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CAT5115 32-Tap Digitally Programmable Potentiometer (DPPTM)
FEATURES
32-position linear taper potentiometer Low power CMOS technology Single supply operation: 2.5V - 6V Increment up/down serial interface Resistance values: 10k, 50k and 100k Available in PDIP, SOIC, TSSOP, MSOP and space saving 2 x 2.5mm TDFN packages
DESCRIPTION
The CAT5115 is a single digitally programmable potentiometer (DPPTM) designed as a electronic replacement for mechanical potentiometers and trim pots. Ideal for automated adjustments on high volume production lines, they are also well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment. The CAT5115 contains a 32-tap series resistor array connected between two terminals RH and RL. An up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, RW. The wiper is always set to the mid point, tap 15 at power up. The tap position is not stored in memory. Wiper-control of the CAT5115 is accomplished with three input control pins, CS, U/D, and INC. The INC input increments the wiper in the direction which is determined by the logic state of the U/D input. The CS input is used to select the device. The digitally programmable potentiometer can be used as a three-terminal resistive divider or as a two-terminal variable resistor. DPPs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing. For a pin-compatible device that recalls a stored tap position on power-up refer to the CAT5114 data sheet.
APPLICATIONS
Automated product calibration Remote control adjustments Offset, gain and zero control Tamper-proof calibrations Contrast, brightness and volume controls Motor controls and feedback systems Programmable analog functions
For Ordering Information details, see page 13.
FUNCTIONAL DIAGRAM
VCC VDD RH U/D INC CS Control and Power-On Recall RW GND
32-POSITION DECODER
RH/VH
RH
CS
UP-DOWN COUNTER
INC U/D
RW/VW
RW
RL GND
RL/VL
RL Electronic Potentiometer Implementation
General
Detailed
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
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Doc. No. MD-2117 Rev. J
CAT5115
PIN CONFIGURATION
PDIP 8-Lead (L), SOIC 8-Lead (V), MSOP 8-Lead (Z)
INC U/D RH GND 1 2 3 4 8 VCC CS RL RWB 7 6 5
PIN DESCRIPTIONS
Name Function INC U/D RH GND RW RL CS VCC Increment Control Up/Down Control Potentiometer High Terminal Ground Buffered Wiper Terminal Potentiometer Low Terminal Chip Select Supply Voltage
CAT
TSSOP 8-Lead (Y)
CS VCC INC U/D 1 2 3 4 8 RL RWB GND RH 7 6 5
TDFN 8-Pad (ZD7) Top View
INC 1 U/D 2 RH 3 GND 4 8 VCC 7 CS 6 RL 5 RWB
CAT
PIN FUNCTION
INC: Increment Control Input The INC input moves the wiper in the up or down direction determined by the condition of the U/D input. U/D: Up/Down Control Input The U/D input controls the direction of the wiper movement. When in a high state and CS is low, any high-to-low transition on INC will cause the wiper to move one increment toward the RH terminal. When in a low state and CS is low, any high-to-low transition on INC will cause the wiper to move one increment towards the RL terminal. RH: High End Potentiometer Terminal RH is the high end terminal of the potentiometer. It is not required that this terminal be connected to a potential greater than the RL terminal. Voltage applied to the RH terminal cannot exceed the supply voltage, VCC or go below ground, GND. RW: Wiper Potentiometer Terminal RW is the wiper terminal of the potentiometer. Its position on the resistor array is controlled by the control inputs, INC, U/D and CS. Voltage applied to the RW terminal cannot exceed the supply voltage, VCC or go below ground, GND. RL: Low End Potentiometer Terminal RL is the low end terminal of the potentiometer. It is not required that this terminal be connected to a potential less than the RH terminal. Voltage applied to the RL terminal cannot exceed the supply voltage, VCC or go below ground, GND. RL and RH are electrically interchangeable. CS: Chip Select The chip select input is used to activate the control input of the CAT5115 and is active low. When in a high state, activity on the INC and U/D inputs will not affect or change the position of the wiper.
DEVICE OPERATION
The CAT5115 operates like a digitally controlled potentiometer with RH and RL equivalent to the high and low terminals and RW equivalent to the mechanical potentiometer's wiper. There are 32 available tap positions including the resistor end points, RH and RL. There are 31 resistor elements connected in series between the RH and RL terminals. The wiper terminal is connected to one of the 32 taps and controlled by three inputs, INC, U/D and CS. These inputs control a five-bit up/down counter whose output is decoded to select the wiper position. With CS set LOW the CAT5115 is selected and will respond to the U/D and INC inputs. HIGH to LOW transitions on INC will increment or decrement the wiper (depending on the state of the U/D input and five-bit counter). The wiper, when at either fixed terminal, acts like its mechanical equivalent and does not move beyond the last position. When the CAT5115 is powered-down, the wiper position is reset. When power is restored, the counter is set to the mid point, tap 15.
