CAT5110 Datasheet, PDF (1/15 Pages) Catalyst Semiconductor – 32-Tap MiniPot Digitally Programmable Potentiometers with 2-Wire Interface

CAT5110, CAT5118, CAT5119
CAT5123, CAT5124, CAT5125
32-Tap MiniPot™ Digitally Programmable
Potentiometers with 2-Wire Interface
FEATURES
„ 0.3µA Ultra-low standby current
„ Single-supply operation: 2.7V to 5.5V
„ Glitchless switching between resistor taps
„ Power-on reset to midscale
„ 2-wire up/down serial interface
„ Resistance values: 10kΩ, 50kΩ and 100kΩ
„ Low wiper resistance: 80Ω for
CAT5123, CAT5124, CAT5125
„ CAT5110, CAT5118, CAT5119 available in SC-70
APPLICATIONS
„ LCD screen adjustment
„ Volume control
„ Mechanical potentiometer replacement
„ Gain adjustment
„ Line impedance matching
For Ordering Information details, see page 11.
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: 10kΩ, 50kΩ and
100kΩ. 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.
FUNCTIONAL DIAGRAM
H
V_DD
GND
CS
W
U/D
PIN CONFIGURATION
SOT-23
V_DD 1
6H
SOT-23
V_DD 1
5H
SOT-23
V_DD 1
6H
GND 2
5W
CAT5110
U/D 3 CAT5125 4 CS
GND 2
CAT5118
U/D 3 CAT5123
GND 2
5L
CAT5119
4 CS U/D 3 CAT5124 4 CS
SC-70
V_DD 1
6H
SC-70
SC-70
V_DD 1
5H
V_DD 1
6H
GND 2
5 W GND 2
GND 2
5L
U/D 3 ^CAT5110 4 CS U/D 3 ^CAT5118 4 CS U/D 3 ^CAT5119 4 CS
© 2008 SCILLC. All rights reserved.
1
Characteristics subject to change without notice
L
Doc. No. MD-2120 Rev. K