Catalyst CAT5111YI-00-G 100-tap digitally programmable potentiometer (dppâ ¢) with buffered wiper Datasheet

CAT5111
100-Tap Digitally Programmable Potentiometer (DPP™)
with Buffered Wiper
FEATURES
DESCRIPTION
„ 100-position linear taper potentiometer
The CAT5111 is a single digitally programmable
potentiometer (DPP™) designed as a electronic
replacement for mechanical potentiometers. 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.
„ Non-volatile EEPROM wiper storage;
buffered wiper
„ Low power CMOS technology
„ Single supply operation: 2.5V - 6.0V
„ Increment up/down serial interface
„ Resistance values: 10kΩ, 50kΩ and 100kΩ
The CAT5111 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, RWB. The CAT5111 wiper is buffered by an
op amp that operates rail to rail. The wiper setting,
stored in non-volatile memory, is not lost when the
device is powered down and is automatically recalled
when power is returned. The wiper can be adjusted to
test new system values without effecting the stored
setting.
Wiper-control
of
the
CAT5111
is
¯¯ , U/D̄,
accomplished with three input control pins, CS
¯¯¯. The INC
¯¯¯ input increments the wiper in the
and INC
direction which is determined by the logic state of the
¯¯ input is used to select the device
U/D̄ input. The CS
and also store the wiper position prior to power down.
„ Available in PDIP, SOIC, TSSOP and MSOP
packages
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
The digitally programmable potentiometer can be
used as a buffered voltage divider. For applications
where the potentiometer is used as a 2-terminal
variable resistor, please refer to the CAT5113. The
buffered wiper of the CAT5111 is not compatible with
that application.
For Ordering Information details, see page 12.
FUNCTIONAL DIAGRAM
RH
VCC
RH
U/D
INC
Control
and
Memory
CS
Power On Recall
+
+
RWB
–
–
RWB
RL
RL
GND
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Electronic Potentiometer Implementation
1
Doc. No. MD-2008 Rev. Q
CAT5111
PIN CONFIGURATION
PDIP 8-Lead (L)
SOIC 8 Lead (V)
MSOP 8 Lead (Z)
PIN DESCRIPTIONS
Name Function
TSSOP 8 Lead (Y)
¯¯¯ 1
INC
8 VCC
¯¯ 1
CS
8 RL
U/D̄ 2
¯¯
7 CS
VCC 2
7 RWB
6 RL
¯¯¯ 3
INC
5 RWB
U/D̄ 4
RH 3
CAT
GND 4
CAT
¯¯¯
INC
Increment Control
U/D̄
Up/Down Control
RH
Potentiometer High Terminal
GND Ground
6 GND
RWB
5 RH
Buffered Wiper Terminal
RL
Potentiometer Low Terminal
¯¯
CS
Chip Select
VCC
Supply Voltage
PIN DESCRIPTION
¯¯¯ and U/D̄ inputs will not
high state, activity on the INC
affect or change the position of the wiper.
¯¯¯ : Increment Control Input
INC
¯¯¯ input (on the falling edge) moves the wiper in
The INC
the up or down direction determined by the condition
of the U/D̄ input.
DEVICE OPERATION
The CAT5111 operates like a digitally controlled
potentiometer with RH and RL equivalent to the high
and low terminals and RWB equivalent to the mecha–
nical 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
¯¯¯, U/D̄ and CS
¯¯ . These
controlled by three inputs, INC
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 nonvolatile
¯¯ inputs.
memory using the INC and CS
U/D̄: Up/Down Control Input
The U/D̄ input controls the direction of the wiper
¯¯ is low, any
movement. When in a high state and CS
¯¯¯ will cause the wiper to
high-to-low transition on INC
move one increment toward the RH terminal. When in
¯¯ is low, any high-to-low transition
a low state and CS
¯¯¯ 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.
¯¯ set LOW the CAT5111 is selected and will
With CS
¯¯¯ inputs. HIGH to LOW
respond to the U/D̄ and INC
¯¯¯ wil increment or decrement the
transitions on INC
wiper (depending on the state of the U/D̄ 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
¯¯¯ input is also HIGH.
transitions HIGH while the INC
When the CAT5111 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.
RWB: Wiper Potentiometer Terminal (Buffered)
RWB is the buffered wiper terminal of the poten–
tiometer. Its position on the resistor array is controlled
¯¯¯, U/D̄ and CS
¯¯ .
by the control inputs, INC
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.
¯¯¯ set low, the CAT5111 may be de-selected
With INC
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.
¯¯ : Chip Select
CS
The chip select input is used to activate the control
input of the CAT5111 and is active low. When in a
Doc. No. MD-2008 Rev. Q
2
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5111
OPERATION MODES
RH
¯¯¯
INC
¯¯
CS
U/D̄
Operation
High to Low
Low
High
Wiper toward RH
High to Low
Low
Low
Wiper toward RL
High
Low to High
X
Store Wiper Position
Low
Low to High
X
No Store, Return to Standby
X
High
X
Standby
CH
RWI
RWB
CW
CL
Potentiometer
Equivalent Circuit
RL
ABSOLUTE MAXIMUM RATINGS(1)
Parameters
Supply Voltage
VCC to GND
Inputs
¯¯ to GND
CS
¯¯¯ to GND
INC
U/D̄ to GND
RH to GND
RL to GND
RWB to GND
Ratings
Units
-0.5 to +7V
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
V
V
V
V
V
V
Parameters
Operating Ambient Temperature
Commercial (‘C’ or Blank suffix)
Industrial (‘I’ suffix)
Junction Temperature
Storage Temperature
Lead Soldering (10s max)
Ratings
Units
0 to 70
-40 to +85
+150
-65 to 150
+300
ºC
ºC
ºC
ºC
ºC
Max
Units
RELIABILITY CHARACTERISTICS
Symbol
Parameter
Test Method
Min
VZAP(2)
ILTH(2) (3)
Typ
ESD Susceptibility
MIL-STD-883, Test Method 3015
2000
V
Latch-Up
JEDEC Standard 17
100
mA
TDR
Data Retention
MIL-STD-883, Test Method 1008
100
Years
NEND
Endurance
MIL-STD-883, Test Method 1003
1,000,000
Stores
DC ELECTRICAL CHARACTERISTICS
VCC = +2.5V to +6V unless otherwise specified
Power Supply
Symbol
Parameter
VCC
Operating Voltage Range
ICC1
Supply Current (Increment)
ICC2
Supply Current (Write)
ISB1(3)
Supply Current (Standby)
Conditions
Min
Typ
Max
Units
2.5
–
6
V
VCC = 6V, f = 1MHz, IW = 0
–
–
200
µA
VCC = 6V, f = 250kHz, IW = 0
–
–
100
µA
Programming, VCC = 6V
–
–
1000
µA
VCC = 3V
¯¯ = VCC - 0.3V
CS
¯¯¯ = VCC - 0.3V or GND
U/D̄, INC
–
–
500
µA
–
75
150
µA
