10 MHz, 14.5 nV/Hz, Rail-to-Rail I/O, Zero Input Crossover Distortion Amplifier Data Sheet ADA4500-2 FEATURES PIN CONFIGURATION Power supply rejection ratio (PSRR): 98 dB minimum OUT A 1 8 V+ Common-mode rejection ratio (CMRR): 95 dB minimum IN A 2 7 OUT B ADA4500-2 Offset voltage: 120 V maximum TOP VIEW +IN A 3 6 IN B (Not to Scale) Single-supply operation: 2.7 V to 5.5 V V 4 5 +IN B Dual-supply operation: 1.35 V to 2.75 V Wide bandwidth: 10 MHz Figure 1. 8-Lead MSOP Pin Configuration Rail-to-rail input and output For more information on the pin connections, see the Pin Low noise Configurations and Function Descriptions section 2 V p-p from 0.1 Hz to 10 Hz 100 14.5 nV/Hz at 1 kHz ADA4500-2 = 5.0V V 80 SY Very low input bias current: 2 pA maximum 60 APPLICATIONS 40 Pressure and position sensors 20 Remote security 0 Medical monitors Process controls 20 Hazard detectors 40 Photodiode applications 60 80 100 051 2 3 4 V (V) CM Figure 2. The ADA4500-2 Eliminates Crossover Distortion Across its Full Supply Range GENERAL DESCRIPTION The ADA4500-2 is a dual 10 MHz, 14.5 nV/Hz, low power This combination of features makes the ADA4500-2 an ideal choice amplifier featuring rail-to-rail input and output swings while for precision sensor applications because it minimizes errors due to operating from a 2.7 V to 5.5 V single power supply. Compatible power supply variation and maintains high CMRR over the full with industry-standard nominal voltages of +3.0 V, +3.3 V, input voltage range. The ADA4500-2 is also an excellent amplifier +5.0 V, and 2.5 V. for driving analog-to-digital converters (ADCs) because the output does not distort with the common-mode voltage, which enables Employing a novel zero-crossover distortion circuit topology, this the ADC to use its full input voltage range, maximizing the amplifier offers high linearity over the full, rail-to-rail input dynamic range of the conversion subsystem. common-mode range, with excellent power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR) performance Many applications such as sensors, handheld instrumentation, without the crossover distortion seen with the traditional precision signal conditioning, and patient monitors can benefit complementary rail-to-rail input stage. The resulting op amp from the features of the ADA4500-2. also has excellent precision, wide bandwidth, and very low The ADA4500-2 is specified for the extended industrial temperature bias current. range (40C to +125C) and available in the standard 8-lead MSOP and 8-lead LFCSP packages. 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. 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 2012-2017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. V (V) OS 10617-001 10617-004ADA4500-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 19 Applications ....................................................................................... 1 Rail-to-Rail Output .................................................................... 19 Pin Configuration ............................................................................. 1 Rail-to-Rail Input (RRI) ............................................................ 19 General Description ......................................................................... 1 Zero Cross-Over Distortion ..................................................... 19 Revision History ............................................................................... 2 Overload Recovery ..................................................................... 20 Specif icat ions ..................................................................................... 3 Power-On Current Profile ......................................................... 21 V = 2.7 V Electrical Characteristics ........................................ 3 Applications Information .............................................................. 22 SY V = 5.0 V Electrical Characteristics ........................................ 5 Resistance and Capacitance Sensor Circuit ............................ 22 SY Absolute Maximum Ratings ............................................................ 7 Adaptive Single-Ended-to-Differential Signal Converter ..... 22 Thermal Resistance ...................................................................... 7 Outline Dimensions ....................................................................... 24 ESD Caution .................................................................................. 7 Ordering Guide .......................................................................... 24 Pin Configurations and Function Descriptions ........................... 8 Typical Performance Characteristics ............................................. 9 REVISION HISTORY 4/2017Rev. A to Rev. B Changed CP-8-12 to CP-8-11 ...................................... Throughout Changes to Outline Dimensions ................................................... 24 Changes to Ordering Guide .......................................................... 24 10/2012Rev. 0 to Rev. A Changes to Ordering Guide .......................................................... 24 10/2012Revision 0: Initial Version Rev. B Page 2 of 24