AD5201BRMZ50 Single-Channel Digital Potentiometer MSOP-10 Integrated Circuit Chip

The AD5201BRMZ50 is a single programmable resistor with 33 positions in a MSOP-10 package, controlled through a 3-wire SPI-compatible serial input. The wiper taps the programmable resistance at the point set by the loaded code, so resistance between the wiper and either end terminal varies linearly with that code.

End-to-end resistance is 50 kilohm, and the wiper connects directly to both end terminals, which simplifies wiring in rheostat mode. Because the part works from a single +2.7 V to +5.5 V supply or plus or minus 2.7 V dual supplies, it can sit directly in ground referenced ac signal paths.

A 33-position taper keeps the register small and the interface simple where fine resolution is not required, and the power-on midscale preset gives a defined starting attenuation or gain without host intervention.

Rheostat and potentiometer-divider behaviour, including DNL, THD, noise and bandwidth, is fully characterised, so the part can be designed in without extra bench characterisation. The thin package suits space-constrained boards such as PCMCIA cards.

The AD5201BRMZ50 is RoHS compliant and lead free and ships with full traceability. Samples and volume pricing are available on request.

• Single programmable resistor with 33 positions
• End-to-end resistance 50 kilohm
• Wiper connects directly to both end terminals
• 3-wire SPI-compatible serial data input
• Single +2.7 V to +5.5 V supply operation
• Plus or minus 2.7 V dual supply for ground referenced ac signals
• Power-on wiper preset to midscale
• Rheostat and divider mode fully characterised
• Nominal 500 ppm per degree C end-to-end temperature coefficient
• Compact MSOP-10 package under 1.1 mm height
• RoHS compliant and lead free

• Mechanical trimmer replacement in compact boards
• Ground referenced ac signal level control
• Programmable gain and attenuation
• Sensor offset calibration
• Portable and card-format electronics

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

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