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CAT5113
100-Tap Digitally Programmable Potentiometer (DPPTM) FEATURES
I 100-position linear taper potentiometer I Non-volatile EEPROM wiper storage I 10nA ultra-low standby current I Single supply operation: 2.5V-6.0V I Increment Up/Down serial interface I Resistance values: 1k ,10k , 50k and 100k I Available in PDIP, SOIC, TSSOP and MSOP packages
H
GEN FR ALO
EE
LE
APPLICATIONS
I Automated product calibration I Remote control adjustments I Offset, gain and zero control I Tamper-proof calibrations
A D F R E ETM
I Contrast, brightness and volume controls I Motor controls and feedback systems I Programmable analog functions
DESCRIPTION
The CAT5113 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 CAT5113 contains a 100-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 effecting the stored setting. Wiper-control of the CAT5113 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 two-terminal variable resistor. DPPs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing.
FUNCTIONAL DIAGRAM
VH /R H
Vcc (Supply Voltage)
U/D INC CS
7-BIT UP/DOWN COUNTER
99
R H / VH
98
R H / VH
97 7-BIT NONVOLATILE MEMORY ONE 28 OF ONE HUNDRED DECODER
UP/DOWN (U/D) INCREMENT (INC) DEVICE SELECT (CS)
POR
Control and Memory
R W / VW
TRANSFER GATES
RESISTOR ARRAY
VW / R W
2
R L / VL
Vcc
VSS
STORE AND RECALL CONTROL CIRCUITRY
1
GND GENERAL
0 R L / VL R W / VW
VL / R L
GENERAL
DETAILED
ELECTRONIC POTENTIOMETER IMPLEMENTATION
(c) 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice
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Doc. No. 2009, Rev. R
CAT5113
PIN CONFIGURATION
DIP Package (P, L)
INC U/D RH GND 1 2 3 4 8 7 6 5 VCC CS RL RW
PIN FUNCTIONS
TSSOP Package (U, Y)
CS VCC INC U/D 1 2 3 4 8 7 6 5 RL RW GND RH
Pin Name INC U/D RH GND
Function Increment Control Up/Down Control Potentiometer High Terminal Ground Potentiometer Wiper Terminal Potentiometer Low Terminal Chip Select Supply Voltage
SOIC Package (S, V)
INC U/D RH GND 1 2 3 4 8 7 6 5 VCC CS RL RW
MSOP Package (R, Z)
INC U/D RH GND 1 2 3 4 8 7 6 5 VCC CS RL RW
RW RL CS VCC
PIN DESCRIPTIONS
INC: 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 D The U/D input controls the direction of the wiper movement. When in a high state and CS is low, any highto-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. R L and R H are electrically interchangeable. CS: CS Chip Select The chip select input is used to activate the control input of the CAT5113 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 CAT5113 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 100 available tap positions including the resistor end points, RH and RL. There are 99 resistor elements connected in series between the RH and RL terminals. The wiper terminal is connected to one of the 100 taps and controlled by three inputs, INC, U/D and CS. These inputs control a sevenbit up/down counter whose output is decoded to select the wiper position. The selected wiper position can be stored in nonvolatile memory using the INC and CS inputs. With CS set LOW the CAT5113 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 CAT5113 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 CAT5113 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.
Doc. No. 2009, Rev. R
2
CAT5113
OPERATION MODES
RH
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
Operation Wiper toward H Wiper toward L Store Wiper Position No Store, Return to Standby Standby
CH
Rwi RWB CW
CL
RL
Potentiometer Equivalent Circuit
ABSOLUTE MAXIMUM RATINGS Supply Voltage VCC to GND ...................................... -0.5V to +7V Inputs CS to GND .............................-0.5V to VCC +0.5V INC to GND ............................-0.5V to VCC +0.5V U/D to GND ............................-0.5V to VCC +0.5V H to GND ................................-0.5V to VCC +0.5V L to GND ................................-0.5V to VCC +0.5V W to GND ............................... -0.5V to VCC +0.5V RELIABILITY CHARACTERISTICS Symbol
VZAP(1) ILTH(1)(2) TDR NEND
Operating Ambient Temperature Commercial (`C' or Blank suffix) ...... 0C to +70C Industrial (`I' suffix) ...................... - 40C to +85C Junction Temperature ..................................... +150C Storage Temperature ....................... -65C to +150C Lead Soldering (10 sec max) .......................... +300C
* Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Absolute Maximum Ratings are limited values applied individually while other parameters are within specified operating conditions, and functional operation at any of these conditions is NOT implied. Device performance and reliability may be impaired by exposure to absolute rating conditions for extended periods of time.
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
Volts mA Years Stores
DC Electrical Characteristics: VCC = +2.5V to +6.0V unless otherwise specified Power Supply Symbol Parameter Conditions Min
VCC ICC1 ICC2 ISB1 (2) Operating Voltage Range Supply Current (Increment) Supply Current (Write) Supply Current (Standby) 2.5 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
Typ
Max
6.0 100 50 1 500
Units
V A mA A A
0.01
1
Logic Inputs Symbol
IIH IIL VIH1 VIL1 VIH2 VIL2
NOTES: (1) (2) (3) (4)
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
Typ
Max
10 -10 VCC 0.8 VCC + 0.3 VCC x 0.2
Units
A A V V V V
2 0 VCC x 0.7 -0.3
This parameter is tested initially and after a design or process change that affects the parameter. Latch-up protection is provided for stresses up to 100mA on address and data pins from -1V to VCC + 1V IW=source or sink These parameters are periodically sampled and are not 100% tested.