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.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. MD-2008 Rev. Q
CAT5111
Logic Inputs
Symbol
Parameter
Conditions
IIH
Input Leakage Current
VIN = VCC
–
–
10
µA
IIL
Input Leakage Current
VIN = 0V
–
–
-10
µA
2
–
VCC
V
0
–
0.8
V
VCC x 0.7
–
VCC + 0.3
V
-0.3
–
VCC x 0.2
V
VIH1
TTL High Level Input Voltage
VIL1
TTL Low Level Input Voltage
VIH2
CMOS High Level Input Voltage
VIL2
CMOS Low Level Input Voltage
4.5V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 6V
Min
Typ
Max
Units
Potentiometer Characteristics
Symbol
RPOT
Parameter
Potentiometer Resistance
Conditions
Min
Typ
-10 Device
10
-50 Device
50
-00 Device
100
Pot. Resistance Tolerance
Max
Units
kΩ
±20
%
VRH
Voltage on RH pin
0
VCC
V
VRL
Voltage on RL pin
0
VCC
V
Resolution
1
%
INL
Integral Linearity Error
IW ≤ 2µA
0.5
1
LSB
DNL
Differential Linearity Error
IW ≤ 2µA
0.25
0.5
LSB
ROUT
Buffer Output Resistance
0.05VCC ≤ VWB ≤ 0.95VCC,
VCC = 5V
1
Ω
IOUT
Buffer Output Current
0.05VCC ≤ VWB ≤ 0.95VCC,
VCC = 5V
3
mA
TCRPOT
TC of Pot Resistance
TCRATIO
Ratiometric TC
300
20
CRH/CRL/CRW Potentiometer Capacitances
fc
Frequency Response
Passive Attenuator, 10kΩ
VWB(SWING)
Output Voltage Range
IOUT ≤ 100µA, VCC = 5V
Doc. No. MD-2008 Rev. Q
ppm/ºC
4
0.01VCC
ppm/ºC
8/8/25
pF
1.7
MHz
0.99VCC
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5111
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
tCI
tDI
tID
tIL
tIH
tIC
tCPH
tCPH
tIW
tCYC
(2)
tR, tF
tPU
(2)
tWR
Parameter
Min
Typ (1)
Max
Units
¯¯ to INC
¯¯¯ Setup
CS
¯¯¯ Setup
U/D̄ to INC
100
–
–
ns
50
–
–
ns
¯¯¯ Hold
U/D̄ to INC
¯¯¯ LOW Period
INC
100
–
–
ns
250
–
–
ns
¯¯¯ HIGH Period
INC
¯¯¯ Inactive to CS
¯¯ Inactive
INC
250
–
–
ns
1
–
–
µs
¯¯ Deselect Time (NO STORE)
CS
¯¯ Deselect Time (STORE)
CS
100
–
–
ns
10
–
–
ms
¯¯¯ to VOUT Change
INC
¯¯¯ Cycle Time
INC
–
1
5
µs
1
–
–
µs
¯¯¯ Input Rise and Fall Time
INC
–
–
500
µs
Power-up to Wiper Stable
–
–
1
ms
Store Cycle
–
5
10
ms
A.C. TIMING
CS
tCI
tIL
tCYC
tIC
tIH
(store)
tCPH
90%
INC
90%
10%
tDI
tID
tF
U /D
tIW
tR
MI(3)
RWB
Notes:
(1)
(2)
(3)
Typical values are for TA = 25ºC and nominal supply voltage.
This parameter is periodically sampled and not 100% tested.
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.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-2008 Rev. Q
CAT5111
APPLICATIONS INFORMATION
Potentiometer Configuration
(a) resistive divider
(b) variable resistance
(c) two-port
Applications
3
V1 (-)
+
1
R3
R4
–
2
+5V
2
+5V
9
R2
–
R1
1 DPP
7
4
R2
+
10
11
A3
8
R1
8
2
8
+5V
+5V
RA
6
1 DPP
7
VO
pRPOT
5
4
3
CAT5113/5114
V2 (+)
5
3
555
R2
R3
–
R4
6
+2.5V
7
+
A1 = A2 = A3 = ¼ LM6064
R2 = R3 = R4 = 5kΩ
RPOT = 10kΩ
10kΩ
0.01µF
–
7
+200mV
1 DPP
7
+
4
+
20kΩ
8
2
1
0.01µF
Programmable Sq. Wave Oscillator (555)
IC3A
¼ 74HC132
+5V
5
2
0.01µF
0.003µF
C
Programmable Instrumentation Amplifier
OSC
8
(1-p)R POT
RB
4
6
4
7
IC1B
VREF = 1V
5
499kΩ
VCORR
–
6
499kΩ
CS
+5V
2
CAT5111/5112
IC2
3
–
+
4
11
1
VOUT = 1V ± 1mV
IC1A
Sensor
-5V
499kΩ
499kΩ
VSENSOR = 1V ± 50mV
Sensor Auto Referencing Circuit
Doc. No. MD-2008 Rev. Q
6
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5111
+5V
100kΩ
8
2
1 DPP CAT5113/5114
7
VO (REG)
VOUT
4
R1
11kΩ
2952
VIN (UNREG)
SHUTDOWN
SD
GND
6.8µF
2
1 DPP
7
A1
3
R3
10kΩ
5
CAT5113/5114
4
IS
+
3
1MΩ
5
7
–
330Ω
3
6
+5V
8
2
pR (1-p)R
330Ω
R2
820Ω
1µF
+5V
0.1µF
1.23V
FB
+5V
2
10k
6
4
3
6
7
–
+
A2
VO
6
4
LT1097
+2.5V
Programmable I to V Convertor
Programmable Voltage Regulator
+5V
IC1
393
IC2
74HC132
–
1
OSC
CLO
+
VLL
2
R1
3
R2
–
CHI 7
10kΩ
0.1µF
+
6
C1
0.001µF
R3
5
+5V
VUL
1µF
C2
R1
2
10kΩ
1 DPP
7
3
+
4
6
VO
A1
+2.5V
CAT5113/5114
4
0 ≤ VO ≤ 2.5V
AI
IC4
3
1 DPP
7
VO
+
4
8
2
–
R2
10k Ω
7
–
0.001µF
+5V
5
8
50kΩ
+5V
+5V
2
VS
IC3
CAT5111/5112
+5V
6
R3
100k Ω
VS +2.5V
0 ≤ VS ≤ 2.5V
Programmable Bandpass Filter
Automatic Gain Control
+5V
Serial
Bus
R1
100k Ω
+5V
–
R1
100k Ω
VS
+5V
2
–
+
+2.5V
R1
100k Ω
CAT5111/5112
3
+
R
2.5kΩ
4
IS
1
11
R1
100k Ω
+
A2
–
7
5
+2.5V
6
A1 = A2 = LMC6064A
Programmable Current Source/Sink
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7
Doc. No. MD-2008 Rev. Q
CAT5111
PACKAGE OUTLINE DRAWINGS
PDIP 8-Lead 300mils (L)
(1)(2)
SYMBOL
MIN
NOM
A
E1
5.33
A1
0.38
A2
2.92
3.30
4.95
b
0.36
0.46
0.56
b2
1.14
1.52
1.78
c
0.20
0.25
0.36
D
9.02
9.27
10.16
E
7.62
7.87
8.25
e
PIN # 1
IDENTIFICATION
MAX
2.54 BSC
E1
6.10
eB
7.87
L
2.92
6.35
7.11
10.92
3.30
3.80
D
TOP VIEW
E
A2
A
A1
c
b2
L
e
eB
b
SIDE VIEW
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. Angles in degrees.
(2) Complies with JEDEC standard MS-001.
Doc. No. MD-2008 Rev. Q
8
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5111
SOIC 8-Lead 150mils (V)
(1)(2)
SYMBOL
E1
E
MIN
MAX
A
1.35
A1
0.10
0.25
b
0.33
0.51
1.75
c
0.19
0.25
D
4.80
5.00
E
5.80
6.20
E1
3.80
e
PIN # 1
IDENTIFICATION
NOM
4.00
1.27 BSC
h
0.25
0.50
L
0.40
1.27
θ
0º
8º
TOP VIEW
D
h
A1
θ
A
c
e
b
L
SIDE VIEW
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. Angles in degrees.
(2) Complies with JEDEC standard MS-012.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc. No. MD-2008 Rev. Q
CAT5111
TSSOP 8-Lead (Y)
(1)(2)
b
SYMBOL
MIN
NOM
MAX
A
E1
E
1.20
A1
0.05
A2
0.80
b
0.19
0.15
0.90
1.05
0.30
c
0.09
D
2.90
3.00
0.20
E
6.30
6.40
6.50
E1
4.30
4.40
4.50
3.10
e
0.65 BSC
L
1.00 REF
L1
0.50
θ1
0°
0.60
0.75
8°
e
TOP VIEW
D
A2
A
A1
c
θ1
L1
SIDE VIEW
L
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. Angles in degrees.
(2) Complies with JEDEC standard MS-153.
Doc. No. MD-2008 Rev. Q
10
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5111
MSOP 8-Lead 3.0 x 3.0mm (Z)
(1)(2)
SYMBOL
MIN
NOM
MAX
A
E
E1
1.10
A1
0.05
0.10
0.15
A2
0.75
0.85
0.95
b
0.22
c
0.13
D
2.90
0.38
0.23
3.00
3.10
E
4.80
4.90
5.00
E1
2.90
3.00
3.10
e
L
0.65 BSC
0.40
0.60
L1
L2
θ
0.80
0.95 REF
0.25 BSC
0º
6º
TOP VIEW
D
A
A2
A1
DETAIL A
e
b
c
SIDE VIEW
END VIEW
θ
L2
L
L1
DETAIL A
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 standard MS-187.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc. No. MD-2008 Rev. Q
CAT5111
EXAMPLE OF ORDERING INFORMATION
Prefix
CAT
Device #
Suffix
5111
V
Optional
Company ID
I
-10
G(2)(3)
–
Temperature Range
I = Industrial (-40ºC to 85ºC)
Product Number
5111
L:
V:
Y:
Z:
Resistance
-10: 10kΩ
-50: 50kΩ
-00: 100kΩs
Package
PDIP
SOIC
TSSOP
MSOP
T3
Tape & Reel
T: Tape & Reel
3: 3,000/Reel
Lead Finish
Blank: Matte-Tin
G:NiPdAu
Notes:
(1)
(2)
(3)
(4)
All packages are RoHS compliant.
Standard lead finish is NiPdAu, except MSOP package is Matte-Tin.
Contact factory for Matte-Tin finish availability for PDIP, SOIC and TSSOP packages.
This device used in the above example is a CAT5111VI-10-GT3 (SOIC, Industrial Temperature, 10kΩ, NiPdAu, Tape & Reel, 3,000/Reel).
ORDERING PART NUMBER
Part Number
CAT5111LI-10-G
CAT5111LI-50-G
CAT5111LI-00-G
CAT5111VI-10-G
CAT5111VI-50-G
CAT5111VI-00-G
CAT5111YI-10-G
CAT5111YI-50-G
CAT5111YI-00-G
CAT5111ZI-10
CAT5111ZI-50
CAT5111ZI-00
Resistance (kΩ)
10
50
100
10
50
100
10
50
100
10
50
100
Package-Pins
Lead Finish
PDIP-8
NiPdAu
SOIC-8
NiPdAu
TSSOP-8
NiPdAu
MSOP-8
Matte-Tin
For Product Top Mark Codes, click here:
http://www.catsemi.com/techsupport/producttopmark.asp
Doc. No. MD-2008 Rev. Q
12
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
REVISION HISTORY
Date
03/10/2004
03/29/2004
04/12/2004
Rev.
M
N
O
06/01/2007
P
Updated Example of Ordering Information
Added Package Outline
Added MD- in front of Document No.
Q
Update Potentiometer Characteristics table
Update Package Outline Drawings
Update Example of Ordering Information
Delete MSOP in NiPdAu plated finish
Add Top Mark Codes link.
03/27/2008
Reason
Updated Potentiometer Parameters
Changed Green Package marking for SOIC from W to V
Updated Reel Ordering Information
Copyrights, Trademarks and Patents
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Document No: MD-2008
Revision:
Q
Issue date:
03/27/08
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