MAX40263AVB+

The MAX40263 is a dual-channel operational amplifier with two channels that can be disabled separately with two individual pins. The MAX40263 offers a unique combination of highspeed, precision, and low-voltage operation, making it ideally suited for a large number of signal-processing functions such as filtering and amplification of signals in portable and industrial equipment. The MAX40263's rail-to-rail input/outputs and low noise guarantee maximum dynamic range in demanding applications such as 12- to 14-bit SAR ADC drivers. Unlike traditional rail-to-rail input structures, input crossover distortion is absent due to an optimized input stage with an ultra-quiet charge pump. The input offset voltage is as low as 50μv due to the autocalibration performed during power-up. The device also includes a fast-power-on shutdown mode for further power savings. The MAX40263 operates from a wide supply range of 1.8V to 5.5V over the -40°C to +125°C temperature range and consumes only 750μA (typ) supply current per channel. It is available in a tiny, 10-pin QFN package. The MAX40263 is an extension of the MAX44259/60/61/ 63 and MAX40110/11 families with individual shutdown pins for separate channels.

Applications

• Notebooks
• 3G/4G Handsets
• Portable Medical Instruments
• Battery-Operated Devices
• Analog-to-Digital Converter Buffers
• Transimpedance Amplifiers
• General-Purpose Signal Processing

Key features

• Wide Supply Range from 1.8V to 5.5V over the -40°C to +125°C Range
• Low 50μv (Max) Input Offset Voltage with Power-On Autocalibration at +25°C
• 15 MHz Unity-Gain Bandwidth
• Low 12.7nV/√Hz Input Voltage-Noise Density
• 750μA Quiescent Current per Channel
• Rail-to-Rail Inputs and Outputs
• <1.5ρA Low Input Bias Current at +25°C
• Power-Saving Shutdown Mode
• Separate Shutdown for Each Channel
• Low 105dB Total Harmonic Distortion
• No Phase Reversal in Overdrive Conditions