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MCP4011-103E/SN

10kOhm 64-pos digital pot, UP/DOWN interface, NV wiper, 1uA Iq, SOIC-8

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Manufacturer Part：

MCP4011-103E/SN

Package：

SOIC-8 (4.90 x 3.90 x 1.25 mm)

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Description

Product Overview

The MCP4011-103E/SN from Microchip is a single-channel, 64-position (6-bit) digital potentiometer with 10 kOhm end-to-end resistance in an 8-pin SOIC package. It uses a simple UP/DOWN serial interface for wiper control with non-volatile wiper storage.

Key Specifications

Resistance 10 kOhm
Resolution 64 positions (6-bit)
Interface UP/DOWN (increment/decrement)
Memory Non-volatile (EEPROM wiper storage)
Supply Voltage 2.7 V to 5.5 V
Supply Current 1 uA typical (static)
Resistance Taper Linear
Operating Temperature -40°C to +125°C
Package SOIC-8 (3.9 x 4.9 mm)

Features

  • 10kOhm 64-position digital potentiometer with simple UP/DOWN interface
  • Non-volatile EEPROM wiper storage retains setting across power cycles
  • Ultra-low 1uA static current for battery-powered applications
  • Linear taper with 2.7V to 5.5V single-supply operation
  • Direct replacement for mechanical trim potentiometers

Applications

  • Power supply voltage adjustment and calibration trim
  • Op-amp gain and offset adjustment replacing mechanical trim pots
  • LCD contrast and LED brightness control in portable devices

The MCP4011-103E/SN from Microchip is a single-channel, 64-position digital potentiometer with 10 kOhm end-to-end resistance. The device uses a simple UP/DOWN serial interface with chip select, allowing wiper position to be incremented or decremented one step at a time. Non-volatile EEPROM stores the wiper position, ensuring the setting is retained across power cycles. The 10 kOhm linear taper resistor string provides 64 discrete resistance steps with approximately 157 Ohms per step. The device operates from a single 2.7V to 5.5V supply with ultra-low 1uA static current, making it ideal for battery-powered applications. The MCP4011 serves as a direct replacement for mechanical trim potentiometers, offering improved reliability, smaller size, and digital control. The -103E/SN suffix indicates 10kOhm, extended temperature, SOIC-8 package.

The MCP4011-103E/SN is a 6-bit digital potentiometer with UP/DOWN control. (1) Resistor String: The 10 kOhm resistor string consists of 63 equal-value resistive elements connected in series between terminals A and B, creating 64 tap points. Solid-state CMOS switches connect the wiper terminal W to any one of the 64 tap points. (2) UP/DOWN Interface: When CS# is low, pulses on the U/D pin increment (high) or decrement (low) the wiper position by one step per pulse. When CS# transitions from low to high, the current wiper position is stored in non-volatile EEPROM. (3) Non-Volatile Storage: On power-up, the wiper position is loaded from EEPROM, restoring the last programmed setting. The EEPROM supports over 1 million write cycles. (4) Resistance Calculation: The wiper-to-B resistance at code N is R_WB = (N/63) x R_AB + R_W, where R_AB = 10 kOhm and R_W is the wiper resistance (approximately 75 Ohms).

Pin Name Function
1 NC No connect
2 CS# Chip select (active low)
3 U/D Up/Down control input
4 VSS Ground
5 A Terminal A
6 W Wiper terminal
7 B Terminal B
8 VDD Supply voltage (2.7-5.5V)
  • Power supply output voltage calibration trim replacing mechanical pots
  • Op-amp gain and offset adjustment with non-volatile wiper storage
  • LCD contrast and LED brightness control in battery-powered devices
Manufacturer Part Number Package Notes
Microchip MCP4011-503E/SN SOIC-8 50 kOhm version
Microchip MCP4011-104E/SN SOIC-8 100 kOhm version
Microchip MCP4013-103E/SN SOIC-8 128-position (7-bit) version
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