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Numéro de référence | CAT5126 | ||
Description | One-Time Digitally Programmable 32 Tap Potentiometer | ||
Fabricant | Catalyst Semiconductor | ||
Logo | |||
1 Page
CAT5126
One-Time Digitally Programmable 32 Tap Potentiometer
FEATURES
Wiper position stored after one-time non-
volatile programming
User-defined Power-On wiper position
32 tap positions
Wiper position programmed through simple
2-wire serial interface
Low 0.35µA (typ) static supply current
2.5V to 5.5V single-supply operation
10kΩ, 50kΩ, and 100kΩ end-to-end resistances
50ppm/°C end-to-end temperature coefficient
and 5ppm/°C ratiometric temperature
coefficient
8-Pin TDFN (2mm x 3mm) and MSOP packages
APPLICATIONS
DESCRIPTION
The CAT5126 is a digital programmable
potentiometer. The wiper position is controlled with a
simple 2-wire digital interface. This digital
potentiometer is unique in that it has an optional one-
time programmable feature that either sets the wiper’s
position upon power-on to a user-defined value, or the
wiper can be set and the interface also disabled to
prevent further adjustment.
The CAT5126 has an end-to-end resistance of 10kΩ,
50kΩ, and 100kΩ. All CAT5126 devices have 32
wiper positions and operate from a single 2.5V to 5.5V
supply.
The CAT5126 is available in 8-pin TDFN and MSOP
packages. Each device is guaranteed over the
industrial temperature range of -40°C to +85°C.
Mechanical potentiometer replacement
www.DataSheet4U.com
Products using one-time factory calibration
For Ordering Information details, see page 10.
Contrast, brightness, volume controls
Programmable analog functions
PIN CONFIGURATION
MSOP (Z)
(top view)
RW 1
8 RH
¯C¯S¯ 2 CAT 7 RL
VDD 3 5126 6 U/D¯
GND 4
5 VPP
TDFN (VP2)
(top view)
RW
¯C¯S¯
VDD
GND
1
2
3
4
8 RH
7 RL
6 U/D¯
5 VPP
FUNCTIONAL DIAGRAM
VDD 3
GND 4
CS 2
U/D 6
VPP 5
UP/DOWN
COUNTER
ONE-TIME
PROGRAM
BLOCK
RH
8
32-POSITION
DECODER
R31
R30
R2
R1
7
RL
RW 1
RW
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 2129 Rev. A
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Pages | Pages 11 | ||
Télécharger | [ CAT5126 ] |
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