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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5115
RH
OPERATION MODES INC High to Low High to Low High Low X CS Low Low Low to High Low to High High U/D High Low X X X
(1)
Operation Wiper toward H Wiper toward L Store Wiper Position No Store, Return to Standby Standby
CH
RWI RW CW
CL RL
Potentiometer Equivalent Circuit
ABSOLUTE MAXIMUM RATINGS Parameters Supply Voltage VCC to GND Inputs CS to GND INC to GND U/D to GND H to GND L to GND W to GND Ratings -0.5 to +7V
Units V V V V V V V
-0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5
Parameters Operating Ambient Temperature Industrial (`I' suffix) Junction Temperature Storage Temperature Lead Soldering (10s max)
Ratings -40 to +85 +150 -65 to 150 +300
Units C C C C
RELIABILITY CHARACTERISTICS Symbol VZAP(2) ILTH(2) (3) TDR NEND Parameter ESD Susceptibility Latch-Up Data Retention Endurance Test Method MIL-STD-883, Test Method 3015 JEDEC Standard 17 MIL-STD-883, Test Method 1008 MIL-STD-883, Test Method 1003 Min 2000 100 100 1,000,000 Typ Max Units V mA Years Stores
DC ELECTRICAL CHARACTERISTICS VCC = +2.5V to +6V unless otherwise specified Power Supply Symbol VCC ICC1 ISB1(3) Parameter Operating Voltage Range Supply Current (Increment) Supply Current (Standby) VCC = 6V, f = 1MHz, IW = 0 VCC = 6V, f = 250kHz, IW = 0 CS = VCC - 0.3V U/D, INC = VCC - 0.3V or GND Conditions Min 2.5 - - - Typ - - - 0.01 Max 6 100 50 1 Units V A A A
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) This parameter is tested initially and after a design or process change that affects the parameter. (3) Latch-up protection is provided for stresses up to 100mA on address and data pins from -1V to VCC + 1V. (4) IW = source or sink. (5) These parameters are periodically sampled and are not 100% tested.
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
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Doc. No. MD-2117 Rev. J
CAT5115
Logic Inputs Symbol IIH IIL VIH1 VIL1 VIH2 VIL2 Parameter Input Leakage Current Input Leakage Current TTL High Level Input Voltage TTL Low Level Input Voltage CMOS High Level Input Voltage CMOS Low Level Input Voltage Conditions VIN = VCC VIN = 0V 4.5V VCC 5.5V 2.5V VCC 6V Min - - 2 0 VCC x 0.7 -0.3 Typ - - - - - - Max 10 -10 VCC 0.8 VCC + 0.3 VCC x 0.2 Units A A V V V V
Potentiometer Characteristics Symbol RPOT Parameter Potentiometer Resistance Pot. Resistance Tolerance VRH VRL INL DNL RWI IW TCRPOT TCRATIO VN CH/CL/CW fc Voltage on RH pin Voltage on RL pin Resolution Integral Linearity Error Differential Linearity Error Wiper Resistance Wiper Current TC of Pot Resistance Ratiometric TC Noise Potentiometer Capacitances Frequency Response Passive Attenuator, 10k 100kHz / 1kHz 8/24 8/8/25 1.7 IW 2A IW 2A VCC = 5V, IW = 1mA VCC = 2.5V, IW = 1mA (1) 50 0 0 3.2 0.5 0.25 70 150 1 0.5 200 400 1 300 20 Conditions -10 Device -50 Device -00 Device Min Typ 10 50 100 20 VCC VCC % V V % LSB LSB mA ppm/C ppm/C nV/Hz pF MHz k Max Units
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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5115
AC CONDITIONS OF TEST VCC Range Input Pulse Levels Input Rise and Fall Times Input Reference Levels 2.5V VCC 6.0V 0.2VCC to 0.7VCC 10ns 0.5VCC
AC OPERATING CHARACTERISTICS VCC = +2.5V to +6.0V, VH = VCC, VL = 0V, unless otherwise specified Symbol tCI tDI tID tIL tIH tIC tCPH tIW tCYC tR, tF tPU
