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CAT5110, CAT5118, CAT5119 CAT5123, CAT5124, CAT5125
32-Tap MiniPotTM Digitally Programmable Potentiometers with 2-Wire Interface
FEATURES
0.3A Ultra-low standby current Single-supply operation: 2.7V to 5.5V Glitchless switching between resistor taps Power-on reset to midscale 2-wire up/down serial interface Resistance values: 10k, 50k and 100k Low wiper resistance: 80 for CAT5123, CAT5124, CAT5125 CAT5110, CAT5118, CAT5119 available in SC-70
DESCRIPTION
CAT5110/18/19/23/24/25 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. The CAT5110 and CAT5125 are configured as potentiometers. The CAT5118/19/23/24 are configured as variable resistors. Three resistance values are available: 10k, 50k and 100k. All devices are available in space-saving 5-pin and 6-pin SOT-23 packages. The CAT5110/18/19 are also available in the SC-70 package.
APPLICATIONS
LCD screen adjustment Volume control Mechanical potentiometer replacement Gain adjustment Line impedance matching
FUNCTIONAL DIAGRAM
H VDD GND
UP-DOWN COUNTER
For Ordering Information details, see page 11.
32-POSITION DECODER
CS
W
U/D
PIN CONFIGURATION
SOT-23
VDD 1 6 H VDD 1
L
SOT-23
5 H VDD 1
SOT-23
6 H
GND 2
5W
GND 2
GND 2
5L
U/D 3
CAT5110 CAT5125
4
CS
U/D 3
CAT5118 CAT5123
4
CS
U/D 3
CAT5119 CAT5124
4
CS
SC-70
VDD 1 6 H VDD 1
SC-70
5 H VDD 1
SC-70
6 H
GND 2
5W
GND 2
GND 2
5L
U/D 3
CAT5110
4
CS
U/D 3
CAT5118
4
CS
U/D 3
CAT5119
4
CS
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
1
Doc. No. MD-2120 Rev. K
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
PIN DESCRIPTIONS
Pin Number CAT5110/ CAT5125 1 2 3 4 5 6 CAT5118/ CAT5123 1 2 3 4 6 CAT5119/ CAT5124 1 2 3 4 5 6 Pin Name VDD GND U/D CS L W H Description Power Supply Ground Up/Down Control Input. With CS low, a low-to-high transition increments or decrements the wiper position. Chip Select Input. A high-to-low CS transition determines the is high, or decrement if U/D is low. mode: increment if U/D Low Terminal of Resistor Wiper Terminal of Resistor High Terminal of Resistor
ABSOLUTE MAXIMUM RATINGS(1)
Parameters VDD to GND All Other Pins to GND Input and Output Latch-Up Immunity Maximum Continuous Current into H, L and W 100k 50k 10k Continuous Power Dissipation (TA = +70C) 5-pin SC-70(2) 6-pin SC-70(2) Operating Temperature Range Junction Temperature Storage Temperature Range Soldering Temperature (soldering, 10sec) Ratings -0.3 to +6 -0.3 to (VDD + 0.3) 200 0.6 1.3 1.3 247 245 -40 to +85 +150 -65 to +150 +300 Units V V mA mA
mW C C C C
Notes: (1) Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. (2) Derate 3.1mW/C above TA = +70C
Doc. No. MD-2120 Rev. K
2
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
ELECTRICAL CHARACTERISTICS
VDD = 2.7V to 5.5V, VH = VDD, VL = 0, TA = -40C to +85C. Typical values are at VDD = 2.7V, TA = 25C, unless otherwise noted. Parameter DC Performance Resolution End-to-End Resistance (-00) End-to-End Resistance (-50) End-to-End Resistance (-10) End-to-End Resistance Tempco Ratiometric Resistance Tempco Integral Nonlinearity Differential Nonlinearity Full-Scale Error Zero-Scale Error Wiper Resistance Digital Inputs Input High Voltage Input Low Voltage U/D Mode to CS Setup CS to U/D Step Setup CS to U/D Step Hold U/D Step Low Period U/D Step High Period Up/Down Toggle Rate Output Settling Time
(1)
Symbol
Conditions
Min 32 80 40 8
Typ
Max
Units Taps
100 50 10 200 30 5 0.5 0.1
120 60 12 300 1 1 1 ppm/C ppm/C LSB LSB LSB LSB 600 200 k
TCR
CAT5110/18/19 CAT5123/24/25
INL DNL
RW
CAT5110/18/19 CAT5123/24/25 0.7 x VDD
200 80
VIH VIL tCU tCI tIC tIL tIH fTOGGLE tSETTLE 100k variable resistor configuration, CL = 10pF 100k potentiometer configuration, CL = 10pF
V 0.3 x VDD V ns ns ns ns ns 1 1 s 0.25 MHz
Timing Characteristics (Figures 1, 2) 25 50 25 25 25
(2)
Power Supply Supply Voltage Active Supply Current
(3) (4)
VDD IDD ISB
1 t SETTLE
2.7 VDD = +5V 0.3
5.5 25 1
V A A
Standby Supply Current
Notes: (1) (2) (3) (4)
Up/Down Toggle Rate: fTOGGLE =
Typical settling times are dependent on end-to-end resistance. Supply current measured while changing wiper tap, fTOGGLE = 1MHz. Supply current measured while wiper position is fixed. 3
Doc. No. MD-2120 Rev. K
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
TYPICAL OPERATING CHARACTERISTICS
TA = 25C, unless otherwise noted.
