CAT5114 32‐tap Digital Potentiometer (POT) Description The CAT5114 is a single digital POT designed as an 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 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 new system values without affecting 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 digital POT can be used as a three-terminal resistive divider or as a two-terminal variable resistor. Digital POTs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing. Features 32-position Linear Taper Potentiometer Non-volatile EEPROM Wiper Storage Low Standby Current 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, MSOP and Space Saving 2 3 mm TDFN Packages These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant http://onsemi.com SOIC−8 V SUFFIX CASE 751BD MSOP−8 Z SUFFIX CASE 846AD PDIP−8 L SUFFIX CASE 646AA TSSOP−8 Y SUFFIX CASE 948AL TDFN−8 VP2 SUFFIX CASE 511AK PIN CONFIGURATIONS INC U/D RH GND 1 VCC CS RL RWB PDIP (L), SOIC (V), MSOP (Z) CS VCC INC U/D 1 RL RWB GND RH TSSOP (Y) Applications INC U/D 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 1 VCC CS RL RWB RH GND TDFN (VP2) (Top Views) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. Semiconductor Components Industries, LLC, 2013 June, 2013 − Rev. 23 1 Publication Order Number: CAT5114/D CAT5114 DEVICE MARKING INFORMATION PDIP RL4B CAT5114LI YMXXXX SOIC MSOP RL4B CAT5114VI YMXXXX R = Resistance: 2 = 10 kW 4 = 50 kW 5 = 100 kW L = Assembly Location 4 = Lead Finish − NiPdAu B = Product Revision (Fixed as “B”) CAT5114L = Device Code (PDIP) CAT5114V = Device Code (SOIC) I = Temperature Range (Industrial) Y = Production Year (Last Digit) M = Production Month (1−9, O, N, D) XXXX = Last Four Digits of Assembly Lot Number TSSOP A4RL 4YMXXX ABMS YMP ABMS = CAT5114ZI−10−GT3 ABMT = CAT5114ZI−50−GT3 ABTH = CAT5114ZI−00−GT3 Y = Production Year (Last Digit) M = Production Month (1−9, O, N, D) P = Product Revision A4 = 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, O, N, D) XXX = Last Three Digits of Assembly XXX = Lot Number TDFN EF = CAT5114VP2I10GT3 HF = CAT5114VP2I50GT3 GW = CAT5114VP2I00GT3 L = Assembly Location XXX = Last Three Digits of Assembly Lot Number Y = Production Year (Last Digit) M = Production Month (1−9, O, N, D) EFL XXX YM Functional Diagram VCC U/D INC CS 5−Bit Up/Down Counter INC CS Control and Memory Power On Recall GND RW/VW RL/VL VCC GND 29 5−Bit Nonvolatile Memory 28 32− Position Decoder 2 Store and Recall Control Circuitry Transfer Gates RW/VW Resistor Array 1 0 RL/VL RW/VW Figure 1. General RH/VH 30 RH/VH U/D RH/VH 31 Figure 2. Detailed http://onsemi.com 2 RL/VL Figure 3. Electronic Potentiometer Implementation CAT5114 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 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. Table 1. PIN DESCRIPTIONS Name Function INC Increment Control U/D Up/Down Control RH Potentiometer High Terminal GND Ground RW Wiper Terminal RL Potentiometer Low Terminal CS Chip Select VCC Supply Voltage 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 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 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 CAT5114 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 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. Pin Function INC: Increment Control Input The INC input 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. RW: Wiper Potentiometer Terminal 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. 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 http://onsemi.com 3 CAT5114 Table 2. 