CAT5127, CAT5129 32‐tap Digital Potentiometers (POTs) Description The CAT5127/CAT5129 are single digital POTs 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 CAT5127 contains a 32-tap series resistor array connected between two terminals RH and RL. The CAT5129 contains a 32-tap series resistor array connected between two terminals RH and GND. An up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper. 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 effecting the stored setting. Wiper-control of the CAT5127/CAT5129 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 devices are used as two-terminal variable resistors. Digital POTs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing. 1 1 MSOP−8 Z SUFFIX CASE 846AD TSOT−23 TD SUFFIX CASE 419AF PIN CONFIGURATIONS CAT5127 MSOP (Z) INC U/D RH GND 1 VCC CS RL NC CAT5129 TSOT−23 (TD) 1 CS Features http://onsemi.com 32-position Linear Taper Potentiometer Non-volatile EEPROM Wiper Storage Low Standby Current Single Supply Operation: 2.5 V – 5.5 V Increment Up/Down Serial Interface Resistance Values: 10 kW, 50 kW and 100 kW CAT5127 in MSOP Packages CAT5129 in the 6-lead TSOT23 Package This Device is Pb-Free, Halogen Free/BFR Free and are RoHS Compliant VCC GND RH U/D INC (Top Views) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. 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 Semiconductor Components Industries, LLC, 2013 July, 2013 − Rev. 7 1 Publication Order Number: CAT5127/D CAT5127, CAT5129 CAT5127 CAT5129 VCC RP VCC (U/D) (INC) RH (U/D) RH (INC) Control and Memory Control and Memory (CS) POR (CS) POR RL GND GND Figure 1. Functional Diagrams Table 1. PIN DESCRIPTIONS Name Function CAT5127 CAT5129 MSOP/TDFN SOT23 INC Increment Control 1 4 U/D Up/Down Control 2 3 RH Potentiometer High Terminal 3 5 Ground 4 2 NC No Connect 5 − GND RL Potentiometer Low Terminal 6 − CS Chip Select 7 1 VCC Supply Voltage 8 6 DEVICE DESCRIPTION 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. RL: Low End Potentiometer Terminal (CAT5127 only) 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 device 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. CAT5127 has an internal pull-up resistor on the CS input pin. VCC: Supply Input for the device. http://onsemi.com 2 CAT5127, CAT5129 DEVICE OPERATION The CAT5127 operates like a digitally controlled variable resistor with RH and RL equivalent to the high and low terminals. 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 CAT5129 operates like a digitally controlled variable resistor with RH equivalent to the high terminal. There are 32 available tap positions including the resistor end points, RH and GND. There are 31 resistor elements connected in series between the RH and GND terminals. Operation is 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. The selected wiper position can be stored in nonvolatile memory using the INC and CS inputs. With CS set LOW, the device 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 five-bit counter). The wiper, when at either end 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 device 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 device 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. 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/GND High Low to High X Store Wiper Position Low Low to High X No Store, Return to Standby X High X Standby RH CH CL RL/GND Figure 2. Variable Resistor Equivalent Circuit http://onsemi.com 3 CAT5127, CAT5129 Table 3. ABSOLUTE MAXIMUM RATINGS Parameters Ratings Supply Voltage VCC to GND −0.5 to +7 Inputs CS to GND INC to GND U/D to GND H to GND L to GND W to GND −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 Operating Ambient Temperature Commercial (‘C’ or Blank suffix) Industrial (‘I’ suffix) Units V V C 0 to 70 −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 3. These parameters are periodically sampled and are not 100% tested. http://onsemi.com 4 Max Units CAT5127, CAT5129 Table 5. DC ELECTRICAL CHARACTERISTICS (VCC = +2.5 V to +5.5 V unless otherwise specified) Parameter Symbol Conditions Min Typ Max Units 5.5 V POWER SUPPLY VCC Operating Voltage Range ICC1 CAT5127 Supply Current (Increment) VCC = 5.5 V, f = 1 MHz, IW = 0 260 mA VCC = 3.3 V, f = 1 MHz, IW = 0 150 mA CAT5129 Supply Current (Increment) VCC = 5.5 V, f = 1 MHz, IW = 0 160 mA VCC = 3.3 V, f = 1 MHz, IW = 0 50 mA Supply Current (Write) Programming, VCC = 5.5 V 300 600 mA Programming, VCC = 3.3 V 150 400 mA CS = VCC − 0.3 V U/D, INC = VCC or GND 0.35 