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general description the max6035 is a high-voltage, precision micropower voltage reference. this three-terminal device is available with output voltage options of 2.5v, 3.0v, and 5.0v. it is an excellent upgrade for industry-standard devices such as the ref02 and ref43. the max6035 offers 14x lower power than the ref02 and 5x lower power than the ref43, as well as a reduced package size from an 8-pin so to a 3-pin sot23. the max6035 features a proprietary temperature coefficient curvature-correction circuit and laser-trimmed, thin-film resistors that result in a very low temperature coefficient of 25ppm/? (max) and an initial accuracy of ?.2% (max). the max6035 typically draws only 73? of supply cur- rent and can source 10ma or sink 2ma of load current. unlike conventional shunt-mode (two-terminal) refer- ences that waste supply current and require an external resistor, this device offers a supply current that is virtu- ally independent of the supply voltage and does not require an external resistor. additionally, this internally compensated device does not require an external com- pensation capacitor, but is also stable with capacitive loads up to 5?. eliminating the external compensation capacitor saves valuable board area in space-critical applications. the supply independent, ultra-low supply current makes this device ideal for battery-operated, high-performance systems. the max6035 is available in a 3-pin sot23 package and is specified for operation from -40? to +125?. applications features wide supply voltage range: up to 33v 25ppm/? (max) temperature coefficient (-40? to +85?) ?.2% (max) initial accuracy 95? (max) quiescent supply current 10ma source current, 2ma sink current no output capacitor required stable with capacitive loads up to 5? max6035 high-supply-voltage, precision voltage reference in sot23 ________________________________________________________________ maxim integrated products 1 ordering information 19-2606; rev 3; 11/06 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. part temp range pin - pa c k a g e top mark max6035aaur25-t -40 c to +125 c 3 sot23-3 fzmw max6035baur25-t -40 c to +125 c 3 sot23-3 fzmx MAX6035ESA25 -40 c to +85 c 8 so max6035aaur30-t -40 c to +125 c 3 sot23-3 fzmy max6035baur30-t -40 c to +125 c 3 sot23-3 fzmz max6035aaur50-t -40 c to +125 c 3 sot23-3 fzna max6035baur50-t -40 c to +125 c 3 sot23-3 fznb part maximum tempco (ppm/ c) ( -40 c to +85 c ) maximum initial accuracy (%) output voltage (v) max6035aaur25 25 0.20 2.5 max6035baur25 65 0.50 2.5 MAX6035ESA25 40 0.20 2.5 max6035aaur30 25 0.20 3.0 max6035baur30 65 0.50 3.0 max6035aaur50 25 0.20 5.0 max6035baur50 65 0.50 5.0 selector guide out 1 3 gnd in max6035 sot23 top view 2 out n.c. gnd 1 2 8 7 n.c. n.c. in n.c. n.c. so 3 4 6 5 max6035 pin configurations max6035 0.1 f* *capacitor is optional. reference out out in gnd +supply input (see selector guide ) typical operating circuit 4ma to 20ma industrial control loops li+ battery chargers 12-bit a/d and d/a converters digital multimeters portable data-acquisition systems low-power test equipment note: the 3-pin sot23 package code is u3-1. the 8-pin so package code is s8-2.