(2) (2)
Parameter CS to INC Setup U/D to INC Setup U/D to INC Hold INC LOW Period INC HIGH Period INC Inactive to CS Inactive CS Deselect Time INC to VOUT Change INC Cycle Time INC Input Rise and Fall Time Power-up to Wiper Stable
Min 100 50 100 250 250 1 100 - 1 - -
Typ - - - - - - - 1 - - -
(1)
Max - - - - - - - 5 - 500 1
Units ns ns ns ns ns s ns s s s ms
A.C. TIMING
CS (store) tCPH 90% 10% tDI U /D tID tF tR 90%
tCI INC
tIL
tCYC
tIH
tIC
tIW RW
MI(3)
Notes: (1) Typical values are for TA = 25C and nominal supply voltage. (2) This parameter is periodically sampled and not 100% tested. (3) MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
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Doc. No. MD-2117 Rev. J
CAT5115
APPLICATIONS INFORMATION
POTENTIOMETER CONFIGURATION
(a) resistive divider
(b) variable resistance
(c) two-port
APPLICATIONS
V1 (-)
3
+ -
1
R3
R4
+5V
2
9
+5V R1 RA
6
2
8
+5V
2 8
+5V
R2 R1 R2
10
- +
R4
4
A3
8
1 DPP 7
pRPOT
5 3
4 7
8 3
1 DPP 7 4 6
VO
4
(1-p)R POT
11
RB R2
555
CAT5113/5114/5115 V2 (+)
5
- +
7
R3
+2.5V A1 = A2 = A3 = 1/4 LM6064 R2 = R3 = R4 = 5k RPOT = 10k
6
5 2 1
C
0.01F 0.003F
0.01F
Programmable Instrumentation Amplifier
Programmable Sq. Wave Oscillator (555)
IC3A 1/4 74HC132 OSC
2
7
- +
ICIB
6
VREF = 1V
+5V
8
+200mV
20k
5
10k 0.01F CS
1 DPP 7 4
+ -
VCORR 499k
2
499k +5V
CAT5111/5112 IC2
- +
4
1
VOUT = 1V 1mV
3
11 ICIA
-5V
Sensor
VSHIFT = 100mV 499k 499k VSENSOR = 1V 50mV
Sensor Auto Referencing Circuit
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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5115
100k
2
+5V
8 1 DPP CAT5113/5114 7 4
VOUT VIN (UNREG) SHUTDOWN
1F +5V
2 1 7 8
Control and Memory POR
VO (REG) R1 11k
2952 SD GND FB
1.23V
0.1F
6.8F
330
R2 820
2
pR (1-p)R
6 3 5
330
1M
+5V
+5V
3 5
-
R3 10k
IS
3
7 6
A1
10k
2
- +
7 6
A2
+
VO
4
3
4
4
CAT5113/5114/5115
6
LT1097
+2.5V
Programmable Voltage Regulator
+5V IC1 393
1
Programmable I to V Converter
IC2 74HC132 OSC
CLO
- +
2
VLL
R1
3
R2
10k
CHI 7
- +
6
0.1F
R3
5
VUL
+5V
C1 0.001F 1F VS 50k R1 C2 0.001F R2 10k
R3 100k
2
IC3 CAT5114/5113 +5V 6
8 2
U/D
+5V
+5V
-
3
7 6
10k
3
CS
4
VS
+2.5V
0 VS 2.5V
Automatic Gain Control
Serial Bus
7
A2
Programmable Current Source/Sink
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
7
+
-
+
1 INC 7
-
VO AI IC4 2.5 VO 5V
2 4
5
+5V
8
+
VO
4
A1
1 DPP 7
+2.5V
CAT5113/5114
Programmable Bandpass Filter
CAT5111/5112 +5V +5V
R1 100k
R1 100k
- +
+2.5V
VS
2
+5V
-
R1 100k R1 100k
3
7 1
R 2.5k
IS
+
11
5
+2.5V
6
A1 = A2 = LMC6064A
Doc. No. MD-2117 Rev. J
CAT5115
PACKAGE OUTLINE DRAWINGS
PDIP 8-Lead 300mils (L)
(1)(2)
SYMBOL
MIN
NOM
MAX
A A1 A2 b
E1
5.33 0.38 2.92 0.36 1.14 0.20 9.02 7.62 6.10 7.87 2.92 3.30 3.30 0.46 1.52 0.25 9.27 7.87 2.54 BSC 6.35 7.11 10.92 3.80 4.95 0.56 1.78 0.36 10.16 8.25
b2 c D E e E1 eB
PIN # 1 IDENTIFICATION D
L
TOP VIEW
E
A
A2
A1 b2 L c
e SIDE VIEW
b
eB
END VIEW
Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC standard MS-001.
Doc. No. MD-2117 Rev. J
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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5115
SOIC 8-Lead 150mils (V) (1)(2)
SYMBOL
MIN
NOM
MAX
A A1 b c
E1 E
1.35 0.10 0.33 0.19 4.80 5.80 3.80 1.27 BSC 0.25 0.40 0
1.75 0.25 0.51 0.25 5.00 6.20 4.00 0.50 1.27 8
D E E1 e h L
PIN # 1 IDENTIFICATION TOP VIEW
D
h
A1
A
c
e
b
L END VIEW
SIDE VIEW
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MS-012.
