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Product Detailed Parameters
- Description：IC DGT POT 100KOHM 256TAP 10UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Taper：Linear
- Configuration：Potentiometer, Rheostat
- Number of Circuits：2
- Number of Taps：256
- Resistance (Ohms)：100k
- Interface：SPI
- Memory Type：Volatile
- Voltage - Supply：2.6V ~ 5.5V
- Features：-
- Tolerance：±25%
- Temperature Coefficient (Typ)：35ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：10-uMAX/uSOP
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Operating Temperature：-40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ)：250
- Grade：-
- Qualification：-
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Overview
The MAX5388NAUB+ is a dual, 256-tap, volatile, low-voltage linear taper digital potentiometer manufactured by Analog Devices / Maxim Integrated. It operates from a single +2.6V to +5.5V power supply with a quiescent current of less than 1µA. The device features an SPI-compatible interface and offers three end-to-end resistance values: 10kΩ, 50kΩ, and 100kΩ. Specifically, the NAUB+ variant provides a 100kΩ resistance in a 10-pin µMAX package. It includes one digital potentiometer configured as a voltage divider and another as a variable resistor. The component supports an extended operating temperature range from -40°C to +125°C.
Feature Summary
- Dual 256-Tap Linear Taper Digital Potentiometers
- SPI-Compatible 3-Wire Serial Interface
- Low Supply Voltage Operation (+2.6V to +5.5V)
- Extended Temperature Range (-40°C to +125°C)
Applications
- Low-Voltage Battery Applications
- Portable Electronics
- Mechanical Potentiometer Replacement
- Offset and Gain Control
- Adjustable Voltage References/Linear Regulators
Procurement Notes
Verify the specific suffix 'NAUB+' against the manufacturer's ordering information to confirm the 100kΩ resistance value and 10-pin µMAX package configuration. Ensure that the volatile memory characteristic aligns with system requirements, as wiper positions reset upon power loss. Confirm RoHS compliance status based on the '+' designation in the part number.
Selection Notes
Select the MAX5388NAUB+ when a dual digital potentiometer with mixed configurations (one voltage-divider and one variable-resistor) is required. Choose this 100kΩ variant over the LAUB+ (10kΩ) or MAUB+ (50kΩ) versions if higher resistance values are necessary for the application. Verify that the 10-pin µMAX package dimensions fit the PCB layout constraints compared to the 16-pin TQFN options available in the MAX5386 series.
Part Context
The MAX5388NAUB+ belongs to the MAX5386/MAX5388 family of dual digital potentiometers. While the MAX5386 offers two voltage-divider configurations, the MAX5388 provides one voltage-divider and one variable-resistor configuration. This family is designed for portable consumer markets and battery-backed industrial applications due to its small package size and low power consumption.
Replacement Considerations
The MAX5386NATE+ serves as a functional alternative within the same family but utilizes a 16-pin TQFN package and provides two voltage-divider configurations instead of the MAX5388's mixed configuration. Direct pin-for-pin replacement requires verifying the package footprint compatibility between the 10-pin µMAX and other available packages.