WIPER RESISTANCE vs. WIPER POSITION
140 120 100
CAT5110/5118/5119
END-TO-END RESISTANCE % CHANGE
160
CHANGE IN END-TO-END RESISTANCE vs. TEMPERATURE 1.5
1.0 0.5 0.0 -0.5 -1.0 -1.5 -50
CAT5110/5118/5119 CAT5123/5124/5125
W-TO-L RESISTANCE vs. TAP POSITION
120 100
RESISTANCE (k)
80 60
100k
RW ()
80 60 40 20 0 0 5
CAT5123/5124/5125
50k
40 20 0
10k
VDD = 2.7V 10 15 20 25 WIPER POSTION 30
0
50
100
1 3 5 7 9 1113151719212325272931 TAP POSITION
TEMPERATURE (C)
SUPPLY CURRENT vs. TEMPERATURE
0.45 0.40 0.35
VDD = 5.5V
TAP-TO-TAP SWITCHING TRANSIENT
CURRENT (A)
0.30 0.25 0.20 0.15 0.10 0.05 0.00 -50 0 50 100 150
VDD = 2.7V
U/D 2V/div
WIPER OUTPUT 100mv/div
TEMPERATURE (C)
200ns/div
Doc. No. MD-2120 Rev. K
4
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
FUNCTIONAL DESCRIPTION
The CAT5110/5118/5119/5123/5124/5125 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. Three end-to-end resistance values are available: 10k, 50k and 100k. The CAT5110/5125 is designed to operate as a potentiometer. In this configuration, the low terminal of the resistor array is connected to ground (pin 2). The CAT5118/5123 performs as a variable resistor. In this device, the wiper terminal and high terminal of the resistor array are connected at pin 5. The CAT5119/5124 is a similar variable resistor, except the low terminal is connected to pin 5. Digital Interface Operation The MiniPots have two modes of operation when the serial interface is active: increment and decrement mode. The serial interface is only active when CS is low. The CS and U/D inputs control the position of the wiper along the resistor array. When CS transitions from high to low, the part will go into increment mode if U/D input is high, and into decrement mode when U/D input is low. Once the mode is set, the device will remain in that mode until CS goes high again. A low to-high transition at the U/D pin will increment or decrement the wiper position depending on the current mode (Figures 1 and 2). When the CS input transitions to high (serial interface inactive), the value of the counter is stored and the wiper position is maintained. Note that when the wiper reaches the maximum (or minimum) tap position, the wiper will not wrap around to the minimum (or maximum) position. Power-On Reset All parts in this family feature power-on reset (POR) circuitry that sets the wiper position to midscale at power-up. By default, the chip is in the increment mode.
CS
t CU t IL
U/D
t IC
t CI t SETTLE
W Note: "W" is not a digital signal. It represents wiper transitions.
t IH
t SETTLE
Figure 1. Serial Interface Timing Diagram, Increment Mode
CS
t CU t IH
U/D
t IC
t IL
W
t CI t SETTLE
t SETTLE
Note: "W" is not a digital signal. It represents wiper transitions.
