• 简体中文
• English

MAX4245：Ultra-Small, Rail-to-Rail I/O with Disable, Single/Dual-Supply, Low-Power Op Amps

The MAX4245/MAX4246/MAX4247 family of low-cost op amps offer rail-to-rail inputs and outputs, draw only 320µA of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4245/MAX4247 offer a low-power shutdown mode that reduces supply current to 50nA, and puts the amplifiers' outputs in a high-impedance state. These devices are unity-gain stable with a 1MHz gain-bandwidth product driving capacitive loads up to 470pF. The MAX4245/MAX4246/MAX4247 family is specified from -40°C to +125°C, making them suitable for use in a variety of harsh environments. The MAX4245 single amplifier is available in ultra-small 6-pin SC70 and space-saving 6-pin SOT23 packages. The MAX4246 dual amplifier is available in 8-pin, SO, SOT23 and µMAX® packages. The MAX4247 dual amplifier comes in a tiny 10-pin µMAX package.

Key Features Rail-to-Rail Input and Output Voltage Swing 50nA (max) Shutdown Mode (MAX4245/MAX4247) 320µA (typ) Quiescent Current Per Amplifier Single +2.5V to +5.5V Supply Voltage Range 110dB Open-Loop Gain with 2kΩ Load 0.01% THD with 100kΩ Load Unity-Gain Stable up to CLOAD = 470pF No Phase Inversion for Overdriven Inputs Available in Space-Saving Packages 6-Pin SC70 or 6-Pin SOT23 (MAX4245) 8-Pin SOT23/SO or 8-Pin µMAX (MAX4246) 10-Pin µMAX (MAX4247)

MAX4245, MAX4246, MAX4247: Pin Configurations Applications/Uses Automotive Sensors Base Station/Wireless Infrastructure Computers: Desktops, Workstations, and Servers Computers: Motherboards Computers: Notebook Electronic Ignition Modules GPS Solutions Infrared Receivers Instruments and Terminals MP3 Docking Stations: Mid Level Portable Communications Programmable Logic Controllers (PLCs) Sensor-Signal Detection Set-Top Boxes Single-Supply Zero-Crossing Detectors

DataSheet

Parametrics

Quality and Environmental Data

• MAX4245.pdf

Ordering Information