1 mA U/D, INC = VCC 1 mA CS = VCC − 0.3 V 1 mA ICC2 ISB1 (Note 4) Supply Current (Standby) 2.5 LOGIC INPUTS IIH CAT5127 Input Leakage Current IIL CAT5129 Input Leakage Current VIN = VCC 1 mA CAT5127 Input Leakage Current U/D, INC = 0 −1 mA −120 mA −1 mA VCC x 0.7 VCC + 0.3 V −0.3 VCC x 0.2 V 2 VCC V 0 0.8 V Max Units CS = 0 CAT5129 Input Leakage Current VIN = 0 V VIH2 CMOS High Level Input Voltage 2.5 V VCC 5.5 V VIL2 CMOS Low Level Input Voltage VIH1 CAT5129 TTL High Level Input Voltage VIL1 CAT5129 TTL Low Level Input Voltage 3.6 V VCC 5.5 V Table 6. POTENTIOMETER CHARACTERISTICS Symbol RPOT Parameter Potentiometer Resistance Conditions Min Typ −10 Device 10 −50 Device 50 −00 Device 100 RTOL Pot Resistance Tolerance VRH Voltage on RH pin VRL Voltage on RL pin RES Resolution 3.2 INL Integral Linearity Error DNL Differential Linearity Error RWi Wiper Resistance TCRPOT (Note 6) TC of Pot Resistance TCRATIO (Note 6) Ratiometric TC VN (Note 6) CH/CL/CW (Note 6) Fc (Note 6) Noise 20 % 0 VCC V 0 VCC V 0.5 1 LSB 0.25 0.5 LSB VCC = 5 V 70 100 W VCC = 2.5 V 150 200 W 30 300 ppm/C 3 20 ppm/C 100 kHz / 1 kHz Potentiometer Capacitances Frequency Response kW Passive Attenuator, 10 kW 8/24 nV/Hz 8/8/25 pF 1.7 MHz 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. http://onsemi.com 5 % CAT5127, CAT5129 Table 7. AC TEST CONDITIONS VCC Range 2.5 V VCC 5.5 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 8. AC OPERATING CHARACTERISTICS (VCC = +2.5 V to +5.5 V, VH = VCC, VL = 0 V, unless otherwise specified) Parameter Symbol Typ (Note 7) Min 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 tIR INC to RH Change tCYC 1 INC Cycle Time tR, tF (Note 8) 5 1 ms INC Input Rise and Fall Time tPU (Note 8) Power-up to Wiper Stable tWR ms Store Cycle 2 500 ms 1 ms 5 ms CS tCI tIL tCYC (store) tIC tIH tCPH 90% INC 90% 10% tDI tID tF U/D tR MI (Note 9) tIR RH Figure 3. A.C. Timing 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. http://onsemi.com 6 CAT5127, CAT5129 APPLICATION INFORMATION (a) resistive divider (b) variable resistance (c) two−port Figure 4. Potentiometer Configurations Applications + A1 R4 R3 1 2 R2 +5 V 8 2 1 7 R1 +5 V 4 A 9 3 – R2 10 + 11 +5 V +5 V 8 2 1 7 – VO 8 R1 RA } pRPOT 4 } (1−p)RPOT CAT5127 4 CAT5127 6 V2 (+) – 5 A2 + R3 R4 7 6 RB A1 = A2 = A3 = 1/4 LM 6064 R2 = R3 = R4 = 5 kW RPOT = 10 kW +5 V 8 2 1 7 4 1 mF CAT5127 5 2 C 0.01 mF 0.003 mF 1 0.01 mF Figure 6. Programmable Sq. Wave Oscillator (555) +5 V 8 VOUT FB 2 1 7 VO(REG) 2952 SD GND 555 6 100 kW SHUTDOWN 3 7 +2.5 V Figure 5. Programmable Instrumentation Amplifier VIN(UNREG) 3 R2 8 4 1.23 V R1 11 kW 0.1 mF CAT5127 4 6.8 mF 330 pR (1−p)R 6 R2 820 2 3 R3 10 k 6 IS 3 1M } } 3 V1 (−) +5 V 7 – 6 + 4 A1 3 330 2 3 – +5 V 7 + 6 VO 4 A2 LT1097 +2.5 V Figure 7. Programmable Voltage Regulator Figure 8. Programmable I to V Convertor http://onsemi.com 7 CAT5127, CAT5129 Table 9. ORDERING INFORMATION (Notes 10, 11) Device CAT5127 CAT5129 Resistor [kW] Top Marking Package/Pins Shipping† CAT5127ZI−10−GT3 10 ABNA MSOP−8 3000 / Tape & Reel CAT5127ZI−50−GT3 (Note 13) 50 ABNB MSOP−8 3000 / Tape & Reel CAT5129TDI−10GT3 10 SJym (Note 14) TSOT23−6 3000 / Tape & Reel CAT5129TDI−00GT3 100 SVym (Note 14) TSOT23−6 3000 / Tape & Reel Orderable Part Number †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. All packages are RoHS-compliant (Lead-free, Halogen-free). 11. The standard lead finish is NiPdAu. 12. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 13. Contact factory for availability. 14. y = Production year (digit), m = Production month (digit). 15. 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. http://onsemi.com 8 CAT5127, CAT5129 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 0.40 0.60 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 9 CAT5127, CAT5129 PACKAGE DIMENSIONS TSOT−23, 6 LEAD CASE 419AF ISSUE O SYMBOL D MIN NOM A e E1 MAX 1.00 A1 0.01 0.05 0.10 A2 0.80 0.87 0.90 b 0.30 c 0.12 E 0.45 0.15 D 2.90 BSC E 2.80 BSC E1 1.60 BSC e 0.95 TYP L 0.30 0.40 L1 0.20 0.50 0.60 REF L2 0.25 BSC 0º θ 8º TOP VIEW A2 A b q L A1 c L2 L1 SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-193. 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. 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. 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This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: [email protected] 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 http://onsemi.com 10 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative CAT5127/D