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MFG:AD  Package Cooled:SO-8  D/C:4  

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Part Number: AD5245

 

MFG: AD

Package Cooled: SO-8

D/C: 4

Description: The AD5245 provides a compact 2.9 mm × 3 mm packaged solution for 256-position adjustment applications. These dev...


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AD5245 General Description


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 I2C 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. 
 

AD5245 Maximum Ratings

VDD to GND                                                             0.3 V to +7 V
VA, VB, VW to GND                                                                  VDD
IMAX1                                                                                 ±20 mA
Digital Inputs and Output Voltage to GND                    0 V to +7 V
Operating Temperature Range                           40°C to +125°C
Maximum Junction Temperature (TJMAX)                              150°C
Storage Temperature                                         65°C to +150°C
Lead Temperature (Soldering, 10 sec)                                 300°C
Thermal Resistance2JA: MSOP-10                                  230°C/W

AD5245 Features

256-position
End-to-end resistance 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Compact SOT-23-8 (2.9 mm * 3 mm) package
I2C® 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, IDD = 8 µA
Wide operating temperature 40°C to +125°C
Evaluation board available

AD5245 Typical Application

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

AD5245 Connection Diagram

AD5245 Connection Diagram

AD5245 datasheet

AD5245
PDF/DataSheet Download

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