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AD8202 Datasheet(PDF) 1 Page - Analog Devices |
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AD8202 Datasheet(HTML) 1 Page - Analog Devices |
1 / 4 page Precision, Dual-Channel Difference Amplifier Preliminary Technical Data AD8270 Rev. PrA Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 www.analog.com Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved. FEATURES With no external resistors: Difference Amplifier: Gains: 0.5, 1, 2 Inverting Amplifier: Gains: 0.5, 1, 2 Noninverting Amplifier: Gains: 1.5, 2, 3 Set reference voltage at 0, +Vs/2, or +Vs Excellent AC Specifications 10 MHz bandwidth 30V/μs slew rate Low Distortion -90 dBc @ 100 kHz, 20Vpp, 600 Ω load High Accuracy DC Performance 0.05% gain accuracy 10 ppm gain drift 400 uV offset voltage 80 dB CMRR Two channels in small 4 mm × 4 mm LFCSP Supply current: 2.5 mA per channel Supply range: ±2.5 V to ±18 V APPLICATIONS Instrumentation Amplifier Building Block Level Translator Automatic Test Equipment High Performance Audio Sin/Cos Encoders GENERAL DESCRIPTION The AD8270 is a low distortion, dual-channel amplifier with internal gain setting resistors. With no external components, it can be configured as a high performance difference amplifier (G=0.5, 1, or 2), inverting amplifier (G=0.5, 1, or 2) or non- inverting amplifier (G=1.5, 2, or 3). FUNCTIONAL BLOCK DIAGRAM AD8270 1 2 3 4 12 11 10 9 56 7 8 13 14 15 16 –IN1 –IN1 +IN1 +IN1 –IN2 –IN2 +IN2 +IN2 10k 10k 10k 10k 10k 10k 10k 10k 10k 10k 20k 20k 20k 20k Figure 1. AD8270 Dual Difference Amplifier Table 1. Difference Amplifiers by Category Low Distortion High Voltage Single Supply Uni-directional Single Supply Bi-directional AD8270 AD8273 AMP03 AD628 AD629 AD8212 AD8202 AD8203 AD8205 AD8206 AD8210 The AD8270 is the first dual difference amplifier in the small 4 mm × 4mm LFCSP. It requires the same board area as a typical single difference amplifier. The smaller package allows a 2X increase in channel density and a lower cost per channel, all with no compromise in performance. The AD8270 operates on both single and dual supplies and only requires 2.5 mA maximum supply current for both amplifiers. It is specified over the industrial temperature range of −40°C to +85°C and is fully RoHS compliant. |
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