CAT5114
32-Tap Digitally Programmable Potentiometer (DPP™)
FEATURES
APPLICATIONS
■ 32-position linear taper potentiometer
■ Automated product calibration
■ Non-volatile EEPROM wiper storage
■ Remote control adjustments
■ 10nA ultra-low standby current
■ Offset, gain and zero control
■ Single supply operation: 2.5V-6.0V
■ Tamper-proof calibrations
■ Increment Up/Down serial interface
■ Contrast, brightness and volume controls
Ω, 50kΩ
Ω and 100kΩ
Ω
■ Resistance values: 10kΩ
■ Motor controls and feedback systems
■ Available in PDIP, SOIC, TSSOP, MSOP and space
■ Programmable analog functions
saving 2x3mm TDFN packages
DESCRIPTION
The CAT5114 is a single digitally programmable
potentiometer (DPP™) 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.
new system values without effecting 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 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
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
Vcc (Supply Voltage)
U/D
INC
CS
R H / VH
31
5-BIT
UP/DOWN
COUNTER
VH /R H
30
R H / VH
UP/DOWN
(U/D)
INCREMENT
(INC)
29
Control
and
Memory
R W / VW
POR
R L / VL
DEVICE SELECT
(CS)
5-BIT
NONVOLATILE
MEMORY
ONE
28
OF
THIRTY TWO
DECODER
TRANSFER
GATES
VW / R W
RESISTOR
ARRAY
2
Vcc
GND
VSS
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
R L / VL
R W / VW
GENERAL
GENERAL
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
DETAILED
1
VL / R L
ELECTRONIC POTENTIOMETER
IMPLEMENTATION
Doc. No. 2007, Rev. M
CAT5114
PIN CONFIGURATION
PIN FUNCTIONS
DIP Package (P, L, GL)
INC
U/D
RH
GND
1
8
VCC
2
7
3
6
CS
RL
4
5
RW
TSSOP Package (U, Y, GY)
Pin Name
CS
VCC
RL
INC
Increment Control
RW
GND
RH
U/D
Up/Down Control
RH
Potentiometer High Terminal
GND
Ground
RW
Potentiometer Wiper Terminal
INC
U/D
SOIC Package (S, V, GV)
INC
U/D
RH
GND
1
2
3
4
8
7
6
5
MSOP Package (R, Z, GZ)
1
8
VCC
2
7
3
6
CS
RL
INC
U/D
RH
4
5
RW
GND
Function
1
2
8
7
VCC
CS
RL
Potentiometer Low Terminal
3
4
6
5
RL
RW
CS
Chip Select
VCC
Supply Voltage
TDFN Package (SP2, VP2, GP2)
INC
U/D
RH
GND
1
8
2
7
3
6
4
5
VCC
CS
RL
RW
Top View
PIN DESCRIPTIONS
INC
INC: Increment Control Input
RW: Wiper Potentiometer Terminal
The INC input moves the wiper in the up or down
direction determined by the condition of the U/D input.
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.
U/D
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 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.
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.
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.
Doc. No. 2007, Rev. M
CS
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.
2
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5114
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 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 R H and R L 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. The selected wiper position can be
stored in nonvolatile memory using the INC and
CS inputs.
wiper (depending on the state of the U/D input and fivebit 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.
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
OPERATION MODES
INC
CS
U/D
Operation
High to Low
Low
High
Wiper toward H
High to Low
Low
Low
Wiper toward L
High
Low to High
X
Store Wiper Position
Low
Low to High
X
No Store, Return to Standby
X
High
X
Standby
RH
CH
Rwi
RW
CW
CL
RL
Potentiometer Equivalent Circuit
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. 2007, Rev. M
CAT5114
Operating Ambient Temperature
Commercial (‘C’ or Blank suffix) ...... 0°C to +70°C
Industrial (‘I’ suffix) ...................... – 40°C to +85°C
Junction Temperature ..................................... +150°C
Storage Temperature ....................... –65°C to +150°C
Lead Soldering (10 sec max) .......................... +300°C
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
* 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.
