Micropower, High Accuracy Voltage References Data Sheet ADR3525/ADR3530/ADR3533/ADR3540/ADR3550 FEATURES PIN CONFIGURATION ADR3525/ Maximum temperature coefficient: 5 ppm/C (B grade) ADR3530/ Low long-term drift (LTD): 30 ppm (initial 1 khr typical) ADR3533/ ADR3540/ Initial output voltage error: 0.1% (maximum) ADR3550 Operating temperature range: 40C to +125C ENABLE 1 8 V IN Output current: +10 mA source/3 mA sink GND SENSE 2 TOP VIEW 7 V SENSE OUT (Not to Scale) Low quiescent current: 100 A (maximum) GND FORCE 3 6 V FORCE OUT NIC 4 5 NIC Low dropout voltage: 250 mV at 2 mA NOTES Output voltage noise (0.1 Hz to 10 Hz): 29 V p-p at 1. NIC = NOT INTERNALLY CONNECTED. 4.096 V (typical) THIS PIN IS NOT CONNECTED INTERNALLY. Qualified for automotive applications Figure 1. 8-Lead MSOP (RM-8 Suffix) APPLICATIONS Automotive battery monitors Portable instrumentation Process transmitters Remote sensors Medical instrumentation GENERAL DESCRIPTION Table 1. Selection Guide The ADR3525W, ADR3530W, ADR3533W, ADR3540W, and ADR3550W are low cost, low power, high precision CMOS Model Output Voltage (V) Input Voltage Range (V) voltage references, featuring a maximum temperature coeffi- ADR3525W 2.500 2.7 to 5.5 cient (TC) of 5 ppm/C (B grade), 8 ppm/C (A grade), low ADR3530W 3.000 3.2 to 5.5 operating current, and low output noise in an 8-lead MSOP ADR3533W 3.300 3.5 to 5.5 package. For high accuracy, the output voltage and temperature ADR3540W 4.096 4.3 to 5.5 coefficient are trimmed digitally during final assembly using the ADR3550W 5.000 5.2 to 5.5 Analog Devices, Inc., proprietary DigiTrim technology. The low output voltage hysteresis and low long-term output voltage drift improve lifetime system accuracy. These CMOS references are available in five output voltages, all of which are specified over the automotive temperature range of 40C to +125C. Rev. 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Technical Support www.analog.com 09594-001ADR3525/ADR3530/ADR3533/ADR3540/ADR3550 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Terminology .................................................................................... 16 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 17 Pin Configuration ............................................................................. 1 Long-Term Output Voltage Drift ............................................. 17 General Description ......................................................................... 1 Power Dissipation....................................................................... 17 Revision History ............................................................................... 2 Applications Information .............................................................. 18 Specifications ..................................................................................... 3 Basic Voltage Reference Connection ....................................... 18 ADR3525 Electrical Characteristics........................................... 3 Input and Output Capacitors .................................................... 18 ADR3530 Electrical Characteristics........................................... 4 4-Wire Kelvin Connections ...................................................... 18 ADR3533 Electrical Characteristics........................................... 5 VIN Slew Rate Considerations ................................................... 18 ADR3540 Electrical Characteristics........................................... 6 Shutdown/Enable Feature ......................................................... 18 ADR3550 Electrical Characteristics........................................... 7 Sample Applications ................................................................... 19 Absolute Maximum Ratings ............................................................ 8 Outline Dimensions ....................................................................... 20 Thermal Resistance ...................................................................... 8 Ordering Guide .......................................................................... 20 ESD Caution .................................................................................. 8 Automotive Products ................................................................. 20 Pin Configuration and Function Descriptions ............................. 9 Typical Performance Characteristics ........................................... 10 REVISION HISTORY 9/2018Rev. A to Rev. B Changes to Figure 1 .......................................................................... 1 Changes to Figure 2 and Table 9 ..................................................... 9 6/2018Rev. 0 to Rev. A Changed Patented to Proprietary ................................ Throughout Changes to Figure 14 ...................................................................... 11 Changes to Figure 20 ...................................................................... 12 Changes to Figure 32 ...................................................................... 14 Change to Figure 33 Caption ........................................................ 15 Changes to Ordering Guide .......................................................... 20 9/2011Revision 0: Initial Version Rev. B Page 2 of 20