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Data Converters 
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Digital Potentiometers
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MAX5417L, MAX5417M, MAX5417N, MAX5417P
256-Tap, Nonvolatile, I²C-Interface, Digital Potentiometers
Industry's Smallest 256-Tap Digital Potentiometers Fit in a 3mm x 3mm TDFN
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Key Features
Applications/Uses
Parametric specs for Digital Potentiometers
| Steps | 256 |
| # Potentiometers | 1 |
| Control Interface | 2-Wire Serial |
| Taper | Linear |
| Wiper Memory | Non-Volatile |
| REND-TO-END (kΩ) | 50 |
| Temp. Coeff. (ppm/°C) (typ) | 50 |
| Wiper Resistance (Ω) (typ) | 325 |
| ICC @5V (µA) (max) | 1 |
| Package/Pins | TDFN/8 |
| Budgetary Price (See Notes) | 2.21 |
View Less
Simplified Block Diagram
Technical Docs
| Data Sheet | 256-Tap, Nonvolatile, I²C-Interface, Digital Potentiometers | Aug 18, 2010 | |
| App Note | Using an Analog Voltage to Control a Digital Potentiometer | ||
| App Note | HFTA-08.0: Receivers and Transmitters in DWDM Systems |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Digital Potentiometers
| Steps | 256 |
| # Potentiometers | 1 |
| Control Interface | 2-Wire Serial |
| Taper | Linear |
| Wiper Memory | Non-Volatile |
| REND-TO-END (kΩ) | 50 |
| Temp. Coeff. (ppm/°C) (typ) | 50 |
| Wiper Resistance (Ω) (typ) | 325 |
| ICC @5V (µA) (max) | 1 |
| Package/Pins | TDFN/8 |
| Budgetary Price (See Notes) | 2.21 |
Key Features
- Power-On Recall of Wiper Position from Nonvolatile Memory
- Tiny 3mm x 3mm 8-Pin TDFN Package
- 35ppm/°C End-to-End Resistance Temperature Coefficient
- 5ppm/°C Ratiometric Temperature Coefficient
- 50kΩ/100kΩ/200kΩ Resistor Values
- Fast I²C-Compatible Serial Interface
- 500nA (typ) Static Supply Current
- Single-Supply Operation: +2.7V to +5.25V
- 256 Tap Positions
- ±0.5 LSB DNL in Voltage-Divider Mode
- ±0.5 LSB INL in Voltage-Divider Mode
- EV Kit Available
Applications/Uses
- Liquid-Crystal Display (LCD) Contrast Control
- Low-Drift Programmable-Gain Amplifiers
- Mechanical Potentiometer Replacements
- Volume Control
Description
The MAX5417/MAX5418/MAX5419 nonvolatile, linear-taper, digital potentiometers perform the function of a mechanical potentiometer by replacing the mechanics with a simple 2-wire digital interface, allowing communication with multiple devices. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points.
The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The fast-mode I²C-compatible serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing interconnection complexity in many applications. Each device is available with one of four factory-preset addresses (see the Ordering Information/Selector Guide in the full data sheet) and features an address input for a total of eight unique address combinations.
The MAX5417/MAX5418/MAX5419 provide three nominal resistance values: 50kΩ (MAX5417), 100kΩ (MAX5418), or 200kΩ (MAX5419). The nominal resistor temperature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gain-amplifier circuit configurations.
The MAX5417/MAX5418/MAX5419 are available in a 3mm x 3mm 8-pin TDFN package, and are specified over the extended -40°C to +85°C temperature range.
The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The fast-mode I²C-compatible serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing interconnection complexity in many applications. Each device is available with one of four factory-preset addresses (see the Ordering Information/Selector Guide in the full data sheet) and features an address input for a total of eight unique address combinations.
The MAX5417/MAX5418/MAX5419 provide three nominal resistance values: 50kΩ (MAX5417), 100kΩ (MAX5418), or 200kΩ (MAX5419). The nominal resistor temperature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gain-amplifier circuit configurations.
The MAX5417/MAX5418/MAX5419 are available in a 3mm x 3mm 8-pin TDFN package, and are specified over the extended -40°C to +85°C temperature range.
Simplified Block Diagram
MAX5417, MAX5417L, MAX5417M, MAX5417N, MAX5417P, MAX5418, MAX5419: Functional Diagram
Technical Docs
| Data Sheet | 256-Tap, Nonvolatile, I²C-Interface, Digital Potentiometers | Aug 18, 2010 | |
| App Note | Using an Analog Voltage to Control a Digital Potentiometer | ||
| App Note | HFTA-08.0: Receivers and Transmitters in DWDM Systems |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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