max6035 high-supply-voltage, precision voltage reference in sot23 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics max6035_aur25 and MAX6035ESA25 (2.5v) (v in = 5v, i out = 0, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (note 2) 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. (voltages referenced to gnd) in ............................................................................-0.3v to +36v out .............................................................-0.3v to (v in + 0.3v) out short-circuit duration to gnd or in (note 1).....continuous current into any pin..........................................................20ma continuous power dissipation 3-pin sot23 (derate 4.0mw/ c above +70 c)............320mw 8-pin so (derate 5.9mw/ c above +70 c)...............470.6mw operating temperature range: max6035esa ..................................................-40 c to +85 c max6035_aur ..............................................-40 c to +125 c storage temperature range .............................-65 c to +150 c junction temperature ......................................................+150 c lead temperature (soldering, 10s) .................................+300 c parameter symbol conditions min typ max units max6035aaur, max6035esa (0.2%) 2.4950 2.5000 2.5050 output voltage v out t a = +25 c max6035baur 2.4875 2.5000 2.5125 v max6035aaur 20 t a = 0 c to +70 c max6035baur 50 max6035aaur 25 max6035esa 40 t a = -40 c to +85 c max6035baur 65 max6035aaur 30 output voltage temperature coefficient (notes 3 and 6) tcv out t a = -40 c to +125 c max6035baur 75 ppm/ c t a = +25 c415 line regulation (note 4) ? v out / ? v in (v out + 2v) v in 33v t a = t min to t max 20 v/v sourcing: 0 i out 10ma 25 70 t a = +25 c, max6035_aur sinking: -2ma i out 0 45 180 sourcing: 0 i out 10ma 85 t a = t min to t max , max6035_aur sinking: -2ma i out 0 225 sourcing: 0 i out 10ma 105 175 t a = +25 c, max6035esa sinking: -2ma i out 0 205 375 sourcing: 0 i out 10ma 350 load regulation (note 4) ? v out / ? i out t a = t min to t max , max6035esa sinking: -2ma i out 0 500 v/ma short to gnd 27 out short-circuit current i sc short to in -4 ma note 1: continuous power dissipation should also be observed.
max6035 high-supply-voltage, precision voltage reference in sot23 _______________________________________________________________________________________ 3 parameter symbol conditions min typ max units i out = 10a 1.9 dropout voltage (note 7) v in - v out i out = 10ma 2.25 v thermal hysteresis (note 5) ? v ou t /cycl e 135 ppm long-term stability ? v out /time 1000hr at +25 c 110 ppm/ 1000hr dynamic characteristics f = 0.1hz to 10hz 21 v p-p output noise voltage e n f = 10hz to 1khz 20 v rms ripple rejection ? v out / ? v in v in = 5v 100mv, f = 120hz 86 db c out = 50pf 35 turn-on settling time t r to v out = 0.1% of final value c out = 1f 240 s capacitive-load stability (note 6) c out 05f input characteristics supply voltage range v in infer r ed fr om l i ne r eg ul ati on and d r op out vol tag e 4.4 33 v quiescent supply current i in 73 95 a change in supply current ? i in / ? v in 4.4v v in 33v 0.4 0.7 a/v electrical characteristics max6035_aur25 and MAX6035ESA25 (2.5v) (continued) (v in = 5v, i out = 0, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (note 2) parameter symbol conditions min typ max units max6035a (0.2%) 2.9940 3.0000 3.0060 output voltage v out t a = +25 c max6035b (0.5%) 2.9850 3.0000 3.0150 v max6035a 20 t a = 0 c to +70 c max6035b 50 max6035a 25 t a = -40 c to +85 c max6035b 65 max6035a 30 output voltage temperature coefficient (note 3) tcv out t a = -40 c to +125 c max6035b 75 ppm/ c t a = +25 c 4.5 15 ( v ou t + 1.75v ) v i n 33v t a = 0 c to +125 c 24 line regulation (note 4) ? v out / ? v in (v out + 2v) v in 33v t a = -40 c to +125 c 24 v/v sourcing: 0 i out 10ma 30 81 t a = +25 c sinking: -2ma i out 0ma 54 170 sourcing: 0 i out 10ma 96 load regulation (note 4) ? v out / ? i out t a = -40 c to +125 c sinking: -2ma i out 0ma 230 v/ma electrical characteristics max6035_aur30 (3.0v) (v in = 5v, i out = 0, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (note 2)
