CAT5115ZI10 [CATALYST]
Digital Potentiometer (POT), 32-Tap 10 kΩ, MSOP 8, 3x3, 96-TUBE;
| 型号： | CAT5115ZI10 |
| 厂家： | 
CATALYST SEMICONDUCTOR |
| 描述： | Digital Potentiometer (POT), 32-Tap 10 kΩ, MSOP 8, 3x3, 96-TUBE 光电二极管 转换器 电阻器 |
| 文件： | 总9页 (文件大小：92K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
E
Preliminary Information
CAT5115
32-Tap Digitally Programmable Potentiometer (DPP™)
TM
FEATURES
APPLICATIONS
■ 32-position, linear-taper potentiometer
■ Low power CMOS technology
■ Automated product calibration
■ Remote control adjustments
■ Offset, gain and zero control
■ Tamper-proof calibrations
■ Single supply operation: 2.5V-5.5V
■ Increment up/down serial interface
■ Resistance values: 10kΩ, 50kΩ and 100kΩ
■ Available in PDIP, SOIC, TSSOP and MSOP packages
■ Contrast, brightness and volume controls
■ Motor controls and feedback systems
■ Programmable analog functions
DESCRIPTION
determined by the logic state of the U/D input. The CS
input is used to select the device.
The CAT5115 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.
The digitally programmable potentiometer can be
used as a three-terminal resistive divider or as a
two-terminalvariableresistor.DPPsbringvariabilityand
programmability to a wide variety of applications
including control, parameter adjustments, and
signal processing.
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
15atpowerup. Thetappositionisnotstoredinmemory.
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
For a pin-compatible device that recalls a stored tap
position on power-up refer to the CAT5114 data sheet.
FUNCTIONAL DIAGRAM
RH /VH
Vcc (Supply Voltage)
31
30
U/D
INC
CS
VH /RH
5-BIT
UP/DOWN
COUNTER
RH /VH
UP/DOWN
29
28
(U/D)
ONE
OF
Control
and
Memory
INCREMENT
R
/
VW
THIRTY TWO
DECODER
W
RW/VW
TRANSFER
GATES
RESISTOR
ARRAY
(INC)
DEVICE SELECT
2
1
0
(CS)
RL /VL
POR
CONTROL
CIRCUITRY
Vcc
GND
V
SS
VL / RL
RL /VL
RW/VW
ELECTRONIC POTENTIOMETER
IMPLEMENTATION
GENERAL
DETAILED
© 2004 by Catalyst Semiconductor, Inc.
Doc. No. 2117, Rev. F
1
Characteristics subject to change without notice
CAT5115
PIN CONFIGURATION
DIP Package (P, L)
PIN FUNCTIONS
TSSOP Package (U, Y)
Pin Name
Function
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
RL
CS
V
INC
Increment Control
Up/Down Control
INC
CC
V
CC
RW
CS
U/D
U/D
GND
RH
INC
R
H
R
L
GND
R
W
U/D
R
H
Potentiometer High Terminal
Ground
GND
SOIC Package (S, V)
MSOP Package (R, Z)
R
R
Potentiometer Wiper Terminal
Potentiometer Low Terminal
Chip Select
W
L
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
INC
U/D
RH
VCC
CS
RL
INC
CC
CS
U/D
R
H
R
L
CS
GND
RW
GND
R
W
VCC
Supply Voltage
PIN DESCRIPTIONS
INC: Increment Control Input
CS: Chip Select
The INC input moves the wiper in the up or down
direction determined by the condition of the U/D input.
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.
U/D: Up/Down Control Input
The U/D input controls the direction of the wiper
movement. When in a high state and CSis 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.
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.
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.
With CS set LOW the CAT5115 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 five-
bit counter). The wiper, when at either fixed terminal,
acts like its mechanical equivalent and does not move
beyondthelastposition.WhentheCAT5115ispowered-
down,thewiperpositionisreset.Whenpowerisrestored,
the counter is set to the mid point, tap 15.
RW: Wiper Potentiometer Terminal
RW is the wiper terminal of the potentiometer. Its position
ontheresistorarrayiscontrolledbythecontrol inputs,INC,
U/D and CS. Voltage applied to the RW terminal cannot
exceedthesupplyvoltage, VCC orgobelowground, 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.
Doc. No. 2117, Rev. F
2
CAT5115
OPERATION MODES
RH
INCB
High to Low
High to Low
X
CSB
U/DB
High
Operation
CH
Rwi
Low
Low
High
Wiper toward H
Wiper toward L
Standby
RW
CW
Low
X
CL
Potentiometer
Equivalent Circuit
RL
Operating Ambient Temperature
ABSOLUTE MAXIMUM RATINGS
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
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
HtoGND ................................–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
maybeimpairedbyexposuretoabsoluteratingconditionsforextended
periods of time.
RELIABILITY CHARACTERISTICS
Symbol
Parameter
Test Method
Min
Typ
Max
Units
(1)
VZAP
ESD Susceptibility
Latch-Up
MIL-STD-883, Test Method 3015
JEDEC Standard 17
2000
100
Volts
mA
(1)(2)
ILTH
TDR
Data Retention
Endurance
MIL-STD-883, Test Method 1008
MIL-STD-883, Test Method 1003
100
Years
Stores
NEND
1,000,000
DC Electrical Characteristics: VCC = +2.5V to +5.5V unless otherwise specified
Power Supply
Symbol Parameter
Conditions
Min
2.5
Typ
—
Max
5.5
Units
V
VCC
ICC1
Operating Voltage Range
Supply Current (Increment)
Supply Current (Standby)
VCC = 5.5V, f = 1MHz, IW=0
VCC = 5.5V, f = 250kHz, IW=0
—
—
—
—
100
50
µA
(2)
ISB1
CS=VCC-0.3V
—
—
1
µA
U/D, INC=VCC-0.3V or GND
Logic Inputs
Symbol Parameter
Conditions
Min
Typ
Max
Units
IIH
Input Leakage Current
VIN = VCC
—
—
—
—
—
—
—
10
–10
µA
µA
V
IIL
Input Leakage Current
VIN = 0V
—
VIH1
VIL1
VIH2
VIL2
TTL High Level Input Voltage
TTL Low Level Input Voltage
CMOS High Level Input Voltage
CMOS Low Level Input Voltage
4.5V ≤ VCC ≤ 5.5V
2
0
VCC
0.8
V
2.5V ≤ VCC ≤ 5.5V
VCC x 0.7
-0.3
VCC + 0.3
VCC x 0.2
V
V
NOTES: (1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Latch-up protection is provided for stresses up to 100mA on address and data pins from –1V to VCC + 1V
(3) IW=source or sink
(4) These parameters are periodically sampled and are not 100% tested.
Doc. No. 2117, Rev. F
3
CAT5115
Potentiometer Parameters
Symbol
Parameter
Conditions
Min
Typ
Max Units
RPOT
Potentiometer Resistance
-10 Device
-50 Device
-00 Device
10
50
kΩ
100
Pot Resistance Tolerance
Voltage on RH pin
± 20
VCC
VCC
%
V
VRH
VRL
0
0
Voltage on RL pin
Resolution
V
3.2
%
INL
DNL
RWi
Integral Linearity Error
Differential Linearity Error
Wiper Resistance
I
W ≤ 2µA
W ≤ 2µA
0.5
1
LSB
LSB
I
0.25
0.5
VCC = 5V, IW = 1mA
VCC = 2.5V, IW = 1mA
400
1
Ω
kΩ
IW
TCRPOT
TCRATIO
VN
Wiper Current
1
mA
TC of Pot Resistance
Ratiometric TC
300
ppm/oC
ppm/oC
nV/√Hz
pF
20
Noise
100kHz / 1kHz
8/24
8/8/25
1.7
CH/CL/CW
fc
Potentiometer Capacitances
Frequency Response
Passive Attenuator, 10kΩ
MHz
Doc. No. 2117, Rev. F
4
CAT5115
AC CONDITIONS OF TEST
Range
V
2.5V ≤ V
≤ 5.5V
CC
CC
Input Pulse Levels
0.2V
to 0.7V
CC CC
Input Rise and Fall Times
Input Reference Levels
10ns
0.5V
CC
AC OPERATING CHARACTERISTICS:
VCC = +2.5V to +5.5V, VH = VCC, VL = 0V, unless otherwise specified
Symbol Parameter Min
Typ(1)
Max
Units
tCI
CS to INC Setup
100
50
—
—
—
—
—
—
—
1
—
—
—
—
—
—
—
5
ns
ns
tDI
U/D to INC Setup
tID
U/D to INC Hold
100
250
250
1
ns
tIL
INC LOW Period
ns
tIH
INC HIGH Period
ns
tIC
INC Inactive to CS Inactive
CS Deselect Time
µs
tCPH
tIW
tCYC
tR, tF
100
—
ns
INC to VOUT Change
INC Cycle Time
µs
1
—
—
—
—
500
1
µs
(2)
INC Input Rise and Fall Time
Power-up to Wiper Stable
—
µs
(2)
tPU
—
msec
A. C. TIMING
CS
tCYC
tIC
tCPH
tCI
tIL
tIH
90%
90%
INC
10%
tID
tDI
tR
tF
U/D
(3)
tIW
MI
R
W
o
(1) Typical values are for T =25 C and nominal supply voltage.
