General Description

The MAX2470/MAX2471 are flexible, low-cost, highreverse-isolation buffer amplifiers for applications with discrete and module-based VCO designs. Both feature differential 50Ω outputs for driving a single differential (balanced) load or two separate single-ended (unbalanced) 50Ω loads. The MAX2470 offers a single-ended input and has two selectable frequency ranges of operation: 10MHz to 500MHz and 10MHz to 200MHz. The MAX2471 offers a differential input and operates from 10MHz to 500MHz. The MAX2470/MAX2471 also feature high input impedance for maximum flexibility, enabling them to be used with a variety of oscillator topologies. High reverse isolation combined with low supply current make them ideal for applications requiring high performance with low power

Features

♦ +2.7V to +5.5V Supply Range

♦ Input Frequency Range

High: 10MHz to 500MHz (MAX2470/2471)

Low: 10MHz to 200MHz (MAX2470)

♦ >14dB Power Gain at 200MHz

♦ 64dB Typical Reverse Isolation at 200MHz

♦ Low-Distortion Output Drive

♦ Ultra-Small SOT23-6 Package

♦ High Input Impedance

♦ Single-Ended (MAX2470) or Differential (MAX2471) Inputs

Applications

Cellular and PCS Mobile Phones

ISM-Band Applications

Active Baluns

General-Purpose Buffers/Amplifiers