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AD8655ARZ-REEL Datasheet(PDF) 1 Page - Analog Devices |
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AD8655ARZ-REEL Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page Low Noise, Precision CMOS Amplifier AD8655/AD8656 Rev. A 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 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. 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 © 2005 Analog Devices, Inc. All rights reserved. FEATURES PIN CONFIGURATIONS Low noise: 2.7 nV/ √Hz @ f = 10 kHz NC 1 –IN 2 +IN 3 V– 4 NC 8 V+ 7 OUT 6 NC 5 AD8655 TOP VIEW (Not to Scale) NC = NO CONNECT OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 AD8656 TOP VIEW (Not to Scale) Low offset voltage: 250 μV max over VCM Offset voltage drift: 0.4 μV/°C typ and 2.3 μV/°C max Bandwidth: 28 MHz Rail-to-rail input/output Unity gain stable Figure 1. AD8655 8-Lead MSOP (RM-8) Figure 2. AD8656 8-Lead MSOP (RM-8) 2.7 V to 5.5 V operation −40°C to +125°C operation APPLICATIONS OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 AD8656 TOP VIEW (Not to Scale) NC 1 –IN 2 +IN 3 V– 4 NC 8 V+ 7 OUT 6 NC 5 NC = NO CONNECT AD8655 TOP VIEW (Not to Scale) ADC and DAC buffers Audio Industrial controls Precision filters Digital scales Figure 3. AD8655 8-Lead SOIC (R-8) Figure 4. AD8656 8-Lead SOIC (R-8) Strain gauges PLL filters GENERAL DESCRIPTION The AD8655/AD8656 are the industry’s lowest noise, precision CMOS amplifiers. They leverage the Analog Devices DigiTrim® technology to achieve high dc accuracy. The high precision performance of the AD8655/AD8656 improves the resolution and dynamic range in low voltage applications. Audio applications, such as microphone pre-amps and audio mixing consoles, benefit from the low noise, low distortion, and high output current capability of the AD8655/ AD8656 to reduce system level noise performance and maintain audio fidelity. The high precision and rail-to-rail input and output of the AD8655/AD8656 benefit data acquisition, process controls, and PLL filter applications. The AD8655/AD8656 provide low noise (2.7 nV/√Hz @ 10 kHz), low THD + N (0.0007%), and high precision performance (250 μV max over VCM) to low voltage applications. The ability to swing rail-to-rail at the input and output enables designers to buffer analog-to-digital converters (ADCs) and other wide dynamic range devices in single-supply systems. The AD8655/AD8656 are fully specified over the −40°C to +125°C temperature range. The AD8655/AD8656 are available in Pb-free, 8-lead MSOP and SOIC packages. |
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