RELIABILITY CHARACTERISTICS
Symbol
Parameter
Test Method
VZAP(1)
ILTH(1)(2)
ESD Susceptibility
Latch-Up
Data Retention
Endurance
MIL-STD-883, Test Method 3015
JEDEC Standard 17
MIL-STD-883, Test Method 1008
MIL-STD-883, Test Method 1003
TDR
NEND
Min
Operating Voltage Range
Supply Current (Increment)
ICC2
Supply Current (Write)
ISB1 (2)
Supply Current (Standby)
Max
2000
100
100
1,000,000
DC Electrical Characteristics: VCC = +2.5V to +6.0V unless otherwise specified
Power Supply
Symbol Parameter
Conditions
Min
VCC
ICC1
Typ
Units
Volts
mA
Years
Stores
Typ
2.5
Max
Units
6.0
100
50
1
500
mA
µA
1
µA
Max
Units
2
0
10
–10
VCC
0.8
µA
µA
V
V
VCC x 0.7
VCC + 0.3
V
-0.3
VCC x 0.2
V
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
0.01
V
µA
Logic Inputs
Symbol
Parameter
Conditions
IIH
IIL
VIH1
VIL1
Input Leakage Current
Input Leakage Current
TTL High Level Input Voltage
TTL Low Level Input Voltage
VIN = VCC
VIN = 0V
4.5V ≤ VCC ≤ 5.5V
VIH2
CMOS High Level Input Voltage
2.5V ≤ VCC ≤ 6V
VIL2
CMOS Low Level Input Voltage
NOTES:
(1)
(2)
(3)
(4)
Min
Typ
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.
Doc. No. 2007, Rev. M
4
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5114
Potentiometer Parameters
Symbol
RPOT
Parameter
Potentiometer Resistance
Conditions
Min
Typ
-10 Device
10
-50 Device
50
-00 Device
100
Max
Units
kΩ
± 20
%
0
VCC
V
0
VCC
V
RTOL
Pot Resistance Tolerance
VRH
Voltage on RH pin
VRL
Voltage on RL pin
RES
Resolution
INL
Integral Linearity Error
IW ≤ 2µA
0.5
1
LSB
DNL
Differential Linearity Error
IW ≤ 2µA
0.25
0.5
LSB
RWi
Wiper Resistance
VCC = 5V, IW = 1mA
400
Ω
1
kΩ
1
mA
3.2
VCC = 2.5V, IW = 1mA
IW
Wiper Current
TCRPOT
TC of Pot Resistance
TCRATIO
Ratiometric TC
RISO
Isolation Resistance
VN
Noise
CH/CL/CW
fc
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ppm/oC
300
20
100kHz / 1kHz
Potentiometer Capacitances
Frequency Response
%
Passive Attenuator, 10kΩ
5
ppm/oC
TBD
Ω
8/24
nV/√Hz
8/8/25
pF
1.7
MHz
Doc. No. 2007, Rev. M
CAT5114
AC CONDITIONS OF TEST
VCC Range
2.5V ≤ VCC ≤ 6V
Input Pulse Levels
0.2VCC to 0.7VCC
Input Rise and Fall Times
10ns
Input Reference Levels
0.5VCC
AC OPERATING CHARACTERISTICS:
VCC = +2.5V to +6.0V, VH = VCC, VL = 0V, unless otherwise specified
Symbol
Parameter
Min
tCI
tDI
tID
tIL
tIH
tIC
tCPH
tCPH
tIW
tCYC
tR, tF(2)
tPU(2)
tWR
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
100
50
100
250
250
1
100
10
Typ(1)
Max
1
5
5
500
1
10
Units
ns
ns
ns
ns
ns
µs
ns
ms
µs
µs
µs
msec
ms
1
A. C. TIMING
CS
(store)
tCYC
tCI
tIL
tIC
tIH
tCPH
90%
INC
90%
10%
tDI
tID
tF
U/D
tR
MI (3)
tIW
RW
(1) Typical values are for TA=25oC 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.
Doc. No. 2007, Rev. M
6
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5114
APPLICATION INFORMATION
Potentiometer Configurations
(a) resistive divider
(b) variable resistance
(c) two-port
Applications
3
V1
(-)
2
+
A1
R3
1
R4
+5V
–
+5V
DPP
+5V
8
2
9
1
R1
7
R2
10
R2
4
–
+5V
A3
8
+
6
7
11
4
V2
(+)
5
CAT5114
A2
–
R3
R4
RB
{
{
R1
6
5
3
}
}
pRPOT
7
4
8
3
(1-p)RPOT
555
R2
6
+2.5V
7
+
RA
1
VO
4
CAT5114
8
2
5
2
1
C
.01µF
.01µF,
.003µF
Programmable Instrumentation Amplifier
Programmable Sq. Wave Oscillator (555)
+5V
100k
8
2
CAT5114
1
7
V0 (REG)
R1
2952
VIN (UNREG)
11k
SHUTDOWN
1µF
SD
GND
FB
.1
4
6.8µF
6
+5V
R2
+5V
820
2
8
2
3
5
CAT5114
4
IS
R3
1
7
10k
3
–
+
(1-p)R
7
4
330
1M
3
5
+5V
10k
6
2
A1
3
–
+
7 6
4 A2
VO
LT1097
6
+2.5V
Programmable Voltage Regulator
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
pR
330
1.23V
}
}
VOUT
Programmable I to V convertor
7
Doc. No. 2007, Rev. M
CAT5114
APPLICATION INFORMATION
R3
100k
C1
.001
R1
50k
1 F
+5V
C2
VS
.001
2
–
3
+
+5V
7
6
4
VO
A1
8
2
R2
10k
1
7
+2.5V
4
CAT5114
Programmable Bandpass Filter
+5V
IC1
393
IC2
74HC132
2
1
OSC
CLO
–
+ 3
R1
VLL
R2
–
+
7
10k
0.1µF
CHI
6
5
R3
+5V
VUL
+5V
+5V
8
2
6
1
10k
7
4
IC3
CAT5114
5
3
–
VO
+
AI
IC4
VS +2.5V
2.5V < VO < 5V
0 < VS < 2.5V
Automatic Gain Control
Doc. No. 2007, Rev. M
8
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5114
8-PAD TDFN 2 x 3 mm PACKAGE (SP2, VP2, GP2)
A
0.75 + 0.05 MAX.
