CAT5116ZI

CAT5116 Log-Taper, 100-Tap Digitally Programmable Potentiometer (DPP™) FEATURES 100-position, log-taper potentiometer Non-volatile EEPROM wiper storage 10nA ultra-low standby current Single-supply operation: 2.5V – 5.5V Increment Up/Down serial interface Resistance value: 32kΩ Available in 8-pin MSOP, TSSOP, SOIC and DIP packages DESCRIPTION The CAT5116 is a log-taper single digitally programmable potentiometer (DPP™) designed as a electronic replacement for mechanical potentiometers. Ideal for automated adjustments on high volume production lines, DPP ICs are well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment. The CAT5116 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, 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 effecting the stored setting. Wiper-control of the CAT5116 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 three-terminal resistive divider or as a two-terminal variable resistor. RH APPLICATIONS Automated product calibration Remote control adjustments Offset, gain and zero control Audio volume control Sensor adjustment Motor controls and feedback systems Programmable analog functions For Ordering Information details, see page 11. FUNCTIONAL DIAGRAM VCC VCC RH U/D INC CS Power On Recall RL GND Control and Memory RW U/D INC CS RH 165Ω LOG TAPER RTOT = 32kΩ INTERFACE & WIPER CONTROL Potentiometer R = 32kΩ RW RW EEPROM 11Ω 10.4Ω RL RL Potentiometer Schematic GND General Block Diagram © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 1 Doc. No. MD-2118 Rev. M CAT5116 PIN CONFIGURATION PDIP 8-Lead (L) SOIC 8 Lead (V) MSOP 8 Lead (Z) ¯¯¯ INC ¯ U/D RH GND 1 2 3 4 8 VCC ¯¯ CS RL RWB PIN DESCRIPTIONS Name Function TSSOP 8 Lead (Y) ¯¯ CS VCC ¯¯¯ INC ¯ U/D 1 2 3 4 8 RL RW GND RH ¯¯¯ INC ¯ U/D RH GND RW RL ¯¯ CS VCC Increment Control Up/Down Control Potentiometer High Terminal Ground Buffered Wiper Terminal Potentiometer Low Terminal Chip Select Supply Voltage CAT 7 6 5 CAT 7 6 5 PIN 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. 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 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 CAT5116 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 CAT5116 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 100 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 CAT5116 is selected and will ¯ respond to the U/D and INC inputs. HIGH to LOW transitions on INC wil 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 CAT5116 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 CAT5116 may be deselected 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. Doc. No. MD-2118 Rev. M 2 © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5116 RH OPERATING MODES ¯¯¯ INC High to Low High to Low High Low X ¯¯ CS Low Low Low to High Low to High High ¯ U/D High Low X X X Operation Wiper toward H Wiper toward L Store Wiper Position No Store, Return to Standby Standby CL RL Potentiometer Equivalent Circuit CH RWI RW CW ABSOLUTE MAXIMUM RATINGS(1) Parameters Supply Voltage VCC to GND Inputs ¯¯ CS to GND ¯¯¯ INC to GND ¯ U/D to GND RH to GND RL to GND RW to GND Symbol VZAP(2) ILTH(2) (3) TDR NEND Ratings -0.5 to +7V -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 Units V V V V V V V Parameters Operating Ambient Temperature Industrial (‘I’ suffix) Junction Temperature (10s) Storage Temperature Lead Soldering (10s max) Ratings -40 to +85 +150 +150 +300 Units ºC ºC ºC