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CAT5115 ? catalyst semiconductor, inc. 1 doc. no. md-2117 rev. h characteristics subject to change without notice 32-tap digitally programmable potentiometer (dpp?) features ? 32-position linear taper potentiometer ? low power cmos technology ? single supply operation: 2.5v ? 6v ? increment up/down serial interface ? resistance values: 10k ? , 50k ? and 100k ? ? available in pdip, soic, tssop, msop and space saving 2 x 2.5mm tdfn packages 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 for ordering information details, see page 13. description the CAT5115 is a single digitally programmable potentiometer (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. the CAT5115 contains a 32-tap series resistor array connected between two terminals r h and r l . an up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, r w . the wiper is always set to the mid point, tap 15 at power up. the tap position is not stored in memory. wiper-control of the CAT5115 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. the digitally programmable potentiometer can be used as a three-terminal resistive divider or as a two-terminal variable resistor. dpps bring variability and program- mability to a wide variety of applications including control, parameter adjustm ents, and signal processing. for a pin-compatible device that recalls a stored tap position on power-up refer to the cat5114 data sheet. functional diagram r h r l control and power-on recall v cc gnd u/d inc cs r h r l r w r w electronic potentiometer implementation detailed general 32-position decoder up-down counter u/d v dd gnd r h /v h r l /v l r w /v w cs inc
CAT5115 doc. no. md-2117 rev. h 2 ? catalyst semiconductor, inc. characteristics subject to change without notice pin configuration pdip 8-lead (l), soic 8-lead (v), msop 8-lead (z) inc 1 8 v cc u/d 2 7 cs r h 3 6 r l gnd 4 5 r wb cat tssop 8-lead (y) cs 1 8 r l v cc 2 7 r wb inc 3 6 gnd u/d 4 5 r h cat tdfn 8-pad (zd7) top view inc 1 8 v cc u/d 2 7 cs r h 3 6 r l gnd 4 5 r wb pin descriptions name function inc increment control u/d up/down control r h potentiometer high terminal gnd ground r w buffered wiper terminal r l potentiometer low terminal cs chip select v cc supply voltage 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 r h 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 r l terminal. r h : high end potentiometer terminal r h is the high end terminal of the potentiometer. it is not required that this terminal be connected to a potential greater than the r l terminal. voltage applied to the r h terminal cannot exceed the supply voltage, v cc or go below ground, gnd. r w : wiper potentiometer terminal r w 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 r w terminal cannot exceed the supply voltage, v cc or go below ground, gnd. r l : low end potentiometer terminal r l is the low end terminal of the potentiometer. it is not required that this terminal be connected to a potential less than the r h terminal. voltage applied to the r l terminal cannot exceed the supply voltage, v cc or go below ground, gnd. r l and r h are electrically interchangeable. cs : chip select the chip select input is used to activate the control input of the CAT5115 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 CAT5115 operates like a digitally controlled potentiometer with r h and r l equivalent to the high and low terminals and r w equivalent to the mechanical potentiometer's wiper. there are 32 available tap positions including the resistor end points, r h and r l . there are 31 resistor elements connected in series between the r h and r l 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 five-bit up/down counter whose output is decoded to select the wiper position. with cs set low the CAT5115 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 fixed terminal, acts like its mechanical equivalent and does not move beyond the last position. when the CAT5115 is powered-down, the wiper position is reset. when power is restored, the counter is set to the mid point, tap 15.
