AD8639ACPZ-REEL7 Datasheet PDF - ADI

●The AD8639ACPZ-REEL7 is an auto-zero dual Operational Amplifier with rail-to-rail output swing. This amplifier has very low offset, drift and bias current. Operation is fully specified from ±2.5 to ±8V dual supply. The AD8639 provides benefits previously found only in expensive zero-drift or chopper-stabilized amplifier. No external capacitors are required. In addition, the AD869 greatly reduce the digital switching noise found in most chopper-stabilized amplifiers. With a typical offset voltage of only 3µV, drift of 0.01µV/°C and noise of 1.2µVp-p (0.1 to 10Hz), the AD8639 is suited for applications in which error sources cannot be tolerated. Position and pressure sensors and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature ranges. Many systems can take advantage of the rail-to-rail output swing provided by the AD8639 to maximize signal-to-noise ratio (SNR).

● High accuracy and low noise

● 9µV Maximum low offset voltage

● 0.04µV/°C Maximum offset drift

● 136dB Typical high gain

● 133dB Typical high CMRR

● 143dB Typical high PSRR

● 40pA Maximum very low input bias current

● 1.3mA Maximum low supply current