16 V, 4 MHz RR0 Amplifiers AD8665/AD8666/AD8668 FEATURES PIN CONFIGURATIONS Offset voltage: 2.5 mV max 1 5 OUT V+ Low input bias current: 1 pA max AD8665 TOP VIEW V 2 Single-supply operation: 5 V to 16 V (Not to Scale) Dual-supply operation: 2.5 V to 8 V +IN 3 4 IN Low noise: 8 nV/Hz 10 kHz Figure 1. AD8665, 5-Lead SOT-23 (RJ-5) Wide bandwidth: 4 MHz Rail-to-rail output NC 1 8 NC Unity-gain stable AD8665 IN 2 7 VCC Lead-free packaging +IN 3 6 OUT TOP VIEW AD8666/AD8668 qualified for automotive applications (Not to Scale) VEE 4 5 NC APPLICATIONS NC = NO CONNECT Figure 2. AD8665, 8-Lead SOIC N (R-8) Sensor amplification Reference buffers OUT A 1 8 V+ Medical equipment AD8666 IN A 2 7 OUT B Physiological measurements +IN A 3 6 IN B TOP VIEW Signal filters and conditioning (Not to Scale) V 4 5 +IN B Consumer audio Figure 3. AD8666, 8-Lead SOIC N (R-8) Photodiode amplification ADC driver OUT A 1 8 V+ Level shifting circuits IN A 2 7 OUT B AD8666 GENERAL DESCRIPTION +IN A 3 TOP VIEW 6 IN B (Not to Scale) 4 5 V +IN B The AD866x family is single supply, rail-to-rail output amplifiers with low noise performance featuring an extended Figure 4. AD8666, 8-Lead MSOP (RM-8) operating range with supply voltages up to 16 V. They also feature low input bias currents, wide signal bandwidth, and low 1 OUT A 14 OUT D input voltage and current noise. For lower offset voltage, choose 2 13 IN A IN D the AD8661/AD8662/AD8664 family. 3 12 +IN A AD8668 +IN D TOP VIEW V+ 4 11 V The combination of low offsets, very low input bias currents, (Not to Scale) +IN B 5 10 +IN C and wide supply range make these amplifiers useful in a wide 6 9 IN B IN C variety of cost sensitive applications normally associated with 7 8 OUT B OUT C much higher priced JFET amplifiers. Systems using high impedance sensors, such as photo diodes, benefit from the Figure 5. AD8668, 14-Lead TSSOP (RU-14) combination of low input bias current, low noise, and low offset and bandwidth. The wide operating voltage range matches high 1 14 OOUUTT AA OUT D performance ADCs and DACs. Audio applications and medical 2 13 IN A IN D 3 12 monitoring equipment can take advantage of the high input +IN A +IN D AAAADDDD8888646664668888 4 TTTTOOOOPPPP VVVVIIIIEEEEWWWW 11 V+ V impedance, low voltage and current noise, wide bandwidth, and ((((NNNNooootttt ttttoooo SSSScacacacalllleeee)))) 5 10 +IN B +IN C the lack of popcorn noise found in many other low input bias 9 IN B 6 IN C current amplifiers. 7 8 OUT B OUT C The AD866x family is specified over the extended industrial Figure 6. AD8668, 14-Lead SOIC N (R-14) temperature range (40C to +125C). See the Ordering Guide for automotive models. Rev. B 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com 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. Fax: 781.461.3113 20062011 Analog Devices, Inc. All rights reserved. 06195-039 06195-040 06195-004 06018-001 06195-002 06195-003AD8665/AD8666/AD8668 TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................5 Applications ....................................................................................... 1 Thermal Resistance .......................................................................5 General Description ......................................................................... 1 ESD Caution...................................................................................5 Pin Configurations ........................................................................... 1 Typical Performance Characteristics ..............................................6 Revision History ............................................................................... 2 Outline Dimensions ....................................................................... 12 Specifications ..................................................................................... 3 Ordering Guide .......................................................................... 14 REVISION HISTORY 7/11Rev. A to Rev. B Change to Features and General Description Sections ............... 1 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 13 Added Automotive Products Section........................................... 13 10/06Rev. 0 to Rev. A Added AD8665 ................................................................... Universal Added New Figure 1 and Figure 2, Renumbered Sequentially ................................................................ 1 Changes to Table 4 ............................................................................ 5 Changes to Figure 8, Figure 9, and Figure 11 ............................... 6 Change to Figure 40 ....................................................................... 11 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 13 4/06Rev 0: Initial Version Rev. B Page 2 of 16