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general description the max5492 precision resistor-divider consists of two accurately matched resistors with access to the ends and center of the divider. this device offers excellent resistance matching of 0.035% (a grade), 0.05% (b grade), and 0.1% (c grade). the max5492 includes an extremely low-resistance-ratio temperature drift of 1.5ppm/? (typ) over -55? to +125?, and has an end- to-end resistance of 10k ? . resistance ratios from 1:1 to 10:1 are available. five standard ratios are available (see table 1), and custom ratios are also available upon request. to enhance device and system robustness, the max5492 features ?kv human body model electrostat- ic discharge (esd) protection to ensure against real- world esd events. the max5492 is ideal for precision gain-setting applications where tight resistance matching and low temperature drift are necessary. the max5492 is available in a space-saving 5-pin sot23 package, and is guaranteed over the military -55? to +125? temperature range. applications industrial process control instrumentation precision gain setting medical equipment automatic test equipment base stations features ? resistance ratios from 1:1 to 10:1 ? custom ratios available upon request ? tight initial ratio accuracy 0.035% (max5492a) 0.05% (max5492b) 0.1% (max5492c) ? low 1.5ppm/ c (typ) resistor-ratio-drift (1.1:1) ? up to 40v operating voltage across sum of r1 and r2 ? tiny 5-pin sot23 package max5492 10k ? precision-matched resistor-divider in sot23 ________________________________________________________________ maxim integrated products 1 p2 1 5 sh 4 p3 p1 sot23 top view 3 sl 2 max5492 pin configuration ordering information* p1 p2 sl p3 sh max5492 r 2 r 1 block diagram 19-3695; rev 0; 5/05 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. * see the how to order section for more details. pa r t t em p r a n g e pin - pa c k a g e r a t io a c c u r a c y ( % ) m ax 5492 _ a _ _ _ _ _ - t- 55 c to + 125c 5 s o t23- 5 0.035 m ax 5492 _ b _ _ _ _ _ - t- 55 c to + 125c 5 s o t23- 5 0.05 m ax 5492 _ c _ _ _ _ _ - t- 55 c to + 125c 5 s o t23- 5 0.1
max5492 10k ? precision-matched resistor-divider in sot23 2 _______________________________________________________________________________________ absolute maximum ratings dc electrical characteristics (t a = -55? to +125?, unless otherwise noted. typical values are at t a = +25?.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. voltage between p1 and p2 ................................................?0v continuous current into any pin......................................?.2ma continuous power dissipation (t a = +70?) 5-pin sot23 (derate 7.1mw/? above +70?).........571.4mw 5-pin sot23 ( j-a ) .....................................................141?/w operating temperature range .........................-55? to +125? junction temperature ......................................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? parameter symbol conditions min typ max units max5492_a, t a = +25? ?.035 max5492_b, t a = +25? ?.05 initial resistor-ratio error (note 2) max5492_c, t a = +25? ?.1 % ratio 1.1:1 1.5 ratio 1.5:1 3 resistance-ratio temperature coefficient (note 3) ratio 3.2:1 ratio 10:1 5.5 ppm/? absolute temperature coefficient of resistance tcr (note 4) 35 ppm/? voltage coefficient of resistance vcr (note 5) 0.1 ppm/v end-to-end resistance (r 1 + r 2 ) 9.25 10 10.75 k ? continuous working voltage between p1 and p2 v p1-p2 -40 +40 v p1, p2, p3, sl, sh capacitance 2pf resistance-ratio stability 2000 hours at +70 c 0.03 % -3db bandwidth f 3db 1.1:1 ratio (note 6) 30 mhz thermal noise (note 7) 45 ? rms current noise (note 8) <-30 db maximum power rating 160 mw note 1: the max5492 is 100% production tested at t a = +25?. specifications over -55? to +125? are guaranteed by design and characterization. note 2: testing conditions: t a = +25?, v p1-p2 = 10v and 40v. note 3: resistance-ratio temperature coefficient is defined and is guaranteed by design, not production t ested. note 5: resistance-ratio voltage coefficient is defined as and is guaranteed by design, not production tes ted. ? ? r r r r t 1 2 1 2 ? ? ? ? ? ? ? ? r r r r v 1 2 1 2 ? ? ? ? ? ? ? ? rr rr t 12 12 + () + () note 4: absolute tcr is defined as and is tested at 10v and 40v.
