MAX44280

PRODUCTION

1.8V, 50MHz, Low-Offset, Low-Power, Rail-to-Rail I/O Op Amp

High Bandwidth and Excellent V_OS Accuracy Over Time and Temperature

Data Sheet (Rev. 2) Product Selection Table

Part Models: 4
1ku List Price: Starting From $1.27

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Overview

Low 1.8V Supply Rail Over the -40°C to +125°C Range
1.7V Supply Rail Over the 0°C to +70°C Range
50MHz Bandwidth
Low 12.7nV/ Input Voltage-Noise Density
Low 1.2fA/ Input Current-Noise Density
Low 50µV (max) V_OS at +25°C
500fA Low Input Bias Current
750µA Quiescent Current per Amplifier
< 1µA Supply Current in Shutdown
Small, 2mm x 2mm SC70 and 1mm x 1.5mm Thin µDFN Packages
Low -110dB Total Harmonic Distortion
5V/V Minimum Stable Gain

The MAX44280 offers a unique combination of high speed, precision, low noise, 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 amplifier features an input offset of less than 50µV and a high-gain bandwidth product of 50MHz while maintaining a low 1.8V supply rail. The device is internally compensated for gains of 5V/V or greater. The device's rail-to-rail input/outputs and low noise guarantee maximum dynamic range in demanding applications such as 12- to 16-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 MAX44280 includes a fast-power-on shutdown mode for further power savings.

The MAX44280 operates from a supply range of 1.8V to 5.5V over the -40°C to +125°C temperature range and can operate down to 1.7V over the 0°C to +70°C temperature range. The MAX44280 is available in a small, 6-pin SC70 package and is also available in a 1mm x 1.5mm thin µDFN (ultra-thin LGA) package.

Applications

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

Part Models: 4
1ku List Price: Starting From $1.27

Documentation

Data Sheet 1

MAX44280: 1.8V, 50MHz, Low-Offset, Low-Power, Rail-to-Rail I/O Op Amp Data Sheet (Rev.2) 11/02/2012

Technical Articles 3

Passive Components Aren’t Really So Passive (Part 1): Capacitors 07/08/2013

Passive Components Aren’t Really So Passive (Part 2): Resistors 03/30/2015

Passive Components Aren’t Really So Passive (Part 3): Printed Circuit Boards 03/30/2015

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX44280AXT+	Single Chip Package	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
MAX44280AXT+T	Single Chip Package	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
MAX44280AYT+	LGA	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
MAX44280AYT+T	LGA	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Operational Amplifiers (Op Amps) 2
MAX44260	PRODUCTION	1.8V, 15MHz Low-Offset, Low-Power, Rail-to-Rail I/O Op Amps
MAX44261	PRODUCTION	1.8V, 15MHz Low-Offset, Low-Power, Rail-to-Rail I/O Op Amps

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

MAX44280

SPICE Model 1

MAX44280 SPICE Macro Model

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

Evaluation Kit for the MAX44280

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Features and Benefits

Accommodates Multiple Op-Amp Configurations
Component Pads Allow for Sallen-Key Filter
Rail-to-Rail Inputs/Output
5V/V Minimum Stable Gain (Noninverting)
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX44280 evaluation kit (EV kit) provides a proven design to evaluate the MAX44280 low-power, low-input-offset voltage, high-bandwidth operational amplifier (op amp) in a 6-pin LGA package. The EV kit circuit is preconfigured as a noninverting amplifier, but can easily be adapted to other topologies by changing a few components. Low-power, low-input-offset voltage, and rail-to-rail input/output stages make the device ideal for a variety of precision measurement applications. The EV kit comes with a MAX44280AYT+ installed.