描述 Description

The MAX4285/MAX4286 single and MAX4287/MAX4288/MAX4387/MAX4388 dual ADC buffer amplifiers feature high-speed performance and single +3V supply operation. The MAX4285/MAX4286/MAX4288 and MAX4388 offer a disable feature that reduces power-supply current and places the outputs in a high-impedance state. All six devices operate from a +2.85V to +6.5V single supply or from ±1.425V to ±3.25V dual supplies. The common-mode input voltage range extends to the negative power-supply rail (ground in single-supply applications).
These devices require 20mA of quiescent supply current per amplifier while achieving a 250MHz -3dB bandwidth and a 350V/μs slew rate. The combination of an 8ns (to 0.1%) settling time, 88dBc (f = 5MHz) of SFDR, and up to 100mA output drive makes these amplifiers ideal for high-speed ADC drivers for communications and instrumentation applications. In addition, when disabled, their high output impedance makes them ideal for multiplexing applications. The MAX4285/MAX4286 are available in space-saving 6-pin SOT23 and 8-pin SO packages. The MAX4287/MAX4387 come in 8-pin μMAX? and 8-pin SO packages, while the MAX4288/MAX4388 come in 10-pin μMAX and 14-pin SO packages.

特性 Features

? High Speed at 3V
? 250MHz -3dB Bandwidth (MAX4285/87/88)
? 150MHz -3dB Bandwidth (MAX4286, MAX4387/88)
? 350V/μs Slew Rate
? +2.85V to +6.5V Single-Supply Operation
? Input Common-Mode Range Extends to VEE
? Low Distortion at 5MHz
? -88dBc SFDR
? High Output Current Drive: -106mA to +77mA
? 6ns Settling Time to 0.1%
? High-Speed Enable/Disable
? 40ns Enable Time
? 50ns Disable Time
? High Output Impedance
? Space-Saving SOT23 and μMAX Packages

應(yīng)用 Application

? CCD成像
? 通信系統(tǒng)
? 高速ADC驅(qū)動(dòng)器
? 儀表
? 超聲