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
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Doc. No. MD-2117 Rev. J
CAT5115
(1)(2)
TSSOP 8-Lead 4.4mm (Y)
b
SYMBOL
MIN
NOM
MAX
A A1 A2 b c
E1 E
1.20 0.05 0.80 0.19 0.09 2.90 6.30 4.30 3.00 6.40 4.40 0.65 BSC 1.00 REF 0.50 0 0.60 0.75 8 0.90 0.15 1.05 0.30 0.20 3.10 6.50 4.50
D E E1 e L L1 1
e
TOP VIEW
D c
A2
A
1
A1 SIDE VIEW
L1 END VIEW
L
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-153.
Doc. No. MD-2117 Rev. J
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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5115
MSOP 8-Lead 3.0 x 3.0mm (Z)
(1)(2)
SYMBOL
MIN
NOM
MAX
A A1 A2 b c D
E E1
1.10 0.05 0.75 0.22 0.13 2.90 4.80 2.90 0.40 3.00 4.90 3.00 0.65 BSC 0.60 0.95 REF 0.25 BSC 0 6 0.80 0.10 0.85 0.15 0.95 0.38 0.23 3.10 5.00 3.10
E E1 e L L1 L2
TOP VIEW
D
A
A2
DETAIL A
A1
e SIDE VIEW
b
c END VIEW
L2 L L1 DETAIL A
Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-187.
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
11
Doc. No. MD-2117 Rev. J
CAT5115
(1)(2)
TDFN 8-Pad 2 x 2.5mm (ZD7)
PIN#1 IDENTIFICATION
SYMBOL
MIN
NOM
MAX
A A1 A3 b D D2 E E2 e L
0.70 0.00 0.20 1.90 1.40 2.40 1.20 0.20
0.75 0.02 0.20 REF 0.25 2.00 1.50 2.50 1.30 0.50 TYP 0.30
0.80 0.05 0.30 2.10 1.60 2.60 1.40 0.40
A1
A3
Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC standard MO-229.
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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
CAT5115
EXAMPLE OF ORDERING INFORMATION (1)
Prefix CAT Device # 5115 Suffix V I -10 - G T3
Optional Company ID Product Number 5115
Temperature Range I = Industrial (-40C to 85C) Resistance -10: 10 k -50: 50 k -00: 100 k
Tape & Reel T: Tape & Reel 3: 3000/Reel Lead Finish Blank: Matte-Tin G: NiPdAu
Package L: PDIP V: SOIC Y: TSSOP Z: MSOP ZD7: TDFN(5)
ORDERING INFORMATION
ORDERABLE PART NUMBER CAT5115LI-10-G CAT5115LI-50-G CAT5115LI-00-G CAT5115VI-10-GT3 CAT5115VI-50-GT3 CAT5115VI-00-GT3 CAT5115YI-10-GT3 CAT5115YI-50-GT3 CAT5115YI-00-GT3 CAT5115ZI-10-GT3 CAT5115ZI-50-GT3 CAT5115ZI-00-GT3 CAT5115ZD7I-10-T3(6) CAT5115ZD7I-50-T3(6) CAT5115ZD7I-00-T3(6)
Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) This device used in the above example is a CAT5115VI-10-GT3 (SOIC, Industrial Temperature, 10k, NiPdAu, Tape & Reel). (4) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. (5) TDFN is not available in NiPdAu (-G) version. (6) Contact factory for package availability.
(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice
13
Doc. No. MD-2117 Rev. J
CAT5115
REVISION HISTORY
Date 25-Sep-03 10-Mar-04 29-Mar-04 12-Apr-04 31-Aug-04 Rev. B C D E F Description Changed designation to Preliminary. Updated Description. Updated Potentiometer Parameters table. Updated Potentiometer Parameters table. Changed Green Package marking for SOIC from W to V Updated Tape and Reel specs in Ordering Information Deleted ICC2 from DC Characteristics table Updated AC Operating Characteristics table Updated A.C. Timing diagram. Update Absolute Maximum Ratings table Update DC Electrical Characteristics tables Update AC Conditions of Test table Update all Package Outline Drawings Update Example of Ordering Information Update Ordering Part Number Update Functional Diagram Update Package Outline Drawings Change logo and fine print to ON Semiconductor Update Ordering Information
06-Jul-07
G
02-Feb-08 21-Nov-08 31-Jul-09
H I J
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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(c) 2009 SCILLC. All rights reserved. Characteristics subject to change without notice

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