MAX4494 Datasheet

• 770µA Supply Current per Amplifier
• Operates from Dual ±2.25V to ±5.5V Supplies
• 5MHz Gain-Bandwidth Product
• Rail-to-Rail Output Swing
• Input Voltage Range Extends 200mV Below the Negative Rail
• 110dB Open-Loop Gain (R_L = 100kΩ)
• Low THD+N of 0.002% (f = 1kHz)
• No Phase Reversal for Overdriven Inputs
• Unity-Gain Stable
• Available in Space-Saving Packages
  • 8-Pin SOT23 (MAX4494)

• Battery-Powered Systems
• DAC Output Amplifiers
• Industrial Control Systems
• Signal Conditioning
• Voltage Reference Generators

The MAX4494 dual general-purpose operational amplifiers are designed for use in systems powered with dual supplies from ±2.25V to ±5.5V or with a single supply of +4.5V to +11V. These op amps provide a unity-gain bandwidth of 5MHz with only 770µA of quiescent current per amplifier. The wide input common-mode range extends from 200mV beyond the negative rail to within 1.5V of the positive supply rail while the output swings within 10mV (R_L = 100kΩ) of either rail.

These amplifiers have excellent (110dB) open-loop gain with very low THD+N of 0.002% (f = 1kHz). The dual MAX4494 is available in the space-saving 8-pin SOT23. The MAX4494 is rated at the automotive temperature range of -40°C to +125°C.