Press Release

Industry's Smallest I²C, 32-Tap, Nonvolatile, Linear Digital Potentiometers Fit in 3mm x 3mm SOT23 or TDFN Packages

SUNNYVALE, CA-November 16, 2004-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX5432–MAX5435, the industry's smallest I²C^™, 32-tap, nonvolatile digital potentiometers packaged in a tiny, 3mm x 3mm SOT23 or TDFN. These devices feature an integrated EEPROM. This on-chip memory stores the wiper position prior to power-down, thus enabling the devices to operate like mechanical potentiometers. This capability results in a significant size reduction compared to mechanical pots. The MAX5432–MAX5435 also offer ratiometric and end-to-end temperature coefficients as low as 5ppm/°C and 35ppm/°C, respectively.

These new digital potentiometers save power by requiring less than 1µA in standby and operating from a 2.7V to 5.25V single supply. End-to-end resistances of 50kΩ and 100kΩ are available. The MAX5432–MAX5435 are available in two wiper configurations: voltage divider or variable resistor. An I²C-compatible, 2-wire serial interface adjusts the wiper position up and down the resistor ring. Four addressing options per device allow multiple devices to share the same I²C bus. Prices start at $0.63 (1000-up, FOB USA).

Purchase of I²C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated Companies, conveys a license under the Philips I²C Patent Rights to use these components in an I²C system, provided that the system conforms to the I²C Standard Specification as defined by Philips.