300MHz High-Speed Op Amp

The MAX477 is a ±5V wide-bandwidth, fast-settling, unity-gain-stable op amp featuring low noise, low differential gain and phase errors, high slew rate, high precision, and high output current. The MAX477's architecture uses a standard voltage-feedback topology that can be configured into any desired gain setting, as with other general-purpose op amps.

Unlike high-speed amplifiers using current-mode feedback architectures, the MAX477 has a unique input stage that combines the benefits of the voltage-feedback design (flexibility in choice of feedback resistor, two high-impedance inputs) with those of the current-feedback design (high slew rate and full-power bandwidth). It also has the precision of voltage-feedback amplifiers, characterized by low input-offset voltage and bias current, low noise, and high common-mode and power-supply rejection.

The MAX477 is ideally suited for driving 50Ω or 75Ω loads. Available in DIP, SO, space-saving µMAX®, and SOT23 packages.

Applications

* Broadcast and High-Definition TV Systems * Communication Systems * Medical Imaging * Precision DAC/ADC Buffer * Video Routing and Switching Systems

* High Speed: * 300MHz -3dB Bandwidth (AV = +1)

* 200MHz Full-Power Bandwidth (AV = +1, Vo = 2Vp-p)

* 1100V/µs Slew Rate

* 130MHz 0.1dB Gain Flatness

* Drives 100pF Capacitive Loads Without Oscillation

* Low Differential Phase/Gain Error: 0.01°/0.01%

* 8mA Quiescent Current

* Low Input-Referred Voltage Noise: 5nV per root-Hz

* Low Input-Referred Current Noise: 2pA per root-Hz

* Low Input Offset Voltage: 0.5mV

* 8000V ESD Protection

* Voltage-Feedback Topology for Simple Design Configurations

* Short-Circuit Protected

* Available in Space-Saving SOT23 Package