MCP4011/2/3/4
Low-Cost 64-Step Volatile Digital POT
Package Types
Features
MCP4011
MCP4012
• Volatile Digital Potentiometer in SOT-23, SOIC,
MSOP and DFN packages
SOIC, MSOP, DFN
Potentiometer
SOT-23-6
Rheostat
• 64 Taps: 63 Resistors with Taps to terminal A and
terminal B
V
V
A
8
7
6
5
U/D
1
2
3
4
1
2
3
6
5
4
DD
DD
A
W
• Simple Up/Down (U/D) Protocol
V
V
W
CS
NC
B
SS
A
SS
• Power-on Recall of Default Wiper Setting
A
B
U/D
B
- Custom POR wiper settings available
(contact factory)
W
W
CS
MCP4014
• Resistance Values: 2.1 kΩ, 5 kΩ, 10 kΩ or 50 kΩ
• Low Tempco:
MCP4013
SOT-23-5
Rheostat
SOT-23-6
Potentiometer
- 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:
W
5
V
DD
A
V
A
1
2
3
1
2
3
6
5
4
DD
W
V
V
W
CS
SS
SS
B
A
W
B
U/D
CS
U/D
4
Block Diagram
- 1.8V to 5.5V - Device Operation
A
- 2.7V to 5.5V - Resistor Characteristics
Specified
V
DD
Power-Up
and
Brown-Out
Control
• Extended Temperature Range: -40°C to +125°C
• Wide Bandwidth (-3 dB) Operation:
- 4 MHz (typ.) for 2.1 kΩ device
V
SS
2-Wire
Interface
and
Control
Logic
W
CS
Description
U/D
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.
B
Device Features
Resistance (typical)
Wiper
VDD
Wiper
Configuration
Memory PORWiper
# of
Steps
Device
Operating
Type
Setting
Range (2)
Options (kΩ)
(Ω)
MCP4011 Potentiometer(1)
MCP4012 Rheostat
MCP4013 Potentiometer
MCP4014 Rheostat
RAM
RAM
RAM
RAM
Mid-Scale 2.1, 5.0, 10.0, 50.0
Mid-Scale 2.1, 5.0, 10.0, 50.0
Mid-Scale 2.1, 5.0, 10.0, 50.0
Mid-Scale 2.1, 5.0, 10.0, 50.0
75
75
75
75
64 1.8V to 5.5V U/D
64 1.8V to 5.5V U/D
64 1.8V to 5.5V U/D
64 1.8V to 5.5V U/D
No
No
No
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