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MAX5391：Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers

Industry's First 1.7V Supply, 256-Step Dual Digital Potentiometers

The MAX5391/MAX5393 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 +1.7V 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 MAX5391/MAX5393 make the devices uniquely suitable for the portable consumer market and battery backup industrial applications. The MAX5391/MAX5393 include two digital potentiometers in a voltage-divider configuration. The MAX5391/MAX5393 are specified over the -40°C to +125°C automotive temperature range and are available in a 16-pin, 3mm x 3mm TQFN and a 14-pin TSSOP package, respectively.

Key Features Dual, 256-Tap Linear Taper Positions Single +1.7V to +5.5V Supply Operation Low 12µA Quiescent Supply Current 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance Values SPI-Compatible Interface Wiper Set to Midscale on Power-Up -40°C to +125°C Operating Temperature Range

MAX5391, MAX5393: Functional Diagram Applications/Uses Adjustable Voltage References/Linear Regulators Low-Voltage Battery Applications Mechanical Potentiometer Replacement Offset and Gain Control Portable Electronics

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5386MEVMINIQU
• MAX5391LEVMINIQU
• MAX5391NEVMINIQU
• MAX5393EVMINIQU
• MAX5388EVMINIQU

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