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 Figure 4. Potentiometer Equivalent Circuit Table 3. ABSOLUTE MAXIMUM RATINGS Parameters Ratings Supply Voltage VCC to GND −0.5 to +7 Inputs CS to GND −0.5 to VCC +0.5 Units V V INC to GND −0.5 to VCC +0.5 V U/D to GND −0.5 to VCC +0.5 V H to GND −0.5 to VCC +0.5 V L to GND −0.5 to VCC +0.5 V W to GND −0.5 to VCC +0.5 V Operating Ambient Temperature Industrial (‘I’ suffix) C −40 to +85 Junction Temperature +150 C Storage Temperature −65 to 150 C +300 C Lead Soldering (10 s max) 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 4. RELIABILITY CHARACTERISTICS Symbol Parameter VZAP (Note 1) ESD Susceptibility MIL−STD−883, Test Method 3015 2000 V Latch-up JEDEC Standard 17 100 mA Data Retention MIL−STD−883, Test Method 1008 100 Years Endurance MIL−STD−883, Test Method 1003 1,000,000 Stores ILTH (Notes 1, 2) TDR NEND Test Method Min Typ 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. http://onsemi.com 4 Max Units CAT5114 Table 5. DC ELECTRICAL CHARACTERISTICS (VCC = +2.5 V to +6 V unless otherwise specified) Parameter Min Typ Max Units 2.5 – 6.0 V VCC = 6 V, f = 1 MHz, IW = 0 – – 100 mA VCC = 6 V, f = 250 kHz, IW = 0 – – 50 mA Programming, VCC = 6 V – – 1000 mA VCC = 3 V – – 500 mA Supply Current (Standby) CS = VCC − 0.3 V U/D, INC = VCC − 0.3 V or GND – − 1 mA IIH Input Leakage Current VIN = VCC – – 10 mA IIL Input Leakage Current VIN = 0 V – – −10 mA 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 Symbol Conditions POWER SUPPLY VCC Operating Voltage Range ICC1 Supply Current (Increment) ICC2 Supply Current (Write) ISB1 (Note 4) LOGIC INPUTS POTENTIOMETER CHARACTERISTICS RPOT Potentiometer Resistance −10 Device 10 −50 Device 50 −00 Device 100 Pot. Resistance Tolerance VRH Voltage on RH pin 0 VRL Voltage on RL pin 0 Resolution 20 % VCC V VCC 3.2 V % INL Integral Linearity Error IW 2 mA 0.5 1 LSB DNL Differential Linearity Error IW 2 mA 0.25 0.5 LSB RWI Wiper Resistance VCC = 5 V, IW = 1 mA 70 200 W VCC = 2.5 V, IW = 1 mA 150 400 W IW Wiper Current TCRPOT TC of Pot Resistance TCRATIO Ratiometric TC VN CH/CL/CW fc 3. 4. 5. 6. kW Noise −4.4 100 kHz / 1 kHz Passive Attenuator, 10 kW 5 ppm/C 8/24 nV/Hz 8/8/25 pF 1.7 MHz 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 100 mA on address and data pins from −1 V to VCC + 1 V. IW = source or sink. These parameters are periodically sampled and are not 100% tested. http://onsemi.com mA ppm/C 20 Potentiometer Capacitances Frequency Response 4.4 300 CAT5114 Table 6. AC TEST CONDITIONS VCC Range 2.5 V VCC 6 V Input Pulse Levels 0.2 x VCC to 0.7 x VCC Input Rise and Fall Times 10 ns Input Reference Levels 0.5 x VCC Table 7. AC OPERATING CHARACTERISTICS (VCC = +2.5 V to +6.0 V, VH = VCC, VL = 0 V, unless otherwise specified) Parameter Symbol Min Typ (Note 7) Max Units 100 − − ns tCI CS to INC Setup 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 INC to VOUT Change − 1 5 ms INC Cycle Time 1 − − ms INC Input Rise and Fall Time − − 500 ms Power-up to Wiper Stable – – 1 ms Store Cycle – 5 10 ms tIW tCYC tR, tF (Note 8) tPU (Note 8) tWR 7. Typical values are for TA = 25C 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. CS tCI tIL tCYC tIC tIH (store) tCPH 90% INC 90% 10% tDI tID tF U/D tR MI(3) tIW RW Figure 5. A.C. Timing http://onsemi.com 6 CAT5114 APPLICATIONS INFORMATION (a) resistive divider (b) variable resistance (c) two−port Figure 6. Potentiometer Configuration Applications R1 4 CAT5113/5114 V2 (+) 6 5 R3 1 R4 – +5 V 8 Digital POT 2 1 7 A1 – +5 V 4A 9 – 3 10 8 + 11 R2 R2 A2 7 + R4 R3 2 1 7 +5 V 8 Digital POT 2 1 7 +5 V 8 4 1.23 V FB GND R1 11 kW 8 5 (1−p)R POT 3 555 5 2 0.01 mF 0.003 mF 1 0.01 mF Figure 8. Programmable Sq. Wave Oscillator (555) 2 1 7 +5 V 8 330 W pR (1−p)R 6 2 IS CAT5113/5114 4 0.1 mF 6.8 mF R3 10 kW 6 4 R2 C 3 5 7 6 R2 820 W 1 mF pRPOT +2.5 V VO (REG) 2952 CAT5113/5114 3 A1 = A2 = A3 = 1/4 LM6064 R2 = R3 = R4 = 5 kW RPOT = 10 kW VOUT SD 6 RB CAT5114 100 kW SHUTDOWN RA 4 VO Figure 7. Programmable