General Description

The MAX4223–MAX4228 current-feedback amplifiers combine ultra-high-speed performance, low distortion, and excellent video specifications with low-power operation. The MAX4223/MAX4224/MAX4226/MAX4228 have a shutdown feature that reduces power-supply current to 350µA and places the outputs into a high impedance state. These devices operate with dual supplies ranging from ±2.85V to ±5.5V and provide a typical output drive current of 80mA. The MAX4223/MAX4225/MAX4226 are optimized for a closed-loop gain of +1 (0dB) or more and have a -3dB bandwidth of 1GHz, while the MAX4224/MAX4227/MAX4228 are compensated for a closed-loop gain of +2 (6dB) or more, and have a -3dB bandwidth of 600MHz (1.2GHz gain-bandwidth product).

Features

♦ Ultra-High Speed and Fast Settling Time:

1GHz -3dB Bandwidth (MAX4223, Gain = +1)

600MHz -3dB Bandwidth (MAX4224, Gain = +2)

1700V/µs Slew Rate (MAX4224)

5ns Settling Time to 0.1 (MAX4224)

♦ Excellent Video Specifications (MAX4223):

Gain Flatness of 0.1dB to 300MHz

0.01/0.02° DG/DP Errors

♦ Low Distortion:

-60dBc THD (fc = 10MHz)

42dBm Third-Order Intercept (f = 30MHz)

♦ 6.0mA Quiescent Supply Current (per amplifier)

♦ Shutdown Mode:

350µA Supply Current (per amplifier)

100kΩ Output Impedance

♦ High Output Drive Capability:

80mA Output Current

Drives up to 4 Back-Terminated 75Ω Loads to

±2.5V while Maintaining Excellent Differential

Gain/Phase Characteristics

♦ Available in Tiny 6-Pin SOT23 and 10-Pin µMAX Packages

Applications

ADC Input Buffers

Data Communications

Video Cameras

Video Line Drivers

Video Switches

Video Multiplexing

Video Editors

XDSL Drivers

RF Receivers

Differential Line Drivers