Figure 2. Serial Interface Timing Diagram, Decrement Mode
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
5
Doc. No. MD-2120 Rev. K
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
APPLICATIONS INFORMATION
The MiniPots are intended for circuits requiring digitally controlled adjustable resistance, such as LCD contrast control, where voltage biasing adjusts the display contrast. Alternative Positive LCD Bias Control An op amp can be used to provide buffering and gain on the output of the CAT5110/CAT5125. This can be done by connecting the wiper output to the positive input of a noninverting op amp as shown in Figure 3. Figure 4 shows a similar circuit for the CAT5119/ CAT5124. Adjustable Gain Figure 5 shows how to use either a variable resistor or a potentiometer to digitally adjust the gain of a noninverting op amp configuration, by connecting the Minipot in series with a resistor to ground. The MiniPots have a low 5ppm/C ratiometric tempco that allows for a very stable adjustable gain configuration over temperature.
+5V H 30V W CAT5110/CAT5125 L VOUT
+5V H 30V VOUT CAT5119/CAT5124 L
Figure 3. Positive LCD Bias Control
Figure 4. Positive LCD Bias Control
V CC VIN VOUT VIN
VCC VOUT
H W L H
CAT5118/CAT5123 L
CAT5110/CAT5125
Figure 5a. Adjustable Gain Circuit
Figure 5b. Adjustable Gain Circuit
Doc. No. MD-2120 Rev. K
6
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
PACKAGE OUTLINE DRAWINGS
SC-70 6-Lead (SD) (1)(2)
D e e
SYMBOL
MIN
NOM
MAX
A A1 A2 b c
E1 E
0.80 0.00 0.80 0.15 0.10 1.80 1.80 1.15 0.26 2.00 2.10 1.25 0.65 BSC 0.36 0.42 REF 0.15 BSC 0 4
1.10 0.10 1.00 0.30 0.18 2.20 2.40 1.35 0.46
D E E1 e L L1 L2 1
TOP VIEW
8 10
1
A2 A L L1
1
b
A1
c END VIEW
L2
SIDE VIEW
For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf.
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MS-203.
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
7
Doc. No. MD-2120 Rev. K
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
SOT-23 6-Lead (TB) (1)(2)
D e
SYMBOL
MIN
NOM
MAX
A A1 A2 b c
E1 E
0.90 0.00 0.90 0.30 0.08 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 0.30 0.45 0.60 REF 0.25 REF 0 5 5 4 10 10 1.15
1.45 0.15 1.30 0.50 0.22
D E E1 e L
0.60
PIN #1 IDENTIFICATION TOP VIEW
L1 L2 1 2
8 15 15
1
A2
A
2
SIDE VIEW
b A1
L1
L2
L
c
END VIEW
For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf.
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-178.
Doc. No. MD-2120 Rev. K
8
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
SC-70 5-Lead (SD) (1)(2)
D e e
SYMBOL
MIN
NOM
MAX
A A1 A2 b c
E1 E
0.80 0.00 0.80 0.15 0.10 1.80 1.80 1.15 0.26 2.00 2.10 1.25 0.65 BSC 0.36 0.42 REF 0.15 BSC 0 4
1.10 0.10 1.00 0.30 0.18 2.20 2.40 1.35 0.46
D E E1 e L L1 L2 1
TOP VIEW
8 10
1
A2 A L L1
1
b
A1
c END VIEW
L2
SIDE VIEW
For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf.
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MS-203.
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
9
Doc. No. MD-2120 Rev. K
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
SOT-23 5-Lead (TB) (1)(2)
D
SYMBOL
MIN
NOM
MAX
A A1 A2 b
E1 E
0.90 0.00 0.90 0.30 0.08 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 0.30 0.45 0.60 REF 0.25 REF 0 5 5 4 10 10 1.15
1.45 0.15 1.30 0.50 0.22
c D E E1 e
e PIN #1 IDENTIFICATION TOP VIEW
L L1 L2 1 2
0.60
8 15 15
1
A2
A
2
SIDE VIEW
b A1
L1
L2
L
c
END VIEW
For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf.
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-178.
