Low Power, Precision, Auto-Zero Op Amps Data Sheet AD8538/AD8539 FEATURES PIN CONFIGURATIONS Low offset voltage: 13 V maximum OUT 1 5 V+ Input offset drift: 0.03 V/C AD8538 V 2 Single-supply operation: 2.7 V to 5.5 V TOP VIEW (Not to Scale) High gain, CMRR, and PSRR +IN 3 4 IN Low input bias current: 25 pA Low supply current: 180 A Figure 1. 5-Lead TSOT-23 (UJ-5) Qualified for automotive applications NC 1 8 NC APPLICATIONS AD8538 IN 2 7 V+ +IN 3 6 OUT Mobile communications TOP VIEW (Not to Scale) 4 5 V NC Portable instrumentation Battery-powered devices NC = NO CONNECT Sensor interfaces Figure 2. 8-Lead SOIC N (R-8) Temperature measurement Electronic scales OUT A 1 8 V+ AD8539 IN A 2 7 OUT B GENERAL DESCRIPTION +IN A 3 6 IN B TOP VIEW (Not to Scale) The AD8538/AD8539 are very high precision amplifiers featuring V 4 5 +IN B extremely low offset voltage, low input bias current, and low power Figure 3. 8-Lead SOIC N (R-8) consumption. The supply current is less than 215 A maximum per amplifier at 5.0 V. Operation is fully specified from 2.7 V to 5.0 V single supply (1.35 V to 2.5 V dual supply). OUT A 1 8 V+ AD8539 IN A 2 7 OUT B The AD8538/AD8539 operate at very low power making these TOP VIEW +IN A 3 6 IN B amplifiers ideal for battery-powered devices and portable (Not to Scale) V 4 5 +IN B equipment. Figure 4. 8-Lead MSOP (RM-8) The AD8538/AD8539 are specified over the extended industrial temperature range (40C to +125C). The AD8538 amplifier is available in 5-lead TSOT-23, and 8-lead, narrow body SOIC packages, and the AD8539 amplifier is available in 8-lead, narrow body SOIC and 8-lead MSOP. See the Ordering Guide for the automotive part. Rev. B Document Feedback 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. 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Technical Support www.analog.com 06741-001 06741-002 06741-033 06741-034AD8538/AD8539 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................7 Applications ....................................................................................... 1 Thermal Resistance .......................................................................7 General Description ......................................................................... 1 ESD Caution...................................................................................7 Pin Configuration Diagrams ........................................................... 1 Typical Performance Characteristics ..............................................8 Revision History ............................................................................... 2 AD8538 Characteristics ................................................................8 Specifications ..................................................................................... 3 AD8539 Characteristics ............................................................. 14 AD8538 Electrical Specifications ............................................... 3 Outline Dimensions ....................................................................... 20 AD8539 Electrical Specifications ............................................... 5 Ordering Guide .......................................................................... 21 REVISION HISTORY 2/13Rev. A to Rev. B Added Table 4, Renumbered Tables Sequentially ......................... 6 Changes to Thermal Resistance Section ........................................ 7 Changes to Features Section and General Description Section ... 1 Added Figure 32 and Figure 33 .................................................... 13 Updated Outline Dimensions ....................................................... 20 Added AD8539 Characteristics Section, Renumbered Figures Changes to Ordering Guide .......................................................... 21 Sequentially ..................................................................................... 14 Added Automotive Products Section........................................... 21 Updated Outline Dimensions ....................................................... 20 5/07Rev. 0 to Rev. A Changes to Ordering Guide .......................................................... 21 Added AD8539 ................................................................... Universal 10/05Revision 0: Initial Version Changes to Specifications Section .................................................. 3 Added Table 3, Renumbered Tables Sequentially ........................ 5 Rev. B Page 2 of 24