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AD8668ARZ Arkusz danych(PDF) 1 Page - Analog Devices |
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AD8668ARZ Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 16 page 16 V, 4 MHz Rail-to-Rail Output Amplifiers AD8665/AD8666/AD8668 Rev. A 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 ©2006 Analog Devices, Inc. All rights reserved. FEATURES Offset voltage: 2.5 mV max Low input bias current: 1 pA max Single-supply operation: 5 V to 16 V Dual-supply operation: ±2.5 V to ±8 V Low noise: 8 nV/√Hz @ 10 kHz Wide bandwidth: 4 MHz Rail-to-rail output Unity-gain stable Lead-free packaging APPLICATIONS Sensor amplification Reference buffers Medical equipment Physiological measurements Signal filters and conditioning Consumer audio Photodiode amplification ADC driver Level shifting circuits GENERAL DESCRIPTION The AD866x family are single supply, rail-to-rail output amplifiers with low noise performance featuring an extended operating range with supply voltages up to 16 V. They also feature low input bias currents, wide signal bandwidth, and low input voltage and current noise. For lower offset voltage, choose the AD8661/AD8662/AD8664 family. The combination of low offsets, very low input bias currents, and wide supply range make these amplifiers useful in a wide variety of cost sensitive applications normally associated with much higher priced JFET amplifiers. Systems using high impedance sensors, such as photo diodes, benefit from the combination of low input bias current, low noise, and low offset and bandwidth. The wide operating voltage range matches high performance ADCs and DACs. Audio applications and medical monitoring equipment can take advantage of the high input impedance, low voltage and current noise, wide bandwidth, and the lack of popcorn noise found in many other low input bias current amplifiers. The AD866x family is specified over the extended industrial temperature range (−40°C to +125°C). PIN CONFIGURATIONS 1 2 3 5 4 –IN +IN V+ OUT AD8665 TOP VIEW (Not to Scale) V– Figure 1. AD8665, 5-Lead SOT-23 (RJ-5) NC 1 –IN 2 +IN 3 VEE 4 NC 8 VCC 7 OUT 6 NC 5 AD8665 TOP VIEW (Not to Scale) NC = NO CONNECT Figure 2. AD8665, 8-Lead SOIC_N (R-8) OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 AD8666 TOP VIEW (Not to Scale) Figure 3. AD8666, 8-Lead SOIC_N (R-8) OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 AD8666 TOP VIEW (Not to Scale) Figure 4. AD8666, 8-Lead MSOP (RM-8) 1 2 3 4 5 6 7 AD8668 IN A +IN A V+ OUT B –IN B +IN B OUT A 14 13 12 11 10 9 8 –IN D +IN D V– OUT C –IN C +IN C OUT D TOP VIEW (Not to Scale) Figure 5. AD8668, 14-Lead TSSOP (RU-14) OUT A –IN A +IN A V+ OUT D –IN D +IN D V– +INB +INC –IN B OUT B –IN C OUT C AD8648 TOP VIEW (Not to Scale) OUT A AD8668 TOP VIEW (Not to Scale) AD8648 TOP VIEW (Not to Scale) 6 1 2 3 4 5 7 14 13 12 11 10 9 8 AD8668 TOP VIEW (Not to Scale) Figure 6. AD8668, 14-Lead SOIC_N (R-14) |
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