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MAX4323：Single/Dual/Quad, Low-Cost, UCSP/SOT23, Low-Power, Rail-to-Rail I/O Op Amps

The MAX4322/MAX4323/MAX4326/MAX4327/MAX4329 family of operational amplifiers combines wide bandwidth and excellent DC accuracy with rail-to-rail operation at the inputs and outputs. These devices consume only 650µA per amplifier and operate from either a single supply (2.4V to 6.5V) or dual supplies (±1.2V to ±3.25V). These unity-gain-stable amplifiers are capable of driving 250Ω loads and have a 5MHz gain-bandwidth product. The MAX4323 and MAX4327 feature a low-power shutdown mode that reduces supply current to 25µA and places the outputs in a high-impedance state. With their rail-to-rail input common-mode range and output swing, these amplifiers are ideal for low-voltage, single-supply operation. In addition, low offset voltage and high speed make them the ideal signal-conditioning stages for precision, low-voltage data-acquisition systems. The MAX4323 is offered in a small 6-bump chip-scale package (UCSP™). The MAX4322/MAX4323 are also available in space-saving SOT23 packages.

Key Features 6-Bump UCSP Package (MAX4323) 2.4V to 6.5V Single-Supply Operation Rail-to-rail Input Common-Mode Voltage Range Rail-to-rail Output Voltage Swing 5MHz Gain-Bandwidth Product 650µA Quiescent Current per Amplifier 700µV Offset Voltage No Phase Reversal for Overdriven Inputs Drive 250Ω Loads 25µA Shutdown Mode (MAX4323/MAX4327) Unity-Gain Stable for Capacitive Loads Up to 500pF

MAX4322, MAX4323, MAX4326, MAX4327, MAX4329: 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 GPS Solutions Low-Power, Low-Voltage Applications MP3 Docking Stations: Mid Level PA Biasing Portable Equipment Programmable Logic Controllers (PLCs) RSSI Systems Set-Top Boxes Signal Conditioning

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