max6035 high-supply-voltage, precision voltage reference in sot23 4 _______________________________________________________________________________________ parameter symbol conditions min typ max units short to gnd 27 out short-circuit current i sc short to in -4 ma t a = 0 c to +125 ci out = 10a 1.75 i out = 10a 1.9 dropout voltage (note 7) v in - v out t a = -40 c to +125 c i out = 10ma 2.25 v thermal hysteresis (note 5) ? v ou t /cycl e 135 ppm long-term stability ? v out /time 1000hr at +25 c 120 ppm/ 1000hr dynamic characteristics f = 0.1hz to 10hz 25 v p-p output noise voltage e n f = 10hz to 1khz 25 v rms ripple rejection ? v out / ? v in v in = 5v 100mv, f = 120hz 80 db c out = 50pf 40 turn-on settling time t r v out = 0.1% of final value c out = 1f 250 s capacitive-load stability (note 6) c out 05f input characteristics t a = 0 c to +125 c, inferred from line regulation and dropout voltage 4.75 33 supply voltage range v in t a = -40 c to +125 c, inferred from line regulation and dropout voltage 4.9 33 v quiescent current supply i in 73 95 a change in supply current ? i in / ? v in 4.9v v in 33v 0.4 0.7 a/v electrical characteristics max6035_aur30 (3.0v) (continued) (v in = 5v, i out = 0, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (note 2) electrical characteristics max6035_aur50 (5.0v) (v in = 5v, i out = 0, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (note 2) parameter symbol conditions min typ max units max6035a (0.2%) 4.9900 5.0000 5.0100 output voltage v out t a = +25 c max6035b (0.5%) 4.9750 5.0000 5.0250 v max6035a 20 t a = 0 c to +70 c max6035b 50 max6035a 25 t a = -40 c to +85 c max6035b 65 max6035a 30 output voltage temperature coefficient (note 3) tcv out t a = -40 c to +125 c max6035b 75 ppm/ c t a = + 25 c 7.5 25 line regulation (note 4) ? v out / ? v in (v out + 2v) v out 33v t a = - 40 c to + 125 c 840 v/v
max6035 high-supply-voltage, precision voltage reference in sot23 _______________________________________________________________________________________ 5 electrical characteristics max6035_aur50 (5.0v) (continued) (v in = 5v, i out = 0, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (note 2) parameter symbol conditions min typ max units sourcing: 0 i out 10ma 50 135 t a = +25 c sinking: -2ma i out 0ma 90 215 sourcing: 0 i out 10ma 160 load regulation (note 4) ? v out / ? i out t a = -40 c to +125 c sinking: -2ma i out 0ma 300 v/ma shorted to gnd 27 out short-circuit current i sc shorted to in -4 ma i out = 10a 1.9 dropout voltage (note 7) v in - v out i out = 10ma 2.25 v thermal hysteresis (note 5) ? v ou t /cycl e 135 ppm long-term stability ? v out /time 1000hr at +25 c 160 ppm/ 1000hr dynamic characteristics f = 0.1hz to 10hz 68 v p-p output noise voltage e n f = 10hz to 1khz 48 v rms ripple rejection ? v out / ? v in v in = 15v 100mv, f = 120hz 72 db c out = 50pf 140 turn-on settling time t r to v out = 0.1% of final value c out = 1f 300 s capacitive-load stability (note 6) c out 05f input characteristics supply voltage range v in inferred by line regulation and dropout voltage 6.9 33 v quiescent current supply i in 80 100 a change in supply current ? i in / ? v in 6.9v v in 33v 0.4 0.7 a/v note 2: all devices are 100% production tested at t a = +25 c and are guaranteed by design for t a = t min to t max , as specified. note 3: temperature coefficient is measured by the box method, i.e., the maximum ? v out is divided by the maximum ? t. note 4: line and load regulation are measured with pulses and do not include output voltage fluctuation due to die-temperature changes. note 5: thermal hysteresis is defined as the change in the output voltage at t a = +25 c before and after cycling the device from t max to t min . note 6: guaranteed by design. note 7: although the source current is guaranteed to be 10ma, exercise caution to ensure that the package s absolute power dissi- pation rating is not exceeded.
