X9C103SZ

Overview

The X9C103SZ is a single-channel non-volatile digital potentiometer from the X9C10 series, manufactured by Renesas Electronics. It features a 10 kΩ end-to-end resistance with a linear taper and 100 wiper tap points. The device operates on a single 5V supply (4.5V to 5.5V range) and utilizes a 3-wire serial interface for control. It integrates non-volatile memory to store wiper positions, which are recalled upon power-up. Packaged in an 8-pin SOIC surface-mount case, it supports an operating temperature range of 0°C to 70°C.

Feature Summary

• Non-volatile memory retains wiper position data without power, recalling settings at power-up
• 100-tap resolution with 10 kΩ linear resistance and ±20% tolerance
• Low-power CMOS technology with 750 µA standby current at 5V
• High endurance rated for 100,000 data changes per bit

Applications

• Adjusting gain in voltage amplifier circuits
• Setting programmable DC reference voltages for comparators
• Volume control in audio circuits
• Trimming offset voltage errors in amplifier circuits
• Parameter adjustment in signal processing systems

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. The 'SZ' designation typically indicates a standard industrial temperature range and SOIC-8 package. Confirm RoHS compliance status as manufacturing sites or labeling may change over time. Check for alternate manufacturing site notifications if long-term supply stability is required.

Selection Notes

Select this component when a simple 3-wire interface is preferred over SPI-based alternatives like the X9110 series. Ensure the application requires a 10 kΩ resistance value and 100-step resolution. Verify that the 5V single-supply operation aligns with the system voltage rails. Consider the ±20% resistance tolerance for precision requirements.

Part Context

The X9C103SZ belongs to the XDCP™ family, originally developed by Intersil before its acquisition by Renesas. This series provides solid-state replacements for mechanical potentiometers in applications requiring digital control and memory retention. It serves as a cost-effective solution for parameter adjustment where high resolution or multi-channel integration is not necessary.

Replacement Considerations

The X9C102SZ offers 1 kΩ resistance, while the X9C104SZ provides 100 kΩ resistance within the same package and interface. For higher resolution or SPI interfaces, consider the X9110 series. Cross-reference with other manufacturers' non-volatile digital potentiometers only if pin compatibility and electrical specifications match exactly.