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| 型号： | AD5245BRJ5-RL7 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 数字电位计 |
| 英文描述： | 256-Position I2C Compatible Digital Potentiometer |
| 中文描述： | 5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO8 |
| 封装： | 2.90 X 3 MM, MO-178BA, SOT-23, 8 PIN |
| 文件页数： | 1/16页 |
| 文件大小： | 995K |
| 代理商： | AD5245BRJ5-RL7 |
256-Position I
2
C Compatible
Digital Potentiometer
AD5245
FEATURES
Rev.
0
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.
Tel: 781.329.4700Fax: 781.326.8703
256-position End-to-end resistance 5 k, 10 k, 50 k, 100 k
Compact SOT
-
23-8 (2.9 mm × 3 mm) package
I
2
C
compatible interface
Extra package address decode pin AD0
Full read/write of wiper register
Power-on preset to midscale
Single supply 2.7 V to 5.5 V
Low temperature coefficient 45 ppm/°C
Low power, I
DD
= 8 μA
Wide operating temperature –40°C
to +125°C
Evaluation board available
APPLICATIONS
Mechanical potentiometer replacement in new designs
Transducer adjustment of pressure, temperature, position,
chemical, and optical sensors
RF amplifier biasing
Automotive electronics adjustment
Gain control and offset adjustment
GENERAL OVERVIEW
The AD5245 provides a compact 2.9 mm × 3 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,
solid-state reliability, and superior low temperature coefficient
performance.
The wiper settings are controllable through an I
2
C compatible
digital interface, which can also be used to read back the wiper
register content. AD0 can be used to place up to two devices on
the same bus. Command bits are available to reset the wiper
position to midscale or to shut down the device into a state of
zero power consumption.
Operating from a 2.7 V to 5.5 V power supply and consuming
less than 5 μA allows for usage in portable battery-operated
applications.
FUNCTIONAL BLOCK DIAGRAM
I
2
C INTERFACE
WIPER
REGISTER
SCL
SDA
AD0
GND
V
DD
A
W
B
Figure 1.
PIN CONFIGURATION
A
B
AD0
SDA
1
2
3
4
5
8
7
6
W
V
DD
GND
SCL
TOP VIEW
(Not to Scale)
AD5245
Figure 2.
Note:
The terms
digital potentiometer
,
VR
, and
RDAC
are used interchangeably.
Purchase of licensed I
2
C components of Analog Devices or one of its sublicensed
Associated Companies conveys a license for the purchaser under the Philips I
C
Patent Rights to use these components in an I
C system, provided that the system
conforms to the I
2
C Standard Specification as defined by Philips.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5245BRJZ100 | 制造商:Analog Devices 功能描述:DGTL POT 256POS 100K SOT23-8 制造商:Analog Devices 功能描述:DGTL POT, 256POS, 100K, SOT23-8 |
| AD5245BRJZ100-R2 | 功能描述:IC DGTL POT 256POS SOT-23-8 T/R RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| AD5245BRJZ100-R21 | 制造商:AD 制造商全称:Analog Devices 功能描述:256-Position I2C-Compatible Digital Potentiometer |
| AD5245BRJZ100-RL7 | 功能描述:IC DGTL POT 256POS 100K SOT23-8 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 35 ppm/°C 存储器类型:非易失 接口:3 线串口 电源电压:2.7 V ~ 5.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN-EP（3x3） 包装:剪切带 (CT) 产品目录页面:1399 (CN2011-ZH PDF) 其它名称:MAX5423ETA+TCT |
| AD5245BRJZ100-RL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:256-Position I2C-Compatible Digital Potentiometer |
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