max6035 high-supply-voltage, precision voltage reference in sot23 6 _______________________________________________________________________________________ typical operating characteristics (v in = 5v for max6035aaur25/max6035aaur30, v in = 15v for max6035aaur50, i out = 0, t a = +25 c, unless otherwise noted.) max6035 load regulation (v out = 5v) max6035 toc09 load current (ma) output voltage (v) 8 6 4 2 0 4.995 4.996 4.997 4.998 4.999 5.000 5.001 4.994 -2 10 t a = +25 c t a = -40 c t a = +85 c t a = +125 c max6035 load regulation (v out = 3v) max6035 toc08 load current (ma) output voltage (v) 8 6 4 2 0 2.9960 2.9965 2.9970 2.9975 2.9980 2.9985 2.9990 2.9995 3.0000 3.0005 2.9955 -2 10 t a = +25 c t a = -40 c t a = +85 c t a = +125 c max6035 load regulation (v out = 2.5v) max6035 toc07 load current (ma) output voltage (v) 8 6 4 2 0 2.4970 2.4975 2.4980 2.4985 2.4990 2.4995 2.5000 2.5005 2.5010 2.4965 -2 10 t a = -40 c t a = +25 c t a = +85 c t a = +125 c max6035 line regulation (v out = 5v) max6035 toc06 input voltage (v) output voltage (v) 30 26 22 18 14 10 4.9975 4.9980 4.9985 4.9990 4.9995 4.9970 634 t a = +125 c t a = +85 c t a = +25 c t a = -40 c max6035 line regulation (v out = 3v) max6035 toc05 input voltage (v) output voltage (v) 28 22 16 10 2.9965 2.9970 2.9975 2.9980 2.9985 2.9990 2.9995 3.0000 3.0005 2.9960 434 t a = +125 c t a = +85 c t a = +25 c t a = -40 c max6035 line regulation (v out = 2.5v) max6035 toc04 input voltage (v) output voltage (v) 28 22 10 16 2.4975 2.4980 2.4985 2.4990 2.4995 2.5000 2.5005 2.5010 2.4970 434 t a = +85 c t a = -40 c t a = +125 c t a = +25 c max6035aaur50 output voltage temperature drift max6035 toc03 temperature ( c) output voltage (v) 110 85 60 35 10 -15 5.000 5.001 5.002 5.003 5.004 5.005 4.999 4.998 4.997 -40 three typical parts max6035aaur30 output voltage temperature drift max6035 toc02 temperature ( c) output voltage (v) 110 85 60 35 10 -15 2.997 2.999 3.001 3.003 2.995 2.993 -40 three typical parts max6035aaur25 output voltage temperature drift max6035 toc01 temperature ( c) output voltage (v) 110 85 60 35 10 -15 2.5010 2.5005 2.5000 2.4995 2.5015 2.5020 2.5025 2.5030 2.5035 2.4990 -40 three typical parts
max6035 high-supply-voltage, precision voltage reference in sot23 _______________________________________________________________________________________ 7 max6035 supply current vs. input voltage (v out = 3v) max6035 toc14 input voltage (v) supply current ( a) 28 22 16 10 75 80 85 90 95 70 434 t a = +125 c t a = -40 c t a = +25 c max6035 toc15 input voltage (v) supply current ( a) 30 24 18 12 75 80 85 90 95 70 6 max6035 supply current vs. input voltage (v out = 5v) t a = -40 c t a = +25 c t a = +125 c 0.01 0.1 1 10 100 1000 max6035 output impedance vs. frequency (v out = 2.5v) max6035 toc16 frequency (khz) output impedance ( ? ) 400 0 100 200 300 0.001 0.1 10 1000 max6035 output impedance vs. frequency (v out = 3v) max6035 toc17 frequency (khz) output impedance ( ? ) 400 0 100 200 300 0.01 0.1 1 10 100 1000 max6035 output impedance vs. frequency (v out = 5v) max6035 toc18 frequency (khz) output impedance ( ? ) 300 0 50 150 100 250 200 max6035 supply current vs. input voltage (v out = 2.5v) max6035 toc13 input voltage (v) supply current ( a) 28 22 16 10 70 75 80 85 90 95 65 434 t a = +125 c t a = -40 c t a = +25 c 0.001 0.1 10 1000 max6035 power-supply rejection ratio vs. frequency (v out = 5v) max6035 toc12 frequency (khz) psrr (db) 0 -120 -100 -80 -60 -40 -20 0.001 0.1 10 1000 max6035 power-supply rejection ratio vs. frequency (v out = 3v) max6035 toc11 frequency (khz) psrr (db) 0 -120 -100 -80 -60 -40 -20 0.001 0.1 10 1000 max6035 power-supply rejection ratio vs. frequency (v out = 2.5v) max6035 toc10 frequency (khz) psrr (db) 0 -120 -100 -80 -60 -40 -20 typical operating characteristics (continued) (v in = 5v for max6035aaur25/max6035aaur30, v in = 15v for max6035aaur50, i out = 0, t a = +25 c, unless otherwise noted.)
