CAT5110_08

CAT5110, CAT5118, CAT5119 CAT5123, CAT5124, CAT5125 32-Tap MiniPot™ Digitally Programmable Potentiometers with 2-Wire Interface FEATURES 0.3µA Ultra-low standby current Single-supply operation: 2.7V to 5.5V Glitchless switching between resistor taps Power-on reset to midscale 2-wire up/down serial interface Resistance values: 10kΩ, 50kΩ and 100kΩ Low wiper resistance: 80Ω for CAT5123, CAT5124, CAT5125 CAT5110, CAT5118, CAT5119 available in SC-70 DESCRIPTION CAT5110/18/19/23/24/25 linear-taper digitally programmable potentiometers perform the same function as a mechanical potentiometer or a variable resistor. These devices consist of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a 2-wire up/down serial interface. The CAT5110 and CAT5125 are configured as potentiometers. The CAT5118/19/23/24 are configured as variable resistors. Three resistance values are available: 10kΩ, 50kΩ and 100kΩ. All devices are available in space-saving 5-pin and 6-pin SOT-23 packages. The CAT5110/18/19 are also available in the SC-70 package. APPLICATIONS LCD screen adjustment Volume control Mechanical potentiometer replacement Gain adjustment Line impedance matching FUNCTIONAL DIAGRAM H VDD GND UP-DOWN COUNTER For Ordering Information details, see page 11. 32-POSITION DECODER CS W U/D PIN CONFIGURATION SOT-23 VDD 1 6 H VDD 1 L SOT-23 5 H VDD 1 SOT-23 6 H GND 2 5W GND 2 GND 2 5L U/D 3 CAT5110 CAT5125 4 CS U/D 3 CAT5118 CAT5123 4 CS U/D 3 CAT5119 CAT5124 4 CS SC-70 VDD 1 6 H VDD 1 SC-70 5 H VDD 1 SC-70 6 H GND 2 5W GND 2 GND 2 5L U/D 3 CAT5110 4 CS U/D 3 CAT5118 4 CS U/D 3 CAT5119 4 CS © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 Doc. No. MD-2120 Rev. J CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 PIN DESCRIPTIONS Pin Number CAT5110/ CAT5125 1 2 3 4 5 6 CAT5118/ CAT5123 1 2 3 4 6 CAT5119/ CAT5124 1 2 3 4 5 6 Pin Name VDD GND ¯ U/D ¯¯ CS L W H Description Power Supply Ground ¯¯¯¯¯ ¯¯ Up/Down Control Input. With CS low, a low-to-high transition increments or decrements the wiper position. ¯¯ Chip Select Input. A high-to-low CS transition determines the ¯ is high, or decrement if U/D is low. ¯ mode: increment if U/D Low Terminal of Resistor Wiper Terminal of Resistor High Terminal of Resistor ABSOLUTE MAXIMUM RATINGS (1) Parameters VDD to GND All Other Pins to GND Input and Output Latch-Up Immunity Maximum Continuous Current into H, L and W 100kΩ 50kΩ 10kΩ Continuous Power Dissipation (TA = +70ºC) 5-pin SC-70(2) 6-pin SC-70(2) Operating Temperature Range Junction Temperature Storage Temperature Range Soldering Temperature (soldering, 10s) Ratings -0.3 to +6 -0.3 to (VDD + 0.3) ±200 ±0.6 ±1.3 ±1.3 247 245 -40 to +85 +150 -65 to +150 +300 Units V V mA mA mW ºC ºC ºC ºC 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) Derate 3.1mW/ºC above TA = +70ºC Doc. No. MD-2120 Rev. J 2 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 ELECTRICAL CHARACTERISTICS VDD = 2.7V to 5.5V, VH = VDD, VL = 0, TA = -40ºC to +85ºC. Typical values are at VDD = 2.7V, TA = 25ºC, unless otherwise noted. Parameter DC Performance Resolution End-to-End Resistance (-00) End-to-End Resistance (-50) End-to-End Resistance (-10) End-to-End Resistance Tempco Ratiometric Resistance Tempco Integral Nonlinearity Differential Nonlinearity Full-Scale Error Zero-Scale Error Wiper Resistance Digital Inputs Input High Voltage Input Low Voltage ¯ ¯¯ U/D Mode to CS Setup ¯¯ ¯ CS to U/D Step Setup ¯¯ ¯ CS to U/D Step Hold ¯ U/D Step Low Period ¯ U/D Step High Period ¯¯¯¯¯ Up/Down Toggle Rate Output Settling Time (1) Symbol Conditions Min 32 80 40 8 Typ Max Units Taps 100 50 10 200 30 5 ±0.5 ±0.1 120 60 12 300 ±1 ±1 1 ppm/ºC ppm/ºC LSB LSB LSB LSB Ω 600 200 kΩ TCR CAT5110/18/19 CAT5123/24/25 INL DNL RW CAT5110/18/19 CAT5123/24/25 0.7 x VDD 200 80 VIH