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MAX4131：Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply Rail-to-Rail I/O Op Amps

The MAX4130–MAX4134 family of operational amplifiers combines 10MHz gain-bandwidth product and excellent DC accuracy with Rail-to-Rail operation at the inputs and outputs. These devices require only 900µA per amplifier, and operate from either a single supply (+2.7V to +6.5V) or dual supplies (±1.35V to ±3.25V) with a common-mode voltage range that extends 250mV beyond VEE and VCC. They are capable of driving 250Ω loads and are unity-gain stable. In addition, the MAX4131/ MAX4133 feature a shutdown mode in which the outputs are placed in a high-impedance state and the supply current is reduced to only 25µA per amplifier. With their rail-to-rail input common-mode range and output swing, the MAX4130-MAX4134 are ideal for low-voltage, single-supply operation. Although the minimum operating voltage is specified at 2.7V, the devices typically operate down to 1.8V. In addition, low offset voltage and high speed make them the ideal signal-conditioning stages for precision, low-voltage data-acquisition systems. The MAX4130 is offered in the space-saving 5-pin SOT23 package. The MAX4131 is offered in the ultra-small 6-bump, 1mm x 1.5mm chip-scale package (UCSP™).

Key Features 6-Bump UCSP (MAX4131) +2.7V to +6.5V Single-Supply Operation Rail-to-Rail Input Common-Mode Voltage Range Rail-to-Rail Output Voltage Swing 10MHz Gain-Bandwidth Product 900µA Quiescent Current per Amplifier 25µA Shutdown Function (MAX4131/MAX4133) 200µV Offset Voltage No Phase Reversal for Overdriven Inputs Drive 250Ω Loads Stable with 160pF Capacitive Loads Unity-Gain Stable

MAX4130, MAX4131, MAX4132, MAX4133, MAX4134: Typical Operating Circuit Applications/Uses Automotive Sensors Base Station/Wireless Infrastructure Battery-Powered Instruments Computers: Desktops, Workstations, and Servers Computers: Motherboards Computers: Notebook Data Acquisition Systems Industrial: Process Measurement and Control Low-Power, Low-Voltage Applications Panel Meters Portable Equipment Programmable Logic Controllers (PLCs) Signal Conditioning

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