CAT5111ZI-10-T3 - ON Semiconductor

May, 2012 − Rev. 19

1Publication Order Number:

CAT5111/D

CAT5111

100-Tap Digitally Program-

mable Potentiometer (DPP)

with Buffered Wiper

Description

The CAT5111 is a single digitally programmable potentiometer

(DPP) designed as an 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.

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 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 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.

Features

•100−position Linear Taper Potentiometer

•Non−volatile EEPROM Wiper Storage; Buffered Wiper

•Low Power CMOS Technology

•Single Supply Operation: 2.5 V − 6.0 V

•Increment Up/Down Serial Interface

•Resistance Values: 10 kW, 50 kW and 100 kW

•Available in PDIP, SOIC, TSSOP and MSOP Packages

•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

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

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PIN CONFIGURATIONS

RWB

U/D

INC

VCC

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

SOIC−8

V SUFFIX

CASE 751BD

MSOP−8

Z SUFFIX

CASE 846AD

GND

PDIP (L), SOIC (V),

MSOP (Z)

PDIP−8

L SUFFIX

CASE 646AA

TSSOP−8

Y SUFFIX

CASE 948AL

Increment ControlINC

Up/Down ControlU/D

Potentiometer High TerminalRH

GroundGND

Buffered Wiper TerminalRWB

Potentiometer Low TerminalRL

FunctionPin Name

PIN FUNCTION

Chip SelectCS

Supply VoltageVCC

TSSOP (Y)

(Top Views)

GND

U/D

INC

RWB

VCC

CAT5111

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DEVICE MARKING INFORMATION

AARL = CAT5111ZI−10−T3

AAPT = CAT5111ZI−50−T3

AAPX = CAT5111ZI−00−T3

Y = Production Year (Last Digit)

M = Production Month (1−9, A, B, C)

P = Product Revision

R = Resistance:

2 = 10 kW

4 = 50 kW

5 = 100 kW

L = Assembly Location

4 = Lead Finish − NiPdAu

A = Product Revision (Fixed as “A”)

CAT5111L = Device Code (PDIP)

CAT5111V = Device Code (SOIC)

T = Temperature Range (Industrial)

Y = Production Year (Last Digit)

M = Production Month (1−9, A, B, C)

XXXX = Last Four Digits of Assembly Lot Number

A1 = Device Code

R = Resistance:

2 = 10 kW

4 = 50 kW

5 = 100 kW

L = Assembly Location

4 = Lead Finish − NiPdAu

Y = Production Year (Last Digit)

M = Production Month (1−9, A, B, C)

XXX = Last Three Digits of

XXX = Assembly Lot Number

TSSOPPDIP SOIC MSOP

RL4A

CAT5111LT

YMXXXX

RL4A

CAT5111VT

YMXXXX

AARL

YMP

A1RL

4YMXXX

Figure 1. Functional Diagram Figure 2. Electronic Potentiometer Implementation

Control

and

Memory

Power On Recall

GND

–

U/D

INC

VCC

RWB

CAT5111

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Pin Description

INC: Increment Control Input

The INC input (on the falling edge) 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 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.

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.

RWB: Wiper Potentiometer Terminal (Buffered)

RWB is the buffered wiper terminal of the potentiometer. Its

position on the resistor array is controlled by the control

inputs, INC, U/D and CS.

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 CAT5111 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 CAT5111 operates like a digitally controlled

potentiometer with RH and RL equivalent to the high and low

terminals and RWB 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 seven−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.

With CS set LOW the CAT5111 is selected and will

respond to the U/D and INC inputs. HIGH to LOW

transitions on INC will 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 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.

With INC set low, the CAT5111 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.

CAT5111

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Table 1. OPERATION MODES

INC CS U/D Operation

High to Low Low High Wiper toward RH

High to Low Low Low Wiper toward RL

High Low to High XStore Wiper Position

Low Low to High XNo Store, Return to Standby

X High X Standby

Figure 3. Potentiometer Equivalent Circuit

RWB

RWI

Table 2. ABSOLUTE MAXIMUM RATINGS

Parameters Ratings Units

Supply Voltage

VCC to GND −0.5 to +7

Inputs

CS to GND −0.5 to VCC +0.5

INC to GND −0.5 to VCC +0.5 V

U/D to GND −0.5 to VCC +0.5 V

RH to GND −0.5 to VCC +0.5 V

RL to GND −0.5 to VCC +0.5 V

RWB to GND −0.5 to VCC +0.5 V

Operating Ambient Temperature

Commercial (‘C’ or Blank suffix) 0 to 70

°C

Industrial (‘I’ suffix) −40 to +85 °C

Junction Temperature +150 °C

Storage Temperature −65 to 150 °C

Lead Soldering (10 s max) +300 °C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

Table 3. RELIABILITY CHARACTERISTICS

Symbol Parameter Test Method Min Typ Max Units

VZAP (Note 1) ESD Susceptibility MIL−STD−883, Test Method 3015 2000 V

ILTH (Notes 1, 2) 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

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 100 mA on address and data pins from −1 V to VCC + 1 V

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Table 4. DC ELECTRICAL CHARACTERISTICS (VCC = +2.5 V to +6 V unless otherwise specified)

Symbol Parameter Conditions Min Typ Max Units

POWER SUPPLY

VCC Operating Voltage Range 2.5 – 6 V

ICC1 Supply Current (Increment) VCC = 6 V, f = 1 MHz, IW = 0 – – 200 mA

VCC = 6 V, f = 250 kHz, IW = 0 – – 100 mA

ICC2 Supply Current (Write) Programming, VCC = 6 V – – 1000 mA

VCC = 3 V – – 500 mA

ISB1 (Note 4) Supply Current (Standby) CS = VCC − 0.3 V

U/D, INC = VCC − 0.3 V or GND

– 75 150 mA

LOGIC INPUTS

IIH Input Leakage Current VIN = VCC – – 10 mA

IIL Input Leakage Current VIN = 0 V – – −10 mA

VIH1 TTL High Level Input Voltage 4.5 V ≤ VCC ≤ 5.5 V 2 – VCC V

VIL1 TTL Low Level Input Voltage 0 – 0.8 V

VIH2 CMOS High Level Input Voltage 2.5 V ≤ VCC ≤ 6 V VCC x 0.7 – VCC + 0.3 V

VIL2 CMOS Low Level Input Voltage −0.3 – VCC x 0.2 V

POTENTIOMETER CHARACTERISTICS

RPOT Potentiometer Resistance −10 Device 10 kW

−50 Device 50

−00 Device 100

Pot. Resistance Tolerance ±20 %

VRH Voltage on RH pin 0 VCC V

VRL Voltage on RL pin 0 VCC V

Resolution 1 %

INL Integral Linearity Error IW ≤ 2 mA0.5 1 LSB

DNL Differential Linearity Error IW ≤ 2 mA0.25 0.5 LSB

ROUT Buffer Output Resistance 0.05 VCC ≤ VWB ≤ 0.95 VCC,

VCC = 5 V

IOUT Buffer Output Current 0.05 VCC ≤ VWB ≤ 0.95 VCC,

VCC = 5 V

3 mA

TCRPOT TC of Pot Resistance 300 ppm/°C

TCRATIO Ratiometric TC 20 ppm/°C

CRH/CRL/CRW Potentiometer Capacitances 8/8/25 pF

fc Frequency Response Passive Attenuator, 10 kW1.7 MHz

VWB(SWING) Output Voltage Range IOUT ≤ 100 mA, VCC = 5 V 0.01 VCC 0.99 VCC

3. This parameter is tested initially and after a design or process change that affects the parameter.

4. Latch−up protection is provided for stresses up to 100 mA on address and data pins from −1 V to VCC + 1 V

5. IW = source or sink

6. These parameters are periodically sampled and are not 100% tested.

CAT5111

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Table 5. AC TEST CONDITIONS

VCC Range 2.5 V ≤ VCC ≤ 6 V

Input Pulse Levels 0.2 VCC to 0.7 VCC

Input Rise and Fall Times 10 ns

Input Reference Levels 0.5 VCC

Table 6. AC OPERATING CHARACTERISTICS (VCC = +2.5 V to +6.0 V, VH = VCC, VL = 0 V, unless otherwise specified)

Symbol Parameter Min Typ (Note 7) Max Units

tCI CS to INC Setup 100 − − ns

tDI U/D to INC Setup 50 − − ns

tID U/D to INC Hold 100 − − ns

tIL INC LOW Period 250 − − ns

tIH INC HIGH Period 250 − − ns

tIC INC Inactive to CS Inactive 1− − ms

tCPH CS Deselect Time (NO STORE) 100 − − ns

tCPH CS Deselect Time (STORE) 10 − − ms

tIW INC to VOUT Change −1 5 ms

tCYC INC Cycle Time 1− − ms

tR, tF (Note 8) INC Input Rise and Fall Time − − 500 ms

tPU (Note 8) Power−up to Wiper Stable – – 1 ms

tWR Store Cycle – 5 10 ms

7. Typical values are for TA = 25°C and nominal supply voltage.

8. This parameter is periodically sampled and not 100% tested.

9. 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.

Figure 4. A.C. Timing

90% 90%

10%

(store)

MI(3)

tIC tCPH

tIW

RWB

U/D

INC

tCI

tDI tID

tIL tIH

tCYC

CAT5111

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Applications Information

(a) resistive divider (b) variable resistance (c) two−port

Figure 5. Potentiometer Configuration

Applications

Figure 6. Programmable Instrumentation

Amplifier

+5 V

+2.5 V

11 8

–

+5 V

CAT5113/5114

DPP

Figure 7. Programmable Sq. Wave Oscillator (555)

Figure 8. Sensor Auto Referencing Circuit

+5 V

−5 V

499 kW

IC1B

IC1A

20 kW

499 kW

10 kW

0.01 mF

OSC

IC3A

1/4 74HC132

–

Sensor

+5 V +200 mV

CAT5111/5112

IC2

DPP

–

+5 V

0.01 mF

0.003 mF

+5 V

DPP

555

V1 (−)

V2 (+)

A1 = A2 = A3 = 1/4 LM6064

R2 = R3 = R4 = 5 kW

RPOT = 10 kW

pRPOT

(1−p)RPOT

VSENSOR = 1 V ± 50 mV

VOUT = 1 V ± 1 mV

VREF = 1 V

VCORR

CAT5111

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Figure 9. Programmable Voltage Regulator

0.1 mF

1 mF

6.8 mF

11 kW

100 kW

1.23 V

+5 V

DPP

2952

CAT5113/5114

FBSD

GND

Figure 10. Programmable I to V Converter

+2.5 V

+5 V

–

LT1097

+5 V

–

+5 V

CAT5113/5114

DPP

pR (1−p)R

330 W330 W1 MW

10 k

+5 V

+2.5 V

+5 V

IC3

CAT5111/5112

CLO

IC1

393

IC4

–

+5 V

OSC

IC2

74HC132

0.1 mF

–

CHI 6

–

DPP

Figure 11. Automatic Gain Control

+5 V

0.001 mF

1 mF

346

–

+5 V

CAT5113/5114

DPP +2.5 V

Figure 12. Programmable Bandpass Filter

Figure 13. Programmable Current Source/Sink

CAT5111/5112

+5 V +5 V

Serial

Bus

+2.5 V

+5 V

311

–

2.5 kW

100 kW

VOUT VO (REG)

820 W

10 kW

VIN (UNREG)

SHUTDOWN

A1A2VO

0 ≤ VO ≤ 2.5 V

VUL

VLL R1

10 kW

0 ≤ VS ≤ 2.5 V

10 kW

100 kW

50 kW

A2A1 = A2 = LMC6064A

CAT5111

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Table 7. ORDERING INFORMATION

Orderable Part Number Resistance (kW)Lead Finish Package−Pins Shipping†

CAT5111LI−10−G 10

NiPdAu PDIP−8

(Pb−Free) 50 Units / Tube

CAT5111LI−50−G 50

CAT5111LI−00−G 100

CAT5111VI−10−GT3 10

NiPdAu SOIC−8

(Pb−Free) 3000 / Tape & Reel

CAT5111VI−50−GT3 50

CAT5111VI−00−GT3 100

CAT5111YI−10−GT3 10

NiPdAu TSSOP−8

(Pb−Free) 3000 / Tape & Reel

CAT5111YI−50−GT3 50

CAT5111YI−00−GT3 100

CAT5111ZI−10−T3 10

Matte−Tin MSOP−8

(Pb−Free) 3000 / Tape & Reel

CAT5111ZI−50−T3 50

CAT5111ZI−00−T3 100

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

10.For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device

Nomenclature document, TND310/D, available at www.onsemi.com.

11. All packages are RoHS compliant.

12.Standard lead finish is NiPdAu, except MSOP package is Matte−Tin.

13.Contact factory for Matte−Tin finish availability for PDIP, SOIC and TSSOP packages.

CAT5111

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PACKAGE DIMENSIONS

PDIP−8, 300 mils

CASE 646AA−01

ISSUE A

TOP VIEW

SIDE VIEW END VIEW

PIN # 1

IDENTIFICATION

Notes:

(1) All dimensions are in millimeters.

(2) Complies with JEDEC MS-001.

SYMBOL MIN NOM MAX

0.38

2.92

0.36

6.10

1.14

0.20

9.02

2.54 BSC

3.30

5.33

4.95

0.56

7.11

1.78

0.36

10.16

eB 7.87 10.92

E 7.62 8.25

2.92 3.80

3.30

0.46

6.35

1.52

0.25

9.27

7.87

CAT5111

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PACKAGE DIMENSIONS

SOIC 8, 150 mils

CASE 751BD−01

ISSUE O

E1 E

PIN # 1

IDENTIFICATION

TOP VIEW

SIDE VIEW END VIEW

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC MS-012.

SYMBOL MIN NOM MAX

0º 8º

0.10

0.33

0.19

0.25

4.80

5.80

3.80

1.27 BSC

1.75

0.25

0.51

0.25

0.50

5.00

6.20

4.00

L0.40 1.27

1.35

CAT5111

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PACKAGE DIMENSIONS

TSSOP8, 4.4x3

CASE 948AL−01

ISSUE O

E1 E

TOP VIEW

SIDE VIEW END VIEW

L1 L

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC MO-153.

SYMBOL

MIN NOM MAX

0º 8º

0.05

0.80

0.19

0.09

0.50

2.90

6.30

4.30

0.65 BSC

1.00 REF

1.20

0.15

1.05

0.30

0.20

0.75

3.10

6.50

4.50

0.90

0.60

3.00

6.40

4.40

CAT5111

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PACKAGE DIMENSIONS

MSOP 8, 3x3

CASE 846AD−01

ISSUE O

E1E

A1 e b

TOP VIEW

SIDE VIEW END VIEW

DETAIL A

Notes:

(1) All dimensions are in millimeters. Angles in degrees.

(2) Complies with JEDEC MO-187.

SYMBOL MIN NOM MAX

0º 6º

0.05

0.75

0.22

0.13

0.40

2.90

4.80

2.90

0.65 BSC

0.25 BSC

1.10

0.15

0.95

0.38

0.23

0.80

3.10

5.00

3.10

0.60

3.00

4.90

3.00

L1 0.95 REF

0.10

0.85

CAT5111

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to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All

operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights

nor the rights of others. SCILLC 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 SCILLC product could create a situation where personal injury or death may occur. Should

Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,

and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death

associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal

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PUBLICATION ORDERING INFORMATION

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5817−1050

CAT5111/D

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