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? semiconductor components industries, llc, 2010 october, 2010 ? rev. 9 1 publication order number: cat5115/d cat5115 32-tap digitally program- mable potentiometer (dpp ) description the cat5115 is a single digitally programmable potentiometer (dpp ) 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 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 programmability to a wide variety of applications including control, parameter adjustments, and signal processing. for a pin ? compatible device that recalls a stored tap position on power ? up refer to the cat5114 data sheet. features ? 32 ? position linear taper potentiometer ? low power cmos technology ? single supply operation: 2.5 v ? 6.0 v ? increment up/down serial interface ? resistance values: 10 k , 50 k and 100 k ? available in pdip, soic, tssop, msop and space saving 2 x 2.5 mm tdfn packages ? these devices are pb ? free, halogen free/bfr free and are rohs compliant 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 http://onsemi.com pin configurations r h r wb r l u/d inc v cc cs 1 see detailed ordering and shipping information in the package dimensions section on page 13 of this data sheet. ordering information soic ? 8 v suffix case 751bd msop ? 8 z suffix case 846ad gnd pdip (l), soic (v), msop (z) pdip ? 8 l suffix case 646aa tssop ? 8 y suffix case 948al tssop (y) (top views) gnd r h u/d inc r wb cs v cc r l 1 tdfn ? 8 zd7 suffix case 511aj tdfn (zd7) gnd r h u/d inc r wb cs v cc r l 1
cat5115 http://onsemi.com 2 functional diagram figure 1. general figure 2. detailed figure 3. electronic potentiometer implementation control and power ? on recall gnd 32 ? position decoder up ? down counter gnd r l r w r h v cc u/d cs inc u/d cs inc v dd r w /v w r h /v h r l /v l r h r w r l table 1. 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 http://onsemi.com 3 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 high low to high x store wiper position low low to high x no store, return to standby x high x standby figure 4. potentiometer equivalent circuit c w r l c l c h r w r wi r h table 3. absolute maximum ratings parameters ratings units supply voltage v cc to gnd ? 0.5 to +7 v inputs cs to gnd ? 0.5 to v cc +0.5 v inc to gnd ? 0.5 to v cc +0.5 v 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 operating ambient temperature industrial (?i? suffix) ? 40 to +85 c junction temperature +150 c storage temperature ? 65 to 150 c lead soldering (10 s max) +300 c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. table 4. reliability characteristics symbol parameter test method min typ max units v zap (note 1) esd susceptibility mil ? std ? 883, test method 3015 2000 v i lth (notes 1, 2) 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 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 v cc + 1 v.
cat5115 http://onsemi.com 4 table 5. dc electrical characteristics (v cc = +2.5 v to +6 v unless otherwise specified) symbol parameter conditions min typ max units power supply v cc operating voltage range 2.5 ? 6.0 v i cc1 supply current (increment) v cc = 6 v, f = 1 mhz, i w = 0 ? ? 100 a v cc = 6 v, f = 250 khz, i w = 0 ? ? 50 a i sb1 (note 4) supply current (standby) cs = v cc ? 0.3 v u/d , inc = v cc ? 0.3 v or gnd ? 0.01 1 a logic inputs i ih input leakage current v in = v cc ? ? 10 a i il input leakage current v in = 0 v ? ? ? 10 a v ih1 ttl high level input voltage 4.5 v v cc 5.5 v 2 ? v cc v v il1 ttl low level input voltage 0 ? 0.8 v v ih2 cmos high level input voltage 2.5 v v cc 6 v v cc x 0.7 ? v cc + 0.3 v v il2 cmos low level input voltage ? 0.3 ? v cc x 0.2 v potentiometer characteristics r pot potentiometer resistance ? 10 device 10 k ? 50 device 50 ? 00 device 100 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 2 a 0.5 1 lsb dnl differential linearity error i w 2 a 0.25 0.5 lsb r wi wiper resistance v cc = 5 v, i w = 1 ma 70 200 v cc = 2.5 v, i w = 1 ma 150 400 i w wiper current (1) 1 ma tc rpot tc of pot resistance 50 300 ppm/ c tc ratio ratiometric tc 20 ppm/ c v n noise 100 khz / 1 khz 8/24 nv/ hz c h /c l /c w potentiometer capacitances 8/8/25 pf fc frequency response passive attenuator, 10 k 1.7 mhz 3. this parameter is tested initially and after a design or process change that affects the parameter. 4. latch ? up protection is provided for stresses up to 100 ma on address and data pins from ? 1 v to v cc + 1 v. 5. i w = source or sink. 6. these parameters are periodically sampled and are not 100% tested.
