General Description

The dual MAX492, quad MAX494, and single MAX495 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 150μA supply current. Even with this low current, the op amps are capable of driving a 1k? load, and the input referred? voltage noise is only 25nV/√Hz. In addition, these op amps can drive loads in excess of 1nF.

特性 Features

? Low-Voltage Single-Supply Operation (+2.7V to +6V)

? Rail-to-Rail Input Common-Mode Voltage Range

? Rail-to-Rail Output Swing

? 500kHz Gain-Bandwidth Product

? Unity-Gain Stable

? 150μA Max Quiescent Current per Op Amp

? No Phase Reversal for Overdriven Inputs

? 200μV Offset Voltage

? High Voltage Gain (108dB)

? High CMRR (90dB) and PSRR (110dB)

? Drives 1k? Load

? Drives Large Capacitive Loads

? MAX495 Available in μMAX Package—8-Pin SO

Applications

Portable Equipment

Battery-Powered Instruments

Data Acquisition

Signal Conditioning

Low-Voltage Applications

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