DP7259

Quad Digital Potentiometers (DP) with 256 Taps and 2-wire Interface DP7259 FEATURES Four linear taper digital potentiometers 256 resistor taps per potentiometer End to end resistance 50kŸ or 100kŸ Potentiometer control and memory access via 2-wire interface (I2C like) Low wiper resistance, typically 100Ÿ Nonvolatile memory storage for up to four wiper settings for each potentiometer Automatic recall of saved wiper settings at power up 2.5 to 6.0 volt operation Standby current less than 1µA 1,000,000 nonvolatile WRITE cycles 100 year nonvolatile memory data retention 24-lead SOIC and 24-lead TSSOP packages Industrial temperature range For Ordering Information details, see page 15. DESCRIPTION The DP7259 is four digital potentiometers (DPs) integrated with control logic and 16 bytes of NVRAM memory. Each DP consists of a series of resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outp...