note 6: calculate bandwidth by using where c is c p3 and r = . note 7: calculated according to noise. note 8: in accordance with the military specification mil-std-202g method 308. max5492 10k ? precision-matched resistor-divider in sot23 _______________________________________________________________________________________ 3 normalized resistance-ratio drift vs. temperature max5492 toc01 temperature ( c) ratio drift (ppm) 95 65 -25 5 35 -150 -100 -50 0 50 100 150 200 -200 -55 125 v p1-p2 = 10v ratio = 1.1:1 normalized resistance-ratio drift vs. temperature max5492 toc02 temperature ( c) ratio drift (ppm) 95 65 -25 5 35 -400 -200 0 200 400 600 -600 -55 125 v p1-p2 = 10v ratio = 3.2:1 normalized resistance-ratio drift vs. temperature max5492 toc03 temperature ( c) ratio drift (ppm) 95 65 -25 5 35 -200 -100 100 -300 0 200 300 400 500 -400 -55 125 v p1-p2 = 10v ratio = 10:1 resistance-ratio accuracy vs. voltage max5492 toc04 voltage (v) ratio accuracy (%) 35 30 5 10 15 20 25 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 -0.04 040 ratio = 1.1:1 typical operating characteristics (v p1-p3 = 10v, t a = +25?, unless otherwise noted.) 1 2 rc rr rr 12 12 + kt c dc electrical characteristics (continued) (t a = -55? to +125?, unless otherwise noted. typical values are at t a = +25?.) (note 1)
max5492 10k ? precision-matched resistor-divider in sot23 4 _______________________________________________________________________________________ frequency response max5492 toc05 frequency (khz) response (db) 10,000 1000 110100 -15 -12 -9 -6 -3 0 3 6 -18 0.1 100,000 ratio = 1.1:1 c l = 10pf spectral noise density max5492 toc06 frequency (hz) noise (nv/ hz) 100 10 1000 1 100 10 v p1-p2 = 10v v p1-p2 = 2v ratio = 1.1:1 total harmonic distortion plus noise response max5492 toc07 frequency (hz) thd+n (%) 10k 1k 100 0.001 0.01 0.1 1 10 100 0.0001 10 100k ratio = 1.1:1 20hz to 20khz bandpass typical operating characteristics (continued) (v p1-p3 = 10v, t a = +25?, unless otherwise noted.) pin description pin name function 1 p1 r1 connection terminal 2sl sense connection for low side of resistor string. leave floating or connect in a kelvin connection configuration. 3 p2 r2 connection terminal 4 p3 set-point connection terminal 5sh sense connection for high side of resistor string. leave floating or connect in a kelvin connection configuration. detailed description the max5492 consists of two precision, low-ratio-drift resistors with an end-to-end resistance of 10k ? (r 1 + r 2 ). (see figure 1.) p3 is the set point of the divider. the maximum working voltage of the max5492 is 40v. this device offers a wide range of resistance ratios (r 1 /r 2 ) from 1:1 to 10:1 and is ideally suited for preci- sion operational-amplifier gain/attenuation control. the max5492 features a ?kv esd protection that enhances system robustness. a maximum initial ratio accuracy of 0.035% and a low ratio drift enhance sys- tem accuracy. applications information kelvin sensing kelvin sensing can improve accuracy in sensitive appli- cations. apply a voltage or current at p1 and use sense high (sh) and sense low (sl) to monitor the voltage at the upper and lower ends of the resistor string.