Instrumentation Amplifier VIN (UNREG) +5 V R1 Digital POT 2 + Digital POT 3 V1 (−) 3 +5 V 7 – + 4 5 A1 6 1 MW 330 W 3 10 k 2 3 +5 V 7 – + LT1097 Figure 9. Programmable Voltage Regulator 4 A2 VO 6 +2.5 V Figure 10. Programmable I to V Convertor http://onsemi.com 7 CAT5114 C1 0.001 mF 1 mF VS 50 kW 0.001 mF R2 10 kW Digital POT 2 1 7 +5 V 8 C2 R1 4 R3 100 kW +5 V 2 7 – 3 + 4 VO 6 A1 +2.5 V CAT5113/5114 Figure 11. Programmable Bandpass Filter +5 V IC1 393 – IC2 74HC132 1 OSC CLO CHI 7 Digital POT + 4 – 0.1 mF IC3 CAT5114 +5 V 8 2 10 kW 1 7 + 10 kW 2 3 6 R1 VLL R2 R3 5 VUL +5 V +5 V 6 3 5 – + VS +2.5 V AI IC4 2.5 VO 5 V 0 VS 2.5 V Figure 12. Automatic Gain Control http://onsemi.com 8 VO CAT5114 Table 8. ORDERING INFORMATION Orderable Part Numbers Resistance Values (kW) CAT5114LI−10−G 10 CAT5114LI−50−G 50 CAT5114LI−00−G 100 CAT5114VI−10−GT3 10 CAT5114VI−50−GT3 50 CAT5114VI−00−GT3 100 CAT5114VP2I10GT3 (Notes 10, 11) 10 CAT5114VP2I50GT3 (Notes 10, 11) 50 CAT5114VP2I00GT3 (Notes 10, 11) 100 CAT5114YI−10−GT3 10 CAT5114YI−50−GT3 50 CAT5114YI−00−GT3 100 CAT5114ZI−10−GT3 10 CAT5114ZI−50−GT3 50 CAT5114ZI−00−GT3 100 Package−Pin Lead Finish Shipping† PDIP−8 NiPdAu 50 Units / Rail SOIC−8 NiPdAu 100 Units / Rail TDFN−8 2 x 3 mm NiPdAu 3000 / Tape & Reel TSSOP−8 NiPdAu 3000 / Tape & Reel MSOP−8 NiPdAu 96 Units / Rail †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. Contact factory for package availability. 11. Part number is not exactly the same as the “Example of Ordering Information” shown above. For the indicated part numbers there are NO hyphens in the orderable part numbers. 12. All packages are RoHS-compliant (Pb-Free, Halogen-Free). 13. The standard lead finish is NiPdAu. 14. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. http://onsemi.com 9 CAT5114 PACKAGE DIMENSIONS PDIP−8, 300 mils CASE 646AA ISSUE A 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 E1 6.10 6.35 7.11 e PIN # 1 IDENTIFICATION MAX 2.54 BSC eB 7.87 L 2.92 10.92 3.30 3.80 D TOP VIEW E A2 A A1 c b2 L e eB b SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MS-001. http://onsemi.com 10 CAT5114 PACKAGE DIMENSIONS SOIC 8, 150 mils CASE 751BD ISSUE O E1 E SYMBOL MIN A 1.35 1.75 A1 0.10 0.25 b 0.33 0.51 c 0.19 0.25 D 4.80 5.00 E 5.80 6.20 E1 3.80 MAX 4.00 1.27 BSC e PIN # 1 IDENTIFICATION NOM h 0.25 0.50 L 0.40 1.27 θ 0º 8º TOP VIEW D h A1 θ A c e b L END VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-012. http://onsemi.com 11 CAT5114 PACKAGE DIMENSIONS MSOP 8, 3x3 CASE 846AD ISSUE O SYMBOL MIN NOM MAX 1.10 A E A1 0.05 0.10 0.15 A2 0.75 0.85 0.95 b 0.22 0.38 c 0.13 0.23 D 2.90 3.00 3.10 E 4.80 4.90 5.00 E1 2.90 3.00 3.10 E1 0.65 BSC e L 0.60 0.40 0.80 L1 0.95 REF L2 0.25 BSC θ 0º 6º TOP VIEW D A A2 A1 DETAIL A e b c SIDE VIEW END VIEW q L2 Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-187. L L1 DETAIL A http://onsemi.com 12 CAT5114 PACKAGE DIMENSIONS TSSOP8, 4.4x3 CASE 948AL ISSUE O b SYMBOL MIN NOM 1.20 A E1 E MAX 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 3.10 E 6.30 6.40 6.50 E1 4.30 4.40 4.50 0.20 0.65 BSC e L 1.00 REF L1 0.50 θ 0º 0.60 0.75 8º e TOP VIEW D A2 c q1 A A1 L1 SIDE VIEW L END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. http://onsemi.com 13 CAT5114 PACKAGE DIMENSIONS TDFN8, 2x3 CASE 511AK ISSUE A D A e b E2 E PIN#1 IDENTIFICATION A1 PIN#1 INDEX AREA D2 TOP VIEW SIDE VIEW SYMBOL MIN NOM MAX A 0.70 0.75 0.80 A1 0.00 0.02 0.05 A2 0.45 0.55 0.65 A3 A2 A3 0.20 0.25 0.30 D 1.90 2.00 2.10 D2 1.30 1.40 1.50 E 2.90 3.00 3.10 E2 1.20 1.30 1.40 L BOTTOM VIEW 0.20 REF b e FRONT VIEW 0.50 TYP 0.20 0.30 L 0.40 Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MO-229. http://onsemi.com 14 CAT5114 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. 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