Moteur de recherche de fiches techniques de composants électroniques |
|
AD5121 Fiches technique(PDF) 1 Page - Analog Devices |
|
AD5121 Fiches technique(HTML) 1 Page - Analog Devices |
1 / 32 page Single Channel, 128-/256-Position, I2C/SPI, Nonvolatile Digital Potentiometer Data Sheet AD5121/AD5141 Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©2012 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES 10 kΩ and 100 kΩ resistance options Resistor tolerance: 8% maximum Wiper current: ±6 mA Low temperature coefficient: 35 ppm/°C Wide bandwidth: 3 MHz Fast start-up time < 75 µs Linear gain setting mode Single- and dual-supply operation Independent logic supply: 1.8 V to 5.5 V Wide operating temperature: −40°C to +125°C 3 mm × 3 mm LFCSP package 4 kV ESD protection APPLICATIONS Portable electronics level adjustment LCD panel brightness and contrast controls Programmable filters, delays, and time constants Programmable power supplies GENERAL DESCRIPTION The AD5121/AD5141 potentiometers provide a nonvolatile solution for 128-/256-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 and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching. The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, through RAW and RWB string resistors, allowing very accurate resistor matching. The high bandwidth and low total harmonic distortion (THD) ensure optimal performance for ac signals, making it suitable for filter design. The low wiper resistance of only 40 Ω at the ends of the resistor array allows for pin-to-pin connection. The wiper values can be set through an SPI-/I2C-compatible digital interface that is also used to read back the wiper register and EEPROM contents. The AD5121/AD5141 is available in a compact, 16-lead, 3 mm × 3 mm LFCSP. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C. FUNCTIONAL BLOCK DIAGRAM VDD INDEP VSS GND WP VLOGIC 7/8 SERIAL INTERFACE POWER-ON RESET RDAC INPUT REGISTER EEPROM MEMORY A W B AD5121/ AD5141 SYNC/ADDR0 SCLK/SCL SDI/SDA SDO/ADDR1 DIS RESET Figure 1. Table 1. Family Models Model Channel Position Interface Package AD51231 Quad 128 I2C LFCSP AD5124 Quad 128 SPI/I2C LFCSP AD5124 Quad 128 SPI TSSOP AD51431 Quad 256 I2C LFCSP AD5144 Quad 256 SPI/I2C LFCSP AD5144 Quad 256 SPI TSSOP AD5144A Quad 256 I2C TSSOP AD5122 Dual 128 SPI LFCSP/TSSOP AD5122A Dual 128 I2C LFCSP/TSSOP AD5142 Dual 256 SPI LFCSP/TSSOP AD5142A Dual 256 I2C LFCSP/TSSOP AD5121 Single 128 SPI/I2C LFCSP AD5141 Single 256 SPI/I2C LFCSP 1 Two potentiometers and two rheostats. |
Numéro de pièce similaire - AD5121 |
|
Description similaire - AD5121 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |