AD5280BRUZ200-R7

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1. Describe

The AD5280BRUZ200-R7/AD5282 are single and dual channel, 256-bit digitally controlled variable resistor (VR)2. These devices perform the same electronic adjustment function As a potentiometer, trimmer or variable resistor. Each VR provides A fully programmable resistor value between A terminal and wiper or B terminal and wiper. this Fixed A to B terminal resistors of 20 kΩ, 50 kΩ, or 200 kΩ have 1% channel-to-channel matching tolerance. Nominally The temperature coefficient of the two parts is 30 ppm/ Degrees Celsius (ppm/°C). Another key feature is Parts can operate up to +15 V or ±5 V. Tap position programming defaults to system mid-range Open. VR wiper position is programmed after power up Via an I2C-compatible 2-wire serial data interface. AD5280BRUZ200-R7/ The AD5282 has sleep mode programmability. This allows any preset levels at power-up, is an alternative to expensive EEPROM solution. Both sections have additional programmable Enables the user to drive digital loads, logic outputs of logic gates, Analog switches in LED drivers and systems. The AD5280BRUZ200-R7/AD5282 are available in low profile, surface mount 14-pin TSSOP and 16-pin TSSOP. All parts are guaranteed Operates over extended industrial temperature range −40°C to +85°C.

2. Feature

    1. AD5280: 1 channel

    2. 256 positions

    3. +10V to +15V single power supply; ±5.5 V dual power supply operation

    4. Fixed terminal resistance: 20kΩ, 50kΩ, 200kΩ

    5. Low temperature coefficient: 30 ppm/°C

    6. Boot mid-range preset 1

    7. Programmable Reset

    8. Operating temperature: −40oC to +85oC

    9. I2C compatible interface

3. Application

    1. Multimedia, video and audio

    2. Communication

    3. Mechanical potentiometer replacement

    4. Meter: gain, offset adjustment

    5. Programmable voltage source

    6. Programmable current source

    7. Line impedance matching