MAX5395 Datasheet | Maxim Integrated

Description The MAX5395 single, 256-tap volatile, low-voltage linear taper digital potentiometer offers three end-toend resistance values of 10kΩ, 50kΩ, and 100kΩ. Potentiometer terminals are independent of supply for voltages up to 5.25V with single-supply operation from 1.7V to 5.5V (charge pump enabled). User-controlled shutdown modes allow the H, W, or L terminal to be opened with the wiper position set to zero-code, midcode, full-code, or the value contained in the wiper register. Ultra-low-quiescent supply current (< 1µA) can be achieved for supply voltages between 2.6V and 5.5V by disabling the internal charge pump and not allowing potentiometer terminals to exceed the supply voltage by more than 0.3V. The MAX5395 provides a low 50ppm/°C end-to-end temperature coefficient and features an I2C serial interface. The small package size, low operating supply voltage, low supply current, and automotive temperature range of the MAX5395 make the device uniquely suited for the portable consumer market, battery-backup industrial applications, and automotive market. The MAX5395 is available in a lead-free, 8-pin TDFN (2mm x 2mm) package. The device operates over the -40°C to +125°C automotive temperature range. Ordering Information appears at end of data sheet. Features S Single Linear Taper 256-Tap Positions S 10k I, 50k I, and 100k I End-to-End Resistance S 1.7V to 5.5V Extended Single Supply S 0 to 5.25V H, W, L Operating Voltage Independent of VDD S 1µA (typ) Supply Current in Low-Power Mode S ±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy S Power-On Sets Wiper to Midscale S 50ppm/NC End-to-End Temperature Coefficient S 5ppm/NC Ratiometric Temperature Coefficient S -40NC to +125NC Operating Temperature Range S 2mm x 2mm, 8-Pin TDFN Package S I2C-patible Serial Interface Applications Portable Electronics System Calibration Battery-Powered Systems Automotive Electronics Mechanical Potentiometer Replacement Typical Operating Circuit VDD 1.7V TO 5.5V...