Hot-selling and scarce AD5243BRMZ10 Dual, 256-Position, I2C-Compatible Digital Potentiometers MSOP-10 spot stock

Product Descriptions

The AD5243 and AD5248 provide a compact 3 mm × 4.9 mmpackaged solution for dual,256-position adjustment applications.The AD5243 performs the same electronic adjustment function asa 3-terminal mechanical potentiometer, and the AD5248 performsthe same adjustment function as a 2-terminal variable resistor.Available in four end-to-end resistance values (2 .5 kΩ, 10 kΩ,50 kΩ, and 100 kΩ), these low temperature coefficient devicesare ideal for high accuracy and stability-variable resistanceadjustments. The wiper settings are controllable through theI²C-compatible digital interface . The AD5248 has extra packageaddress decode pins, AD0 and AD1, allowing multiple parts toshare the same I²C, 2-wire bus on a PCB. The resistance between

the wiper and either endpoint of the fixed resistor varies linearlywith respect to the digital code transferred into the RDAC latch .

Operating from a 2.7 V to 5.5 V power supply and consumingless than 6 µA allows the AD5243/AD5248 to be used in portablebattery-operated applications.

For applications that program the AD5243/AD5258 at the factory,Analog Devices,Inc., offers device programming software runningon Windows® NT/2000/XP operating systems . This softwareeffectively replaces the need for external I²C controllers, whichin turn enhances the time to market of systems . An AD5243/AD5248 evaluation kit and software are available.The kit includesa cable and instruction manual ​. 

Product Features

2-channel, 256-position potentiometers

End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ

Compact 10-lead MSOP (3 mm × 4.9 mm) package

Fast settling time: tS = 5 µs typical on power -up

Full read/write of wiper register

Power-on preset to midscale

Extra package address decode pins:AD0 and AD1 (AD5248 only)

Computer software replaces microcontroller in factory

programming applications

Single supply: 2.7 V to 5.5 V

Low temperature coefficient: 35 ppm/°C

Low power: IDD = 6 µA maximum

Wide operating temperature: −40°C to +125°C

Evaluation board available

Product Applications

Systems calibrations

Electronics level settings

Mechanical trimmers replacement in new designs

Permanent factory PCB setting

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

Product Specification

Product Photos

For more product information, please download the PDF