Single Channel, 1024-Position, 1% R-Tol, Digital Potentiometer with 20-Times Programmable Memory
The guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications.
The AD5291 and AD5292 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 20-TP memory. The AD5291 and AD5292 do not require any external voltage supply to facilitate fuse blow, and there are 20 opportunities for permanent programming. During 20-TP activation, a permanent blow fuse command freezes the wiper position (analogous to placing epoxy on a mechanical trimmer).
The AD5291 and AD5292 are available in a compact 14-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +105°C.
The AD5292-EP supports defense and aerospace applications (AQEC)
1The terms digital potentiometer and RDAC are used interchangeably.
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, and time constants
- Programmable power supply
- Low resolution DAC replacement
- Sensor calibration
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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.