AD547 Datasheet | Analog Devices

a Features Ultralow Drift: 1 ␮ V/؇ C (AD547L) Low Offset Voltage: 0.25 m V (AD547L) Low Input Bias Currents: 25 p A max Low Quiescent Current: 1.5 m A Low Noise: 2 ␮ V p-p High Open Loop Gain: 110 d B 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, Bi FET 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 Bi FET series of precision, monolithic FET-input op amps are fabricated with the most advanced Bi FET and laser trimming technologies. The AD542, AD544, AD547 series offers bias currents significantly lower than currently available Bi FET devices, 25 p A max, warmed up. In addition, the offset voltage is laser trimmed to less than 0.25 m V on the AD547L, which is achieved by utilizing Analog Devices’ exclusive laser wafer trimming (LWT) process. When bined with the AD547’s low offset drift (1 µV/°C), these Features offer the user performance superior to existing Bi FET op amps at low Bi FET pricing. The AD542 or AD547 is remended 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 source impedances will benefit from the device’s excellent bination of low offset voltage and drift, low bias current and low 1/f noise. High mon-mode rejection (80 d B, min on the “K” and “L” grades) and high open-loop gain, even under heavy loading, ensures better than “12-bit” linearity in high impedance buffer applications. The AD544 is remended for any op amp applications requiring excellent ac and dc performance at low cost. The 2 MHz bandwidth and low offset of the AD544 make it...