. Because the AD810 is a transimpedance amplifier, this bandwidth can be maintained over a wide range of gains while featuring a low noise of 2.9 nV/√Hz for wide dynamic range applications.

INFORMATION

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