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OP400 Datasheet(PDF) 1 Page - Analog Devices |
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OP400 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page Quad Low Offset, Low Power Operational Amplifier Data Sheet OP400 Rev. H Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Low input offset voltage: 150 µV maximum Low offset voltage drift over –55°C to +125°C: 1.2 μV/°C maximum Low supply current (per amplifier): 725 µA maximum High open-loop gain: 5000 V/mV minimum Input bias current: 3 nA maximum Low noise voltage density: 11 nV/√Hz at 1 kHz Stable with large capacitive loads: 10 nF typical Available in die form FUNCTIONAL BLOCK DIAGRAMS OUT A 1 –IN A 2 +IN A 3 V+ 4 OUT D –IN D +IN D V– 14 13 12 11 +IN B 5 –IN B 6 OUT B 7 +IN C –IN C OUT C 10 9 8 OP400 + – + – + – + – OUTA 1 –IN A 2 +IN A 3 V+ 4 OUT D –IN D +IN D V– 16 15 14 13 +IN B 5 –IN B 6 OUT B 7 +IN C –IN C OUT C 12 11 10 NC 8 NC 9 OP400 NC = NO CONNECT + – + – + – + – Figure 1. 14-Pin Ceramic DIP (Y-Suffix) and 14-Pin Plastic DIP (P-Suffix) Figure 2. 16-Pin SOIC (S-Suffix) GENERAL DESCRIPTION The OP400 is the first monolithic quad operational amplifier that features OP77-type performance. Precision performance is not sacrificed with the OP400 to obtain the space and cost savings offered by quad amplifiers. The OP400 features an extremely low input offset voltage of less than 150 µV with a drift of less than 1.2 µV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP400 is more than 5 million into a 10 kΩ load, input bias current is less than 3 nA, CMR is more than 120 dB, and PSRR is less than 1.8 µV/V. On-chip Zener zap trimming is used to achieve the low input offset voltage of the OP400 and eliminates the need for offset nulling. The OP400 conforms to the industry- standard quad pinout, which does not have null terminals. The OP400 features low power consumption, drawing less than 725 µA per amplifier. The total current drawn by this quad amplifier is less than that of a single OP07, yet the OP400 offers significant improvements over this industry-standard op amp. Voltage noise density of the OP400 is a low 11 nV/√Hz at 10 Hz, half that of most competitive devices. The OP400 is an ideal choice for applications requiring multiple precision operational amplifiers and where low power consumption is critical. VOLTAGE LIMITING NETWORK +IN –IN V– OUT V+ BIAS Figure 3. Simplified Schematic (One of Four Amplifiers Is Shown) |
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