The CAT5419 is a dual Digitally Programmable Potentiometers (DPP™) with 64 taps and a 2-wire interface. It features two linear-taper digital potentiometers, 64 resistor taps per potentiometer, end to end resistance of 2.5kΩ, 10kΩ, 50kΩ or 100kΩ, potentiometer control and memory access via a 2-wire interface (I2C like), low wiper resistance of typically 80, four non-volatile wiper settings for each potentiometer, recall of wiper settings at power up, 2.5 to 6.0 volt operation, standby current less than 1µA, 1,000,000 nonvolatile WRITE cycles, 100 year nonvolatile memory data retention, 24-lead SOIC and 24-lead TSSOP packages, and write protection for the data register.
The CAT5419 is a dual digitally programmable potentiometer (DPP™) with 64 resistor taps per potentiometer and integrated control logic plus 16 bytes of non‑volatile memory. It can be used as a potentiometer or a two‑terminal variable resistor for circuit‑level adjustments.
This document details the device’s pin configuration, electrical specifications, serial‑bus protocol, write protection features, and ordering options. It also includes absolute maximum ratings, recommended operating conditions, and reliability data for designers and system integrators.
| End‑to‑end resistance options | 2.5 kΩ, 10 kΩ, 50 kΩ or 100 kΩ |
|---|---|
| Operating voltage range | 2.5 V to 6.0 V |
| Standby current | < 1 pA |
| Non‑volatile write cycles | 1 000 000 cycles per byte |
| Data retention | 100 years |
| Typical wiper resistance | 80 Ω |
| Package types | 24‑lead SOIC and 24‑lead TSSOP |
| Industrial temperature range | -40 °C to +85 °C |
The device operates from 2.5 V up to 6.0 V.
It can endure up to 1 000 000 write cycles per byte.
The WP pin is used for write protection.
Each potentiometer provides 64 resistor taps.