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General Description

The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer Rail-to-ail?outputs and single supply operation down to 2.4V. They draw only 400μA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002 THD), as well as low input voltage noise density (7.9nV/√Hz) and low input current noise density (0.5fA/√Hz). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise.

Features

?Low Input Voltage Noise Density: 7.9nV/√Hz

?Low Input Current Noise Density: 0.5fA/√Hz

?Low Distortion: 0.0002 THD (1k?load)

?400μA Quiescent Supply Current per Amplifier

?Single-Supply Operation from +2.4V to +5.5V

?Input Common-Mode Voltage Range Includes Ground

?Outputs Swing within 8mV of Rails with a 10k?Load

?3MHz GBW Product, Unity-Gain Stable (MAX4250–MAX4254)

22MHz GBW Product, Stable with AV≥10V/V

(MAX4249/MAX4255/MAX4256/MAX4257)

?Excellent DC Characteristics:

VOS= 70μV

IBIAS= 1pA

Large-Signal Voltage Gain = 116dB

?Low-Power Shutdown Mode:

Reduces Supply Current to 0.5μA

Places Outputs in a High-Impedance State

?400pF Capacitive-Load Handling Capability

?Available in Space-Saving SOT23 and μMAX Packages