Intersil

ISL23345UFRZ-T7A

ISL23345UFRZ-T7A Description

The ISL23345UFRZ-T7A is a high-performance digital potentiometer (DIGIPOT) from Intersil, designed for precision control in a variety of electronic applications. This CMOS device features a 256-tap potentiometer with a linear taper, offering precise resistance adjustment within a range of 50k ohms. The device operates on a supply voltage between 1.2V to 5.5V and 1.7V to 5.5V, making it versatile for different power supply configurations. The ISL23345UFRZ-T7A is part of the XDCP™ series and is housed in a PQCC20 package, suitable for surface mount applications.

ISL23345UFRZ-T7A Features

• Configuration: The ISL23345UFRZ-T7A is configured as a potentiometer, providing a digital interface to adjust analog resistance levels.
• Temperature Coefficient: With a typical temperature coefficient of 65ppm/°C, the device ensures stable performance across varying temperatures.
• Tolerance: The resistance tolerance is ±20%, ensuring reliable operation within specified limits.
• Selectable Address: This feature allows multiple devices to be connected on the same bus, enhancing system flexibility.
• Interface: The device utilizes an I2C interface, facilitating easy integration with microcontrollers and other digital systems.
• Memory Type: The ISL23345UFRZ-T7A features volatile memory, which means it retains settings only while power is applied.
• Number of Circuits: The device includes four circuits, providing multiple channels for resistance control.
• Resistance - Wiper (Ohms) (Typ): The typical wiper resistance is 70 ohms, ensuring minimal impact on circuit performance.
• RoHS Compliance: The ISL23345UFRZ-T7A is ROHS3 compliant, meeting environmental standards for electronic components.

ISL23345UFRZ-T7A Applications

The ISL23345UFRZ-T7A is ideal for applications requiring precise analog control through digital interfaces. Its linear taper and 256-tap resolution make it suitable for:

• Audio Systems: Volume control and tone adjustment in audio equipment.
• Power Management: Voltage and current regulation in power supply circuits.
• Sensor Calibration: Adjusting sensor outputs to match desired specifications.
• Medical Devices: Precision control in medical instrumentation.
• Industrial Control: Fine-tuning of control loops and feedback systems.

Conclusion of ISL23345UFRZ-T7A

The ISL23345UFRZ-T7A from Intersil is a versatile and precise digital potentiometer, offering significant advantages over similar models. Its wide operating voltage range, selectable address feature, and I2C interface make it highly adaptable for various applications. Despite being marked as obsolete, the ISL23345UFRZ-T7A remains a reliable choice for engineers seeking high-performance resistance control in their designs.