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CAT5114 32-Tap Digitally Programmable Potentiometer (DPPTM)
FEATURES
32-position linear taper potentiometer Non-volatile EEPROM wiper storage Low standby current 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 CAT5114 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 CAT5114 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 setting, stored in nonvolatile memory, is not lost when the device is powered down and is automatically reinstated when power is returned. The wiper can be adjusted to test new system values without affecting the stored setting. Wiper-control of the CAT5114 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 and also store the wiper position prior to power down. The digitally programmable potentiometer can be used as a three-terminal resistive divider or as a twoterminal variable resistor. DPPs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing.
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 14.
FUNCTIONAL DIAGRAM
VCC RH/VH U/D INC CS Power On Recall RL/VL VCC GND
STORE AND RECALL CONTROL CIRCUITRY 5-BIT NONVOLATILE MEMORY
U/D INC CS
5-BIT UP/DOWN COUNTER
31 30
RH/VH
RH/VH
29 28 32-POSITION DECODER 2 1 0 TRANSFER GATES RESISTOR ARRAY
Control and Memory
RW/VW
RW/VW
GND
RL/VL RW/VW RL/VL Electronic Potentiometer Implementation
Doc. No. MD-2007 Rev. O
General
Detailed
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
1
CAT5114
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 RW RL CS VCC Increment Control Up/Down Control Potentiometer High Terminal Buffered Wiper Terminal Potentiometer Low Terminal Chip Select Supply Voltage
CAT
GND Ground
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, VP2) 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 will cause the wiper to high-to-low transition on INC move one increment toward the RH terminal. When in a low state and CS is low, any high-to-low transition will cause the wiper to move one increment on INC 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 CAT5114 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 CAT5114 operates like a digitally controlled potentiometer with RH and RL equivalent to the high and low terminals and RW equivalent to the mecha- nical 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 seven-bit up/down counter whose output is decoded to select the wiper position. The selected wiper position can be stored in non-volatile memory using the INC and CS inputs. With CS set LOW the CAT5114 is selected and will respond to the U/D and INC inputs. HIGH to LOW transitions on INC wil increment or decrement the wiper (depending on the state of the U/D input and seven-bit counter). The wiper, when at either fixed terminal, acts like its mechanical equivalent and does not move beyond the last position. The value of the counter is stored in nonvolatile memory whenever CS transitions HIGH while the INC input is also HIGH. When the CAT5114 is powered-down, the last stored wiper counter position is maintained in the nonvolatile memory. When power is restored, the contents of the memory are recalled and the counter is set to the value stored. With INC set low, the CAT5114 may be de-selected and powered down without storing the current wiper position in nonvolatile memory. This allows the system to always power up to a preset value stored in nonvolatile memory.
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(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
Doc. No. MD-2007 Rev. O
CAT5114
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)
RH
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)
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
ILTH (2)(3) TDR NEND
DC ELECTRICAL CHARACTERISTICS VCC = +2.5V to +6V unless otherwise specified Power Supply Symbol VCC ICC1 ICC2 ISB1(3) Parameter Operating Voltage Range Supply Current (Increment) Supply Current (Write) Supply Current (Standby) VCC = 6V, f = 1MHz, IW = 0 VCC = 6V, f = 250kHz, IW = 0 Programming, VCC = 6V VCC = 3V CS = VCC - 0.3V U/D, INC = VCC - 0.3V or GND Conditions Min 2.5 - - - - - Typ - - - - - - Max 6.0 100 50 1000 500 1 Units V A A 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) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
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Doc. No. MD-2007 Rev. O
CAT5114
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 -4.4 300 20 0 0 3.2 0.5 0.25 70 150 1 0.5 200 400 4.4 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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CAT5114
AC CONDITIONS OF TEST VCC Range Input Pulse Levels Input Rise and Fall Times Input Reference Levels 2.5V VCC 6V 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 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 (NO STORE) CS Deselect Time (STORE) INC to VOUT Change INC Cycle Time INC Input Rise and Fall Time Power-up to Wiper Stable Store Cycle
Min 100 50 100 250 250 1 100 10 - 1 - - -
Typ - - - - - - - - 1 - - - 5
(1)
Max - - - - - - - - 5 - 500 1 10
Units ns ns ns ns ns s ns ms s s s ms ms
tWR
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) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
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Doc. No. MD-2007 Rev. O
CAT5114
APPLICATIONS INFORMATION
POTENTIOMETER CONFIGURATION
(a) resistive divider
(b) variable resistance
(c) two-port
APPLICATIONS
3
V1 (-)
+ -
A1
1
R3
R4
+5V
2 8
+5V R1 RA
6
2
+5V
2 8
9
+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
CAT5114
RB R2
6
555
CAT5113/5114 V2 (+)
5
- +
A2
7
R3
+2.5V A1 = A2 = A3 = 1/4 LM6064 R2 = R3 = R4 = 5k RPOT = 10k
C 0.01F 0.003F
5 2 1
0.01F
Programmable Instrumentation Amplifier
Programmable Sq. Wave Oscillator (555)
100k
2
+5V
8 1 DPP CAT5113/5114 7 4
VOUT VIN (UNREG) SHUTDOWN +5V
2 8 3
VO (REG) R1 11k
2952 SD GND FB
1.23V
0.1F
6.8F
330
pR (1-p)R
6 3 5
330
1M
1F
R2 820
2
+5V
+5V
-
CAT5113/5114
5 6
7 6
A1
10k
2
- +
7 6
A2
1 DPP 7 4
R3 10k
IS
3
+
VO
4
3
4
LT1097
+2.5V
Programmable Voltage Regulator
Programmable I to V Convertor
Doc. No. MD-2007 Rev. O
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(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
CAT5114
C1 0.001F 1F VS 50k R1 C2 0.001F R2 10k
R3 100k
2
+5V
-
3
7 6
+5V
2 8
+
VO
4
A1
1 DPP 7 4
+2.5V
CAT5113/5114
Programmable Bandpass Filter
+5V
IC2 74HC132 OSC
CLO
IC1 393
1
- + - +
2
VLL
R1
3
R2
10k
CHI 7
6
0.1F
R3
5
VUL
+5V
IC3 CAT5114 +5V
2 8
+5V
6
10k
3
4
VS +2.5V 0 VS 2.5V
Automatic Gain Control
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
+
7
1 DPP 7
-
VO AI IC4 2.5 VO 5V
Doc. No. MD-2007 Rev. O
5
CAT5114
PACKAGE OUTLINE DRAWING
PDIP 8-Lead 300mils (L)
(1)(2)
SYMBOL A A1 A2 b b2
E1
MIN 0.38 2.92 0.36 1.14 0.20 9.02 7.62 6.10 7.87 2.93
NOM
MAX 5.33
3.30 0.46 1.52 0.25 9.27 7.87 2.54 BSC 6.35 3.30
4.95 0.56 1.78 0.36 10.16 8.25 7.11 10.92 3.80
c D E e E1 eB L
PIN # 1 IDENTIFICATION D
TOP VIEW
E
A
A2
A1 b2 L c
e SIDE VIEW
b
eB
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. (2) Complies with JEDEC MS-001.