cat5115 http://onsemi.com 5 table 6. ac test conditions v cc range 2.5 v v cc 6.0 v input pulse levels 0.2 x v cc to 0.7 x v cc input rise and fall times 10 ns input reference levels 0.5 x v cc table 7. ac operating characteristics (v cc = +2.5 v to +6.0 v, v h = v cc , v l = 0 v, unless otherwise specified) symbol parameter min typ (note 7) 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 (note 8) inc input rise and fall time ? ? 500 s t pu (note 8) power ? up to wiper stable ? ? 1 ms 7. typical values are for t a = 25 c 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. figure 5. a.c. timing 90% 90% 10% (store) t r t f mi (3) t ic t cph t iw r w u/d inc cs t ci t di t id t il t ih t cyc
cat5115 http://onsemi.com 6 applications information (a) resistive divider (b) variable resistance (c) two ? port figure 6. potentiometer configuration applications figure 7. programmable instrumentation amplifier +5 v +2.5 v 2 8 3 2 6 5 7 9 4 10 11 8 1 1 7 4 + ? + ? + ? +5 v cat5113/5114/5115 dpp figure 8. programmable sq. wave oscillator (555) +5 v 0.01 f 0.01 f 0.003 f c 5 3 6 7 8 4 1 2 65 3 2 8 1 7 4 +5 v dpp 555 r 2 r 2 r 1 r 3 r 4 r 4 v 1 ( ? ) v 2 (+) v o a 3 a 1 = a 2 = a 3 = 1 / 4 lm6064 r 2 = r 3 = r 4 = 5 k r pot = 10 k r b r 2 r a r 1 pr pot (1 ? p)r pot r 3 figure 9. sensor auto referencing circuit +5 v ? 5 v icia 4 11 1 499 k 20 k icib 499 k 2 3 6 5 499 k 499 k 10 k 0.01 f osc ic3a + ? + ? sensor 2 8 1 7 7 4 +5 v +200 mv cat5111/5112 ic2 dpp + ? cs v corr v ref = 1 v v shift = 100 mv v out = 1 v 1 mv v sensor = 1 v 50 mv 1 / 4 74hc132
cat5115 http://onsemi.com 7 figure 10. programmable voltage regulator figure 11. programmable i to v convertor 0.1 f 1 f 6.8 f 11 k 100 k 1.23 v 2 8 1 7 4 5 3 6 +5 v por 2952 cat5113/5114/5115 fb sd gnd v out v o (reg) r 1 r 2 820 r 3 10 k v in (unreg) shutdown +2.5 v +5 v 2 7 3 3 5 4 6 6 + ? lt1097 +5 v 2 7 3 4 6 + ? 2 8 1 7 4 +5 v cat5113/5114 dpp pr (1 ? p)r 330 330 1 m 10 k i s a 1 a 2 v o control and memory +5 v +5 v +2.5 v +5 v ic3 cat5114/5113 clo ic1 393 ai ic4 2 3 + ? 1 2 8 1 7 4 +5 v osc ic2 74hc132 0.1 f + ? chi 6 5 5 6 3 + ? 7 +5 v r3 r2 r1 0.001 f 0.001 f 1 f 2 7 3 4 6 + ? 2 8 1 7 4 +5 v cat5113/5114 dpp +2.5 v v o 2.5 v o 5 v v ul v ll r 1 r 3 r 2 10 k v s 0 v s 2.5 v 10 k c 1 c 2 v o v s 10 k 100 k a 1 50 k figure 12. automatic gain control figure 13. programmable bandpass filter u/d inc cs figure 14. programmable current source/sink cat5111/5112 +5 v +5 v serial bus +2.5 v +2.5 v +5 v 2 7 7 5 6 3 11 1 + ? + ? r + ? 100 k r 1 100 k r 1 100 k r 1 100 k r 1 2.5 k a 2 i s a 1 = a 2 = lmc6064a v s
cat5115 http://onsemi.com 8 package dimensions pdip ? 8, 300 mils case 646aa ? 01 issue a e1 d a l eb b2 a1 a2 e eb c top view side view end view pin # 1 identification notes: (1) all dimensions are in millimeters. (2) complies with jedec ms-001. symbol min nom max a a1 a2 b b2 c d e e1 l 0.38 2.92 0.36 6.10 1.14 0.20 9.02 2.54 bsc 3.30 5.33 4.95 0.56 7.11 1.78 0.36 10.16 eb 7.87 10.92 e 7.62 8.25 2.92 3.80 3.30 0.46 6.35 1.52 0.25 9.27 7.87
cat5115 http://onsemi.com 9 package dimensions soic 8, 150 mils case 751bd ? 01 issue o e1 e a a1 h l c e b d pin # 1 identification top view side view end view notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec ms-012. symbol min nom max a a1 b c d e e1 e h 0o 8o 0.10 0.33 0.19 0.25 4.80 5.80 3.80 1.27 bsc 1.75 0.25 0.51 0.25 0.50 5.00 6.20 4.00 l 0.40 1.27 1.35
