Digital Potentiometer 32POS 100KOhm Single 8-Pin uMAX

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 100kO, the MAX5428 a resistance of 50kO, and the MAX5429 a resistance of 10kO. 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.

• 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
• 10k?, 50k?, and 100k? End-to-End Resistances