ºC RELIABILITY CHARACTERISTICS Parameter ESD Susceptibility Latch-Up Data Retention Endurance Test Method MIL-STD-883, Test Method 3015 JEDEC Standard 17 MIL-STD-883, Test Method 1008 MIL-STD-883, Test Method 1003 Min 2000 100 100 1,000,000 Typ Max Units V mA Years Stores DC ELECTRICAL CHARACTERISTICS VCC = +2.5V to +5.5V unless otherwise specified Power Supply Symbol VCC ICC1(4) ICC2 ISB1 Parameter Operating Voltage Range Supply Current (Increment) Supply Current (Write) Supply Current (Standby) VCC = 5.5V, f = 1MHz, IW = 0 VCC = 5.5V, f = 250kHz, IW = 0 Programming, VCC = 5.5V VCC = 3V ¯¯ = VCC - 0.3V CS ¯ ¯¯¯ U/D, INC = VCC - 0.3V or GND Conditions Min 2.5 – – Typ – – – Max 5.5 100 50 1 500 – 0.01 1 Units V µA µA mA µA µA 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 IW = source or sink © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 3 Doc. No. MD-2118 Rev. M CAT5116 Logic Inputs Symbol IIH IIL VIH1 VIL1 VIH2 VIL2 Parameter Input Leakage Current Input Leakage Current TTL High Level Input Voltage TTL Low Level Input Voltage CMOS High Level Input Voltage CMOS Low Level Input Voltage Conditions VIN = VCC VIN = 0V 4.5V ≤ VCC ≤ 5.5V 2.5V ≤ VCC ≤ 5.5V Min – – 2 0 VCC x 0.7 -0.3 Typ – – – – – – Max 10 -10 VCC 0.8 VCC + 0.3 VCC x 0.2 Units µA µA V V V V Potentiometer Parameters Symbol RPOT RTOL VRH VRL RV (1) Parameter Potentiometer Resistance Pot. Resistance Tolerance Voltage on RH pin Voltage on RL pin Relative Variation Wiper Resistance Wiper Current TC of Pot Resistance Ratiometric TC Noise Potentiometer Capacitances Frequency Response Conditions Min Typ 32 Max ±20 Units kΩ % V V Ω Ω mA ppm/ºC ppm/ºC nV/√Hz pF MHz 0 0 VCC = 5V, IW = 1mA VCC = 2.5V, IW = 1mA 200 400 300 VCC VCC 0.05 400 1000 1 20 RWI IW TCRPOT TCRATIO VN CH/CL/CW fc Note: 100kHz / 1kHz Passive Attenuator, 10kΩ 8/24 8/8/25 1.7 (1) Relative variation is a measure of the error in step size between taps = log (VW(N)) - log(VW(N-1)) = 0.045 ± 0.003. Doc. No. MD-2118 Rev. M 4 © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5116 AC CONDITIONS OF TEST VCC Range Input Pulse Levels Input Rise and Fall Times Input Reference Levels 2.5V ≤ VCC ≤ 5.5V 0.2VCC to 0.7VCC 10ns 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 tCPH1 tCPH2 tIW tCYC tR, tF tPU (2) (2) Parameter ¯¯ ¯¯¯ CS to INC Setup ¯ ¯¯¯ U/D to INC Setup ¯ ¯¯¯ U/D to INC Hold ¯¯¯ INC LOW Period ¯¯¯ INC HIGH Period ¯¯¯ ¯¯ INC Inactive to CS Inactive ¯¯ CS Deselect Time (NO STORE) ¯¯ CS Deselect Time (STORE) ¯¯¯ INC to VOUT Change ¯¯¯ INC Cycle Time ¯¯¯ INC Input Rise and Fall Time Power-up to Wiper Stable Store Cycle Min 100 50 100 250 250 1 100 10 – 1 – – Typ(1) – – – – – – – – 1 – – – 5 Max – – – – – – – – 5 – 500 1 10 Units ns ns ns ns ns µs ns ms µs µs µs ms ms tWR A.C. TIMING CS (store) tCPH 90% 10% tDI U /D tID tF tR 90% tCI INC tIL tCYC tIH tIC tIW RW MI(3) 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. © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 5 Doc. No. MD-2118 Rev. M CAT5116 TYPICAL CHARACTERISTICS VCC = 5V, TAMB = 25ºC, unless otherwise specified Wiper-Low/High Resistances vs. Wiper Position 100 90 80 70 60 50 40 30 20 10 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Wiper-Low Resistance vs. Wiper Position (log scale) 100. 0 Total Resistanc e (%) Total Resistanc e (% ) RH - RW RW - RL 10. 