VIL tCU tCI tIC tIL tIH fTOGGLE tSETTLE 100kΩ variable resistor configuration, CL = 10pF 100kΩ potentiometer configuration, CL = 10pF V 0.3 x VDD V ns ns ns ns ns 1 1 μs 0.25 MHz Timing Characteristics (Figures 1, 2) 25 50 25 25 25 (2) Power Supply Supply Voltage Active Supply Current (3) (4) VDD IDD ISB 1 t SETTLE 2.7 VDD = +5V 0.3 5.5 25 1 V µA µA Standby Supply Current Notes: (1) (2) (3) (4) Up/Down Toggle Rate: fTOGGLE = Typical settling times are dependent on end-to-end resistance. Supply current measured while changing wiper tap, fTOGGLE = 1MHz. Supply current measured while wiper position is fixed. 3 Doc. No. MD-2120 Rev. J © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 TYPICAL OPERATING CHARACTERISTICS TA = 25ºC, unless otherwise noted. WIPER RESISTANCE vs. WIPER POSITION 140 120 100 CAT5110/5118/5119 END-TO-END RESISTANCE % CHANGE 160 CHANGE IN END-TO-END RESISTANCE vs. TEMPERATURE 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -50 CAT5110/5118/5119 CAT5123/5124/5125 W-TO-L RESISTANCE vs. TAP POSITION 120 100 RESISTANCE (k• ) 80 60 100k RW (• ) 80 60 40 20 0 0 5 CAT5123/5124/5125 50k 40 20 0 10k VDD = 2.7V 10 15 20 25 WIPER POSTION 30 0 50 100 1 3 5 7 9 1113151719212325272931 TAP POSITION TEMPERATURE (ºC) SUPPLY CURRENT vs. TEMPERATURE 0.45 0.40 0.35 VDD = 5.5V TAP-TO-TAP SWITCHING TRANSIENT CURRENT (µA) 0.30 0.25 0.20 0.15 0.10 0.05 0.00 -50 0 50 100 150 VDD = 2.7V U/D 2V/div WIPER OUTPUT 100mv/div TEMPERATURE (ºC) 200ns/div Doc. No. MD-2120 Rev. J 4 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 FUNCTIONAL DESCRIPTION The CAT5110/5118/5119/5123/5124/5125 consist of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a 2-wire up/down serial interface. Three end-to-end resistance values are available: 10kΩ, 50kΩ and 100kΩ. The CAT5110/5125 is designed to operate as a potentiometer. In this configuration, the low terminal of the resistor array is connected to ground (pin 2). The CAT5118/5123 performs as a variable resistor. In this device, the wiper terminal and high terminal of the resistor array are connected at pin 5. The CAT5119/5124 is a similar variable resistor, except the low terminal is connected to pin 5. Digital Interface Operation The MiniPots have two modes of operation when the serial interface is active: increment and decrement ¯¯ mode. The serial interface is only active when CS is low. ¯¯ ¯ The CS and U/D inputs control the position of the ¯¯ wiper along the resistor array. When CS transitions from high to low, the part will go into increment mode ¯ if U/D input is high, and into decrement mode when ¯ U/D input is low. Once the mode is set, the device will ¯¯ remain in that mode until CS goes high again. A low¯ to-high transition at the U/D pin will increment or decrement the wiper position depending on the current mode (Figures 1 and 2). ¯¯ When the CS input transitions to high (serial interface inactive), the value of the counter is stored and the wiper position is maintained. Note that when the wiper reaches the maximum (or minimum) tap position, the wiper will not wrap around to the minimum (or maximum) position. Power-On Reset All parts in this family feature power-on reset (POR) circuitry that sets the wiper position to midscale at power-up. By default, the chip is in the increment mode. CS t CU t IL U/D t IC t CI t SETTLE W Note: "W" is not a digital signal. It represents wiper transitions. t IH t SETTLE Figure 1. Serial Interface Timing Diagram, Increment Mode CS t CU t IH U/D t IC t IL W t CI t SETTLE t SETTLE Note: "W" is not a digital signal. It represents wiper transitions. Figure 2. Serial Interface Timing Diagram, Decrement Mode © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 5 Doc. No. MD-2120 Rev. J CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 