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Doc. No. 2009, Rev. R
CAT5113
Potentiometer Parameters Symbol RPOT Parameter Potentiometer Resistance Conditions -01 Device -50 Device -50 Device -00 Device 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) -4.4 300 20 0 0 1% 0.5 0.25 1 0.5 400 1 4.4 Min Typ 1 50 50 100 20 VCC VCC % V V % LSB LSB k mA ppm/oC ppm/oC nV/ Hz pF MHz k Max Units
Note: 1. This parameter is not 100% tested.
Doc. No. 2009, Rev. R
4
CAT5113
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(2) tPU(2) tWR
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)
-- -- -- -- -- -- -- -- 1 -- -- -- 5
Max
-- -- -- -- -- -- -- -- 5 -- 500 1 10
Units
ns ns ns ns ns s ns ms s s s msec ms
A. C. TIMING
CS tCYC tIL tIH
(store)
tCI INC
tIC
tCPH
90% 10% 90%
tDI
tID
U/D
tF
tR
tIW RW
MI (3)
(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.
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Doc. No. 2009, Rev. R
CAT5113 APPLICATIONS INFORMATION
Potentiometer Configurations
(a) resistive divider
(b) variable resistance
(c) two-port
Applications
A1
1
V1 (-)
3
+ -
R3
R4
+5V +5V
2
+5V
DPP 9
+5V R2 R2
10
8
- +
4
A3
8
U/
U/
R1
VO
2 1 7 4
RA
11
RB
CAT5114/5113 V2 (+)
6
- +
A2
7
R3
R4
+2.5V
{ {
R1
6
5 3
} }
pRPOT (1-p)RPOT
7
4
8 3
R2
6 2
555
5 1 .01 F
5
C
.01 F, .003 F
Programmable Instrumentation Amplifier
Programmable Sq. Wave Oscillator (555)
IC3A 1/4 74HC132 OSC +5V 10k 0.01 F CS +200mV 20k
7
- + ICIB
6 5
1.00V = VREF
U/D INC CS
+ -
VCORR 499k
2
499k +5V
Sensor 499k CAT5112/5111 IC2
3
- +
4 11 1
VOUT = 1V + 1mV ICIA 100mV = VSHIFT
-5V 499k
1V + 50mV VSENSR
Sensor Auto Referencing Circuit
Doc. No. 2009, Rev. R
6
APPLICATIONS INFORMATION
100k
+5V 8 U/ 2 1 CAT5114/5113
CAT5113
VOUT
V0 (REG)
R1 11k 6.8 F .1
7 4
2952
VIN (UNREG)
SHUTDOWN 1F SD GND FB 1.23V
6 5 +5V 2
} }
330
pR
(1-p)R 3
330
1M
R2 820
+5V 6 10k A1 3 2
- +
7 4
- +
7 4
+5V 8 U/ 2 1 7 Control and Memory POR 4 5 6 3 R3 10k
3
6 A2
VO
IS LT1097
+2.5V
CAT5114/5113
Programmable Voltage Regulator
Programmable I to V convertor
CAT5112/5111 R1 100k R1 100k 2 R1 +2.5V 100k R1 100k 5 6 +2.5V A1=A2=1/4 LMC6064A 7 A2 3 +5V
C1 .001 1F R1 50k C2
R3 100k
+5V +5V
+5V 7 6 4 A1
Serial Bus
- +
VS
- +
41 11
R 2.5k
IS
VS
+5V .001
2 3
- +
VO
+2.5V CAT5114/5113
Programmable Bandpass Filter
+5V IC2 74HC132 OSC
1
Programmable Current Source/Sink
IC1 393
- +
2 3
VLL
R1
CLO
R2
7
10k
0.1 F CHI IC3 CAT5114/5113 +5V
8 2 U/D 1 INC 7 CS 4 6
- +
6
R3 +5V VUL
5
+5V
10k
3
5
- +
VO AI IC4 2.5V < VO < 5V
VS +2.5V 0 < VS < 2.5V
Automatic Gain Control
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Doc. No. 2009, Rev. R
-
R2 10k
+
CAT5113 ORDERING INFORMATION
Prefix CAT Device # 5113 Suffix S I -10 TE13
Optional Company ID
Product Number 5111: Buffered 5113: Unbuffered Package P: PDIP S: SOIC U: TSSOP R: MSOP L: PDIP (Lead free, Halogen free) V: SOIC (Lead free, Halogen free) Y: TSSOP (Lead free, Halogen free) Z: MSOP (Lead free, Halogen free)
Resistance -01: 1kohms -10: 10kohms -50: 50kohms -00: 100kohms
Tape & Reel TE13 SOIC: 2000/Reel TSSOP: 2000/Reel MSOP: 2500/Reel
Notes: (1) The device used in the above example is a CAT5113 SI-10TE13 (SOIC, 10K Ohms, Industrial Temperature, Tape & Reel)
Doc. No. 2009, Rev. R
8
CAT5113 REVISION HISTORY
Date 10/9/2003 Rev. M Reason Revised Features Revised DC Electrical Characteristics 3/10/2004 3/29/2004 4/02/2004 4/8/2004 1/25/2005 N O P Q R Updated Potentiometer Parameters Changed Green Package marking for SOIC from W to V Add 1KW version to data sheet Eliminated data sheet designation Updated Tape and Reel specs in Ordering Information Updated Potentiometer Parameters
Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
DPP TM AE2 TM
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. For a complete list of patents issued to Catalyst Semiconductor contact the Company's corporate office at 408.542.1000.
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 1250 Borregas Avenue Sunnyvale, CA 94089 Phone: 408.542.1000 Fax: 408.542.1200 www.catsemi.com
Publication #: Revison: Issue date:
2009 R 1/25/04
9
Doc. No. 2009, Rev. R

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