CAT5115 ? catalyst semiconductor, inc. 3 doc. no. md-2117 rev. h characteristics subject to change without notice 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 absolute maximum ratings (1) parameters ratings units parameters ratings units supply voltage operating ambient temperature v cc to gnd -0.5 to +7v v industria l (?i? suffix) -40 to +85 oc inputs junction temperature +150 oc cs to gnd -0.5 to v cc +0.5 v storage temperature -65 to 150 oc inc to gnd -0.5 to v cc +0.5 v lead soldering (10s max) +300 oc u/d to gnd -0.5 to v cc +0.5 v h to gnd -0.5 to v cc +0.5 v l to gnd -0.5 to v cc +0.5 v w to gnd -0.5 to v cc +0.5 v reliability characteristics symbol parameter test method min typ max units v zap (2) esd susceptibility mil-std-883, test method 3015 2000 v i lth (2) (3) latch-up jedec standard 17 100 ma t dr data retention mil-std-883, test method 1008 100 years n end endurance mil-std-883, test method 1003 1,000,000 stores dc electrical characteristics v cc = +2.5v to +6v unless otherwise specified power supply symbol parameter conditions min typ max units v cc operating voltage range 2.5 ? 6 v v cc = 6v, f = 1mhz, i w = 0 ? ? 100 a i cc1 supply current (increment) v cc = 6v, f = 250khz, i w = 0 ? ? 50 a i sb1 (3) supply current (standby) cs = v cc - 0.3v u/d , inc = v cc - 0.3v or gnd ? 0.01 1 a notes: (1) stresses above those listed under ?absolut e maximum ratings? may cause permanent dam age to the device. these are stress rat ings only, and functional operation of the device at these or any ot her conditions outside of those lis ted in the operational sectio ns of this specification is not implied. exposure to any absolute maximum rating for extended pe riods may affect device performance and re liability. (2) this parameter is tested initially and after a design or process change that affects the parameter. (3) latch-up protection is provided for stresses up to 100ma on address and data pins from -1v to v cc + 1v. (4) i w = source or sink. (5) these parameters are periodically sampled and are not 100% tested. c h r h r wi r w potentiometer equivalent circui t c w c l r l
CAT5115 doc. no. md-2117 rev. h 4 ? catalyst semiconductor, inc. characteristics subject to change without notice logic inputs symbol parameter conditions min typ max units i ih input leakage current v in = v cc ? ? 10 a i il input leakage current v in = 0v ? ? -10 a v ih1 ttl high level input voltage 2 ? v cc v v il1 ttl low level input voltage 4.5v v cc 5.5v 0 ? 0.8 v v ih2 cmos high level input voltage v cc x 0.7 ? v cc + 0.3 v v il2 cmos low level input voltage 2.5v v cc 6v -0.3 ? v cc x 0.2 v potentiometer characteristics symbol parameter conditions min typ max units -10 device 10 -50 device 50 r pot potentiometer resistance -00 device 100 k ? pot. resistance tolerance 20 % v rh voltage on r h pin 0 v cc v v rl voltage on r l pin 0 v cc v resolution 3.2 % inl integral linearity error i w 2a 0.5 1 lsb dnl differential linearity error i w 2a 0.25 0.5 lsb v cc = 5v, i w = 1ma 70 200 ? r wi wiper resistance v cc = 2.5v, i w = 1ma 150 400 ? i w wiper current (1) 1 ma tc rpot tc of pot resistance 50 300 ppm/oc tc ratio ratiometric tc 20 ppm/oc v n noise 100khz / 1khz 8/24 nv/ hz c h /c l /c w potentiometer capacitances 8/8/25 pf fc frequency response passive attenuator, 10k ? 1.7 mhz
CAT5115 ? catalyst semiconductor, inc. 5 doc. no. md-2117 rev. h characteristics subject to change without notice ac conditions of test v cc range 2.5v v cc 6.0v input pulse levels 0.2v cc to 0.7v cc input rise and fall times 10ns input reference levels 0.5v cc ac operating characteristics v cc = +2.5v to +6.0v, v h = v cc , v l = 0v, unless otherwise specified symbol parameter min typ (1) max units t ci cs to inc setup 100 ? ? ns t di u/d to inc setup 50 ? ? ns t id u/d to inc hold 100 ? ? ns t il inc low period 250 ? ? ns t ih inc high period 250 ? ? ns t ic inc inactive to cs inactive 1 ? ? s t cph cs deselect time 100 ? ? ns t iw inc to v out change ? 1 5 s t cyc inc cycle time 1 ? ? s t r , t f (2) inc input rise and fall time ? ? 500 s t pu (2) power-up to wiper stable ? ? 1 ms a.c. timing notes: (1) typical values are for t a = 25oc and nominal supply voltage. (2) this parameter is periodically sampled and not 100% tested. (3) mi in the a.c. timing diagram refers to the minimum incr emental change in the w output due to a change in the wiper positio n. cs inc u/d r w t ci t il mi (3) 90% 90% 10% (store) t cyc t ih t ic t cph t f t r t di t id t iw
