AD5144ABRUZ100-RL7

在AD5124 / AD5144 / AD5144A电位为128 / 256位调整应用的非易失性解决方案，提供的保证低电阻容差误差为±8 ％，最高至±6 mA的电流密度在AX， BX，和WX销。 The AD5124/AD5144/AD5144A potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins.

Product Details

The AD5124/AD5144/AD5144A potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins.

The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching.

The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, through the RAW and RWB string resistors, allowing very accurate resistor matching.

The high bandwidth and low total harmonic distortion THD ensure optimal performance for ac signals, making these devices suitable for filter design.

The low wiper resistance of only 40 Ω at the ends of the resistor array allow for pin-to-pin connection.

The wiper values can be set through an SPI-/I2C-compatible digital interface that is also used to read back the wiper register and EEPROM contents.

The AD5124/AD5144/AD5144A are available in a compact, 24-lead, 4 mm × 4 mm LFCSP and a 20-lead TSSOP. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.

Applications

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Portable electronics level adjustment

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LCD panel brightness and contrast controls

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Programmable filters, delays, and time constants

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Programmable power supplies

### Features and Benefits

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10 kΩ and 100 kΩ resistance option

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Resistor tolerance: 8% maximum

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Wiper current: ±6 mA

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Low temperature coefficient: 35 ppm/°C

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Wide bandwidth: 3 MHz

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Fast start-up time < 75 μs

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Linear gain setting mode

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Single- and dual-supply operation

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Independent logic supply: 1.8 V to 5.5 V

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

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4 mm × 4 mm package option