MAX5481
PRODUCTION10-Bit, Nonvolatile, Linear-Taper Digital Potentiometers
Single 1024-Tap Digital Potentiometers
- Part Models
- 4
- 1ku List Price
- Starting From $3.12
Part Details
- 1024 Tap Positions
- Power-On Recall of Wiper Position from Nonvolatile Memory
- 16-Pin (3mm x 3mm x 0.8mm) TQFN or 14-Pin TSSOP Package
- 35ppm/°C End-to-End Resistance Temperature Coefficient
- 5ppm/°C Ratiometric Temperature Coefficient
- 10kΩ and 50kΩ End-to-End Resistor Values
- Pin-Selectable SPI-Compatible Serial Interface or Up/Down Digital Interface
- 1µA (max) Standby Current
- Single +2.7V to +5.25V Supply Operation
- Dual ±2.5V Supply Operation
The MAX5481–MAX5484 10-bit (1024-tap) nonvolatile, linear-taper, programmable voltage-dividers and variable resistors perform the function of a mechanical potentiometer, but replace the mechanics with a pin-configurable 3-wire serial SPI™-compatible interface or up/down digital interface. The MAX5481/MAX5482 are 3-terminal voltage-dividers and the MAX5483/MAX5484 are 2-terminal variable resistors.
The MAX5481–MAX5484 feature an internal, nonvolatile, electrically erasable programmable read-only memory (EEPROM) that stores the wiper position for initialization during power-up. The 3-wire SPI-compatible serial interface allows communication at data rates up to 7MHz. A pin-selectable up/down digital interface is also available.
The MAX5481–MAX5484 are ideal for applications requiring digitally controlled potentiometers. Two end-to-end resistance values are available (10kΩ and 50kΩ) in a voltage-divider or a variable-resistor configuration (see the Selector Guide in the full data sheet). The nominal resistor temperature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric, making these devices ideal for applications requiring low-temperature-coefficient voltage-dividers, such as low-drift, programmable gain-amplifiers.
The MAX5481–MAX5484 operate with either a +2.7V to +5.25V single power supply or ±2.5V dual power supplies. These devices consume 400µA (max) of supply current when writing data to the nonvolatile memory and 1.0µA (max) of standby supply current. The MAX5481–MAX5484 are available in a space-saving (3mm x 3mm), 16-pin TQFN, or a 14-pin TSSOP package and are specified over the extended (-40°C to +85°C) temperature range.
Applications
- Gain and Offset Adjustment
- LCD Contrast Adjustment
- Low-Drift Programmable Gain Amplifiers
- Mechanical Potentiometer Replacement
- Pressure Sensors
Documentation
Data Sheet 1
Reliability Data 1
Design Note 1
Technical Articles 8
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX5481ETE+ | 16-LFCSP-3X3X0.75 | ||
| MAX5481ETE+T | 16-LFCSP-3X3X0.75 | ||
| MAX5481EUD+ | Thin Shrink Small-Outline Package | ||
| MAX5481EUD+T | Thin Shrink Small-Outline Package |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Digital Potentiometers (DigiPOT) 6 | ||
| MAX5494 | PRODUCTION | 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers |
| MAX5495 | PRODUCTION | 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers |
| MAX5496 | PRODUCTION | 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers |
| MAX5497 | PRODUCTION | 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers |
| MAX5498 | PRODUCTION | 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers |
| MAX5499 | PRODUCTION | 10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers |