+ Click here to ask about the production status of specific part numbers. MAX44290 1.8V, 15MHz, Low-Offset, Low-Power, Rail-to- Rail I/O Op Amp General Description Benefits and Features The MAX44290 offers a unique combination of high- Low 1.8V Supply Rail over the -40C to +125C speed, precision, and low-voltage operation, making it ide- Range ally suited for a large number of signal-processing func- 1.7V Supply Rail over 0C to +70C Range tions, such as filtering and amplification of signals in 15MHz Unity-Gain Bandwidth portable and industrial equipment. Low 12.7nV/ Hz Input Voltage-Noise Density Low 50V (max) Input Offset Voltage at +25C This amplifier features an input offset of less than 50V 500fA Low Input Bias Current and a high-gain bandwidth product of 15MHz while main- 750A Quiescent Current taining a low 1.8V supply rail. The devices rail-to-rail in- <1A Supply Current in Shutdown put/outputs and low noise guarantee maximum dynamic Low 105dB Total Harmonic Distortion range in demanding applications, such as 12- to 14-bit SAR ADC drivers. Unlike traditional rail-to-rail input struc- Ordering Information appears at end of data sheet. tures, input crossover distortion is absent due to an opti- mized input stage with an ultra-quiet charge pump. The device includes a fast-power-on shutdown mode for further power savings. The operational amplifier operates from a supply range of 1.8V to 5.5V over the -40C to +125C temperature range, and can operate down to 1.7V over the 0C to +70C temperature range. It is available in a tiny, 6-bump wafer-level package (WLP) with 0.4mm pitch. Applications Notebooks 3G/4G Handsets Portable Medical Instruments Battery-Operated Devices Analog-to-Digital Converter Buffers Transimpedance Amplifiers General-Purpose Signal Processing Pin Configuration TOP VIEW MAX44290 SHDN OUT V DD A1 A2 A3 B1 B2 B3 IN+ V IN- SS WLP 19-8452 Rev 4 2/21MAX44290 1.8V, 15MHz, Low-Offset, Low-Power, Rail-to-Rail I/O Op Amp TABLE OF CONTENTS General Description 1 Applications 1 Benefits and Features 1 Pin Configuration 1 Absolute Maximum Ratings 4 Package Information . 4 6 WLP 4 Electrical Characteristics . 5 Typical Operating Characteristics 8 Pin Configuration . 11 Pin Description 11 Detailed Description 13 Crossover Distortion 13 Applications Information . 15 Power-Up Autotrim . 15 Shutdown Operation 15 Rail-to-Rail Input/Output . 15 Input Bias Current . 15 Driver for Interfacing with the MAX11645 ADC . 16 High-Impedance Source/Sensor Preamp Application 16 Typical Application Circuits . 16 Sallen-Key Filter . 16 Howland Current Pump . 17 Ordering Information 17 Revision History . 18 www.maximintegrated.com Maxim Integrated 2