AD5292BRUZ-100 Nonvolatile SPI Digital Potentiometer TSSOP-14 IC Chip

The AD5292BRUZ-100 is a single-channel, 1024-position digital potentiometer in a TSSOP-14 package that replaces a mechanical trimmer with a solid state RDAC of the same function. Wiper position is written and read back over an SPI-compatible interface.

End-to-end resistance is 100 kilohm with a calibrated tolerance within plus or minus 1 percent, which allows the part to be used in open-loop divider and gain circuits without individual calibration. Rheostat mode temperature coefficient is 35 ppm per degree C, and 5 ppm per degree C in voltage divider mode.

This device operates over a wide analog supply range: +9 V to +33 V single supply, or plus or minus 9 V to plus or minus 16.5 V dual supply, so it fits industrial signal chains that a 5 V logic-level digipot cannot reach.

The setting is 20-TP nonvolatile memory, and the stored value is refreshed at power-on. Adjustment is unlimited before the final value is committed, and no external supply is needed for the programming step.

Specified from -40 to +105 degree C, the AD5292BRUZ-100 is RoHS compliant and lead free and ships with full traceability. Samples and volume pricing are available on request.

• Single-channel 1024-position digital potentiometer
• Nominal resistance 100 kilohm
• Calibrated within plus or minus 1 percent end-to-end tolerance
• 20-times programmable (20-TP) nonvolatile wiper memory
• Wiper setting readback through the serial port
• SPI-compatible serial interface
• Wide supply range +9 V to +33 V single supply
• Plus or minus 9 V to plus or minus 16.5 V dual supply
• Rheostat mode temperature coefficient 35 ppm per degree C
• Voltage divider temperature coefficient 5 ppm per degree C
• -40 to +105 degree C extended industrial range
• TSSOP-14 package

• Mechanical potentiometer and rheostat replacement
• Op-amp variable gain control
• Instrumentation gain and offset adjustment
• Programmable filters and delay circuits
• Sensor calibration and programmable power supplies

Typical use is digitally controlled resistance and divider trimming in surface mount assemblies.

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