CAT5115ZI-50MSOP资料

Preliminary InformationCAT511532-Tap Digitally Programmable Potentiometer (DPP™)FEATURESs32-position, linear-taper potentiometersLow power CMOS technologysSingle supply operation: 2.5V-5.5VsIncrement up/down serial interfacesResistance values: 10kΩ, 50kΩ and 100kΩsAvailable in PDIP, SOIC, TSSOP and MSOP packagesHGENFROLAEELEAPPLICATIONSsAutomated product calibrationsRemote control adjustmentssOffset, gain and zero controlsTamper-proof calibrationsADFREETMsContrast, brightness and volume controlssMotor controls and feedback systemssProgrammable analog functionsDESCRIPTIONThe CAT5115 is a single digitally programmablepotentiometer (DPP™) designed as a electronicreplacement for mechanical potentiometers and trimpots. Ideal for automated adjustments on high volumeproduction lines, they are also well suited forapplications where equipment requiring periodicadjustment is either difficult to access or located in ahazardous or remote environment.The CAT5115 contains a 32-tap series resistor arrayconnected between two terminals RH and RL. An up/down counter and decoder that are controlled by threeinput pins, determines which tap is connected to thewiper, RW. The wiper is always set to the mid point, tap15 at power up. The tap position is not stored in memory.Wiper-control of the CAT5115 is accomplished withthree input control pins, CS, U/D, and INC. The INCinput increments the wiper in the direction which isdetermined by the logic state of the U/D input. The CSinput is used to select the device.The digitally programmable potentiometer can beused as a three-terminal resistive divider or as atwo-terminal variable resistor. DPPs bring variability andprogrammability to a wide variety of applicationsincluding control, parameter adjustments, andsignal processing.For a pin-compatible device that recalls a stored tapposition on power-up refer to the CAT5114 data sheet.FUNCTIONAL DIAGRAMVcc(Supply Voltage) U/DINCCS5-BITUP/DOWNCOUNTER3130RH/VHVH/RHRH/VHUP/DOWN(U/D)INCREMENT(INC)DEVICE SELECT(CS)ControlandMemoryRW/VW29ONE28OFTHIRTY TWODECODERTRANSFERGATESRESISTORARRAYVW/RW2PORRL/VLVccCONTROLCIRCUITRY10RL/VLRW/VWGNDGENERALVSSVL/RLGENERALDETAILEDELECTRONIC POTENTIOMETERIMPLEMENTATION© 2004 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

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CAT5115

PIN CONFIGURATION

DIP Package (P, L)

INCU/DRHGND12348765VCCCSRLRWPIN FUNCTIONS

TSSOP Package (U, Y)

CSVCCINCU/D12348765RLRWGNDRHPin NameINCU/DRHGNDRWRLCSVCC

Function

Increment ControlUp/Down Control

Potentiometer High TerminalGround

Potentiometer Wiper TerminalPotentiometer Low TerminalChip SelectSupply Voltage

SOIC Package (S, V)

INCU/DRHGND12348765VCCCSRLRWMSOP Package (R, Z)

INCU/DRHGND12348765VCCCSRLRWPIN DESCRIPTIONS

INC: Increment Control Input

The INC input moves the wiper in the up or downdirection determined by the condition of the U/D input.U/D: Up/Down Control Input

The U/D input controls the direction of the wipermovement. When in a high state and CS is low, any high-to-low transition on INC will cause the wiper to move oneincrement toward the RH terminal. When in a low stateand CS is low, any high-to-low transition on INC willcause the wiper to move one increment towards theRL terminal.

RH: High End Potentiometer Terminal

RH is the high end terminal of the potentiometer. It is notrequired that this terminal be connected to a potentialgreater than the RL terminal. Voltage applied to the RHterminal cannot exceed the supply voltage, VCC or gobelow ground, GND.

RW: Wiper Potentiometer Terminal

RW is the wiper terminal of the potentiometer. Its positionon the resistor array is controlled by the control inputs, INC,U/D and CS. Voltage applied to the RW terminal cannotexceed 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 notrequired that this terminal be connected to a potentialless than the RH terminal. Voltage applied to the RLterminal cannot exceed the supply voltage, VCC or gobelow ground, GND. RL and RH are electricallyinterchangeable.

CS: Chip Select

The chip select input is used to activate the control inputof the CAT5115 and is active low. When in a highstate, activity on the INC and U/D inputs will notaffect or change the position of the wiper.

