Datasheet OP285 (Analog Devices)

Dual 9 MHz Precision Operational Amplifier Data Sheet OP285 FEATURES PIN CONNECTION Low offset voltage: 250 μV OUT A 1 8 V+ Low noise: 6 nV/√Hz –IN A 2 OP285 7 OUT B Low distortion: 0.0006% +IN A 3 6 –IN B (Not to Scale) High slew rate: 22 V/μs V– 4 5 +IN B Wide bandwidth: 9 MHz
8-Lead Narrow Body SOIC
Low supply current: 5 mA Low offset current: 2 nA Unity-gain stable 8-lead SOIC_N package APPLICATIONS High performance audio Active filters Fast amplifiers Integrators GENERAL DESCRIPTION
The OP285 is a precision high-speed amplifier featuring the The combination of low noise, speed and accuracy can be used Butler Amplifier front-end. This new front-end design to build high speed instrumentation systems. Circuits such as combines the accuracy and low noise performance of bipolar instrumentation amplifiers, ramp generators, bi-quad filters and transistors with the speed of JFETs. This yields an amplifier dc-coupled audio systems are all practical with the OP285. For with high slew rates, low offset and good noise performance at applications that require long term stability, the OP285 has a low supply currents. Bias currents are also low compared to guaranteed maximum long term drift specification. bipolar designs. The OP285 is specified over the XIND—extended industrial— The OP285 offers the slew rate and low power of a JFET (−40°C to +85°C) temperature range. The OP285 is available in amplifier combined with the precision, low noise and low drift an 8-lead SOIC_N surface mount package. of a bipolar amplifier. Input offset voltage is laser-trimmed and guaranteed less than 250 μV. This makes the OP285 useful in dc-coupled or summing applications without the need for special selections or the added noise of additional offset adjustment circuitry. Slew rates of 22 V/μs and a bandwidth of 9 MHz make the OP285 one of the most accurate medium speed amplifiers available.
Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©1992–2018 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com