MAX5386
Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers
Dual, 256-Step, Digital Potentiometers with a 2.6V Supply in a 3mm x 3mm TQFN
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Key Features
Applications/Uses
| Steps | 256 |
| # Potentiometers | 2 |
| Control Interface | 3-Wire Serial SPI |
| Taper | Linear |
| Wiper Memory | Volatile |
| REND-TO-END (kΩ) | 10 50 100 |
| Res. Tol. (%) | 25 |
| Temp. Coeff. (ppm/°C) (typ) | 35 |
| Wiper Resistance (Ω) (typ) | 150 |
| ICC @5V (µA) (max) | 1 |
| Package/Pins | TQFN/16 |
| Budgetary Price (See Notes) | 1.07 |
Simplified Block Diagram
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Parameters
| Steps | 256 |
| # Potentiometers | 2 |
| Control Interface | 3-Wire Serial SPI |
| Taper | Linear |
| Wiper Memory | Volatile |
| REND-TO-END (kΩ) | 10 50 100 |
| Res. Tol. (%) | 25 |
| Temp. Coeff. (ppm/°C) (typ) | 35 |
| Wiper Resistance (Ω) (typ) | 150 |
| ICC @5V (µA) (max) | 1 |
| Package/Pins | TQFN/16 |
| Budgetary Price (See Notes) | 1.07 |
Key Features
- Dual, 256-Tap, Linear Taper Positions
- Single +2.6V to +5.5V Supply Operation
- Low (< 1µA) Quiescent Supply Current
- 10kΩ, 50kΩ, 100kΩ End-to-End Resistance Values
- SPI-Compatible Interface
- Power-On Sets Wiper to Midscale
- -40°C to +125°C Operating Temperature Range
Applications/Uses
- Adjustable Voltage References/Linear Regulators
- Low-Voltage Battery Applications
- Mechanical Potentiometer Replacement
- Offset and Gain Control
- Portable Electronics
Description
The MAX5386/MAX5388 dual, 256-tap, volatile, low- voltage linear taper digital potentiometers offer three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Operating from a single +2.6V to +5.5V power supply these devices provide a low 35ppm/°C end-to-end temperature coefficient. The devices feature an SPI interface.
The small package size, low supply voltage, low supply current, and automotive temperature range of the MAX5386/MAX5388 make the devices uniquely suitable for the portable consumer market and battery-backup industrial applications.
The MAX5386 includes two digital potentiometers in a voltage-divider configuration. The MAX5388 includes one digital potentiometer in a voltage-divider configuration and one digital potentiometer in a variable-resistor configuration. The MAX5386/MAX5388 are specified over an extended -40°C to +125°C temperature range and are available in 16-pin, 3mm x 3mm TQFN or 10-pin, 3mm x 5mm µMAX® packages, respectively.
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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