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© Semiconductor Components Industries, LLC, 2012
January, 2012 − Rev. 12
1 Publication Order Number:
CAT5110/D
CAT5110, CAT5118,
CAT5119, CAT5123,
CAT5124, CAT5125
32-Tap Digitally
Programmable
Potentiometers with 2-Wire
Interface
Description
CAT5110/18/19/23/24/25 linear−taper digitally programmable
potentiometers perform the same function as a mechanical
potentiometer or a variable resistor. These devices consist of a fixed
resistor and a wiper contact with 32−tap points that are digitally
controlled through a 2−wire up/down serial interface.
The CAT5110 and CAT5125 are configured as potentiometers. The
CAT5118/19/23/24 are configured as variable resistors.
Three resistance values are available: 10 kW, 50 kW and 100 kW. All
devices are available in space−saving 5−pin and 6−pin SOT−23
packages. The CAT5110/18/19 are also available in the SC−70
package.
Features
• 0.3 mA Ultra−low Standby Current
• Single−supply Operation: 2.7 V to 5.5 V
• Glitchless Switching between Resistor Taps
• Power−on Reset to Midscale
• 2−wire Up/Down Serial Interface
• Resistance Values: 10 kW, 50 kW and 100 kW
• Low Wiper Resistance: 80 W for CAT5123, CAT5124, CAT5125
• CAT5110, CAT5118, CAT5119 Available in SC−70
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• LCD Screen Adjustment
• Volume Control
• Mechanical Potentiometer Replacement
• Gain Adjustment
• Line Impedance Matching
http://onsemi.com
SC−70
SD SUFFIX
CASE 419AD
PIN CONNECTIONS
(Top Views)
SOT−23
TB SUFFIX
CASE 527AJ
SC−70
SD SUFFIX
CASE 419AC
SOT−23
TB SUFFIX
CASE 527AH
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
GND
1
6H
2
3
4
W
5
CAT5110
CAT5125
SOT−23
GND
16
H
2
34
W
5
CAT5110
SC−70
GND
H
2
CAT5118
CAT5123
15
34
GND
H
2
CAT5118
15
34
GND
H
L
5
34
GND
16H
2
L
5
CAT5119
CAT5124
34
2
CAT5119
16
U/D
V
DD
CS
CS
V
DD
U/D
SOT−23
SC−70
SOT−23
SC−70
CS
CS
V
DD
V
DD
U/D
CS
U/D
V
DD
CS
U/D U/D
V
DD
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