MCP4021-103E/SN

Memory Type:	Non-Volatile
Base Part Number:	MCP4021
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	70
Temperature Coefficient (Typ):	150 ppm/°C
Tolerance:	±20%
Features:	--
Voltage - Supply:	2.7 V ~ 5.5 V
Series:	WiperLock™
Interface:	Up/Down (U/D, CS)
Resistance (Ohms):	10k
Number of Taps:	64
Number of Circuits:	1
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tube

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MCP4021-103E/SN is a single-channel, 10-bit digitally-controlled potentiometer (DCP). It offers an easy-to-use solution to adjust device outputs and configurations controlled through resistive elements and can be used to adjust the gain or other resistance-controlled parameters of an analog signal chain. It is part of the family of Digital Potentiometers (DCPs) from Microchip and offers a wide array of features such as low current dissipation and excellently low temperature coefficient properties.The MCP4021-103E/SN is composed of a conductive element with a wiper between two fixed resistance elements. The wiper of the MCP4021-103E/SN can move along the conductive element to vary the resistance between terminals A and B. The position of the wiper is determined by the values sent to the DCP from an external Digital-to-Analog Converter (DAC). To set the position of the wiper, the user sends a 10-bit value to the DCP. The total resistance of the MCP4021-103E/SN is nominally 100 kΩ, 10 kΩ and 1 kΩ respectively. The wiper of the MCP4021-103E/SN is connected to a power supply by means of a three-state I/O pin and is protected by a current limiting resistor. In order to control the attenuation ratio of the MCP4021-103E/SN, the resistance of the wiper must be known. The MCP4021-103E/SN offers the following features:• 10-bit wiper resolution for 100 kΩ, 10 kΩ, and 1 kΩ resistive elements.• Non-volatile storage memory for use in microcontroller applications. • Low temperature coefficient between -55°C and 125°C. • Low current consumption (10 μA typical). • Low-power shutdown mode. • 50 V DC maximum voltage rating. • Low power current sources for voltage operation.• High-impedance input-offset voltage matching. The application field for a MCP4021-103E/SN is wide and far reaching. It can be used to adjust instrumentation gain and calibration, signal conditioning and signal routing, and power conversion. The MCP4021-103E/SN can also be used in a wide range of automotive, industrial, medical, and consumer applications. It can be used in touch sensing applications, such as cell phones and touch screens, as well as in variable instrumentation circuitry. The working principle of the MCP4021-103E/SN is simple and straightforward. The wiper of the MCP4021-103E/SN is connected to an external Digital-to-Analog Converter (DAC). The user sends a 10-bit value to the DCP, which determines the position of the wiper and hence sets the resistance between terminals A and B. The current through the resistive element is determined by the voltage applied to the wiper. The amount of current flowing through the resistive element and the position of the wiper is used to calculate the resulting resistance between terminals A and B. In conclusion, the MCP4021-103E/SN is an excellent digital potentiometer choice for applications where precise digital control of an analog resistance value is required. The MCP4021-103E/SN is composed of a conductive element with a wiper between two fixed resistive elements and offers 10-bit resolution for 100 kΩ, 10 kΩ, and 1 kΩ resistive elements. The MCP4021-103E/SN offers low current dissipation, low temperature coefficient, low-power shutdown mode, high-impedance input-offset voltage matching and voltage operation from a low power current source, making it a perfect choice for a wide range of applications.

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