Product Summary:
The Microchip Technology MCP402X family of non-volatile
digital potentiometers combine perfor mance and low-
power consumption in micro-size packaging, making them
ideal for a wide variety of low-power and space-constrained
applications.
The MCP402X devices are non-volatile, 6-bit (64 wiper
steps) digital potentiometers that are programmed (or
reprogrammed) through a simple up/down serial interface.
The MCP402X devices offer a variety of configurations
that simplify design while minimizing cost, package size
and pin count. The MCP4021 device offer s a voltage
divider (potentiometer) with all terminals available on pins.
The MCP4022 is a true rheostat, with both nodes of the
resistor available on pins. The MCP4023 device offers a
voltage divider, with one terminal connected to ground.
The MCP4024 device is a rheostat mode device, with
one terminal of the resistor connected to ground. These
devices offer the WiperLock™ technology, which utilizes
a unique technology that provides the user unlimited
reprogramming and locking of the wiper setting. This
feature is useful for equipment that requires factory
trimming , calibration or recalib ration. The MCP402X
family of devices are available with resistor values of 2
kΩ, 5 kΩ, 10 kΩ and 50 kΩ. These devices operate from
a single 2.7V to 5.5V supply and, while operating in the
static state, draw less than 1 µA.
The MCP402X allows customers to replace mechanical
potentiometers in their designs, resulting in added
flexibility, in-system programmability and lower lifetime
cost. In addition, engineers will find the performance and
price of the MCP402X family very attractive.
Microchip is offering a comprehensive set of support tools
including application notes, evaluation boards and user’s
guides.
Features:
• Non-volatile Memory (EEPROM)
• 64 taps – 63 resistors
• Simple Up/Down protocol
• Static Current: 1 µA max
• Automatic recall of wiper settings on power-up
• Resistance values of 2 kΩ, 5 kΩ, 10 kΩ and 50 kΩ
• Wide temperature range: -40°C to +125°C
• Secure wiper using WiperLock™ Technology
• Micropackages: SOT-23 and 3x2 DFN
Additional Information:
• AN219, “Comparing Digital Potentiometers to
Mechanical Potentiometers”, DS00219, 2000
• AN691, “Optimizing Digital Potentiometer Circuits to
Reduce Absolute and Temperature Variations”,
DS00691, 2001
• AN692 “Using a Digital Potentiometer to Optimize a
Precision Single Supply Photo Detect Circuit”,
DS00692, 2001
• AN737 “Using Digital Potentiometers to Build
Adjustable Filter”, DS00737, 2004
MCP4021/22/23/24 - Digital Potentiometer
Product Family
Microchip Technology Inc. • 2355 W. Chandler Blvd. • Chandler, AZ 85224-6199 • (480) 792-7200 • Fax (480) 792-9210
Digital Potentiometer Family
Product # of
Channels Resolution
Bits Resistance Interface INL
Lsb (typ) DNL Lsb
(typ) Static
IDD
Operating
Voltage (V) Package
MCP41010 1 8 10 SPI™ 0.25 0.25 1µA 2.7-5.5 PDIP-8, SOIC-8
MCP41050 1 8 50 SPI 0.25 0.25 1µA 2.7-5.5 PDIP-8, SOIC-8
MCP41100 1 8 100 SPI 0.25 0.25 1µA 2.7-5.5 PDIP-8, SOIC-8
MCP42010 2 8 10 SPI 0.25 0.25 1µA 2.7-5.5 PDIP-14, SOIC-14
MCP42050 2 8 50 SPI 0.25 0.25 1µA 2.7-5.5 PDIP-14, SOIC-14
MCP42100 2 8 100 SPI 0.25 0.25 1µA 2.7-5.5 PDIP-14, SOIC-14
MCP4021 1 6 2,5,10,50 U/D 0.25 0.25 1µA 2.7-5.5 2x3 DFN, MSOP-8, SOIC-8
MCP4022 1 6 2,5,10,50 U/D 0.25 0.25 1µA 2.7-5.5 SOT23-6
MCP4023 1 6 2,5,10,50 U/D 0.25 0.25 1µA 2.7-5.5 SOT23-6
MCP4024 1 6 2,5,10,50 U/D 0.25 0.25 1µA 2.7-5.5 SOT23-5
Development Tools for Analog and Interface Products from Microchip
INTERFACE PRODUCTS
MCP2140 IrDA® Standard Wireless Temperature Demo Board Demonstrates the MCP2140 IrDA® protocol controller in a data-logging application.
