AD547

a FEATURES Ultralow Drift: 1 ␮ V/؇ C (AD547L) Low Offset Voltage: 0.25 mV (AD547L) Low Input Bias Currents: 25 pA max Low Quiescent Current: 1.5 mA Low Noise: 2 ␮ V p-p High Open Loop Gain: 110 dB High Slew Rate: 13 V/␮s Fast Settling to ؎0.01%: 3 ␮ s Low Total Harmonic Distortion: 0.0025% Available in Hermetic Metal Can and Die Form MIL-STD-883B Versions Available Dual Versions Available: AD642, AD644, AD647 High Performance, BiFET Operational Amplifiers AD542/AD544/AD547 CONNECTION DIAGRAM TAB 8 NULL 1 2 3 4 7 6 5 +V INVERTING INPUT NONINVERTING INPUT OUTPUT NULL –V NOTE: PIN 4 CONNECTED TO CASE PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS The BiFET series of precision, monolithic FET-input op amps are fabricated with the most advanced BiFET and laser trimming technologies. The AD542, AD544, AD547 series offers bias currents significantly lower than currently available BiFET devices, 25 pA max, warmed up. In addition, the offset voltage is laser trimmed to less than 0.25 mV on the AD547L, which is achieved by utilizing Analog Devices’ exclusive laser wafer trimming (LWT) process. When combined with the AD547’s low offset drift (1 µV/°C), these features offer the user performance superior to existing BiFET op amps at low BiFET pricing. The AD542 or AD547 is recommended for any operational amplifier application requiring excellent dc performance at low to moderate cost. Precision instrument front ends requiring accurate amplification of millivolt level signals from megohm s...