Digital Potentiometer Design Guide
9
Digital Potentiometer Solutions
Devices with SPI Interface
Device
Serial
Interface
V
olatile
(V
ol)
Non-V
olatile
(NV)
#
RS
Resistor
s
Rs
Ω
(typ.)
Zero-Scale/
Full-Scale
(3)
#
of
Channels
WiperLock
Technolog
y
HV
Commands
Shutdown
Mode
Configuration
V
oltage
Range
#
of
Pins
P
ackages
IDD
max
(μA)
(5)
MCP4131(2)
SPI
Vol
128
39.1/78.1/390.6/781.3
Y/Y
1
N
Y(9)
Y(8)
Pot
1.8V to 5.5V(6)
8
PDIP, SOIC, MSOP, DFN
5
MCP4132(2)
SPI
Vol
128
39.1/78.1/390.6/781.3
Y/Y
1
N
Y(9)
Y(8)
Rheo
1.8V to 5.5V(6)
8
PDIP, SOIC, MSOP, DFN
5
MCP4141(2)
SPI
NV
128
39.1/78.1/390.6/781.3
Y/Y
1
Y
Y(8)
Pot
2.7V to 5.5V
8
PDIP, SOIC, MSOP, DFN
5
MCP4142(2)
SPI
NV
128
39.1/78.1/390.6/781.3
Y/Y
1
Y
Y(8)
Rheo
2.7V to 5.5V
8
PDIP, SOIC, MSOP, DFN
5
MCP4151(2)
SPI
Vol
256
19.5/39.1/195.3/390.6
Y/Y
1
N
Y(9)
Y(8)
Pot
1.8V to 5.5V(6)
8
PDIP, SOIC, MSOP, DFN
5
MCP4152(2)
SPI
Vol
256
19.5/39.1/195.3/390.6
Y/Y
1
N
Y(9)
Y(8)
Rheo
1.8V to 5.5V(6)
8
PDIP, SOIC, MSOP, DFN
5
MCP4161(2)
SPI
NV
256
19.5/39.1/195.3/390.6
Y/Y
1
Y
Y(8)
Pot
2.7V to 5.5V
8
PDIP, SOIC, MSOP, DFN
5
MCP4162(2)
SPI
NV
256
19.5/39.1/195.3/390.6
Y/Y
1
Y
Y(8)
Rheo
2.7V to 5.5V
8
PDIP, SOIC, MSOP, DFN
5
MCP4231(2)
SPI
Vol
128
39.1/78.1/390.6/781.3
Y/Y
2
N
Y(9)
Y(8)
Pot
1.8V to 5.5V(6)
14, 16
PDIP, SOIC, TSSOP, QFN
5
MCP4232(2)
SPI
Vol
128
39.1/78.1/390.6/781.3
Y/Y
2
N
Y(9)
Y(8)
Rheo
1.8V to 5.5V(6)
10
MSOP, DFN
5
MCP4241(2)
SPI
NV
128
39.1/78.1/390.6/781.3
Y/Y
2
Y
Y(8)
Pot
2.7V to 5.5V
14, 16
PDIP, SOIC, TSSOP, QFN
5
MCP4242(2)
SPI
NV
128
39.1/78.1/390.6/781.3
Y/Y
2
Y
Y(8)
Rheo
2.7V to 5.5V
10
MSOP, DFN
5
MCP4251(2)
SPI
Vol
256
19.5/39.1/195.3/390.6
Y/Y
2
N
Y(9)
Y(8)
Pot
1.8V to 5.5V(6)
14, 16
PDIP, SOIC, TSSOP, QFN
5
MCP4252(2)
SPI
Vol
256
19.5/39.1/195.3/390.6
Y/Y
2
N
Y(9)
Y(8)
Rheo
1.8V to 5.5V(6)
10
MSOP, DFN
5
MCP4261(2)
SPI
NV
256
19.5/39.1/195.3/390.6
Y/Y
2
Y
Y(8)
Pot
2.7V to 5.5V
14, 16
PDIP, SOIC, TSSOP, QFN
5
MCP4262(2)
SPI
NV
256
19.5/39.1/195.3/390.6
Y/Y
2
Y
Y(8)
Rheo
2.7V to 5.5V
10
MSOP, DFN
5
MCP4331(2)
SPI
Vol
128
39.1/78.1/390.6/781.3
Y/Y
4
N
Y(9)
Y(8)
Pot
1.8V to 5.5V(6)
20
TSSOP, QFN
5
MCP4332(2)
SPI
Vol
128
39.1/78.1/390.6/781.3
Y/Y
