CAT5122SDI-10-T ON Semiconductor, CAT5122SDI-10-T Datasheet

CAT5122SDI-10-T

Manufacturer Part Number
CAT5122SDI-10-T
Description
Manufacturer
ON Semiconductor
Datasheet

Specifications of CAT5122SDI-10-T

Number Of Elements
1
# Of Taps
16
Resistance (max)
10KOhm
Power Supply Requirement
Single
Interface Type
Serial (2-Wire)
Single Supply Voltage (typ)
3.3/5V
Dual Supply Voltage (typ)
Not RequiredV
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
5
Lead Free Status / RoHS Status
Compliant
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
APPLICATIONS
PIN CONFIGURE
DESCRIPTION
CAT5120/5121/5122 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.
CAT5120, CAT5121, CAT5122
16-Tap MiniPot™ Digitally Programmable Potentiometers with 2-Wire Interface
FEATURES
GND
GND
LCD screen adjustment
Volume control
Mechanical potentiometer replacement
0.3 A Ultra-low supply current
Single-supply operation: 2.7 V to 5.5 V
Glitchless switching between resistor taps
Power-on reset to midscale
U/D
U/D
V
V
DD
DD
1
2
3
1
2
3
CAT5121
CAT5120
5
5
6 H
4
6 H
4
L
CS
W
CS
Top View
GND
U/D
V
DD
1
2
3
CAT5122
5 H
4
CS
1
The CAT5120 is configured as a potentiometer. The
CAT5121 and CAT5122 are configured as variable
resistors. See Pin Configurations for part functionality.
Three resistance values are available: 10k , 50k and
100k . These are available in space-saving 5-pin and
6-pin SC70 and SOT-23 packages.
FUNCTIONAL DIAGRAM
2-Wire up/down serial interface
Resistance values: 10k
Available in SC70 and SOT-23 packages
Gain adjustment
Line impedance matching
GND
U/D
V
CS
DD
Counter
UP/DN
16-Position
Decoder
50k and 100k
H
L
Doc. No. 2121, Rev. B
W

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CAT5122SDI-10-T Summary of contents

Page 1

CAT5120, CAT5121, CAT5122 16-Tap MiniPot™ Digitally Programmable Potentiometers with 2-Wire Interface FEATURES 0.3 A Ultra-low supply current Single-supply operation: 2 5.5 V Glitchless switching between resistor taps Power-on reset to midscale APPLICATIONS LCD screen adjustment Volume control Mechanical ...

Page 2

CAT5120/5121/5122 PIN DESCRIPTION ...

Page 3

ORDERING INFORMATION ...

Page 4

CAT5120/5121/5122 ORDERING INFORMATION (CON’ ...

Page 5

ABSOLUTE MAXIMUM RATINGS V to GND........................................... -0 All Other Pins to GND .............. -0 Input and Output Latch-Up Immunity ............ +200 mA Maximum Continuous Current into H, L and W 100k 50k ...

Page 6

CAT5120/5121/5122 ELECTRICAL CHARACTERISTICS unless otherwise noted ...

Page 7

FUNCTIONAL DESCRIPTION The CAT5120/5121/5122 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. Three end-to-end resistance values are available: 10k , 50k and 100k . The CAT5120 ...

Page 8

CAT5120/5121/5122 APPLICATIONS INFORMATION The Minipots are intended for circuits requiring digitally controlled adjustable resistance, such as LCD contrast control, where voltage biasing adjusts the display con- trast. Alternative Positive LCD Bias Control Use an op amp to provide buffering and ...

Page 9

PACKAGE OUTLINES SC70 E1/2 E1 0.15(.006) C PIN # .10(.004) C (b) b1 BASE METAL SECTION A-A NOTE: 1. CONTROLLING DIMENSION: MILLIMETER. CONVERTED INCH DIMENSION ARE NOT NECESSARILY EXACT. 2. DIMENSION "D" DOES NOT INCLUDE MOLD FLASH, PROTRUSION ...

Page 10

CAT5120/5121/5122 SOT-23 (AA OPTION aaa X=A &/or B ODD LEAD SIDES TOP VIEW All Dimensions are in Millimeters Min Nom Max A — — 1.00 A1 ...

Page 11

REVISION HISTORY Date Rev. 03/10/2005 A 11/16/2005 B Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: DPP ™ ™ MiniPot™ Catalyst Semiconductor has been issued U.S. and foreign patents and ...

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