CAT5113ZI10

Digital Potentiometers Overview

The CAT5113ZI-10 is a single digital potentiometer IC from onsemi, featuring a 10 kΩ linear taper resistor array with 100 tap positions. It operates on a single supply voltage ranging from 2.5 V to 6.0 V and draws an ultra-low standby current of 10 nA. The device utilizes a non-volatile EEPROM to store the wiper position, ensuring settings are retained during power loss and automatically reinstated upon power restoration. Control is managed via a three-pin serial interface consisting of Chip Select (CS), Up/Down (U/D), and Increment (INC).

Digital Potentiometers Feature Summary

• 100-position linear taper potentiometer with 10 kΩ resistance.
• Non-volatile EEPROM storage retains wiper setting after power down.
• Ultra-low standby current of 10 nA.
• Single supply operation from 2.5 V to 6.0 V.
• Increment Up/Down serial interface using CS, U/D, and INC pins.

Digital Potentiometers Applications

• Automated product calibration.
• Remote control adjustments.
• Offset, gain, and zero control in instrumentation.
• Tamper-proof calibrations.
• Contrast, brightness, and volume controls.

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix for package type and lead finish. The 'Z' suffix indicates an MSOP-8 package with Matte-Tin lead finish. Confirm availability status as manufacturing changes or end-of-life notices may affect supply. Check RoHS compliance documentation for environmental requirements.

Digital Potentiometers Selection Notes

Select the CAT5113ZI-10 for applications requiring a 10 kΩ digital potentiometer in a compact MSOP-8 surface-mount package. Ensure the system voltage falls within the 2.5 V to 6.0 V range. Consider the 100-tap resolution and ±20% resistance tolerance when designing precision circuits. Verify that the industrial temperature range (-40°C to +85°C) meets operational requirements.

Digital Potentiometers Part Context

This component belongs to the CAT5113 series of 100-tap digital potentiometers. The 'ZI' designation specifically identifies the MSOP-8 package variant with a 10 kΩ resistance value. Other variants in the series include different resistance values (1 kΩ, 50 kΩ, 100 kΩ) and package types such as PDIP, SOIC, and TSSOP.

Digital Potentiometers Replacement Considerations

Direct replacements must match the 100-tap count, 10 kΩ resistance, and MSOP-8 package. Verify pin compatibility for CS, U/D, INC, RH, RW, RL, VCC, and GND. Check if alternative manufacturers offer equivalent non-volatile digital potentiometers with similar electrical characteristics and interface protocols.

Digital Potentiometers FAQ

How is the wiper position stored and recalled?

The wiper position is stored in non-volatile EEPROM when the CS input transitions high while the INC input is also high. Upon power restoration, the stored value is automatically recalled to set the wiper position.

What is the function of the U/D input?

The U/D (Up/Down) input determines the direction of wiper movement. When high, INC pulses move the wiper toward the RH terminal; when low, they move it toward the RL terminal.

Can the RH and RL terminals be swapped?

Yes, the RH and RL terminals are electrically interchangeable. The voltage applied to either terminal must not exceed the supply voltage (VCC) or go below ground (GND).