CAT5127, CAT5129 32-Tap Digitally Programmable Potentiometer (DPP™) FEATURES DESCRIPTION 32-position linear taper potentiometer The CAT5127/CAT5129 are single digitally programmable potentiometers (DPP™) designed as a 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. Non-volatile EEPROM wiper storage Low standby current Single supply operation: 2.5V – 5.5V Increment Up/Down serial interface Resistance values: 10kΩ, 50kΩ and 100kΩ CAT5127 in tiny 8-lead 2mm x 2.5mm TDFN and MSOP packages 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 ¯¯ , U/D ¯, 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. The CS ¯¯ input is used to select the device U/D and also store the wiper position prior to power down. CAT5129 in the 6-lead TSOT23 package APPLICATION 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 For Ordering Information details, see page 12. The devices are used as two-terminal variable resistors. DPPs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing. FUNCTIONAL DIAGRAM CAT5127 VCC RP CAT5129 VCC (U/D) (INC) (INC) RH (U/D) RH Control and Memory Control and Memory (CS) POR (CS) POR RL GND © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice GND 1 Doc. No. MD-2127 Rev. D CAT5127, CAT5129 PIN CONFIGURATION MSOP/TDFN CAT5127 ¯¯¯ INC 1 8 VCC ¯ U/D 2 ¯¯ 7 CS RH 3 6 RL GND 4 5 NC PIN DESCRIPTIONS Name Function ¯¯¯ INC ¯ U/D RH CAT5127 CAT5129 MSOP/TDFN SOT23 Increment Control 1 4 Up/Down Control 2 3 Potentiometer High Terminal 3 5 4 2 GND Ground TSOT23-6 CAT5129 ¯¯ CS 1 6 VCC GND 2 5 RH ¯ U/D 3 ¯¯¯ 4 INC NC No Connect 5 - RL Potentiometer Low Terminal 6 - ¯¯ CS Chip Select 7 1 VCC Supply Voltage 8 6 DEVICE DESCRIPTION ¯¯¯ : Increment Control Input INC ¯¯¯ input moves the wiper in the up or down The INC ¯ input. direction determined by the condition of the U/D 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. ¯ : Up/Down Control Input U/D ¯ input controls the direction of the wiper The U/D ¯¯ 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. ¯¯ : Chip Select CS The chip select input is used to activate the control input of the device and is active low. When in a high ¯¯¯ and U/D ¯ inputs will not affect state, activity on the INC or change the position of the wiper. CAT5127 has an ¯¯ input pin. internal pull-up resistor on the CS 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. Doc. No. MD-2127 Rev. D VCC: Supply Input for the device. 2 © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5127, CAT5129 DEVICE OPERATION ¯¯ set LOW, the device is selected and will With CS ¯ and INC ¯¯¯ inputs. HIGH to LOW respond to the U/D ¯¯¯ wil increment or decrement the transitions on INC ¯ input and wiper (depending on the state of the U/D 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 ¯¯¯ input is also HIGH. transitions HIGH while the INC 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. 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. ¯¯¯, U/D ¯ and Operation is controlled by three inputs, INC ¯¯ . These inputs control a five-bit up/down counter CS whose output is decoded to select the wiper position. The selected wiper position can be stored in ¯¯¯ and CS ¯¯ inputs. nonvolatile memory using the INC ¯¯¯ set low, the device may be de-selected and With INC 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. 