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Product Detailed Parameters
- Description：IC DGTL POT 50KOHM 32TAP 8UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube,Tube
- Taper：Linear
- Configuration：Potentiometer
- Number of Circuits：1
- Number of Taps：32
- Resistance (Ohms)：50k
- Interface：Up/Down (U/D, INC, CS)
- Memory Type：Volatile
- Voltage - Supply：2.7V ~ 5.5V
- Features：-
- Tolerance：±25%
- Temperature Coefficient (Typ)：50ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：8-uMAX/uSOP
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Operating Temperature：-40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ)：400
- Grade：-
- Qualification：-
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Overview
The MAX5160LEUA+ is a low-power digital potentiometer featuring 32 tap positions and a nominal resistance of 50kΩ. It operates on a single supply voltage ranging from +2.7V to +5.5V with a typical supply current of 10µA. The device utilizes a 3-wire serial interface (CS, INC, U/D) for wiper control and offers ±25% end-to-end resistance tolerance with a 400Ω wiper resistance. Packaged in an 8-pin µMAX format, it supports extended industrial temperatures from -40°C to +85°C.
Feature Summary
- 32 Tap Positions: Provides precise digital adjustment between the H and L terminals.
- Low Power Consumption: Operates with a maximum supply current of 10µA at +5V.
- Glitchless Switching: Ensures stable operation during transitions between resistor taps.
- Power-On Reset: Automatically sets the wiper to midscale (position 16) upon power-up.
Applications
- LCD Screen Adjustment
- Volume Control
- Mechanical Potentiometer Replacement
Procurement Notes
Verify the component against official Maxim Integrated datasheets to confirm pinout compatibility and electrical specifications. Ensure the ordering suffix matches the required resistance value and package type. Cross-reference with authorized distributors to validate authenticity and traceability before procurement.
Selection Notes
Select the MAX5160LEUA+ when a 50kΩ digital potentiometer is required in an 8-pin µMAX package. Consider the MAX5160MEUA+ or MAX5160NEUA+ if different resistance values (100kΩ or 200kΩ) are needed. Verify that the 3-wire serial interface aligns with the system's microcontroller capabilities.
Part Context
The MAX5160LEUA+ belongs to the MAX5160/MAX5161 family of low-power digital potentiometers. This series provides a direct replacement for mechanical potentiometers in applications requiring digitally controlled variable resistance. The LEUA variant specifically denotes the 50kΩ resistance option within the 8-pin µMAX package lineup.
Replacement Considerations
Direct replacements include other variants within the MAX5160 family, such as the MAX5160MEUA+ (100kΩ) or MAX5160NEUA+ (200kΩ), provided the resistance value meets the circuit requirements. Ensure the replacement maintains the same 8-pin µMAX footprint and 3-wire serial interface compatibility.
FAQ
What is the function of the Power-On Reset feature?
The Power-On Reset circuitry automatically sets the wiper position to midscale (position 16) when power is applied, ensuring a known initial state.
How does the MAX5160 handle switching between taps?
The device features glitchless switching, which prevents transient spikes or glitches when moving the wiper between different resistor tap positions.
What is the resolution of the MAX5160LEUA+?
The MAX5160LEUA+ has 32 tap positions, providing a resolution of approximately 3% per step across the full resistance range.
