OP27GP Datasheet | Analog Devices

FEATURES Low Noise: 80 n V p-p (0.1 Hz to 10 Hz), 3 n V/√Hz Low Drift: 0.2 ␮ V/؇ C High Speed: 2.8 V/␮ s Slew Rate, 8 MHz Gain Bandwidth Low VOS: 10 ␮ V Excellent CMRR: 126 d B at V CM of ± 11 V High Open-Loop Gain: 1.8 Million Fits 725, OP07, 5534A Sockets Available in Die Form GENERAL DESCRIPTION Low-Noise, Precision Operational Amplifier OP27 PIN CONNECTIONS TO-99 (J-Suffix) BAL BAL 1 - IN 2 +IN 3 V+ OUT NC OP27 The OP27 precision operational amplifier bines the low offset and drift of the OP07 with both high speed and low noise. Offsets down to 25 µV and drift of 0.6 µV/° C maximum make the OP27 ideal for precision instrumentation applications. Exceptionally low noise, en = 3.5 n V/√Hz, at 10 Hz, a low 1/f noise corner frequency of 2.7 Hz, and high gain (1.8 million), allow accurate high-gain amplification of low-level signals. A gain-bandwidth product of 8 MHz and a 2.8 V/µsec slew rate provides excellent dynamic accuracy in high-speed, dataacquisition systems. A low input bias current of ± 10 n A is achieved by use of a bias-current-cancellation circuit. Over the military temperature range, this circuit typically holds IB and IOS to ± 20 n A and 15 n A, respectively. The output stage has good load driving capability. A guaranteed swing of ± 10 V into 600 Ω and low output distortion make the OP27 an excellent choice for professional audio applications. (Continued on page 7) 4V- (CASE) NC = NO CONNECT 8-Pin Hermetic DIP (Z-Suffix) Epoxy Mini-DIP (P-Suffix) 8-Pin SO (S-Suffix) VOS TRIM 1 - IN 2 +IN 3 V- 4 8 7 6 5 OP27 VOS TRIM V+ OUT NC NC = NO CONNECT V+ R3 Q6 R1- 1 8 R4 R2- C2 Q22 Q21 R23 Q23 R24 Q24 R9 Q20 Q1A NONINVERTING INPUT (+) Q3 INVERTING INPUT (- ) - R1 AND R2 ARE PERMANENTLY ADJUSTED AT WAFER TEST FOR MINIMUM OFFSET VOLTAGE. V- Q11 Q12 Q27 Q28 Q26 Q45 Q1B Q2B Q2A R5 C3 R12 C4 Q19 OUTPUT C1 Q46 VOS ADJ. Figure 1. Simplified Schematic REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is...