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 Variable Resistor Equivalent Circuit © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice 3 Doc. No. MD-2127 Rev. D CAT5127, CAT5129 ABSOLUTE MAXIMUM RATINGS(1) Parameters Supply Voltage VCC to GND Inputs ¯¯ to GND CS ¯¯¯ to GND INC ¯ to GND U/D H to GND L to GND W 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 (10 sec 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 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) (3) (4) 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 100mA on address and data pins from -1V to VCC + 1V These parameters are periodically sampled and are not 100% tested. Doc. No. MD-2127 Rev. D 4 © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5127, CAT5129 DC ELECTRICAL CHARACTERISTICS VCC = +2.5V to +5.5V unless otherwise specified Power Supply Symbol VCC Parameter ICC1 CAT5129 Supply Current (Increment) ISB1(1) Min Operating Voltage Range CAT5127 Supply Current (Increment) ICC2 Conditions Supply Current (Write) Supply Current (Standby) Typ 2.5 Max Units 5.5 V VCC = 5.5V, f = 1MHz, IW = 0 260 µA VCC = 3.3V, f = 1MHz, IW = 0 150 µA VCC = 5.5V, f = 1MHz, IW = 0 160 µA VCC = 3.3V, f = 1MHz, IW = 0 50 µA Programming, VCC = 5.5V 300 600 µA Programming, VCC = 3.3V ¯¯ = VCC - 0.3V CS ¯ , INC ¯¯¯ = VCC or GND U/D 150 400 µA 0.35 1 µA Logic Inputs Symbol IIH Parameter CAT5127 Input Leakage Current CAT5129 Input Leakage Current IIL CAT5127 Input Leakage Current CAT5129 Input Leakage Current VIH2 CMOS High Level Input Voltage VIL2 CMOS Low Level Input Voltage VIH1 CAT5129 TTL High Level Input Voltage VIL1 Conditions Max Units ¯ , INC ¯¯¯ = VCC U/D 1 µA ¯¯ = VCC-0.3V CS 1 µA VIN = VCC 1 µA ¯ , INC ¯¯¯ = 0 U/D -1 µA -120 µA -1 µA VCC x 0.7 VCC + 0.3 V -0.3 VCC x 0.2 V 2 VCC V 0 0.8 V ¯¯ = 0 CS VIN = 0V 2.5V ≤ VCC ≤ 5.5V Typ 3.6V ≤ VCC ≤ 5.5V CAT5129 TTL Low Level Input Voltage © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice Min 5 Doc. No. MD-2127 Rev. D CAT5127, CAT5129 POTENTIOMETER CHARACTERISTICS Symbol Parameter Conditions Min Typ -10 Device 10 -50 Device 50 -00 Device 100 Max Units RPOT Potentiometer Resistance kΩ RTOL Pot Resistance Tolerance VRH Voltage on RH pin VRL Voltage on RL pin RES Resolution 3.2 INL Integral Linearity Error 0.5 1 LSB DNL Differential Linearity Error 0.25 0.5 LSB RWi Wiper Resistance VCC = 5V 70 100 Ω VCC = 2.5V 150 200 Ω ± 20 % 0 VCC V 0 VCC V % TCRPOT (3) TC of Pot Resistance ±30 ±300 ppm/ºC TCRATIO (3) Ratiometric TC ±3 20 ppm/ºC VN (3) CH/CL/CW Fc (3) Noise (3) 100kHz / 1kHz Potentiometer Capacitances Frequency Response Passive Attenuator, 10kΩ 8/24 nV/√Hz 8/8/25 pF 1.7 MHz Notes: (1) Latch-up protection is provided for stresses up to 100mA on address and data pins from -1V to VCC + 1V (2) IW = source or sink (3) These parameters are periodically sampled and are not 100% tested. Doc. No. MD-2127 Rev. D 6 © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5127, CAT5129 AC TEST CONDITIONS VCC Range 2.5V ≤ VCC ≤ 5.5V 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 +5.5V, VH = VCC, VL = 0V, unless otherwise specified Symbol tCI tDI tID tIL tIH tIC tCPH tCPH tIR tCYC tR, tF tPU (2) (2) tWR Parameter Min ¯¯ to INC ¯¯¯ Setup CS ¯ to INC ¯¯¯ Setup U/D 100 ns 50 ns ¯ to INC ¯¯¯ Hold U/D ¯¯¯ 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 RH Change INC ¯¯¯ Cycle Time INC Typ(1) Max 1 Units 5 µs 1 µs ¯¯¯ Input Rise and Fall Time INC Power-up to Wiper Stable Store Cycle 2 500 µs 1 ms 5 ms A.C. TIMING CS (store) tCYC tCI tIL tIC tIH tCPH 90% INC 90% 10% tDI tID tF U/D tR MI(3) tIR RH 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. © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice 7 Doc. No. MD-2127 Rev. D CAT5127, CAT5129 APPLICATION INFORMATION Potentiometer Configurations (a) resistive divider (b) variable resistance (c) two-port Applications 3 V1 (-) 2 + A1 R3 1 R4 DPP +5V 9 8 2 – R2 R1 1 8 2 +5V R2 + 10 +5V +5V – 4 RA R1 A3 } } 7 VO 8 4 11 7 CAT5127 V2 (+) 5 – R3 7 3 555 R4 6 +2.5V 7 + 8 4 (1-p)RPOT R2 4 A2 pRPOT 3 RB CAT5127 6 6 1 5 2 1 C 0.01µF 0.01µF 0.003µF Programmable Instrumentation Amplifier Programmable Sq. Wave Oscillator (555) +5V 100kΩ 8 2 CAT5127 1 7 V O (REG) R1 2952 VIN (UNREG) 0.1µF 