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MAX4444：Ultra-High-Speed, Low-Distortion, Differential-to-Single-Ended Line Receivers with Enable

The MAX4444/MAX4445 differential line receivers offer unparalleled high-speed, low-distortion performance. Using a three op amp instrumentation amplifier architecture, these ICs have symmetrical differential inputs and a single-ended output. They operate from ±5V supplies and are capable of driving a 100Ω load to ±3.7V. The MAX4444 has an internally set closed-loop gain of +2V/V, while the MAX4445 is compensated for gains of +2V/V or greater, set by an external resistor. A low-power enable mode reduces current consumption to 3.5mA. Using current-feedback techniques, the MAX4444/MAX4445 achieve a 550MHz bandwidth while maintaining up to a 5000V/µs slew rate. Excellent differential gain/phase and noise specifications make these amplifiers ideal for a wide variety of video and RF signal-processing applications. An evaluation kit is available to speed design.

Key Features 5000V/µs Slew Rate (MAX4444) +2V/V Internally Fixed Gain (MAX4444) External Gain Selection (MAX4445, AVCL ≥ +2V/V) 550MHz -3dB Bandwidth -60dB SFDR at 5MHz Low Differential Gain/Phase: 0.07%/0.05° Low Noise: 25nV/ at fIN = 100kHz Low-Power Disable Mode Reduces Quiescent Current to 3.5mA

MAX4444, MAX4445: Typical Operating Circuit Applications/Uses Data Acquisition Differential to Single-Ended Conversion High-Speed Differential Line Receiver High-Speed Instrumentation Amplifier Medical Instrumentation Twisted-Pair to Coaxial Converter

DataSheet

Parametrics

Design kits & evaluation modules

• MAX4444EVKIT

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