Doc. No. MD-2120 Rev. K
10
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
EXAMPLE OF ORDERING INFORMATION (1)
Prefix CAT Device # 5110 Suffix SD I -10 - G T3
Optional Company ID Product Number 5110 5118 5119 5123 5124 5125
Temperature Range I = Industrial (-40C to 85C) Resistance -10: 10k -50: 50k -00: 100k
Tape & Reel T: Tape & Reel 3: 3,000/Reel Lead Finish Blank: Matte-Tin G: NiPdAu
Package SD: SC-70 TB: SOT-23
For Product Top Mark Codes, click here: http://www.catsemi.com/techsupport/producttopmark.asp
Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard finish is NiPdAu. (3) The device used in the example above is a CAT5110SDI-10 -GT3 (SC-70, Industrial Temperature, 10k, NiPdAu, Tape & Reel, 3,000/Reel). (4) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office.
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
11
Doc. No. MD-2120 Rev. K
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
ORDERING INFORMATION
Device CAT5110 Ordering Part Number CAT5110SDI-10-GT3 CAT5110TBI-10-T3 CAT5110TBI-10-GT3 CAT5110SDI-50-GT3 CAT5110TBI-50-T3 CAT5110TBI-50-GT3 CAT5110SDI-00-GT3 CAT5110TBI-00-T3 CAT5110TBI-00-GT3 CAT5118 CAT5118SDI-10-GT3 CAT5118TBI-10-T3 CAT5118TBI-10-GT3 CAT5118SDI-50-GT3 CAT5118TBI-50-T3 CAT5118TBI-50-GT3 CAT5118SDI-00-GT3 CAT5118TBI-00-T3 CAT5118TBI-00-GT3 CAT5119 CAT5119SDI-10-GT3 CAT5119TBI-10-T3 CAT5119TBI-10-GT3 CAT5119SDI-50-GT3 CAT5119TBI-50-T3 CAT5119TBI-50-GT3 CAT5119SDI-00-GT3 CAT5119TBI-00-T3 CAT5119TBI-00-GT3 Resistor [k] 10 10 10 50 50 50 100 100 100 10 10 10 50 50 50 100 100 100 10 10 10 50 50 50 100 100 100 Pin Package SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 SC70-5 SOT23-5 SOT23-5 SC70-5 SOT23-5 SOT23-5 SC70-5 SOT23-5 SOT23-5 SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 Parts Per Reel 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000
Doc. No. MD-2120 Rev. K
12
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
Device CAT5123
Ordering Part number CAT5123TBI-10-T3 CAT5123TBI-10-GT3 CAT5123TBI-50-T3 CAT5123TBI-00-T3
(1) (1)
Resistor [k] 10 10 50 50 100 100 10 10 50 50 100 100 10 10 50 50 100 100
Pin Package SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6
Parts Per Reel 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000
CAT5123TBI-50-GT3 CAT5123TBI-00-GT3 CAT5124 CAT5124TBI-10-T3 CAT5124TBI-10-GT3 CAT5124TBI-50-T3
(1) (1)
(1) (1)
CAT5124TBI-50-GT3 CAT5124TBI-00-T3
(1) (1)
CAT5124TBI-00-GT3 CAT5125 CAT5125TBI-10-T3
CAT5125TBI-10-GT3 CAT5125TBI-50-T3 CAT5125TBI-00-T3
(1) (1)
CAT5125TBI-50-GT3 CAT5125TBI-00-GT3
(1) (1)
Notes: (1) Contact factory for availability.
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
13
Doc. No. MD-2120 Rev. K
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
REVISION HISTORY
Date 10-Mar-04 18-Mar-04 19-Jul-04 Rev. A B C Description Initial Issue Update Typical Operating Characteristics Update SC70 package outline Added SOT-23 package in all areas Update Description Update Electrical Characteristics Update Typical Operating Characteristics Update Functional Description Added CAT5123, CAT5124, CAT5125 Update Features Update Description Update Pin Configuration Update Pin Description Update Electrical Characteristics Update Typical Operating Characteristics Update Functional Description Update Figures 3, 4, 5 and 6 Update Package Information Update Example of Ordering Information Update Ordering information Update Electrical Characteristics Update Package Outline Drawings Update Example of Ordering Information Update Ordering Information "Top Marking" Update Electrical Characteristics Update Package Outline Drawings Update Ordering Information Add Top Mark Code link Delete 10,000 per reel option Update Document Layout Change logo and fine print to ON Semiconductor
15-Dec-06
D
29-Jan-07 03-Aug-07
E F
02-Nov-07 29-Jan-08 12-Mar-08 29-May-08 20-Nov-08
G H I J K
Doc. No. MD-2120 Rev. K
14
(c) 2008 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center: Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative

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