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ADN2860

更新时间： 2024-01-18 15:13:44
品牌 Logo 应用领域
亚德诺 - ADI 电位器存储
页数 文件大小 规格书
15页 1125K
描述
3-Channel Digital Potentiometer with Nonvolatile Memory

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ADN2860 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFN包装说明：4 X 4 MM, LFCSP-24
针数：24Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.91其他特性：IT CAN ALSO OPERATE FROM A 3 TO 5.5V SINGLE SUPPLY
标称带宽：0.125 kHz控制接口：2-WIRE SERIAL
转换器类型：DIGITAL POTENTIOMETERJESD-30 代码：S-XQCC-N24
JESD-609代码：e0长度：4 mm
标称负供电电压：-2.5 V功能数量：1
位置数：512端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：VQCCN
封装等效代码：LCC24,.16SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：3.3/5 V认证状态：Not Qualified
电阻定律：LINEAR最大电阻容差：30%
最大电阻器端电压：2.5 V最小电阻器端电压：-2.5 V
座面最大高度：1 mm子类别：Digital Potentiometers
标称供电电压：2.5 V表面贴装：YES
标称温度系数：35 ppm/ °C温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED标称总电阻：250000 Ω
宽度：4 mmBase Number Matches：1

ADN2860 数据手册

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3-Channel Digital  
Potentiometer with  
Nonvolatile Memory  
a
Preliminary Technical Data  
ADN2860  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
3 Channels: Dual 512-Position  
RDAC0  
VDD  
256 bytes  
A0  
W0  
B0  
USER EEPROM  
Single 128-Position  
VSS  
RDAC0  
REGISTER  
25KΩ or 150KΩ Full-Scale Resistance  
GND  
32 bytes  
RDAC EEPROM  
9 bit  
Low Temperature Coefficient: 35ppm/°C  
SCL  
SDA  
A0_R  
A1_R  
A0_E  
A1_E  
Nonvolatile Memory Retains Wiper Settings  
8
DATA  
RDAC1  
A1  
W1  
B1  
I2C  
SERIAL  
Permanent Memory Write-Protection  
Linear Increment/Decrement  
RDAC1  
REGISTER  
INTERFACE  
CONTROL  
9 bit  
Log taper Increment/Decrement  
I2C Compatible Serial Interface  
COMMAND DECODE LOGIC  
RDAC2  
A2  
W2  
B2  
3V to 5V Single Supply Operation  
±2.5V Dual Supply Operation  
RDAC2  
REGISTER  
POWER  
ON RESET  
PRB  
ADDRESS DECODE LOGIC  
CONTROL LOGIC  
7 bit  
256 Bytes General Purpose User EEPROM  
11 Bytes RDAC user EEPROM  
WPB  
GBIC and SFP Compliant EEPROM  
100-year Typical Data Retention at TA=55°C  
APPLICATIONS  
Laser Diode Drivers  
Optical Amplifiers  
TIA Gain Setting  
TEC Controller Temperature Set Points  
actual end-to-end resistance is known, which is valuable for  
calibration in precision applications.  
GENERAL DESCRIPTION  
The ADN2860 provides dual 512-position and a single 128-  
position digitally controlled variable resistor1 (VR) in a single  
4x4mm LFCSP package. This device performs the same  
electronic adjustment function as a potentiometer, trimmer, or  
variable resistor. Each VR offers a completely programmable  
value of resistance between the A terminal and the Wiper or the  
B terminal and the Wiper. The fixed A-to-B terminal resistance  
of 25kΩ or 250kΩ has a 1% channel-to-channel matching  
tolerance and a nominal temperature coefficient of 35ppm/°C.  
The ADN2860 EEPROM, channel resolution, and package size  
conforms to GBIC and SFP specifications. The ADN2860 is  
available in a 4x4mm 24-lead LFCSP package. All parts are  
guaranteed to operate over the extended industrial temperature  
range of –40C to 85°C.  
1.  
2.  
The term nonvolatile memory, EEMEM, and EEPROM are used  
interchangeably  
The term programmable resistor, variable resistor, RDAC, and digital  
potentiometer are used interchangeably.  
Wiper position programming, EEPROM reading, and EEPROM  
writing is conducted via the standard 2-wire I2C interface.  
Previous/Default wiper position settings can be stored in  
memory, and refreshed upon system power-up.  
Additional features of the ADN2860 include preprogrammed  
linear and logarithmic increment/decrement wiper changing, and  
actual resistor tolerances are stored in EEPROM so that the  
REV. PrD  
Page 1 of 15  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
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. 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.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  
1234567...15

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