MAX5428 Datasheet | Maxim Integrated

.Data Sheet.co.kr 19-2462; Rev 2; 3/05 KIT ATION EVALU BLE A IL A V A One-Time Programmable, Linear-Taper Digital Potentiometers General Description Features - Wiper Position Stored After One-Time Fuse Programming - User-Defined Power-On Reset Position - 35ppm/°C End-to-End Temperature Coefficient and 5ppm/°C Ratiometric Temperature Coefficient - 32 Tap Positions - Tiny 8-Pin Thin QFN and µMAX Packages - Ultra-Low 1.5µA (max) Static Supply Current - 2.7V to 5.5V Single-Supply Operation - Wiper Position Programmed Through Simple 2-Wire Serial Interface - 10kΩ, 50kΩ, and 100kΩ End-to-End Resistances MAX5427/MAX5428/MAX5429 The MAX5427/MAX5428/MAX5429 linear-taper digital potentiometers function as mechanical potentiometers, but replace the mechanics with a simple 2-wire digital interface. These digital potentiometers are unique in that they have an optional one-time programmable feature that either sets the wiper’s power-on reset (POR) position to a user-defined value, or the wiper can be set and the interface disabled to prevent further adjustment. The MAX5427 has an end-to-end resistance of 100kΩ, the MAX5428 a resistance of 50kΩ, and the MAX5429 a resistance of 10kΩ. All these devices have 32 wiper positions, operate from a single 2.7V to 5.5V supply, and use less than 1.5µA (max) static supply current. The MAX5427/MAX5428/MAX5429 are available in 8-pin thin QFN and µMAX® packages. Each device is guaranteed over the extended temperature range of -40°C to +85°C. Ordering Information PART MAX5427EUA MAX5427ETA MAX5428EUA MAX5428ETA MAX5429EUA MAX5429ETA TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 µMAX 8 Thin QFN-EP- 8 µMAX 8 Thin QFN-EP- 8 µMAX 8 Thin QFN-EP- R (kΩ) 100 100 50 50 10 10 Applications Mechanical Potentiometer Replacement Products Using One-Time Factory Calibration Pin Configurations TOP VIEW W CS VDD GND 1 2 3 4 MAX5427 MAX5428 MAX5429 8 7 6 5 H L U/D VPP - EP =...