max6035 high-supply-voltage, precision voltage reference in sot23 8 _______________________________________________________________________________________ max6035 toc19 1s/div 10 v/div max6035 0.1hz to 10hz output noise (v out = 2.5v) max6035 toc20 1s/div 10 v/div max6035 0.1hz to 10hz output noise (v out = 3v) max6035 toc21 1s/div 20 v/div max6035 0.1hz to 10hz output noise (v out = 5v) max6035 toc22 100ms/div 50 v/div max6035 10hz to 1khz output noise (v out = 2.5v) max6035 toc23 100ms/div 50 v/div max6035 10hz to 1khz output noise (v out = 3v) max6035 toc24 100ms/div 100 v/div max6035 10hz to 1khz output noise (v out = 5v) max6035 toc25 10 s/div 0v 0v v out 1v/div v in 5v/div max6035 turn-on transient (v out = 2.5v) c l = 50pf max6035 toc26 10 s/div v out 1v/div v in 5v/div max6035 turn-on transient (v out = 3v) c l = 50pf 0v 0v max6035 toc27 40 s/div v out 2v/div v in 10v/div max6035 turn-on transient (v out = 5v) c l = 50pf typical operating characteristics (continued) (v in = 5v for max6035aaur25/max6035aaur30, v in = 15v for max6035aaur50, i out = 0, t a = +25 c, unless otherwise noted.)
max6035 high-supply-voltage, precision voltage reference in sot23 _______________________________________________________________________________________ 9 max6035 toc28 40 s/div v l 10v/div v out ac-coupled 100mv/div max6035 load transient (v out = 2.5v) (i out = 250 a, c l = 0, r l = 10k ? ) (figure 1) max6035 toc29 20 s/div v l 10v/div v out ac-coupled 200mv/div max6035 load transient (v out = 3v) (i out = 250 a, c l = 0, r l = 12k ? ) (figure 1) max6035 toc30 20 s/div v l 10v/div v out ac-coupled 100mv/div max6035 load transient (v out = 5v) (i out = 250 a, c l = 0, r l = 20k ? ) (figure 1) max6035 toc31 100 s/div v l 5v/div v out ac-coupled 20mv/div max6035 load transient (v out = 2.5v) (i out = 250 a, c l = 1 f, r l = 10k ? ) (figure 1) max6035 toc32 100 s/div v l 10v/div v out ac-coupled 20mv/div max6035 load transient (v out = 3v) (i out = 250 a, c l = 1 f, r l = 12k ? ) (figure 1) max6035 toc33 100 s/div v l 10v/div v out ac-coupled 20mv/div max6035 load transient (v out = 5v) (i out = 250 a, c l = 1 f, r l = 20k ? ) (figure 1) max6035 toc34 10 s/div v l 5v/div v out ac-coupled 500mv/div max6035 load transient (v out = 2.5v) (i out = 2ma, c l = 0, r l = 1.25k ? ) (figure 1) max6035 toc35 40 s/div v l 5v/div v out ac-coupled 500mv/div max6035 load transient (v out = 3v) (i out = 2ma, c l = 0, r l = 1.5k ? ) (figure 1) max6035 toc36 20 s/div v l 10v/div v out ac-coupled 500mv/div max6035 load transient (v out = 5v) (i out = 2ma, c l = 0, r l = 2.5k ? ) (figure 1) typical operating characteristics (continued) (v in = 5v for max6035aaur25/max6035aaur30, v in = 15v for max6035aaur50, i out = 0, t a = +25 c, unless otherwise noted.)
