CAT5132 Datasheet, PDF (1/14 Pages) Catalyst Semiconductor – 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface

CAT5132
16 Volt Digitally Program-
mable Potentiometer (DPPt)
with 128 Taps and I²C
Interface
Description
The CAT5132 is a high voltage Digitally Programmable
Potentiometer (DPP) with non−volatile wiper setting memory,
operating like a mechanical potentiometer. The tap points between the
127 equal resistive elements are connected to the wiper output via
CMOS switches. The switches are controlled by a 7−bit Wiper Control
Register (WCR). The wiper setting can be stored in a 7−bit
non−volatile Data Register (DR). The WCR is accessed via the I²C
serial bus.
Upon power−up, the WCR is set to mid−scale (1000000). After the
power supply is stable, the contents of the DR are transferred to the
WCR and the wiper is returned to the memorized setting.
The CAT5132 has two voltage supplies: V_CC, the digital supply and
V+, the analog supply. V+ can be much higher than V_CC, allowing for
16 V analog operations.
The CAT5132 can be used as a potentiometer or as a two−terminal
variable resistor.
Features
• Single Linear DPP with 128 Taps
• End−to−end Resistance of 10 kW, 50 kW or 100 kW
• I²C Interface
• Fast Up/Down Wiper Control Mode
• Non−volatile Wiper Setting Storage
• Automatic Wiper Setting Recall at Power−up
• Digital Supply Range (V_CC): 2.7 V to 5.5 V
• Analog Supply Range (V+): +8 V to +16 V
• Low Standby Current: 15 mA
• 100 Year Wiper Setting Memory
• Industrial Temperature Range: −40°C to +85°C
• 10−pin MSOP Package
• 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
• VCOM Setting Adjustments
http://onsemi.com
MSOP−10
Z SUFFIX
CASE 846AE
MARKING DIAGRAM
ANBx
YMR
ANBU = CAT5132ZI-10-GT3
ANBK = CAT5132ZI-50-GT3
ANBP = CAT5132ZI-00-GT3
Y = Production Year (Last Digit)
M = Production Month (1-9, A, B, C)
R = Production Revision
PIN CONFIGURATION
SDA
1
GND
V_CC
A1
A0
SCL
V+
R_L
R_W
R_H
(Top View)
ORDERING INFORMATION
Device
CAT5132ZI−10−GT3
CAT5132ZI−50−GT3
CAT5132ZI−00−GT3
Package
MSOP
(Pb−Free)
Shipping
3,000 /
Tape & Reel
© Semiconductor Components Industries, LLC, 2010
1
July, 2010 − Rev. 5
Publication Order Number:
CAT5132/D