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AD5114 Fiches technique(PDF) 1 Page - Analog Devices |
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AD5114 Fiches technique(HTML) 1 Page - Analog Devices |
1 / 16 page Single-Channel, 64-Position, Push Button, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer Data Sheet AD5116 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©2011 Analog Devices, Inc. All rights reserved. FEATURES Single-channel, 64-position resolution 5 kΩ, 10 kΩ, 80 kΩ nominal resistance Maximum ±8% nominal resistor tolerance error Low minimum A-W and B-W resistance feature End scale resistance indicator 2.3 V to 5.5 V single-supply operation ±6 mA maximum continuous A, B, and W current density Simple push button manual configurable control Built-in adaptive debouncer Discrete step-up/step-down control Auto scan up/down control Auto or manual save of wiper position Power-on EEPROM refresh time < 50 μs Rheostat mode temperature coefficient: 35 ppm/°C Potentiometer mode temperature coefficient: 5 ppm/°C 50-year typical data retention at 125°C 1 million write cycles Wide operating temperature: −40°C to +125°C Thin, 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package APPLICATIONS Mechanical potentiometer replacement Portable electronics level adjustment Audio volume control Low resolution DAC LCD panel brightness and contrast control Programmable voltage to current conversion Programmable filters, delays, time constants Feedback resistor programmable power supply Sensor calibration FUNCTIONAL BLOCK DIAGRAM ADAPTIVE DEBOUNCER CONTROL LOGIC BLOCK EEPROM RDAC REGISTER AD5116 A W B DATA DATA GND VDD VDD ASE PU PD Figure 1. GENERAL DESCRIPTION The AD5116 provides a nonvolatile digital potentiometer solution for 64-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the A, B, and W pins. The low resistor tolerance, low nominal temperature coefficient, and high bandwidth simplify open-loop applications, as well as tolerance matching applications. The new low A-W and B-W resistance feature minimizes the wiper resistance in the extremes of the resistor array to typically 45 Ω. A simple push button interface allows manual control with just two external push button switches. The AD5116 is designed with a built-in adaptive debouncer that ignores invalid bounces due to contact bounce (commonly found in mechanical switches). The debouncer is adaptive, accommodating a variety of push buttons. The AD5116 can automatically save the last wiper position into EEPROM, making it suitable for applications that require a power-up in the last wiper position, for example, audio equipment. The AD5116 is available in a 2 mm × 2 mm 8-lead LFCSP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +125°C. Table 1. NVM ±8% Resistance Tolerance Family Model Resistance (kΩ) Position Interface AD5110 10, 80 128 I2C AD5111 10, 80 128 Up/down AD5112 5, 10, 80 64 I2C AD5113 5, 10, 80 64 Up/down AD5116 5, 10, 80 64 Push button AD5114 10, 80 32 I2C AD5115 10, 80 32 Up/down |
Numéro de pièce similaire - AD5114 |
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Description similaire - AD5114 |
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