max5492 10k ? precision-matched resistor-divider in sot23 _______________________________________________________________________________________ 5 self-heating and error applying a voltage across terminals p1 and p2 causes the device to heat up due to power dissipation. in high- voltage applications, consider the error in resistance- ratio temperature coefficient caused by self-heating. the worst-case self-heating occurs when the operating voltage attains its maximum value. approximate the result of power dissipation under this condition as: the thermal resistance from junction to ambient, j-a , for a 5-pin sot23 package is 141?/w. calculate the resulting temperature rise as: ? t = 160mw x 141?/w = 22.5? if the ratio temperature coefficient is 1.5ppm/? (typ), the total error introduced by self-heating is: 22.5 c x 1.5ppm/ c = 33.75ppm p v r v k mw diss max = () = () = 22 40 10 160 ? in p1 p2 p3 max5492 r 2 r 1 out figure 3. buffered attenuator max5492 r 2 r 1 p1 p2 p3 in out figure 1. inverting amplifier configuration p1 p2 p3 max5492 r 2 r 1 out in figure 4. attenuator with buffer max5492 r 2 r 1 p1 p2 p3 in out figure 2. noninverting amplifier configuration a v v r r out in ==? 1 2 a v v r r out in ==+ 1 1 2 a v v r rr out in == + 2 12 a v v r rr out in == + 2 12 typical applications
max5492 10k ? precision-matched resistor-divider in sot23 6 _______________________________________________________________________________________ example part numbers prefix max 5492 v a 10000 -t root part number max5492 = 10k ? end-to-end ratio range l through w. resistor ratio must fall in the appropriate ratio range. (see table 2.) ratio accuracy a = 0.035% (max); b = 0.05% (max); c = 0.1% (max) resistance ratio five-number ratio designator. ratios available from 1:1 to 10:1. format examples: 01000 = 1:1 02500 = 2.5:1 07538 = 7.538:1 10000 = 10:1 tape and reel how to order part number resistor-ratio range resistor-ratio accuracy (% max) resistor ratio max5492pa02500-t 2.000 to 2.999 0.035 2.5:1 max5492rb03000-t 3.000 to 3.999 0.05 3:1 max5492ua07538-t 7.538 to 10.0 0.035 7.538:1
max5492 10k ? precision-matched resistor-divider in sot23 _______________________________________________________________________________________ 7 * standard ratios are available for ordering in any quantity. nonstandard ratios are also available for values from 1:1 to 10:1. a minimum order quantity of 10,000 units is required for nonstandard ratios. contact factory for more information. table 2. ratio ranges letter suffix resistor-ratio range r 1.0 to 1.399 p 1.4 to 1.999 n 2.0 to 2.999 m 3.0 to 7.537 l 7.538 to 10 table 1. standard ratios* part number resistor ratio resistor-ratio suffix resistor-ratio accuracy (% max) top mark max5492ra01100-t 1.1:1 01100 0.035 aera max5492rb01100-t 1.1:1 01100 0.05 aerc max5492rc01100-t 1.1:1 01100 0.1 aere max5492pa01500-t 1.5:1 01500 0.035 aequ max5492pb01500-t 1.5:1 01500 0.05 aeqw max5492pc01500-t 1.5:1 01500 0.1 aeqy max5492pa03200-t 3.2:1 03200 0.035 aeve max5492pb03200-t 3.2:1 03200 0.05 aevf max5492pc03200-t 3.2:1 03200 0.1 aevg max5492la07538-t 7.538:1 07538 0.035 aeqb max5492lb07538-t 7.538:1 07538 0.05 aeqd max5492lc07538-t 7.538:1 07538 0.1 aeqf max5492la10000-t 10:1 10000 0.035 aeqc max5492lb10000-t 10:1 10000 0.05 aeqe max5492lc10000-t 10:1 10000 0.1 aeqg chip information transistor count: 0 process: bicmos
max5492 10k ? precision-matched resistor-divider in sot23 maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2005 maxim integrated products printed usa is a registered trademark of maxim integrated products, inc. package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .) sot-23 5l .eps e 1 1 21-0057 package outline, sot-23, 5l
e nglish ? ???? ? ??? ? ??? what's ne w p roducts solutions de sign ap p note s sup p ort buy comp any me mbe rs m axim > p roduc ts > digital p otentiometers max5492 10k precision-matched resistor-divider in sot23 quickview technical documents ordering info more information all ordering information notes: other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales . 1. didn't find what you need? ask our applications engineers. expert assistance in finding parts, usually within one business day. 2. part number suffixes: t or t&r = tape and reel; + = rohs/lead-free; # = rohs/lead-exempt. more: see full data sheet or part naming c onventions . 