CAT5115 doc. no. md-2117 rev. h 6 ? catalyst semiconductor, inc. characteristics subject to change without notice applications information potentiometer configuration applications programmable instrumentation amplifier programmable sq. wave oscillator (555) sensor auto referencing circuit (a) resistive divider (b) variable resistance (c) two-port +5v 0.01f 0.01f 0.003f pr pot (1-p)r pot r 2 c r 1 r b r a 5 3 6 7 8 4 1 2 65 3 2 8 1 7 4 +5v dpp 555 +5v -5v v ref = 1v v out = 1v 1mv v shift = 100mv v sensor = 1v 50mv icia v corr 4 11 1 499k ? 20k ? icib 499k ? 2 3 6 5 499k ? 499k ? 10k ? 0.01f osc cs ic3a ? 74hc132 + ? + ? sensor 2 8 1 7 7 4 +5v +200mv cat5111/5112 ic2 dpp + ? r 2 r 3 a 3 a 1 = a 2 = a 3 = ? lm6064 r 2 = r 3 = r 4 = 5k ? r pot = 10k ? +5v +2.5v v o r 4 r 3 r 4 r 2 r 1 2 8 3 2 6 5 7 9 4 10 11 8 1 1 7 4 + ? + ? + ? +5v v 1 (-) v 2 (+) cat5113/5114/5115 dpp
CAT5115 ? catalyst semiconductor, inc. 7 doc. no. md-2117 rev. h characteristics subject to change without notice programmable voltage regulator programmable i to v converter automatic gain control programmable bandpass filter programmable current source/sink c a t5111/5112 +5v +5v serial bus v s +2.5v +2.5v +5v 2 7 7 5 6 3 11 1 + ? + ? r 1 100k ? r 1 100k ? a 1 =a 2 = lmc6064a r 2.5k ? i s a 2 r 1 100k ? r 1 100k ? + ? +5v r3 100k ? r2 10k ? r1 c 2 c 1 0.001f 0.001f 1f 2 7 3 4 6 + ? 2 8 1 7 4 +5v cat5113/5114 dpp v o a 1 v s +2.5v 50k ? +2.5v v o a 1 +5v i s 2 7 3 3 5 4 6 6 + ? a 2 lt1097 +5v 2 7 3 4 6 + ? 2 8 1 7 4 +5v cat5113/5114 dpp pr (1-p)r 330 ? 330 ? 1m ? 10k + ? + ? + ? +5v +5v clo r 1 r 3 r 2 v ll ic1 393 v ul 2 3 10k ? osc ic2 74hc132 0.1f chi 6 5 7 v s 0 v s 2.5v 2.5 v o 5v v o +2.5v ic3 cat5114/5113 ai ic4 2 8 1 7 4 +5v +5v 10k ? 5 6 3 inc u/d cs 1 1f 100 k ? 2 8 1 7 4 5 6 +5v control and memory por 2952 cat5113/5114/5115 v out fb sd shutdown v in (unreg) gnd 0.1f 6.8f r 1 11 k ? v o (reg) r 3 10 k ? r 2 820 ? 3 1.23v
CAT5115 doc. no. md-2117 rev. h 8 ? catalyst semiconductor, inc. characteristics subject to change without notice package outline drawings pdip 8-lead 300mils (l) (1)(2) notes: (1) all dimensions are in millimeters. (2) complies with jedec standard ms-001. for current tape and reel information, download the pdf file from: http://www.catsemi.com/documents/tapeandreel.pdf. e1 d a l eb b2 a1 a2 e eb c top view side view end view pin # 1 identification symbol min nom max a5.33 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 e 2.54 bsc e1 6.10 6.35 7.11 eb 7.87 10.92 l 2.92 3.30 3.80
CAT5115 ? catalyst semiconductor, inc. 9 doc. no. md-2117 rev. h characteristics subject to change without notice soic 8-lead 150mils (v) (1)(2) notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec standard ms-012. for current tape and reel information, download the pdf file from: http://www.catsemi.com/documents/tapeandreel.pdf. e1 e a a1 h l c e b d pin # 1 identification top view side view end view a1.35 1.75 a1 0.10 0.25 b0.33 0.51 c0.19 0.25 d 4.80 5.00 e 5.80 6.20 e1 3.80 4.00 e 1.27 bsc h0.25 0.50 l0.40 1.27 0o 8o symbol min nom max
CAT5115 doc. no. md-2117 rev. h 10 ? catalyst semiconductor, inc. characteristics subject to change without notice tssop 8-lead 4.4mm (y) (1)(2) notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec standard mo-153. for current tape and reel information, download the pdf file from: http://www.catsemi.com/documents / tapeandreel.pdf. a2 e1 e a1 e b d c a top view side view end view 1 l1 l symbol min nom max a1.20 a1 0.05 0.15 a2 0.80 0.90 1.05 b0.19 0.30 c0.09 0.20 d 2.90 3.00 3.10 e 6.30 6.40 6.50 e1 4.30 4.40 4.50 e 0.65 bsc l 1.00 ref l1 0.50 0.60 0.75 10 8
CAT5115 ? catalyst semiconductor, inc. 11 doc. no. md-2117 rev. h characteristics subject to change without notice msop 8-lead 3.0 x 3.0mm (z) (1)(2) notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec standard mo-187. for current tape and reel information, download the pdf file from: http://www.catsemi.com/documents/tapeandreel.pdf. e1 e a2 a1 e b d c a top view side view end view l1 l2 l detail a detail a symbol min nom max a1.10 a1 0.05 0.10 0.15 a2 0.75 0.85 0.95 b0.22 0.38 c0.13 0.23 d 2.90 3.00 3.10 e 4.80 4.90 5.00 e1 2.90 3.00 3.10 e 0.65 bsc l 0.40 0.60 0.80 l1 0.95 ref l2 0.25 bsc 0o 6o
