Features and Benefits
- Ultra-Low Voltage Operation—Guaranteed Down to 1.8V
- 100µA Supply Current per Amplifier
- 500kHz Gain-Bandwidth Product
- 120dB Open-Loop Voltage Gain (RL = 100kΩ)
- 0.017% Total Harmonic Distortion Plus Noise (THD + N) at 1kHz
- Rail-to-Rail Input Common-Mode Range
- Rail-to-Rail Output Drives 2kΩ Load
- No Phase Reversal for Overdriven Inputs
- Unity-Gain Stable for Capacitive Loads up to 100pF
- 200µV Input Offset Voltage (MAX4292/MAX4294)
- Single in Small 5-Pin SC70
- Available in Ultra-Small Packages:
- 5-Pin SC70 (MAX4291)
- 8-Bump UCSP (MAX4292)
The MAX4291/MAX4292/MAX4294 family of micropower operational amplifiers operates from a 1.8V to 5.5V single supply or ±0.9V to ±2.75V dual supplies and has Rail-to-Rail input/output capabilities. These amplifiers provide a 500kHz gain-bandwidth product and 120dB open-loop voltage gain while using only 100µA of supply current per amplifier. The combination of low input offset voltage (±200µV) and high open-loop gain makes them ideal for low-power/low-voltage, high-precision portable applications.
The MAX4291/MAX4292/MAX4294 have an input common-mode range that extends to each supply rail, and their outputs swing to within 46mV of the rails with a 2kΩ load. Although the minimum operating voltage is specified at 1.8V, these devices typically operate down to 1.5V. The combination of ultra-low-voltage operation, rail-to-rail inputs/output, and low-power consumption makes these devices ideal for any portable/two-cell battery-powered system.
The single MAX4291 is offered in an ultra-small 5-pin SC70 package. The dual MAX4292 is offered in a space-saving 8-bump, 1.5mm x 1.5mm footprint, ultra chip-scale package (UCSP™).
- 2-Cell Battery-Operated Systems
- Automotive Sensors
- Base Station/Wireless Infrastructure
- Battery-Powered Applications
- Cell Phones
- Computers: Desktops, Workstations, and Servers
- Computers: Motherboards
- Computers: Notebook
- Digital Scales/Strain Gauges
- GPS Solutions
- MP3 Docking Stations: Mid Level
- Portable Electronic Equipment
- Programmable Logic Controllers (PLCs)
- Sensor Amplifiers
- Set-Top Boxes
- Strain Gauges
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Tools & Simulations
MAX4291 Companion Parts
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 Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|MAX4291EUK+||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX4291EUK+T||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX4291EXK+||Material Declaration||Reliability Data||5-SC70-N/A|
|MAX4291EXK+T||Material Declaration||Reliability Data||5-SC70-N/A|
|Wafer Fabrication Data||MAX4291 Reliability Data|
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