4 6.8µF 11kΩ SHUTDOWN 1µF SD GND FB 6 2 820 8 3 1 IS R3 10k 7 CAT5127 4 330 1M 3 – 7 +5V 3 + 4 2 6 A1 – + 3 7 6 VO 4 A2 LT1097 6 +2.5V Programmable Voltage Regulator Doc. No. MD-2127 Rev. D (1-p)R +5V R2 +5V 2 pR 330 1.23V } } VOUT Programmable I to V convertor 8 © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5127, CAT5129 PACKAGE OUTLINE DRAWINGS MSOP 8-Lead 3.0 x 3.0mm (Z) SYMBOL MIN NOM A1 0.05 0.10 A2 0.75 0.85 b 0.22 MAX A E E1 1.10 0.15 0.95 0.38 c 0.13 D 2.90 3.00 3.10 0.23 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 Specification MO-187. © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice 9 Doc. No. MD-2127 Rev. D CAT5127, CAT5129 TDFN 8-Lead 2.5 x 2.0mm PIN#1 IDENTIFICATION SYMBOL MIN NOM MAX A 0.70 0.75 0.80 A1 0.00 0.02 0.05 A3 0.20 REF b 0.20 0.25 0.30 D 1.90 2.00 2.10 D2 1.40 1.50 1.60 E 2.40 2.50 2.60 E2 1.20 1.30 1.40 e L 0.50 TYP 0.20 0.30 0.40 A1 A3 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 specification MO-229. Doc. No. MD-2127 Rev. D 10 © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5127, CAT5129 TSOT-23 6-Lead (TD) SYMBOL D MIN NOM A e 1.00 A1 0.01 0.05 0.10 A2 0.80 0.87 0.90 b 0.30 c 0.12 D E1 E MAX 0.45 0.15 0.20 2.90 BSC E 2.80 BSC E1 1.60 BSC e 0.95 TYP L 0.30 0.40 L1 0.60 REF L2 0.25 BSC θ 0º 0.50 8º TOP VIEW A2 A b θ L A1 c L2 L1 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 specification MO-193. © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice 11 Doc. No. MD-2127 Rev. D CAT5127, CAT5129 EXAMPLE OF ORDERING INFORMATION Prefix Device # CAT Suffix 5127 Z I -10 – G Temperature Range I = Industrial (-40ºC to 85ºC) Company ID Product Number 5127 5129 Tape & Reel T: Tape & Reel 3: 3000/Reel Resistance -10: 10k ohms -50: 50k ohms -00: 100k ohms Package Z: MSOP TD: TSOT23 ZD7: TDFN T3 Lead Finish Blank: Matte-Tin G: NiPdAu ORDERING INFORMATION Device Ordering Part Number Resistor [kΩ] Top Marking Pin/Package Part Per Reel CAT5127 CAT5127ZI-10-T3 10 ABPU MSOP-8 3000 CAT5127ZI-50-T3 (5) 50 ABPV MSOP-8 3000 CAT5127ZI-00-T3 (5) 100 ABPY MSOP-8 3000 CAT5127ZI-10-GT3 10 ABNA MSOP-8 3000 CAT5127ZI-50-GT3 (5) 50 ABNB MSOP-8 3000 CAT5127ZI-00-GT3 (5) 100 ABNK MSOP-8 3000 CAT5127ZD7I-10-GT3 10 HB TDFN-8 3000 (5) 50 HC TDFN-8 3000 (5) 100 HD CAT5127ZD7I-50-GT3 CAT5127ZD7I-00-GT3 CAT5129 CAT5129TDI-10-T3 CAT5129TDI-50-T3 (5) CAT5129TDI-00-T3 (5) 10 TDFN-8 3000 (6) TSOT23-6 3000 (6) TSOT23-6 3000 (6) TSOT23-6 3000 (6) SWym 50 SXym 100 SYym CAT5129TDI-10-GT3 10 SJym TSOT23-6 3000 CAT5129TDI-50-GT3(5) 50 SUym(6) TSOT23-6 3000 (6) TSOT23-6 3000 CAT5129TDI-00-GT3 (5) 100 SVym Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) The device used in the above example is a CAT5127ZI-10-GT3 (MSOP, Industrial Temperature range, 10kΩ, NiPdAu, Tape & Reel). (4) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. (5) Contact factory for availability. (6) y = Production year (digit), m = Production month (digit). Doc. No. MD-2127 Rev. D 12 © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5127, CAT5129 REVISION HISTORY Date Rev. Description 18-Dec-06 A Initial Issue 23-Feb-07 B Updated the Functional Diagram Updated the DC Electrical Characteristics table 03-Aug-07 C Updated Package Outline Drawing Updated Ordering Information 21-Nov-08 D Change logo and fine print to ON Semiconductor ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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. 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 Opportunity/Affirmative Action Employer. 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] © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice 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: 81-3-5773-3850 13 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative Doc. No. MD-2127 Rev. D