AD5291 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD5291
Manufacturer

ADI
ChipWorker Part#

CW353143037
RoHS

Lead free / RoHS Compliant
Description

Single Channel, 256Position, 1% R-Tol, Digital Potentiometer with 20-Times Programmable Memory
Documentation

Datasheet

AD5291 Global Supplier

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AD5291 Specifications

Attribute	Attribute Value

Part Number	AD5291
Manufacturer	ADI
ChipWorker Part#	CW353143037
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The AD5291 and AD5292 are single-channel, 256-/1024-position digital potentiometers1 that combine industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package. These devices are capable of operat-ing across a wide voltage range, supporting both dual supply operation at ±10.5 V to ±16.5 V and single supply operation at +21 V to +33 V, while ensuring less than 1% end-to-end resistor tolerance error and offering 20-time programmable (20-TP) 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.
1The terms digital potentiometer and RDAC are used interchangeably.
**Applications**
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
### Features and Benefits
Single-channel, 256-/1024-position resolution
20 kΩ, 50 kΩ, and 100 kΩ
nominal resistance
Maximum ±1% nominal resistor tolerance error (resistor performance mode)
20-times programmable wiper memory
Rheostat mode temperature coefficient: 35 ppm/°C
Voltage divider temperature coefficient: 5 ppm/°C
+9 V to +33 V single-supply operation
±9 V to ±16.5 V dual-supply operation
See data sheet for additional features

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- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
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- Surface testing

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