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CAT5132ZI-00-GT3

P1-P3P4-P6P7-P9P10-P12
Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 7
1 Publication Order Number:
CAT5132/D
CAT5132
16 Volt Digital
Potentiometer (POT)
with 128 Taps
and I
2
C Interface
Description
The CAT5132 is a high voltage digital POT 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 I
2
C 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 Digital Potentiometer with 128 Taps
End-to-end Resistance of 10 kW, 50 kW or 100 kW
I
2
C 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: −40C to +85C
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
PIN CONFIGURATION
MSOP−10
Z SUFFIX
CASE 846AE
R
H
R
L
V+
SCL
A0
V
CC
GND
SDA
1
(Top View)
R
W
A1
Device Package Shipping
†
ORDERING INFORMATION
CAT5132ZI−10−GT3
MSOP
(Pb−Free)
3,000 /
Tape & Reel
CAT5132ZI−50−GT3
CAT5132ZI−00−GT3
MARKING DIAGRAM
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
ANBx
YMR
†For information on tape and reel specifications, in-
cluding part orientation and tape sizes, please refer
to our Tape and Reel Packaging Specifications Bro-
chure, BRD8011/D.
1. For detailed information and a breakdown of
device nomenclature and numbering systems,
please see the ON Semiconductor Device No-
menclature document, TND310/D, available at
www.onsemi.com
.
2. The standard lead finish is NiPdAu.
3. For additional package and temperature options,
please contact your nearest ON Semiconductor
Sales office.
CAT5132
http://onsemi.com
2
Figure 1. Block Diagram
SDA
SCL
CONTROL LOGIC AND
ADDRESS DECODE
7−BIT WIPER
CONTROL
REGISTER
(WCR)
(DR)
V+
127 RESISTIVE
ELEMENTS
127
0
A0
A1
V
CC
7−BIT
NONVOLATILE
MEMORY
REGISTER
128 TAP POSITION
DECODE CONTROL
R
H
R
L
R
W
Table 1. PIN FUNCTION DESCRIPTION
Pin No. Pin Name Description
1 SDA Serial Data Input/Output − Bidirectional Serial Data pin used to transfer data into and out of the CAT5132.
This is an Open-Drain I/O and can be wire OR’d with other Open-Drain (or Open Collector) I/Os.
2 GND Ground
3 V
CC
Digital Supply Voltage (2.7 V to 5.5 V)
4 A1 Address Select Input to select slave address for I
2
C bus.
5 A0 Address Select Input to select slave address for I
2
C bus.
6 R
H
High Reference Terminal for the potentiometer
7 R
W
Wiper Terminal for the potentiometer
8 R
L
Low Reference Terminal for the potentiometer
9 V+ Analog Supply Voltage for the potentiometer (+8.0 V to 16.0 V)
10 SCL Serial Bus Clock input for the I
2
C Serial Bus. This clock is used to clock all data transfers into and out of
the CAT5132
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating Value Unit
Temperature Under Bias −55 to +125 C
Storage Temperature −65 to +150 C
Voltage on any SDA, SCL, A0 & A1 pins with respect to Ground (Note 4) −0.3 to V
CC
+ 0.3 V
Voltage on R
H
, R
L
& R
W
pins with respect to Ground V+
V
CC
with respect to Ground −0.3 to +6 V
V+ with respect to Ground −0.3 to +16.5 V
Wiper Current (10 sec) 6 mA
Lead Soldering temperature (10 sec) +300 C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
4. Latch-up protection is provided for stresses up to 100 mA on address and data pins from −0.3 V to V
CC
+0.3 V.
Table 3. RECOMMENDED OPERATING CONDITIONS
Rating Value Unit
V
CC
+2.7 to +5.5 V
V+ +8.0 to +16 V
Operating Temperature Range −40 to +85 C
CAT5132
http://onsemi.com
3
Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter Test Conditions
Limits
Units
Min Typ Max
R
POT
Potentiometer Resistance (100 kW)
100
kW
R
POT
Potentiometer Resistance (50 kW)
50
kW
R
POT
Potentiometer Resistance (10 kW)
10
kW
R
TOL
Potentiometer Resistance Tolerance 20 %
Power Rating 25C 50 mW
I
W
Wiper Current 3 mA
R
W
Wiper Resistance
I
W
= 1 mA @ V+ = 12 V 70 150
W
I
W
= 1 mA @ V+ = 8 V 110 200
W
V
TERM
Voltage on R
W
, R
H
or R
L
GND = 0 V; V+ = 8 V to 16 V GND V+ V
RES Resolution 0.78 %
A
LIN
Absolute Linearity (Note 6) V
W(n)(actual)
− V
W(n)(expected)
(Notes 9, 10) 1 LSB
(Note 8)
R
LIN
Relative Linearity (Note 7) V
W(n+1)
− [V
W(n)
+ LSB] (Notes 9, 10) 0.5 LSB
(Note 8)
TC
RPOT
Temperature Coefficient of R
POT
(Note 5) 300 ppm/C
TC
Ratio
Ratiometric Temperature Coefficient (Note 5) 30 ppm/C
C
H
/C
L
/C
W
Potentiometer Capacitances (Note 5) 10/10/25 pF
fc Frequency Response
R
POT
= 50 kW
0.4 MHz
5. This parameter is tested initially and after a design or process change that affects the parameter.
6. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
potentiometer.
7. Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer.
8. LSB = (R
HM
−
R
LM
)/127; where R
HM
and R
LM
are the highest and lowest measured values on the wiper terminal.
9. n = 1, 2, ..., 127
10.V
+
@ R
H
; 0 V @ R
L
; V
W
measured @ R
W
with no load.
Table 5. D.C. ELECTRICAL CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter Test Conditions Min Max Units
I
CC1
Power Supply Current
(Volatile Write/Read)
F
SCL
= 400 kHz, SDA Open,
V
CC
= 5.5 V, Input = GND
1 mA
I
CC2
Power Supply Current
(Nonvolatile WRITE)
F
SCL
= 400 kHz, SDA Open,
V
CC
= 5.5 V, Input = GND
3.0 mA
I
SB(VCC)
Standby Current (V
CC
= 5 V) V
IN
= GND or V
CC
, SDA = V
CC
5
mA
I
SB(V+)
V+ Standby Current V
CC
= 5 V, V+ = 16 V 10
mA
I
LI
Input Leakage Current V
IN
= GND to V
CC
10
mA
I
LO
Output Leakage Current V
OUT
= GND to V
CC
10
mA
V
IL
Input Low Voltage −1 V
CC
x 0.3 V
V
IH
Input High Voltage V
CC
x 0.7 V
CC
+ 1.0 V
V
OL1
Output Low Voltage (V
CC
= 3.0) I
OL
= 3 mA 0.4 V
Table 6. CAPACITANCE (T
A
= 25C, f = 1.0 MHz, V
CC
= 5.0 V)
Symbol
Parameter Test Conditions Min Max Units
C
I/O
Input/Output Capacitance (SDA) V
I/O
= 0 V (Note 11) 8 pF
C
IN
Input Capacitance (A0, A1, SCL) V
IN
= 0 V (Note 11) 6 pF
P1-P3P4-P6P7-P9P10-P12

CAT5132ZI-00-GT3

Mfr. #:
Buy CAT5132ZI-00-GT3
Manufacturer:
ON Semiconductor
Description:
Digital Potentiometer ICs DPP 15V 128 taps I2C
Lifecycle:
New from this manufacturer.
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