MCP2120/2150 Developer’s Kit Infrared products developer’s kit.
MCP215X Data Logger Demo Board Demonstrates the MCP2150 IrDA® protocol controller in a data-logging application.
MCP23X08 Evaluation Board Demonstrates simple input/output functionality of the MCP23008 and the MCP23S08.
MCP250XX CAN I/O Expanders Developer’s Kit MCP250XX CAN evaluation/development tool.
MCP2510 CAN Developer’s Kit MCP2510 CAN evaluation/development tool.
LINEAR PRODUCTS
MCP6SX2 PGA Thermistor PICtail™ Demo Board Utilizes a photodiode, op amp and PGAs in a thermistor application.
MCP6S22 PGA PICtail™ Demo Board Demonstrate firmware integration between the PIC®MCU and Microchip’s PGAs.
MCP6S2X PGA Photodiode PICtail™ Demo Board Demonstrates Microchip, opamps and PGAs in a transimpedance application.
MCP6S2X PGA Evaluation Board PGA devices interface to PIC® microcontrollers (MCU), providing selection of input channels and
gains to evaluate device performance.
MIXED SIGNAL PRODUCTS
Mixed Signal PICtail™ Evaluation Board Enables concise evaluation of several Microchip’s DACs, ADCs, LDOs, VREFs and op amps.
POWER MANAGEMENT PRODUCTS
MCP1601 Buck Regulator Evaluation Board Demonstrates Microchip’s MCP1601 synchronous buck regulator.
MCP1612 Synchronous Buck Regulator Evaluation Board Features Microchip’s 1A 1.4MHz synchronous buck regulator in two buck converter applications.
MCP1630 + 12V in Dual Output Buck Converter Reference Design Dual output programmable power supply capable of 20A per output.
MCP1630 NiMH Battery Charger Demo Board Combines MCP1630 and PIC16F818 to develop a NiMH battery charger w/ fuel gauge capability.
MCP1650 Boost Controller Evaluation Board Demonstrates the MCP165X product family in two high-power, boost-converter applications.
MCP7382X Li-Ion Battery Charger Evaluation Board Features three circuits utilizing the MCP73826, MCP73827 and MCP73828 devices.
MCP7384X Li-Ion Battery Charger Evaluation Board Features three circuits utilizing the MCP73841, MCP73842 and MCP73843 devices.
MCP7386X Li-Ion Battery Charger Evaluation Board Evaluate simple, stand-alone, linear charging of Lithium-Ion/Lithium-Polymer battery packs.
SOT-23-3 Voltage Supervisor Evaluation Board Many SOT23-3 devices may be evaluated using this board.
SOT23-5/6 Voltage Supervisor Evaluation Board Many SOT-23-5/6 devices may be evaluated using this board.
THERMAL MANAGEMENT PRODUCTS
MCP9800 Temp Sensor PICtail™ Demo Board Interfacing the MCP9800 to a PICmicro® MCU using PICkit™ 1 Flash Starter Kit as a platform.
TC64X/TC64XB Fan Speed Controller Demo Board Evaluation/prototyping brushless DC fan control circuits using the TC64X BDC fan controllers.
TC650 Fan Controller Demo Board Allows user to quickly prototype fan control circuits with TC650 or TC651 PWM fan control ICs.
TC72 Digital Temperature Sensor Demonstrates how to interface the TC72 temperature sensor to a microcontroller.
TC74 Serial Digital Thermal Sensor Demo Board Demo board for TC74 digital thermal sensor.
TC77 Thermal Sensor PICtail™ Demo Board Demonstrates how to interface the TC77 to a microcontroller.
TC1047A Temp-to-Voltage Converter PICtail™ Demo Board Demonstrates how to interface the TC1047A to a microcontroller.
Visit our web site at www.microchip.com for additional product information and your local sales office.
Information subject to change. The Microchip name and logo are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries.
WiperLock, PICtail and PICkit are trademarks of Microchip Technology Inc. in the U.S.A. IrDA is a registered trademark of the Infrared Data Association.
All other trademarks mentioned herein are property of their respective owners.
© 2005 Microchip Technology Inc. Printed in the U.S.A. All rights reserved. DS21940A 3/2005
