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Product Detailed Parameters
- Description：32-TAP FLEAPOT, 2-WIRE DIGIPOT
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Taper：Linear
- Configuration：Rheostat
- Number of Circuits：1
- Number of Taps：32
- Resistance (Ohms)：50k
- Interface：I2C, Up/Down (U/D, CS)
- Memory Type：Volatile
- Voltage - Supply：2.7V ~ 5.5V
- Features：-
- Tolerance：-
- Temperature Coefficient (Typ)：35ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Operating Temperature：-40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ)：-
- Grade：-
- Qualification：-
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Overview
The MAX5463EXK is a single-channel digital potentiometer featuring 32-tap linear resistance adjustment. It offers a nominal resistance of 50kΩ with a tolerance of ±25% and a temperature coefficient of 35 ppm/°C. The device operates on a single supply voltage ranging from +2.7V to +5.5V, consuming only 24µA of supply current. It utilizes a 2-wire serial interface for control and includes power-on reset functionality that defaults the wiper to midscale. The component is housed in an SC-70-5 surface-mount package.
Feature Summary
- 32-Tap Linear Digital Potentiometer with 50kΩ Nominal Resistance
- Ultra-Low Supply Current of 24µA at +5V
- 2-Wire Serial Interface for Up/Down Control
- Power-On Reset to Midscale Position
Applications
- LCD Screen Brightness Adjustment
- Volume Control in Audio Circuits
- Mechanical Potentiometer Replacement
- Gain Adjustment in Signal Conditioning
- Line Impedance Matching
Procurement Notes
Verify the specific suffix EXK corresponds to the SC-70-5 package and tape-and-reel delivery format when sourcing. Confirm RoHS compliance status (+) if lead-free construction is required for the assembly process. Check manufacturer obsolescence notices as older Maxim Integrated part numbers may have limited availability or replacement recommendations.
Selection Notes
Select this model over other MAX546x variants based on the required 50kΩ resistance value; the family also offers 10kΩ and 100kΩ options. Ensure the application requires volatile memory, as values are lost upon power cycle. Verify that the 2-wire serial interface aligns with the system's microcontroller capabilities, as it differs from I2C-based alternatives like the DS1805 series.
Part Context
This component belongs to the MAX5460–MAX5468 FleaPoT family of digital potentiometers. These devices are designed to replace mechanical potentiometers in space-constrained applications. The MAX5463 specifically provides the 50kΩ resistance option within the 32-tap configuration, distinct from the 10kΩ (MAX5466) and 100kΩ (MAX5460) counterparts.
Replacement Considerations
Direct pin-compatible replacements within the same family include MAX5464EXK (same specs, different suffix/package variant) or MAX5465EXK. For higher resolution needs, consider the MAX5481 series. Cross-reference with DS1805 series only if I2C interface compatibility can be accommodated via software changes.
