MAX4094:Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps

Low Power RRI/O Op Amp Family Drives 2000pF Capacitive Loads

The single MAX4091, dual MAX4092, and quad MAX4094 operational amplifiers combine excellent DC accuracy with rail-to-rail operation at the input and output. Since the common-mode voltage extends from VCC to VEE, the devices can operate from either a single supply (2.7V to 6V) or split supplies (±1.35V to ±3V). Each op amp requires less than 130µA of supply current. Even with this low current, the op amps are capable of driving a 1kΩ load, and the input-referred voltage noise is only 12nV/√Hz. In addition, these op amps can drive loads in excess of 2000pF. The precision performance of the MAX4091/MAX4092/MAX4094 combined with their wide input and output dynamic range, low-voltage, single-supply operation, and very low supply current, make them an ideal choice for battery-operated equipment, industrial, and data acquisition and control applications. In addition, the MAX4091 is available in space-saving 5-pin SOT23, 8-pin µMAX®, and 8-pin SO packages. The MAX4092 is available in 8-pin µMAX and SO packages, and the MAX4094 is available in 14-pin TSSOP and 14-pin SO packages.

Key Features
  • Low-Voltage, Single-Supply Operation (2.7V to 6V)
  • Beyond-the-Rails™ Inputs
  • No Phase Reversal for Overdriven Inputs
  • 30µV Offset Voltage
  • Rail-to-Rail Output Swing with 1kΩ Load
  • Unity-Gain Stable with 2000pF Load
  • 165µA (max) Quiescent Current Per Op Amp
  • 500kHz Gain-Bandwidth Product
  • High Voltage Gain (115dB)
  • High Common-Mode Rejection Ratio (90dB) and Power-Supply Rejection Ratio (100dB)
  • Temperature Range (-40°C to +125°C)
MAX4091, MAX4092, MAX4094: Pin Configurations/Functional Diagrams
MAX4091, MAX4092, MAX4094: Pin Configurations/Functional Diagrams
  • Battery-Powered Instruments
  • Cellular Handsets
  • Data Acquisition and Control
  • Digital Cameras (DIGICAMs)
  • Glucose Meters
  • GPS Solutions
  • IP Camera
  • Low-Voltage Signal Conditioning
  • MP3 and Portable Media Players
  • Portable Equipment
titleDownload file
MAX4091-MAX4094 Data SheetMAX4091-MAX4094.pdf
Part NumberAmps.Rail to RailVSUPPLY (Total)
ICC per Amp.
Unity Gain BW
Slew Rate
minmaxtypmaxtyptypmaxtyptyp<See Notes
$1.20 @1k
$0.94 @1k
$1.70 @1k
Quality and Environmental Data
Related Products
  • MAX492:Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps
  • MAX494:Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4094ASDNo Longer AvailableMAX4094ASD+SOIC(N),;14 pin;54.2 mm²-40°C to +125°CNo
MAX4094ASD+ActiveSOIC(N),;14 pin;54.2 mm²-40°C to +125°CLead Free
MAX4094ASD+TActiveSOIC(N),;14 pin;54.2 mm²-40°C to +125°CLead Free
MAX4094ASD-TNo Longer AvailableMAX4094ASD+TN.SO;14 pin-40°C to +125°CSee data sheet
MAX4094AUDNo Longer AvailableMAX4094AUD+TSSOP,;14 pin;33.4 mm²-40°C to +125°CNo
MAX4094AUD+ActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX4094AUD+TActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX4094AUD-TNo Longer AvailableMAX4094AUD+TTSSOP;14 pin-40°C to +125°CSee data sheet
MAX4094C/DNo Longer AvailableSee data sheet
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