APPLICATIONS INFORMATION The MiniPots are intended for circuits requiring digitally controlled adjustable resistance, such as LCD contrast control, where voltage biasing adjusts the display contrast. Alternative Positive LCD Bias Control An op amp can be used to provide buffering and gain on the output of the CAT5110/CAT5125. This can be done by connecting the wiper output to the positive input of a noninverting op amp as shown in Figure 3. Figure 4 shows a similar circuit for the CAT5119/ CAT5124. Adjustable Gain Figure 5 shows how to use either a variable resistor or a potentiometer to digitally adjust the gain of a noninverting op amp configuration, by connecting the Minipot in series with a resistor to ground. The MiniPots have a low 5ppm/ºC ratiometric tempco that allows for a very stable adjustable gain configuration over temperature. +5V H 30V W CAT5110/CAT5125 L VOUT +5V H 30V VOUT CAT5119/CAT5124 L Figure 3. Positive LCD Bias Control Figure 4. Positive LCD Bias Control V CC VIN VOUT VIN VCC VOUT H W L H CAT5118/CAT5123 L CAT5110/CAT5125 Figure 5a. Adjustable Gain Circuit Figure 5b. Adjustable Gain Circuit Doc. No. MD-2120 Rev. J 6 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 PACKAGE OUTLINE DRAWINGS SC-70 6-Lead (SD) (1)(2) D e e SYMBOL MIN NOM MAX A A1 A2 b c E1 E 0.80 0.00 0.80 0.15 0.10 1.80 1.80 1.15 0.26 2.00 2.10 1.25 0.65 BSC 0.36 0.42 REF 0.15 BSC 0° 4° 1.10 0.10 1.00 0.30 0.18 2.20 2.40 1.35 0.46 D E E1 e L L1 L2 θ θ1 TOP VIEW 8° 10° θ1 A2 A θ L L1 θ1 b A1 c END VIEW L2 SIDE 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 standard MS-203. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. MD-2120 Rev. J CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 SOT-23 6-Lead (TB) (1)(2) D e SYMBOL MIN NOM MAX A A1 A2 b c E1 E 0.90 0.00 0.90 0.30 0.08 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 0.30 0.45 0.60 REF 0.25 REF 0º 5º 5º 4º 10º 10º 1.15 1.45 0.15 1.30 0.50 0.22 D E E1 e L 0.60 PIN #1 IDENTIFICATION TOP VIEW L1 L2 θ θ1 θ2 8º 15º 15º θ1 A2 A θ θ2 SIDE VIEW b A1 L1 L2 L c 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 standard MO-178. Doc. No. MD-2120 Rev. J 8 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 SC-70 5-Lead (SD) (1)(2) D e e SYMBOL MIN NOM MAX A A1 A2 b c E1 E 0.80 0.00 0.80 0.15 0.10 1.80 1.80 1.15 0.26 2.00 2.10 1.25 0.65 BSC 0.36 0.42 REF 0.15 BSC 0° 4° 1.10 0.10 1.00 0.30 0.18 2.20 2.40 1.35 0.46 D E E1 e L L1 L2 θ θ1 TOP VIEW 8° 10° θ1 A2 A θ L L1 θ1 b A1 c END VIEW L2 SIDE 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 standard MS-203. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 9 Doc. No. MD-2120 Rev. J CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 SOT-23 5-Lead (TB) (1)(2) D SYMBOL MIN NOM MAX A A1 A2 b E1 E 0.90 0.00 0.90 0.30 0.08 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 0.30 0.45 0.60 REF 0.25 REF 0º 5º 5º 4º 10º 10º 1.15 1.45 0.15 1.30 0.50 0.22 c D E E1 e e PIN #1 IDENTIFICATION TOP VIEW L L1 L2 θ θ1 θ2 0.60 8º 15º 15º θ1 A2 A θ θ2 SIDE VIEW b A1 L1 L2 L c 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 standard MO-178. Doc. No. MD-2120 Rev. J 10 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 EXAMPLE OF ORDERING INFORMATION Prefix CAT Device # 5110 Suffix SD (1) I -10 – G T3 Optional Company ID Product Number 5110 5118 5119 5123 5124 5125 Temperature Range I = Industrial (-40ºC to 85ºC) Resistance -10: 10kΩ -50: 50kΩ -00: 100kΩ Tape & Reel T: Tape & Reel 3: 3,000/Reel Lead Finish Blank: Matte-Tin G: NiPdAu Package SD: SC-70 TB: SOT-23 For Product Top Mark Codes, click here: http://www.catsemi.com/techsupport/producttopmark.asp Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard finish is NiPdAu. (3) The device used in the example above is a CAT5110SDI-10 -GT3 (SC-70, Industrial