DEVICE OPERATION

The CAT5115 operates like a digitally controlledpotentiometer with RH and RL equivalent to the highand low terminals and RW equivalent to the mechanicalpotentiometer's wiper. There are 32 available tappositions including the resistor end points, RH and RL.There are 31 resistor elements connected in seriesbetween the RH and RL terminals. The wiper terminal isconnected to one of the 32 taps and controlled by threeinputs, INC, U/D and CS. These inputs control a five-bitup/down counter whose output is decoded to select thewiper position.

With CS set LOW the CAT5115 is selected and willrespond to the U/D and INC inputs. HIGH to LOWtransitions on INC wil increment or decrement thewiper (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 movebeyond the last position. When the CAT5115 is powered-down, the wiper position is reset. When power is restored,the counter is set to the mid point, tap 15.

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CAT5115

OPERATION MODES INC󰀀High to LowHigh to Low X CS󰀀 Low Low High U/D󰀀 Low X Operation Wiper toward H Wiper toward L StandbyCLCHRH HighRwiRWCWRLPotentiometerEquivalent CircuitABSOLUTE MAXIMUM RATINGS

Supply Voltage

VCC to GND......................................–0.5V to +7VInputs

CS to GND.............................–0.5V to VCC +0.5VINC to GND............................–0.5V to VCC +0.5VU/D to GND............................–0.5V to VCC +0.5VH to GND................................–0.5V to VCC +0.5VL to GND................................–0.5V to VCC +0.5VW to GND...............................–0.5V to VCC +0.5VRELIABILITY CHARACTERISTICSSymbolVZAP(1)ILTH(1)(2)TDRNENDOperating Ambient Temperature

Industrial (‘I’ suffix)......................– 40°C to +85°CJunction Temperature.....................................+150°CStorage Temperature.......................–65°C to +150°CLead Soldering (10 sec max)..........................+300°C

* Stresses above those listed under Absolute Maximum Ratings maycause permanent damage to the device. Absolute Maximum Ratingsare limited values applied individually while other parameters arewithin specified operating conditions, and functional operation at anyof these conditions is NOT implied. Device performance and reliabilitymay be impaired by exposure to absolute rating conditions for extendedperiods of time.

ParameterESD SusceptibilityLatch-UpData RetentionEnduranceTest MethodMIL-STD-883, Test Method 3015JEDEC Standard 17MIL-STD-883, Test Method 1008MIL-STD-883, Test Method 1003Min20001001001,000,000TypMaxUnitsVoltsmAYearsStoresDC Electrical Characteristics: VCC = +2.5V to +5.5V unless otherwise specifiedPower SupplySymbolParameterConditionsMinVCCICC1ICC2ISB1 (2)Operating Voltage RangeSupply Current (Increment)Supply Current (Write)Supply Current (Standby)VCC = 5.5V, f = 1MHz, IW=0VCC = 5.5V, f = 250kHz, IW=0Programming, VCC = 5.5VVCC = 3VCS=VCC-0.3VU/D, INC=VCC-0.3V or GND2.5—————Typ——————Max5.51005015001UnitsVµAmAµAµALogic InputsSymbolIIHIILVIH1VIL1VIH2VIL2NOTES:

(1)(2)(3)(4)

ParameterInput Leakage CurrentInput Leakage CurrentTTL High Level Input VoltageTTL Low Level Input VoltageCMOS High Level Input VoltageCMOS Low Level Input VoltageConditionsVIN = VCCVIN = 0V4.5V ≤ VCC ≤ 5.5V2.5V ≤ VCC ≤ 5.5VMin——20VCC x 0.7-0.3Typ——————Max10–10VCC0.8VCC + 0.3VCC x 0.2UnitsµAµAVVVVThis 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 + 1VIW=source or sink

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

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CAT5115

Potentiometer Parameters Symbol RPOT

Parameter

Potentiometer Resistance

Conditions-10 Device-50 Device-00 Device

Pot Resistance Tolerance

VRH VRL INL DNL RWi IW TCRPOT TCRATIO VN

CH/CL/CW

Min Typ 10 50 100

Max Units kΩ

± 20

0 0

3.2

IW ≤ 2µAIW ≤ 2µA

VCC = 5V, IW = 1mAVCC = 2.5V, IW = 1mA

0.5 0.25

1 0.5 400 1 1

300

20

100kHz / 1kHz

8/24

8/8/25Passive Attenuator, 10kΩ

1.7

VCC VCC

% V

V

Voltage on RH pinVoltage on RL pinResolution

Integral Linearity ErrorDifferential Linearity ErrorWiper ResistanceWiper CurrentTC of Pot ResistanceRatiometric TCNoise

