The digital supply voltage may be even lower at 1.2V to 5.5V, eliminating the need for a level shifter if the MCU has low voltage digital interface outputs. Users can control the wiper position through either the I2C or SPI interface.
The ESD tolerance is a robust 6.5kV HBM, and the DCPs are offered in leaded packages for easy debugging as well as tiny microTQFN packages for space-constrained applications. Devices may be ordered with 10kOhm, 50kOhm or 100kOhm total resistances. They are designed for use as three-terminal potentiometers or as two-terminal variable resistors in portable medical instrumentation, network cards, smartphones, regulator margining and other applications requiring calibration or digital control.
Features and Specifications
Digital interface voltage range from 1.2V to 5.5V
Analog supply voltage range from 1.7V to 5.5V
The ISL233x5 has multiple address pins to allow up to four DCPs on one I2C bus, providing maximum design flexibility
The ISL234x5’s daisy-chain functionality for SPI devices allows users to link multiple DCPs on one set of I/O lines
Compact microTQFN package is 40% smaller than competitive devices