3. * some packages have variations, listed on the drawing. "pkgc ode/variation" tells which variation the product uses. 4. devices: 1-51 of 51 m ax5492 fre e sam ple buy pack age : type pins footprint drawing code/var * te m p rohs/le ad-fre e ? m ate rials analys is max5492lb10000+ -55c to +125c rohs/lead-free: see data sheet max5492la07538+ -55c to +125c rohs/lead-free: see data sheet max5492la10000+ -55c to +125c rohs/lead-free: see data sheet max5492lb07538+ -55c to +125c rohs/lead-free: see data sheet max5492pc 03200-t -55c to +125c rohs/lead-free: see data sheet max5492pb03200-t -55c to +125c rohs/lead-free: see data sheet max5492lc 07538+ -55c to +125c rohs/lead-free: see data sheet max5492pa03200-t -55c to +125c rohs/lead-free: see data sheet max5492pc 01500+ -55c to +125c rohs/lead-free: see data sheet max5492rc 01100+ -55c to +125c rohs/lead-free: see data sheet max5492pa01500+ -55c to +125c rohs/lead-free: see data sheet max5492pb01500+ -55c to +125c rohs/lead-free: see data sheet max5492ra01100+ -55c to +125c rohs/lead-free: see data sheet
max5492rb01100+ -55c to +125c rohs/lead-free: see data sheet max5492pb01500 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492pc 01500 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492ra01100 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis max5492rb01100 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492rc 01100 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lc 10000+ sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5+1 * -55c to +125c rohs/lead-free: lead free materials analysis max5492pa01500 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis max5492lc 10000 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492la07538 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis max5492la10000 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis max5492lb07538 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lb10000 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lc 07538 sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lc 07538-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492pb01500+t -55c to +125c rohs/lead-free: see data sheet max5492lb10000-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492pc 01500+t -55c to +125c rohs/lead-free: see data sheet max5492pa01500-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis max5492ra01100+t -55c to +125c rohs/lead-free: see data sheet max5492lb07538-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492rb01100+t -55c to +125c rohs/lead-free: see data sheet max5492la10000-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis
max5492rc 01100+t -55c to +125c rohs/lead-free: see data sheet max5492pa01500+t -55c to +125c rohs/lead-free: see data sheet max5492lc 10000-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lc 10000+t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5+1 * -55c to +125c rohs/lead-free: lead free materials analysis max5492la07538+t -55c to +125c rohs/lead-free: see data sheet max5492rc 01100-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492la10000+t -55c to +125c rohs/lead-free: see data sheet max5492rb01100-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lb07538+t -55c to +125c rohs/lead-free: see data sheet max5492ra01100-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis max5492lb10000+t -55c to +125c rohs/lead-free: see data sheet max5492pc 01500-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492lc 07538+t -55c to +125c rohs/lead-free: see data sheet max5492pb01500-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: see data sheet materials analysis max5492la07538-t sot-23;5 pin;9 mm dwg: 21-0057f (pdf) use pkgcode/variation: u5-1 * -55c to +125c rohs/lead-free: no materials analysis didn't find what you need? next day product selection assistance from applications engineers parametric search applications help quickview technical documents ordering info more information des c ription key features a pplic ations /u s es key spec ific ations diagram data sheet a pplic ation n otes des ign guides e ngineering journals reliability reports software/m odels e valuation kits p ric e and a vailability samples buy o nline p ac kage i nformation lead-free i nformation related p roduc ts n otes and c omments e valuation kits doc ument ref.: 1 9 -3 6 9 5 ; rev 0 ; 2 0 0 5 -0 5 -3 1 t his page las t modified: 2 0 0 5 -0 6 -0 7 c ontac t us: send us an email c opyright 2 0 0 7 by m axim i ntegrated p roduc ts , dallas semic onduc tor ? legal n otic es ? p rivac y p olic y

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