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CAT5120SDI-50GT3

P1-P3P4-P6P7-P9P10-P11
Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 8
1 Publication Order Number:
CAT5120/D
CAT5120, CAT5121,
CAT5122
16‐tap Digital
Potentiometers (POTs)
with 2‐wire Interface
Description
CAT5120/5121/5122 linear-taper digital POTs perform the same
function as a mechanical potentiometer or a variable resistor. These
devices consist of a fixed resistor and a wiper contact with 16-tap
points that are digitally controlled through a 2-wire up/down serial
interface.
The CAT5120 is configured as a potentiometer. The CAT5121 and
CAT5122 are configured as variable resistors. See Pin Configurations
for part functionality.
Two resistance values are available: 10 kW and 50 kW. These are
available in space-saving 5-pin and 6-pin SC−70 and SOT−23
packages.
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
Available in SC−70 and SOT−23 Packages
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 CONFIGURATIONS
SOT−23
TB SUFFIX
CASE 527AJ
SC−70
SD SUFFIX
CASE 419AC
SOT−23
TB SUFFIX
CASE 527AH
GND
H
2
CAT5122
16
1
5
34
2
3
4
W
5
CAT5120
SC−70
SOT−23
1
6
2
L
5
CAT5121
3
4
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
CSU/D
V
DD
GND
H
SC−70
SOT−23
CS
U/D
V
DD
GND
H
SC−70
SOT−23
CS
U/D
V
DD
CAT5120, CAT5121, CAT5122
http://onsemi.com
2
Figure 1. Functional Diagram
16−POSITION
DECODER
UP−DOWN
COUNTER
GND
H
L
W
U/D
CS
V
DD
Table 1. PIN DESCRIPTIONS
Name Description
V
DD
Power Supply
GND Ground
U/D Up/Down Control Input. With CS low, a low-to-high transition increments or decrements the wiper position.
CS Chip Select Input. A high-to-low CS transition determines the mode: increment if U/D is high, or decrement if U/D is low.
L Low Terminal of Resistor
W Wiper Terminal of Resistor
H High Terminal of Resistor
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameters Ratings Units
V
DD
to GND −0.3 to +6 V
All Other Pins to GND −0.3 to (V
DD
+ 0.3) V
Input and Output Latch-up Immunity 200 mA
Maximum Continuous Current into H, L and W
50 kW
ą10 kW
1.3
1.3
mA
Continuous Power Dissipation (T
A
= +70C)
5-pin SC−70 (Note 1)
6-pin SC−70 (Note 1)
247
245
mW
Operating Temperature Range −40 to +85 C
Junction Temperature +150 C
Storage Temperature Range −65 to +150 C
Soldering Temperature (soldering, 10 s) +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.
1. Derate 3.1 mW/C above T
A
= +70C
CAT5120, CAT5121, CAT5122
http://onsemi.com
3
Table 3. ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7 V to 5.5 V, V
H
= V
DD
, V
L
= 0, T
A
= −40C to +85C. Typical values are at V
DD
= 2.7 V, T
A
= 25C, unless otherwise noted.)
Parameter
Symbol Conditions Min Typ Max Units
DC PERFORMANCE
Resolution
16 Taps
End-to-End Resistance (−50) 37.5 50 62.5 kW
End-to-End Resistance (−10) 7.5 10 12.5
End-to-End Resistance Tempco TC
R
200 ppm/C
Ratiometric Resistance Tempco 5 ppm/C
Integral Non-linearity INL 0.5 LSB
Differential Non-linearity DNL 0.5 LSB
Zero/Full-Scale Error 0.1 0.5 LSB
Wiper Resistance R
W
200 600
W
DIGITAL INPUTS
Input High Voltage
V
IH
0.7 x V
DD
V
Input Low Voltage V
IL
0.3 x V
DD
V
TIMING CHARACTERISTICS (Figures 7, 8)
U/D
Mode to CS Setup t
CU
25 ns
CS to U/D Step Setup t
CI
50 ns
CS to U/D Step Hold t
IC
25 ns
U/D Step Low Period t
IL
25 ns
U/D Step High Period t
IH
25 ns
Up/Down Toggle Rate (Note 2) f
TOGGLE
1 MHz
Output Settling Time (Note 3) t
SETTLE
50 kW variable resistor
configuration, C
L
= 10 pF
1 ms
50 kW potentiometer
configuration, C
L
= 10 pF
0.25
POWER SUPPLY
Supply Voltage
V
DD
2.7 5.5 V
Active Supply Current (Note 4) I
DD
25
mA
Standby Supply Current (Note 5) I
SB
V
DD
= +5 V 0.3 1
mA
2. Up/Down Toggle Rate: f
TOGGLE
= 1 / t
SETTLE
3. Typical settling times are dependent on end-to-end resistance.
4. Supply current measured while changing wiper tap, f
TOGGLE
= 1 MHz.
5. Supply current measured while wiper position is fixed.
P1-P3P4-P6P7-P9P10-P11

CAT5120SDI-50GT3

Mfr. #:
Buy CAT5120SDI-50GT3
Manufacturer:
ON Semiconductor
Description:
Digital Potentiometer ICs DPP MINIPOT 16 TAPS U/D
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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