max6035 high-supply-voltage, precision voltage reference in sot23 10 ______________________________________________________________________________________ max6035 toc37 40 s/div v l 5v/div v out ac-coupled 100mv/div max6035 load transient (v out = 2.5v) (i out = 2ma, c l = 1 f, r l = 1.25k ? ) (figure 1) max6035 toc38 100 s/div v l 10v/div v out ac-coupled 100mv/div max6035 load transient (v out = 3v) (i out = 2ma, c l = 1 f, r l = 1.5k ? ) (figure 1) max6035 toc39 200 s/div v l 10v/div v out ac-coupled 20mv/div max6035 load transient (v out = 5v) (i out = 2ma, c l = 1 f, r l = 2.5k ? ) (figure 1) max6035 toc40 20 s/div v l 5v/div v out ac-coupled 500mv/div max6035 load transient (v out = 2.5v) (i out = 0 to 10ma, c l = 0, r l = 250 ? ) (figure 2) max6035 toc41 20 s/div v l 5v/div v out ac-coupled 500mv/div max6035 load transient (v out = 3v) (i out = 0 to 10ma, c l = 0, r l = 300 ? ) (figure 2) max6035 toc42 200 s/div v l 5v/div v out ac-coupled 20mv/div max6035 load transient (v out = 5v) (i out = 0 to 10ma, c l = 0, r l = 500 ? ) (figure 2) typical operating characteristics (continued) (v in = 5v for max6035aaur25/max6035aaur30, v in = 15v for max6035aaur50, i out = 0, t a = +25 c, unless otherwise noted.)
max6035 high-supply-voltage, precision voltage reference in sot23 ______________________________________________________________________________________ 11 max6035 toc43 100 s/div v l 5v/div v out ac-coupled 100mv/div max6035 load transient (v out = 2.5v) (i out = 0 to 10ma, c l = 1 f, r l = 250 ? ) (figure 2) max6035 toc44 100 s/div v l 5v/div v out ac-coupled 100mv/div max6035 load transient (v out = 3v) (i out = 0 to 10ma, c l = 1 f, r l = 300 ? ) (figure 2) max6035 toc45 100 s/div v l 5v/div v out ac-coupled 100mv/div max6035 load transient (v out = 5v) (i out = 0 to 10ma, c l = 1 f, r l = 500 ? ) (figure 2) max6035 toc46 4 s/div v out ac-coupled 100mv/div v in 500mv/div max6035 line transient (v out = 2.5v) c l = 0 max6035 toc47 10 s/div v out ac-coupled 100mv/div v in 500mv/div max6035 line transient (v out = 3v) c l = 0 typical operating characteristics (continued) (v in = 5v for max6035aaur25/max6035aaur30, v in = 15v for max6035aaur50, i out = 0, t a = +25 c, unless otherwise noted.) max6035 toc48 4 s/div v out ac-coupled 100mv/div v in 500mv/div max6035 line transient (v out = 5v) c l = 0 v out 2v out 0v v l +v in v out c l r l max6035 figure 1. load-transient test circuit v out v out 0v v l +v in v out c l r l max6035 figure 2. load-transient test circuit
max6035 high-supply-voltage, precision voltage reference in sot23 12 ______________________________________________________________________________________ applications information input bypassing for the best line-transient performance, decouple the input with a 0.1f ceramic capacitor as shown in the typical operating circuit . locate the capacitor as close to the device as possible. where transient perfor- mance is less important, no capacitor is necessary. output/load capacitance devices in the max6035 family do not require any out- put capacitance for frequency stability. in applications where the load or the supply can experience step changes, an output capacitor of at least 0.1f reduces the amount of overshoot (undershoot) and improves the circuit s transient response. many applications do not require an external capacitor, and the max6035 family can offer a significant advantage in these applications when board space is critical. supply current the quiescent supply current of the max6035 series- mode family is typically 73a and is virtually indepen- dent of the supply voltage, with only a 0.7a/v (max) variation with supply voltage. in contrast, the quiescent