ISL23711UIU10Z

Digital Potentiometers Overview

The ISL23711UIU10Z is a volatile digitally controlled potentiometer (XDCP) featuring an I²C serial interface. It provides 128 taps with a nominal resistance of 50kΩ, operating within a supply voltage range of 2.7V to 5.5V for VCC and -2.7V to -5.5V for V-. The device includes a 7-bit volatile wiper register controlling the position between fixed terminals RH and RL. Key electrical parameters include a typical total resistance temperature coefficient of ±50ppm/°C, a ratiometric temperature coefficient of ±4ppm/°C, and a maximum standby current of 500nA. It is housed in a 10-lead MSOP package.

Digital Potentiometers Feature Summary

• I²C Serial Interface: Supports up to four devices on the bus via hardware address pins A0 and A1.
• 128-Tap Resolution: Implemented with 127 resistive elements and a wiper switching network.
• Low Power Consumption: Features a maximum active current of 200µA and standby current of 500nA.
• Dual Supply Operation: Compatible with positive logic supply (VCC) and negative supply (V-) for wide terminal voltage ranges.

Digital Potentiometers Applications

• Industrial and Automotive Control Systems
• Amplifier Bias and Control Circuits
• Parameter and Bias Adjustments

Digital Potentiometers Procurement Notes

Verify that the component matches the specific 50kΩ resistance option indicated by the 'U' suffix in the model number. Confirm the package type is the 10-lead MSOP. Ensure the order includes the 'Z' suffix for RoHS compliance and lead-free processing if required by the manufacturing process. Check for the '-T' suffix requirement if tape and reel packaging is needed instead of tube.

Digital Potentiometers Selection Notes

Select this part when a volatile digital potentiometer with 50kΩ end-to-end resistance is required. The device supports both three-terminal potentiometer and two-terminal variable resistor configurations. Consider the 128-step resolution and I²C compatibility for microcontroller-based control loops. Note that the wiper position resets to the center (64 decimal) upon power-up.

Digital Potentiometers Part Context

This component belongs to the Intersil ISL23711 series of XDCPs. The 'U' designation specifically identifies the 50kΩ resistance variant, while the 'W' variant offers 10kΩ. Both share identical pinouts, interfaces, and electrical characteristics except for the total resistance value. The device is manufactured using low-power CMOS technology.

Digital Potentiometers Replacement Considerations

The datasheet explicitly states that this component is not recommended for new designs and lists no recommended replacement. Users are advised to contact the Technical Support Center for guidance on alternative components or design updates.