CAT5115 ? catalyst semiconductor, inc. 12 doc. no. md-2117 rev. h characteristics subject to change without notice tdfn 8-pad 2 x 2.5mm (zd7) (1)(2) notes: (1) all dimensions are in millimeters. (2) complies with jedec standard mo-229. for current tape and reel information, download the pdf file from: http://www.catsemi.com/documents/tapeandreel.pdf. a1 a3 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 e0.50typ l 0.20 0.30 0.40
CAT5115 ? catalyst semiconductor, inc. 13 doc. no. md-2117 rev. h characteristics subject to change without notice example of ordering information (1) ordering part number CAT5115li-10-g CAT5115li-50-g CAT5115li-00-g CAT5115vi-10-g CAT5115vi-50-g CAT5115vi-00-g CAT5115yi-10-g CAT5115yi-50-g CAT5115yi-00-g CAT5115zi-10-g CAT5115zi-50-g CAT5115zi-00-g CAT5115zd7i-10 (6) CAT5115zd7i-50 (6) CAT5115zd7i-00 (6) notes: (1) all packages are rohs-compli ant (lead-free, halogen-free). (2) the standard lead finish is nipdau. (3) this device used in the abov e example is a CAT5115vi-10-gt3 (soic, industrial temperature, 10k ? , nipdau, tape & reel). (4) for additional package and temperature options, please contact your nearest ca talyst semiconductor sales office. (5) tdfn is not available in nipdau (-g) version. (6) contact factory for package availability. prefix device # suffix cat 5115 v i -10 ? g t3 optional company id temperature range i = industrial (-40oc to 85oc) resistance -10: 10 k ? -50: 50 k ? -00: 100 k ? lead finish blank: matte-tin g: nipdau package l: pdip v: soic y: tssop z: msop zd7: tdfn (5) tape & reel t: tape & reel 3: 3000/reel product number 5115
revision history date rev. reason 09/25/2003 b changed designation to preliminary. updated description. updated potentiometer parameters table. 03/10/2004 c updated potentiometer parameters table. 03/29/2004 d changed green package marking for soic from w to v 04/12/2004 e updated tape and reel specs in ordering information 08/31/2004 f deleted icc2 from dc characteristics table updated ac operating characteristics table updated a.c. timing diagram. 07/06/2007 g update absolute ma ximum ratings table update dc electrical characteristics tables update ac conditions of test table update all package outline drawings update example of ordering information update ordering part number 02/04/2008 h update functional diagram update package outline drawings catalyst semiconductor, inc. corporate headquarters 2975 stender way santa clara, ca 95054 phone: 408.542.1000 document no: md-2117 fax: 408.542.1200 revision: h www.catsemi.com issue date: 02/04/08 copyrights, trademarks and patents ? catalyst semiconductor, inc. trademarks and register ed trademarks of catalyst semiconductor include each of the following: adaptive analog?, beyond memory?, dpp?, ezdim?, ldd?, minipot?, quad-mode? and quant um charge programmable? catalyst semiconductor has been issued u. s. and foreign patents and has patent applicat ions pending that protect its products. catalyst semiconductor makes no warranty, representation or guar antee, express or implied, regarding the suitability of its products for any particular purpose, nor that the use of its pro ducts 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 aris ing 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 surgica l 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 semiconduct or product could create a situation where personal injury or death may occur. catalyst semiconductor reserves the right to make changes to or discontinue any produ ct or service descr ibed herein without not ice. products with data sheets labeled "advance information" or "preliminary" and other products described herein may not be in pr oduction or offered for sale. catalyst semiconductor advises customers to obtain the current version of the rele vant product informati on before placing order s. circuit diagrams illustrate typical semiconductor applications and may not be complete.

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