MAX5417/MAX5418/MAX5419 are non-volatile, linear digital potentiometers that function like mechanical potentiometers but can be controlled by a simple 2-wire digital interface, allowing multiple devices to communicate. Each device has the functionality of a discrete potentiometer or variable resistor with 256 tap points.
The Maxim MAX5417, MAX5418 and MAX5419 are 256‑tap, non‑volatile digital potentiometers available in 8‑pin TDFN packages. They support both voltage‑divider and variable‑resistor modes, with selectable resistance values of 50 kΩ, 100 kΩ or 200 kΩ.
The document provides absolute maximum ratings, electrical characteristics, timing specifications, pin definitions and package information, as well as application notes for using the devices as feedback resistors in adjustable voltage‑reference circuits.
| Supply Voltage (VDD) | 2.7 V to 5.25 V |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
| Resolution | 256 taps |
| Differential Nonlinearity (DNL) | ±0.5 LSB |
| Integral Nonlinearity (INL) | ±0.5 LSB |
| Wiper Capacitance | 10 pF |
| Maximum Continuous Current (per terminal) | 1.3 mA |
The devices operate from 2.7 V up to 5.25 V supply voltage.
Each part provides 256 selectable taps.
The devices are rated from –40 °C to +85 °C.