3.00 + 0.10
(S)
B
2X
0.15C
PIN 1 INDEX AREA
2.00 + 0.10
(S)
2X
0.15C
0.0 - 0.05
1.50 + 0.10
0.10C
0.20 REF.
8X
0.08C
C
1
D
D
D
D
D
D
2
D
E
G
H
J
K
Top Side Marking
1
2
3
4
5
6
7
8
1.85 + 0.10
Top Marking
Device
CAT5114SP2-00
CAT5114SP2-10
CAT5114SP2-50
CAT5114VP2-00
CAT5114VP2-10
CAT5114VP2-50
DAP SIZE 1.7 X 2.1
C0.35
1
4
0.25 + 0.05 (8X)
8X
0.10 M C AB
0.30 + 0.10 (8X)
0.50 TYP. (6X)
1.50 REF. (2X)
NOTE:
1. ALL DIMENSIONS IN MM. ANGLES IN DEGREES.
2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMNALS. COPLANARITY SHALL NOT EXCEED 0.08 MM.
3. WARPAGE SHALL NOT EXCEED 0.10 MM.
4. PACKAGE LENGTH / PACKAGE WIDTH ARE NOT CONSIDERED AS SPECIAL CHARACTERISTIC.
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc. No. 2007, Rev. M
CAT5114
ORDERING INFORMATION
Prefix
CAT
Optional
Company ID
Device #
5114
Suffix
S
I
-10
Resistance
-10: 10kohms
-50: 50kohms
-00: 100kohms
Product Number
TE13
Tape & Reel: TE13
SOIC: 2000/Reel
TSSOP: 2000/Reel
MSOP: 2500/Reel
Tape & Reel: TE7
TDFN: 2000/Reel
Package
P: PDIP
S: SOIC
U: TSSOP
R: MSOP
SP2: TDFN
L: PDIP (Lead free, Halogen free)
V: SOIC (Lead free, Halogen free)
Y: TSSOP (Lead free, Halogen free)
Z: MSOP (Lead free, Halogen free)
VP2: TDFN (Lead free, Halogen free)
GL: PDIP (Lead-free, Halogen-free, NiPdAu lead plating)
GV: SOIC, JEDEC (Lead-free, Halogen-free, NiPdAu lead plating)
GY: TSSOP (Lead-free, Halogen-free, NiPdAu lead plating)
GZ: MSOP (Lead-free, Halogen-free, NiPdAu lead plating)
GP2: TDFN (Lead-free, Halogen-free, NiPdAu lead plating)
Notes:
(1) The device used in the above example is a CAT5114 SI-10TE13 (SOIC, 10K Ohms, Industrial Temperature, Tape & Reel)
Doc. No. 2007, Rev. M
10
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
REVISION HISTORY
Date
Rev.
Reason
10/9/2003
G
Revised Features
Revised DC Electrical Characteristics
3/10/2004
H
Update Potentiometer Parameters
3/29/2004
I
Changed Green Package marking for SOIC from W to V
Updated Ordering Information (removed old 5112
references)
4/12/2004
J
Updated Reel Ordering Information
8/31/2004
K
Added TDFN package in all areas
04/08/2005
L
Update Ordering Information
07/28/2005
M
Update Pin Configuration
Application Information
Ordering Information
Copyrights, Trademarks and Patents
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
DPP ™
AE2 ™
MiniPot™
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.caalyst-semiconductor.com
Publication #:
Revison:
Issue date:
2007
M
07/28/05