cat5115 http://onsemi.com 10 package dimensions tssop8, 4.4x3 case 948al ? 01 issue o e1 e a2 a1 e b d c a top view side view end view 1 l1 l notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec mo-153. symbol min nom max a a1 a2 b c d e e1 e l1 0o 8o l 0.05 0.80 0.19 0.09 0.50 2.90 6.30 4.30 0.65 bsc 1.00 ref 1.20 0.15 1.05 0.30 0.20 0.75 3.10 6.50 4.50 0.90 0.60 3.00 6.40 4.40
cat5115 http://onsemi.com 11 package dimensions msop 8, 3x3 case 846ad ? 01 issue o e1 e a2 a1 e b d c a top view side view end view l1 l2 l detail a detail a notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec mo-187. symbol min nom max a a1 a2 b c d e e1 e l 0o 6o l2 0.05 0.75 0.22 0.13 0.40 2.90 4.80 2.90 0.65 bsc 0.25 bsc 1.10 0.15 0.95 0.38 0.23 0.80 3.10 5.00 3.10 0.60 3.00 4.90 3.00 l1 0.95 ref 0.10 0.85
cat5115 http://onsemi.com 12 package dimensions tdfn8, 2x2.5 case 511aj ? 01 issue a pin#1 identification notes: (1) all dimensions are in millimeters. (2) complies with jedec mo-229. symbol ???? ???? ???? ???? e detail a d e2 a3 front view a side view detail a d2 a a1 pin#1 index area bottom view dap size 1.8 x 1.6 a1 l e b 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 2.50 e2 1.20 1.30 1.40 e 2.40 0.50 typ 2.60 l 0.20 0.30 0.40
cat5115 http://onsemi.com 13 table 8. ordering information orderable part numbers reset threshold voltage package ? pin lead finish cat5115li ? 10 ? g 10 pdip ? 8 nipdau cat5115li ? 50 ? g 50 cat5115li ? 00 ? g 100 cat5115vi ? 10 ? gt3 10 soic ? 8 nipdau cat5115vi ? 50 ? gt3 50 cat5115vi ? 00 ? gt3 100 cat5115yi ? 10 ? gt3 10 tssop ? 8 nipdau cat5115yi ? 50 ? gt3 50 cat5115yi ? 00 ? gt3 100 cat5115zi ? 10 ? gt3 10 msop ? 8 nipdau cat5115zi ? 50 ? gt3 50 cat5115zi ? 00 ? gt3 100 cat5115zd7i ? 10 ? t3 (note 10) 10 tdfn ? 8 2 x 2.5 mm matte ? tin cat5115zd7i ? 50 ? t3 (note 10) 50 cat5115zd7i ? 00 ? t3 (note 10) 100 10. contact factory for package availability.
cat5115 http://onsemi.com 14 example of ordering information (note 15) prefix device # suffix company id cat 5115 v product number 5115 i ? gt3 package i = industrial ( ? 40 c to +85 c) temperature range l: pdip v: soic y: tssop z: msop zd7: tdfn (note 14) g: nipdau blank: matte ? tin t: tape & reel 3: 3,000 units / reel tape & reel (note 16) (optional) ? 10 resistance ? 10: 10 k ? 50: 50 k ? 00: 100 k lead finish 11. all packages are rohs ? compliant (lead ? free, halogen ? free). 12. the standard lead finish is nipdau. 13. for additional package and temperature options, please contact your nearest on semiconductor sales office. 14. tdfn is not available in nipdau ( ? g) version. 15. the device used in the above example is a cat5115vi ? 10 ? gt3 (soic, industrial temperature, 10 k , nipdau, tape & reel, 3,000/reel). 16. for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and ree l packaging specifications brochure, brd8011/d. on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y 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 wi thout 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 application s 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 sit uation 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 of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly 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. cat5115/d dpp is a trademark of semiconductor components industries, llc. publication ordering information 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 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 : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative

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