Doc. No. MD-2007 Rev. O
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(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
CAT5114
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
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 MS-012.
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
9
Doc. No. MD-2007 Rev. O
CAT5114
TSSOP 8-Lead 4.4mm (Y)
(1)(2)
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
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 MO-153.
Doc. No. MD-2007 Rev. O
10
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
CAT5114
MSOP 8-Lead 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
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 MS-187.
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
11
Doc. No. MD-2007 Rev. O
CAT5114
TDFN 8-Pad 2 x 2.5mm (ZD7)
(1)(2)
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
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. (2) Complies with JEDEC MO-229.
Doc. No. MD-2007 Rev. O
12
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
CAT5114
TDFN 8-Pad 2 x 3mm (VP2)
(1)(2)
D
A
e
b
E
E2 PIN#1 IDENTIFICATION
A1 PIN#1 INDEX AREA D2 L
TOP VIEW
SIDE VIEW
BOTTOM VIEW
SYMBO L A A1 A2 A3 b D D2 E E2 e L
MIN 0.70 0.00 0.45 0.20 1.90 1.30 2.90 1.20 0.20
NOM 0.75 0.02 0.55 0.20 REF 0.25 2.00 1.40 3.00 1.30 050 TYP 0.30
MAX 0.80 0.05 0.65 0.30 2.10 1.50 3.10 1.40 0.40
A2 A3
FRONT 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. (2) Complies with JEDEC MO-229.
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
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Doc. No. MD-2007 Rev. O
CAT5114
EXAMPLE OF ORDERING INFORMATION (1)
Prefix CAT Device # 5114 Suffix V I -10 -G T3
Optional Company ID Product Number 5114
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 VP2: TDFN (5)
ORDERING PART NUMBER
CAT5114LI-10-G CAT5114LI-50-G CAT5114LI-00-G CAT5114VI-10-G CAT5114VI-50-G CAT5114VI-00-G CAT5114YI-10-G CAT5114YI-50-G CAT5114YI-00-G CAT5114ZI-10-G CAT5114ZI-50-G CAT5114ZI-00-G CAT5114ZD7I-10-G CAT5114 ZD7I-50-G (5) CAT5114 ZD7I-00-G (5) CAT5114VP2I-10-G (5) CAT5114VP2I-50-G (5) CAT5114VP2I-00-G (5)
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 CAT5114VI-10-GT3 (SOIC, Industrial Temperature, 10k, NiPdAu, Tape & Reel) (4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. (5) Contact factory for package availability.
Doc. No. MD-2007 Rev. O
14
(c) Catalyst Semiconductor, Inc. Characteristics subject to change without notice
REVISION HISTORY
Date 10/09/2003 03/10/2004 03/29/2004 04/12/2004 08/31/2004 04/08/2005 07/28/2005 Rev. G H I J K L M Reason Revised Features Revised DC Electrical Characteristics Updated Potentiometer Parameters Changed Green Package marking for SOIC from W to V Updated Ordering Information (removed old 5112 references) Updated Reel Ordering Information Added TDFN package in all areas Updated Ordering Information Updated Pin Configuration, Application Information, and Ordering Information Update Features Add TDFN (ZD7) Update Absolute Maximum Ratings table Update Potentiometer Characteristics table Update all Package Outline Drawings Update Example of Ordering Information note 2. Update Ordering Part Number Update MSOP Package Outline Drawing
07/06/2007
N
08/07/2007
O
Copyrights, Trademarks and Patents (c) Catalyst Semiconductor, Inc. Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Beyond MemoryTM, DPPTM, EZDimTM, LDDTM, MiniPotTM and Quad-ModeTM Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor 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 Catalyst Semiconductor product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete.
Catalyst Semiconductor, Inc. Corporate Headquarters 2975 Stender Way Santa Clara, CA 95054 Phone: 408.542.1000 Fax: 408.542.1200 www.catsemi.com
Document No: MD-2007 Revision: O Issue date: 08/07/07

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