0 1.0 0.1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 WIPER POSITION WIPER POSITION Wiper Resistance vs. Wiper Voltage 600 500 400 300 200 100 0 0 1 2 3 4 W IPER VOLTAGE[V] 5 6 Standby Supply Current vs. Temperature 100 STANDBY CURRENT [nA] WIPE R RESISTANCE [ohm] VCC = 3.0V Tap 84 80 60 VCC = 5V VCC = 4.4V Tap 84 40 20 0 -40 -15 10 35 60 85 TEMPER ATURE [°C] VCC = 2.5V Doc. No. MD-2118 Rev. M 6 © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5116 PACKAGE OUTLINE DRAWINGS PDIP 8-Lead 300mils (L) (1)(2) SYMBOL MIN NOM MAX A A1 A2 b E1 5.33 0.38 2.92 0.36 1.14 0.20 9.02 7.62 6.10 7.87 2.92 3.30 3.30 0.46 1.52 0.25 9.27 7.87 2.54 BSC 6.35 7.11 10.92 3.80 4.95 0.56 1.78 0.36 10.16 8.25 b2 c D E e E1 eB PIN # 1 IDENTIFICATION D L TOP VIEW E A A2 A1 b2 L c e SIDE VIEW b eB END VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC standard MS-001. © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 7 Doc. No. MD-2118 Rev. M CAT5116 SOIC 8-Lead 150mils (V) (1)(2) SYMBOL MIN NOM MAX A A1 b c E1 E 1.35 0.10 0.33 0.19 4.80 5.80 3.80 1.27 BSC 0.25 0.40 0º 1.75 0.25 0.51 0.25 5.00 6.20 4.00 0.50 1.27 8º D E E1 e h L θ PIN # 1 IDENTIFICATION TOP VIEW D h A1 A θ c e b L END VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MS-012. Doc. No. MD-2118 Rev. M 8 © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5116 TSSOP 8-Lead 4.4mm (Y) (1)(2) b SYMBOL MIN NOM MAX A A1 A2 b c E1 E 1.20 0.05 0.80 0.19 0.09 2.90 6.30 4.30 3.00 6.40 4.40 0.65 BSC 1.00 REF 0.50 0° 0.60 0.75 8° 0.90 0.15 1.05 0.30 0.20 3.10 6.50 4.50 D E E1 e L L1 θ1 e TOP VIEW D c A2 A θ1 A1 SIDE VIEW L1 END VIEW L Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-153. © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 9 Doc. No. MD-2118 Rev. M CAT5116 MSOP 8-Lead 3.0 x 3.0mm (Z) (1)(2) SYMBOL MIN NOM MAX A A1 A2 b c D E E1 1.10 0.05 0.75 0.22 0.13 2.90 4.80 2.90 0.40 3.00 4.90 3.00 0.65 BSC 0.60 0.95 REF 0.25 BSC 0º 6º 0.80 0.10 0.85 0.15 0.95 0.38 0.23 3.10 5.00 3.10 E E1 e L L1 L2 θ TOP VIEW D A A2 DETAIL A A1 e SIDE VIEW b c END VIEW θ L2 L L1 DETAIL A Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-187. Doc. No. MD-2118 Rev. M 10 © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice CAT5116 EXAMPLE OF ORDERING INFORMATION Prefix CAT Device # 5116 Suffix V 1 I – G(4) T3 Optional Company ID Product Number 5116 Temperature Range I = Industrial (-40ºC to 85ºC) Package L: PDIP V: SOIC Y: TSSOP Z: MSOP Lead Finish G: NiPdAu Blank: Matte-Tin Tape & Reel T: Tape & Reel 3: 3,000/Reel ORDERING PART NUMBER CAT5116LI-G CAT5116VI-G CAT5116YI-G CAT5116ZI 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 CAT5116VI-GT3 (SOIC, Industrial Temperature, NiPdAu, Tape & Reel, 3,000/Reel). (4) For Matte-Tin finish, contact factory. © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 11 Doc. No. MD-2118 Rev. M CAT5116 REVISION HISTORY Date 09-Oct-03 10-Mar-04 29-Mar-04 12-Apr-04 01-Jun-07 21-Nov-08 13-Jan-09 Rev. G H I J K L M Description Revised Features Revised Potentiometer Schematic Revised DC Electrical Characteristics Updated Potentiometer Parameters Updated Potentiometer Parameters Changed Green Package marking for SOIC from W to V Eliminated data sheet designation Updated Reel Ordering Information Added Package Outline Updated Example of Ordering Information Added MD- in front of Document No. Update Package Outline Drawings Change logo and fine print to ON Semiconductor Update Ordering Part Number © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice 12 Doc. No. MD-2118 Rev. M