General Description
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.

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)

Applications
  Portable Equipment
  Battery-Powered Instruments
  Data Acquisition and Control
  Low-Voltage Signal Conditioning