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PRODUCT DESCRIPTION

The AD642 is a pair of matched high speed monolithic BiFET operational amplifier fabricated with the most advanced bipolar, JFET and laser trimming technologies. The AD642 offers matched bias currents that are significantly lower than currently available monolithic dual FET input operational amplifiers: 35 pA max matched to 25 pA for the AD642K and L; 75 pA max, matched to 35 pA for the AD642J and S. In addition, the offset voltage is laser trimmed to less than 0.5 mV and matched to 0.25 mV for the AD642L, 1.0 mV and matched to 0.5 mV for the AD642K, utilizing Analog’s laser-wafer trimming (LWT) process.

FEATURES

Matched Offset Voltage

Matched Offset Voltage Over Temperature

Matched Bias Current

Crosstalk: –124 dB @ 1 kHz

Low Bias Current: 35 pA max Warmed Up

Low Offset Voltage: 500 mV max

Low Input Voltage Noise: 2 mV p-p

High Open Loop Gain

Low Quiescent Current: 2.8 mA max

Low Total Harmonic Distortion

Standard Dual Amplifier Pin Out

Available in Hermetic Metal Can Package and Chip Form

MIL-STD-883B Processing Available

Single Version Available: AD542