전자부품 데이터시트 검색엔진 |
|
AD5259EVAL 데이터시트(PDF) 1 Page - Analog Devices |
|
AD5259EVAL 데이터시트(HTML) 1 Page - Analog Devices |
1 / 14 page Nonvolatile, I2C Compatible 256-Position, Digital Potentiometer Preliminary Technical Data AD5259 Rev. PrJ 7/22/04 | Page 1 of 14 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 rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES Nonvolatile memoy maintains wiper settings 256-position Compact MSOP-10 (3 mm × 4.9 mm) package I2C® compatible interface VLOGIC pin provides increased interface flexibility. End-to-end resistance 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Resistance tolerance stored in EEMEM(0.1% accuracy) Power On EEMEM Refresh Time < 1ms Software write protect command Tri-state address decode pins AD0 and AD1 100-year typical data retention at 55°C Wide operating temperature –40°C to +85°C +3V to +5V single-supply APPLICATIONS LCD panel VCOM adjustment LCD panel brightness and contrast control Mechanical potentiometer replacement in new designs Programmable power supplies RF amplifier biasing Automotive electronics adjustment Gain control and offset adjustment Low resolution DAC replacement Electronics level settings GENERAL OVERVIEW The AD5259 provides a compact nonvolatile 3 mm × 4.9 mm packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution and solid-state reliability. The wiper settings are controllable through an I2C compatible digital interface, which can also be used to read back the wiper register and EEMEM content. Resistor tolerance is also stored within EEMEM and can be used to provide an end-to-end tolerance accuracy of 0.1%. In order to provide added security, command bits are available to place the part into a write protect mode in which data can not be written to the EEMEM register. In addition, a separate VLOGIC pin provides the user with increased interface flexibility. For users who need multiple parts on one bus, address bits AD0 and AD1 allow up to nine devices on the same bus. FUNCTIONAL BLOCK DIAGRAMS DATA CONTROL RDAC EEPROM COMMAND DECODE LOGIC ADDRESS DECODE LOGIC CONTROL LOGIC RDAC1 REGISTER A1 W1 B1 RDAC1 SCL SDA I2C SERIAL INTERFACE AD0 VDD VLOGIC 8 POWER ON RESET 8 DGND AD1 Figure 1. Figure 3. Pinout. Note: The terms digital potentiometer, VR, and RDAC are used interchangeably. Purchase of licensed I 2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2C Patent Rights to use these components in an I 2C system, provided that the system conforms to the I 2C Standard Specification as defined by Philips. 1 2 3 4 5 10 9 8 7 6 W AD0 AD1 SDA SCL AD5259 TOP VIEW (Not to Scale) A B VDD GND VLOGIC |
유사한 부품 번호 - AD5259EVAL |
|
유사한 설명 - AD5259EVAL |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 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 |