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MAX4091, MAX4092, MAX4094
Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps

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


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 528kB)
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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   Applications/Uses
  • 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)

 

Key Specifications:  Operational Amplifiers
Part Number Amps. Rail to Rail AVCL VSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(µA)
ICC per Amp.
(µA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
en
(nV/√Hz)
in
(pA/√Hz)
Low Pwr. Shutdn Package/Pins Price
min min max typ max max typ typ max typ typ See Notes
MAX4091  1 Input/Output 1 2.7 6 115 165 1400 90 100 180 0.5 0.2 12 1.5 No
µMAX/8
SOIC(N)/8
SOT/5
$0.49 @1k
MAX4092  2
µMAX/8
SOIC(N)/8
$0.68 @1k
MAX4094  4
SOIC(N)/14
TSSOP/14
$0.94 @1k
See All Operational Amplifiers (145)

Diagram
MAX4091, MAX4092, MAX4094: Pin Configurations/Functional Diagrams
Pin Configurations/Functional Diagrams

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    Document Ref.: 19-2272; Rev 0; 2002-02-20
    This page last modified: 2009-07-15


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