AD5248BRMZ100-RL7

• Two Independent 256-Position Potentiometer Channels
• End-to-End Resistance of 100 kilohms, Linear Taper
• I2C Serial interface, 2.7V to 5.5V Supply
• Maximum Supply Current of 3.5uA
• Volatile Wiper memory, No Non-Volatile Storage
• 10-Pin MSOP, -40C to 125C, Temperature Coefficient 5ppm/C

The Analog Devices AD5248BRMZ100-RL7 is a dual 256-position digital potentiometer with a 100 kilohm end-to-end resistance, a linear taper and an I2C interface, supplied in a 10-pin MSOP on tape and reel. It runs from a 2.7V to 5.5V supply drawing a maximum of 3.5uA, has volatile wiper memory that resets to midscale on power-up, and lists a 5ppm/C temperature coefficient. Analog Devices rates the AD5248BRMZ100-RL7 from -40C to 125C, describes it as automotive in the product name, and lists it in Production status. Two record notes: the Tolerance attribute reads 55%, which is not a credible resistance tolerance, and the Lead Free attribute reads Contains Lead while RoHS reads Compliant.

Digital potentiometers replace mechanical trimmers so a system can adjust itself under software control instead of requiring a technician with a screwdriver: setting amplifier gain and offset, calibrating sensor bridges and transducer signal paths, trimming LCD contrast and LED brightness, adjusting a regulator feedback divider, and tuning filter corner frequencies. Two channels in one 10-pin MSOP suit differential or stereo signal paths and gain-plus-offset pairs. Because the wiper memory is volatile, the host must rewrite the setting after every power cycle, so this part fits designs with a controller that stores calibration in its own non-volatile memory rather than standalone modules. Buyers are industrial-instrumentation, automotive, medical and audio equipment OEMs, and the automotive designation with the 125C rating supports in-cabin and under-hood-adjacent modules. Verify the resistance tolerance against the datasheet, since the record's 55% figure is not usable for design.