单/双/四路，微功耗，单电源，轨至轨运算放大器 Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps
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