Temperature, 10kΩ, NiPdAu, Tape & Reel, 3,000/Reel). (4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 11 Doc. No. MD-2120 Rev. J CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 ORDERING INFORMATION Device CAT5110 Ordering Part Number CAT5110SDI-10-GT3 CAT5110TBI-10-T3 CAT5110TBI-10-GT3 CAT5110SDI-50-GT3 CAT5110TBI-50-T3 CAT5110TBI-50-GT3 CAT5110SDI-00-GT3 CAT5110TBI-00-T3 CAT5110TBI-00-GT3 CAT5118 CAT5118SDI-10-GT3 CAT5118TBI-10-T3 CAT5118TBI-10-GT3 CAT5118SDI-50-GT3 CAT5118TBI-50-T3 CAT5118TBI-50-GT3 CAT5118SDI-00-GT3 CAT5118TBI-00-T3 CAT5118TBI-00-GT3 CAT5119 CAT5119SDI-10-GT3 CAT5119TBI-10-T3 CAT5119TBI-10-GT3 CAT5119SDI-50-GT3 CAT5119TBI-50-T3 CAT5119TBI-50-GT3 CAT5119SDI-00-GT3 CAT5119TBI-00-T3 CAT5119TBI-00-GT3 Resistor [kΩ] 10 10 10 50 50 50 100 100 100 10 10 10 50 50 50 100 100 100 10 10 10 50 50 50 100 100 100 Pin Package SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 SC70-5 SOT23-5 SOT23-5 SC70-5 SOT23-5 SOT23-5 SC70-5 SOT23-5 SOT23-5 SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 SC70-6 SOT23-6 SOT23-6 Parts Per Reel 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 Doc. No. MD-2120 Rev. J 12 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 Device CAT5123 Ordering Part number CAT5123TBI-10-T3 CAT5123TBI-10-GT3 CAT5123TBI-50-T3 CAT5123TBI-00-T3 (1) (1) Resistor [kΩ] 10 10 50 50 100 100 10 10 50 50 100 100 10 10 50 50 100 100 Pin Package SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 Parts Per Reel 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 CAT5123TBI-50-GT3 CAT5123TBI-00-GT3 CAT5124 CAT5124TBI-10-T3 CAT5124TBI-10-GT3 CAT5124TBI-50-T3 (1) (1) (1) (1) CAT5124TBI-50-GT3 CAT5124TBI-00-T3 (1) (1) CAT5124TBI-00-GT3 CAT5125 CAT5125TBI-10-T3 CAT5125TBI-10-GT3 CAT5125TBI-50-T3 CAT5125TBI-00-T3 (1) (1) CAT5125TBI-50-GT3 CAT5125TBI-00-GT3 (1) (1) Notes: (1) Contact factory for availability. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 13 Doc. No. MD-2120 Rev. J CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 REVISION HISTORY Date 03/10/2004 03/18/2004 07/19/2004 Rev. A B C Reason Initial Issue Update Typical Operating Characteristics Update SC70 package outline Added SOT-23 package in all areas Update Description Update Electrical Characteristics Update Typical Operating Characteristics Update Functional Description Added CAT5123, CAT5124, CAT5125 Update Features Update Description Update Pin Configuration Update Pin Description Update Electrical Characteristics Update Typical Operating Characteristics Update Functional Description Update Figures 3, 4, 5 and 6 Update Package Information Update Example of Ordering Information Update Ordering information Update Electrical Characteristics Update Package Outline Drawings Update Example of Ordering Information Update Ordering Information “Top Marking“ Update Electrical Characteristics Update Package Outline Drawings Update Ordering Information Add Top Mark Code link Delete 10,000 per reel option Update Document Layout 12/15/2006 D 01/29/2007 08/03/2007 E F 11/02/2007 01/29/2008 03/12/2008 29-May-08 G H I J Doc. No. MD-2120 Rev. J 14 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125 Copyrights, Trademarks and Patents © Catalyst Semiconductor, Inc. Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Adaptive Analog™, Beyond Memory™, DPP™, EZDim™, LDD™, MiniPot™, Quad-Mode™ and Quantum Charge Programmable™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor 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 Catalyst Semiconductor product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete. Catalyst Semiconductor, Inc. Corporate Headquarters 2975 Stender Way Santa Clara, CA 95054 Phone: 408.542.1000 Fax: 408.542.1200 www.catsemi.com Document No: MD-2120 Revision: J Issue date: 05/29/08