A
(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. 2117, Rev. F
5
APPLICATIONS INFORMATION
Potentiometer Configurations
(a) resistive divider
(b) variable resistance
(c) two-port
Applications
A
3
2
1
R
+
–
R
4
V
(-)
+5V
3
1
1
+5V
8
R
R
R
A
1
+5V
6
3
+5V
A
2
1
7
3
U/
DPP
U/
9
4
8
4
{
–
+
}
}
pR
POT
7
6
R
2
2
V
O
3
5
8
R
5
1
(1-p)R
POT
10
11
R
4
555
R
B
2
6
5
A
{
2
CAT5114/5113/5115
R
R
4
–
+
3
+2.5V
7
V
2
(+)
2
1
C
.01 F
.01 F,
.003 F
Programmable Instrumentation Amplifier
Programmable Sq. Wave Oscillator (555)
IC3A
1/4 74HC132
6
–
1.00V = V
REF
7
5
+
OSC
20k
ICIB
+5V
+200mV
10k
U/D
INC
CS
499k
499k
499k
V
CORR
0.01 F
+
–
+5V
CS
2
4
–
V
= 1V + 1mV
SHIFT
OUT
1
+
Sensor
11
3
-5V
ICIA
100mV = V
CAT5112/5111
IC2
499k
1V + 50mV
V
SENSR
Sensor Auto Referencing Circuit
Doc. No. 2117, Rev. F
6
APPLICATIONS INFORMATION
100k
+5V
8
2
1
U/
CAT5114/5113
7
V
V
(REG)
OUT
0
4
R1
11k
2952
6.8
F
V
(UNREG)
pR (1-p)R
IN
330
330
1M
1.23V
.1
SHUTDOWN
SD
GND
FB
6
3
5
+5V
+5V
1
F
R2
820
–
–
7
10k
7
2
3
2
3
6
6
V
+5V
8
O
A1
A2
4
4
+
+
3
I
S
R3
2
1
7
U/
5
10k
Control
and
Memory
LT1097
6
+2.5V
POR
4
CAT5114/5113/5115
Programmable Voltage Regulator
Programmable I to V convertor
R1
100k
CAT5112/5111
+5V
R3
C1
+5V
R1
100k
100k
.001
+5V
+5V
–
+
R
2.5k
V
I
S
2
3
R1
50k
S
–
+
1
F
4
1
C2
Serial
Bus
R1
2
3
7
4
V
11
–
+
+2.5V
S
6
100k
V
O
.001
+5V
R1
100k
A1
+
5
R2
10k
7
–
6
A2
+2.5V
A1=A2=1/4 LMC6064A
+2.5V
CAT5114/5113
Programmable Bandpass Filter
Programmable Current Source/Sink
+5V
IC1
393
IC2
74HC132
R
1
V
LL
2
3
–
+
1
OSC
CLO
R
2
6
5
–
+
R
3
7
10k
+5V
0.1 F
V
UL
CHI
IC3
+5V
CAT5114/5113
+5V
8
6
2
U/D
1
INC
–
+
10k
7
5
V
CS
4
O
3
AI
IC4
2.5V < V < 5V
O
V
+2.5V
S
0 < V < 2.5V
S
Automatic Gain Control
Doc. No. 2117, Rev. F
7
CAT5115
ORDERING INFORMATION
Prefix
Device #
5115
Suffix
S
-10
CAT
I
TE13
Product Number
Resistance
-10: 10kohms
-50: 50kohms
-00: 100kohms
Tape & Reel
SOIC: 2000/Reel
TSSOP: 2000/Reel
MSOP: 2500/Reel
Optional
Company ID
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)
Notes:
(1) The device used in the above example is a CAT5115 SI-10TE13 (SOIC, 10K Ohms, Industrial Temperature, Tape & Reel)
Doc. No. 2117, Rev. F
8
CAT5115
REVISION HISTORY
Date
Rev.
Reason
9/25/2003
B
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 Reel Ordering Information
Deleted ICC2 from DC Characteristics table
Updated AC Operating Characteristics table
Updated A.C. Timing diagram
3/10/2004
3/29/2004
4/12/2004
8/31/2004
C
D
E
F
Copyrights, Trademarks and Patents
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
2
DPP ™
AE ™
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.
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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
Publication #: 2117
Revison:
Issue date:
Type:
F
8/31/04
Preliminary
www.catalyst-semiconductor.com
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CATALYST
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