4
N
Y(9)
Y(8)
Rheo
1.8V to 5.5V(6)
14
TSSOP
5
MCP4341(2)
SPI
NV
128
39.1/78.1/390.6/781.3
Y/Y
4
Y
Y(8)
Pot
2.7V to 5.5V
20
TSSOP, QFN
5
MCP4342(2)
SPI
NV
128
39.1/78.1/390.6/781.3
Y/Y
4
Y
Y(8)
Rheo
2.7V to 5.5V
14
TSSOP
5
MCP4351(2)
SPI
Vol
256
19.5/39.1/195.3/390.6
Y/Y
4
N
Y(9)
Y(8)
Pot
1.8V to 5.5V(6)
20
TSSOP, QFN
5
MCP4352(2)
SPI
Vol
256
19.5/39.1/195.3/390.6
Y/Y
4
N
Y(9)
Y(8)
Rheo
1.8V to 5.5V(6)
14
TSSOP
5
MCP4361(2)
SPI
NV
256
19.5/39.1/195.3/390.6
Y/Y
4
Y
Y(8)
Pot
2.7V to 5.5V
20
TSSOP, QFN
5
MCP4362(2)
SPI
NV
256
19.5/39.1/195.3/390.6
Y/Y
4
Y
Y(8)
Rheo
2.7V to 5.5V
14
TSSOP
5
MCP41010
SPI
Vol
256
39.1
Y/N(4)
1
N
Pot
2.7V to 5.5V
8
PDIP, SOIC
1
MCP41050
SPI
Vol
256
195.3
Y/N(4)
1
N
Pot
2.7V to 5.5V
8
PDIP, SOIC
1
MCP41100
SPI
Vol
256
390.6
Y/N(4)
1
N
Pot
2.7V to 5.5V
8
PDIP, SOIC
1
MCP42010
SPI
Vol
256
39.1
Y/N(4)
2
N
Y
Pot
2.7V to 5.5V
14
PDIP, SOIC, TSSOP
1
MCP42050
SPI
Vol
256
195.3
Y/N(4)
2
N
Y
Pot
2.7V to 5.5V
14
PDIP, SOIC, TSSOP
1
MCP42100
SPI
Vol
256
390.6
Y/N(4)
2
N
Y
Pot
2.7V to 5.5V
14
PDIP, SOIC, TSSOP
1
1. Resistor options are: -202 (2.1 kΩ), -502 (5.0 kΩ), -103 (10.0 kΩ), and -503 (50.0 kΩ).
2. Resistor options are: -502 (5.0 kΩ), -103 (10.0 kΩ), 503 (50.0 kΩ), and -104 (100.0 kΩ).
3. Zero-scale allows the wiper to “directly” connect to Terminal B, while full-scale allows the wiper to “directly” connect to Terminal A.
4. There is one RS resistor between the maximum wiper value and Terminal A.
5. This current is with the serial interface inactive, and not during an EEPROM write cycle (for non-volatile devices).
6. The serial interface has been tested to 1.8V, the device’s analog characteristics (resistor) have been tested from 2.7V to 5.5V. Review the device’s characterization graphs for information on analog performance between
1.8Vand 2.7V.
7. One of the terminal pins (A or B) is internally connected to ground, due to the limitation of the number of pins on the package.
8. Shutdown support via software (TCON register(s)). If device has SHDN pin, software shutdown also fuctions.
9. High voltage command support is for compatibility with the corresponding non-volatile version of the device.