MCP4011/2/3/4
Low-Cost 64-Step Volatile Digital POT
Package Types
• Volatile Digital Potentiometer in SOT-23, SOIC,
MSOP and DFN packages
• 64 Taps: 63 Resistors with Taps to terminal A and
terminal B
• Simple Up/Down (U/D) Protocol
• Power-on Recall of Default Wiper Setting
- Custom POR wiper settings available
(contact factory)
• Resistance Values: 2.1 kΩ, 5 kΩ, 10 kΩ or 50 kΩ
• Low Tempco:
- Absolute (Rheostat): 50 ppm (0°C to 70°C typ.)
- Ratiometric (Potentiometer): 10 ppm (typ.)
• Low Wiper Resistance: 75Ω (typ.)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Low-Power Operation: 1 µA Max Static Current
• Wide Operating Voltage Range:
- 1.8V to 5.5V - Device Operation
- 2.7V to 5.5V - Resistor Characteristics
Specified
• Extended Temperature Range: -40°C to +125°C
• Wide Bandwidth (-3 dB) Operation:
- 4 MHz (typ.) for 2.1 kΩ device
Description
MCP4011
MCP4012
SOIC, MSOP, DFN
Potentiometer
SOT-23-6
Rheostat
VDD 1
VSS 2
A 3
8 U/D
B
W
W 4
VSS 2
6 B
U/D 3
A
6 A
W
5 W
4 CS
B
5 CS
MCP4013
MCP4014
SOT-23-6
Potentiometer
SOT-23-5
Rheostat
VDD 1
VSS 2
U/D 3
6 A
A
W
B
VDD 1
5 W
VSS 2
4 CS
U/D 3
5 W
W
B
A
4 CS
Block Diagram
A
VDD
VSS
CS
The MCP4011/2/3/4 devices are volatile, 6-bit Digital
Potentiometers that can be configured as either a
potentiometer or rheostat. The wiper setting is
controlled through a simple Up/Down (U/D) serial
interface.
7 NC
A
VDD 1
U/D
Power-Up
and
Brown-Out
Control
Wiper Register
(Resistor Array)
Features
2-Wire
Interface
and
Control
Logic
W
B
Device
Wiper
Configuration
Memory POR Wiper
Type
Setting
Options (kΩ)
# of
Wiper Steps
(Ω)
VDD
Operating
Range (2)
WiperLock™
Technology
Resistance (typical)
Control
Interface
Device Features
MCP4011 Potentiometer (1)
RAM
Mid-Scale
2.1, 5.0, 10.0, 50.0
75
64
1.8V to 5.5V U/D
No
MCP4012
Rheostat
RAM
Mid-Scale
2.1, 5.0, 10.0, 50.0
75
64
1.8V to 5.5V U/D
No
MCP4013
Potentiometer
RAM
Mid-Scale
2.1, 5.0, 10.0, 50.0
75
64
1.8V to 5.5V U/D
No
MCP4014
Rheostat
RAM
Mid-Scale
2.1, 5.0, 10.0, 50.0
75
64
1.8V to 5.5V U/D
No
Note 1: Floating either terminal (A or B) allows the device to be used in Rheostat mode.
2: Analog characteristics (resistor) tested from 2.7V to 5.5V.
.
© 2006 Microchip Technology Inc.
DS21978C-page 1
