MAX4292:Ultra-Small, +1.8V, µPower, Rail-to-Rail I/O Op Amps

1.8V Op Amps Deliver 120dB Avol and Drive 2-kilohm loads with 0.017% THD+N

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™).

Key Features
  • 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)
MAX4291, MAX4292, MAX4294: Pin Configurations
MAX4291, MAX4292, MAX4294: Pin Configurations
  • 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
titleDownload file
MAX4291-MAX4294 Data SheetMAX4291-MAX4294.pdf
Part NumberAmps.Rail to RailVSUPPLY (Total)
ICC per Amp.
Unity Gain BW
Slew Rate
minmaxtypmaxtyptypmaxtyptyp<See Notes
$0.67 @1k
$1.53 @1k
$2.20 @1k
Quality and Environmental Data
Related Products
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  • MAX4040:Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op Amps
  • MAX4041:Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op Amps
  • MAX4163:SOT23, Micropower, Single-Supply, Rail-to-Rail I/O Op Amps
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Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4292EBL+ActiveUCSP,;9 pin;2.5 mm²0°C to +70°CLead Free
MAX4292EBL+TActiveUCSP,;9 pin;2.5 mm²0°C to +70°CLead Free
MAX4292EBL-TNo Longer AvailableMAX4292EBL+TUCSP,;9 pin;2.5 mm²0°C to +70°CNo
MAX4292ESANo Longer AvailableMAX4292ESA+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX4292ESA+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX4292ESA+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX4292ESA-TNo Longer AvailableMAX4292ESA+TN.SO;8 pin-40°C to +85°CSee data sheet
MAX4292EUANo Longer AvailableMAX4292EUA+µMAX,;8 pin;15.6 mm²-40°C to +85°CNo
MAX4292EUA+ActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
MAX4292EUA+TActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4292EUA-TNo Longer AvailableMAX4292EUA+TµMAX,;8 pin;15.6 mm²-40°C to +85°CNo
MAX4292EUBNo Longer Available-40°C to +85°CSee data sheet
MAX4291-MAX4294.pdf MAX4294
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MAX4292.pdf MAX4292
MAX4291-MAX4294.pdf MAX4294