Description:The ISL23328 is a volatile, low voltage, low noise, low power, 128-Tap, dual digitally controlled potentiometer (DCP) with an I2C Bus™ interface. It integrates two DCP cores, wiper switches and control logic on a monolithic CMOS integrated circuit. Each digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. Each potentiometer has an associated volatile Wiper Register (WR
Renesas provides a recommended PCB layout guide in their application note AN1995, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
The ISL23328TFRUZ-T7A has a programmable voltage range, which can be configured using the VSET pin. The device can be configured for different voltage ranges by connecting the VSET pin to a resistor divider network or a digital signal. Refer to the datasheet for specific configuration details.
The maximum current rating for the output stages of the ISL23328TFRUZ-T7A is 10mA per channel. However, it's recommended to derate the current based on the operating temperature and other environmental factors to ensure reliable operation.
The ISL23328TFRUZ-T7A has built-in fault detection mechanisms, such as overcurrent protection and thermal shutdown. To implement additional fault detection and protection mechanisms, engineers can use external components, such as current sense resistors and voltage monitors, and connect them to the device's fault detection pins.
The recommended operating temperature range for the ISL23328TFRUZ-T7A is -40°C to 125°C. However, the device can operate up to 150°C with derated performance. Refer to the datasheet for specific temperature-related specifications.
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ISL23328TFRUZ-T7A Overview
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