current of a shunt-mode reference is a function of the input voltage due to a series resistor connected to the power supply. additionally, shunt-mode references have to be biased at the maximum expected load cur- rent, even if the load current is not present at the time. in the max6035 family, the load current is drawn from the input voltage only when required, so supply current is not wasted and efficiency is maximized at all input voltages. this improved efficiency reduces power dissi- pation and extends battery life. thermal hysteresis thermal hysteresis is the change of output voltage at t a = +25 c before and after the device is cycled over its entire operating temperature range. the typical tem- perature hysteresis value is 135ppm. turn-on time these devices typically turn on and settle to within 0.1% of their final value in 240s. increased output capacitance also increases turn-on time. temperature coefficient vs. operating temperature range for a 1 lsb maximum error in a data converter application, the reference voltage of the converter must stay within a certain limit to keep the error in the data converter smaller than the resolution limit through the operating temperature range. figure 3 shows the maximum allowable reference-voltage tem- perature coefficient to keep the conversion error to less than 1lsb, as a function of the operating temperature range (t max - t min ) with the converter resolution as a parameter. the graph assumes the reference-voltage temperature coefficient as the only parameter affecting accuracy. in reality, the absolute static accuracy of a data con- verter is dependent on the combination of many para- meters such as integral nonlinearity, differential nonlinearity, offset error, gain error, as well as voltage reference changes pin sot23 so name function 1 2 in input voltage 2 6 out reference output 3 4 gnd ground 1, 3, 5, 7, 8 n.c. no connection. not internally connected. pin description
max6035 high-supply-voltage, precision voltage reference in sot23 ______________________________________________________________________________________ 13 figure 3. temperature coefficient vs. operating temperature range for a 1 lsb maximum error temperature coefficient (ppm/ c) 110 100 16 bit 14 bit 12 bit 10 bit 8 bit 0.01 0.1 10 100 1000 1 10,000 18 bit 20 bit operating temperature range (t max - t min ) ( c) chip information transistor count: 84 process: bicmos
max6035 high-supply-voltage, precision voltage reference in sot23 14 ______________________________________________________________________________________ sot23 l.eps 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 .
max6035 high-supply-voltage, precision voltage reference 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. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 15 ? 2006 maxim integrated products is a registered trademark of maxim integrated products, inc. soicn .eps package outline, .150" soic 1 1 21-0041 b rev. document control no. approval proprietary information title: top view front view max 0.010 0.069 0.019 0.157 0.010 inches 0.150 0.007 e c dim 0.014 0.004 b a1 min 0.053 a 0.19 3.80 4.00 0.25 millimeters 0.10 0.35 1.35 min 0.49 0.25 max 1.75 0.050 0.016 l 0.40 1.27 0.394 0.386 d d min dim d inches max 9.80 10.00 millimeters min max 16 ac 0.337 0.344 ab 8.75 8.55 14 0.189 0.197 aa 5.00 4.80 8 n ms012 n side view h 0.244 0.228 5.80 6.20 e 0.050 bsc 1.27 bsc c h e e b a1 a d 0-8 l 1 variations: package information (continued) (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 .) revision history pages changed at rev 2: 1, 2, 3, 12, 15 pages changed at rev 3: 1, 2, 15

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