Potentiometer CapacitancesFrequency Response

% LSB LSB Ω kΩ mAppm/oCppm/oCnV/√Hz pFMHz

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CAT5115

AC CONDITIONS OF TESTVCC RangeInput Pulse LevelsInput Rise and Fall TimesInput Reference Levels

2.5V ≤ VCC ≤ 5.5V0.2VCC to 0.7VCC10ns0.5VCC

AC OPERATING CHARACTERISTICS:

VCC = +2.5V to +5.5V, VH = VCC, VL = 0V, unless otherwise specifiedSymbol

tCItDItIDtILtIHtICtCPHtCPHtIWtCYCtR, tF(2)tPU(2)tWR

Parameter

CS to INC SetupU/D to INC SetupU/D to INC HoldINC LOW PeriodINC HIGH Period

INC Inactive to CS Inactive

CS Deselect Time (NO STORE)CS Deselect Time (STORE)INC to VOUT ChangeINC Cycle Time

INC Input Rise and Fall TimePower-up to Wiper StableStore Cycle

Min

10050100250250110010—1———

Typ(1)

————————1———5

Max

————————5—500110

Units

nsnsnsnsnsµsnsmsµsµsµsmsecms

A. C. TIMING

CStCYC(store)tCIINCtILtIHtICtCPH90%10%90%tDItIDU/DtFtRtIWRWMI(3)(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.

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元器件交易网www.cecb2b.comCAT5115APPLICATIONS INFORMATIONPotentiometer Configurations(a) resistive divider(b) variable resistance(c) two-port+–ApplicationsA11V1(-)3+–R3R42+5V+5VR2R2A2798DPP+5VR1–+4A38U/U/VO2174RA1011RBR3R4+2.5VCAT5114/5113/5115V2(+)6–+{{+5VR1653}}pRPOT(1-p)RPOT7483R26255551.01F5C.01F,.003FProgrammable Instrumentation AmplifierProgrammable Sq. Wave Oscillator (555)IC3A1/4 74HC132OSC+5V10k0.01FCS+200mV20k6751.00V = VREFICIBU/DINCCS+–VCORR499k2499k+5V–+4111Sensor499kCAT5112/5111IC23VOUT = 1V + 1mVICIA100mV = VSHIFT-5V499k1V + 50mVVSENSRSensor Auto Referencing CircuitDoc. No. 2117, Rev. E

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元器件交易网www.cecb2b.comAPPLICATIONS INFORMATION100k+5V8U/21CAT5114/5113CAT5115VOUTV0 (REG)R111k6.8F.1R282074SHUTDOWN1F+5V8U/217Control andMemoryPOR4SDGNDFB1.23V6+5V}}VIN (UNREG)2952330pR(1-p)R33301M5+5V6A1310k2+–+S–I23–+74–+746A2VO356R310kLT1097+2.5VCAT5114/5113/5115Programmable Voltage RegulatorProgrammable I to V convertorCAT5112/5111R1100kR1100kR1+2.5V100kR1100k56+2.5VA1=A2=1/4 LMC6064A7A2+5V23C1.0011FR150kC2.001R3100k+5V+5V+5V764A1SerialBus–+VS–+VS+5V234111R2.5kIS–+VO+2.5VCAT5114/5113Programmable Bandpass Filter+5VIC274HC132OSC1Programmable Current Source/SinkIC139323VLLR1CLOR26710kR3+5VVUL0.1FCHIIC3CAT5114/5113+5V82U/D1INC7CS465+5V10k35–+VOAIIC42.5V < VO < 5VVS+2.5V0 < VS < 2.5VAutomatic Gain Control7

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CAT5115

ORDERING INFORMATION

PrefixCATDevice #5115SuffixSI-10TE13Tape & ReelSOIC: 2000/ReelTSSOP: 2000/ReelMSOP: 2500/ReelOptionalCompany IDProduct NumberResistance-10: 10kohms-50: 50kohms-00: 100kohmsPackageP: PDIPS: SOICU: TSSOPR: MSOPL: 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)

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CAT5115

REVISION HISTORY

Date9/25/2003

Rev.B

Reason

Changed designation to PreliminaryUpdated Description

Updated Potentiometer Parameters table

3/10/20043/29/20044/12/2004

CDE

Updated Potentiometer Parameters table

Changed Green Package marking for SOIC from W to VUpdated Reel Ordering Information

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4/12/04PreliminaryDoc. No. 2117, Rev. E