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general description the max6033 ultra-high-precision series voltage refer- ence features a low 7ppm/? (max) temperature coeffi- cient and a low dropout voltage (200mv, max). low temperature drift and low noise make the max6033 ideal for use with high-resolution adcs or dacs. this device uses bandgap technology for low-noise per- formance and excellent accuracy. laser-trimmed, high- stability, thin-film resistors, and postpackage trimming guarantee excellent initial accuracy (?.04%, max). the max6033 consumes only 40? of supply current and sources up to 15ma. series mode references save sys- tem power and use minimal external components com- pared to two-terminal shunt references. the max6033 is available in the miniature 6-pin sot23 package and is offered over the automotive tempera- ture range (-40? to +125?). applications precision regulators a/d and d/a converters power supplies hard-disk drives high-accuracy industrial and process control hand-held instruments features tiny 6-pin sot23 package ultra-low temperature drift: 7ppm/c (max) 0.04% initial accuracy stable with capacitive loads low 16 v p-p noise (0.1hz to 10hz) (2.5v output) 15ma output source current low 200mv dropout voltage low 40 a quiescent current wide 2.7v to 12.6v supply voltage excellent load regulation: 0.001mv/ma max6033 ultra-high-precision sot23 series voltage reference ________________________________________________________________ maxim integrated products 1 ordering information/selector guide 19-2300; rev 3; 3/12 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. part output voltage (v) temp coeff (ppm/?) initial accuracy (%) top mark max6033aaut25-t 2.500 10 0.04 abdf max6033aaut25#tg16 2.500 10 0.04 #acnc max6033baut25-t 2.500 15 0.20 aaxl max6033baut25#tg16 2.500 15 0.20 #acnd max6033caut25-t 2.500 40 0.10 aaxh max6033caut25#tg16 2.500 40 0.10 #acne max6033aaut30-t 3.300 10 0.04 abdg max6033aaut30#tg16 3.300 10 0.04 #acnf MAX6033BAUT30-T 3.300 15 0.20 aaxm max6033baut30#tg16 3.300 15 0.20 #acng ordering information/selector guide continued on last page. # denotes a rohs-compliant device that may include lead(pb) that is exempt under the rohs requirements. t = tape and reel. typical operating circuit appears at end of data sheet. gnd in i.c.* *i.c. = internally connected: do not use 16 outs 5 outf i.c.* sot23 top view 2 34 max6033 pin configuration
max6033 ultra-high-precision sot23 series voltage reference 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristicsv out = 2.500v (v in = 5v, c out = 0.1?, i out = 0a, t a = t min to t max , unless otherwise specified. 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. in to gnd ...............................................................-0.3v to +13v outf, outs to gnd................................................-0.3v to +6v continuous power dissipation (t a = +70?) 6-pin sot23 (derate 9.1mw/? above +70?)............727mw operating temperature range .........................-40? to +125? storage temperature range .............................-65? to +150? maximum junction temperature .....................................+150? lead temperature (soldering, 10s) .................................+300? soldering temperature (reflow) rohs-compliant packages ..........................................+245? packages containing lead(pb)....................................+240? parameter symbol conditions min typ max units max6033a 2.4990 2.5000 2.5010 max6033b 2.4950 2.5000 2.5050 output voltage v out t a = +25? max6033c 2.4975 2.5000 2.5025 v max6033a -0.04 +0.04 max6033b -0.2 +0.2 output-voltage accuracy t a = +25? max6033c -0.1 +0.1 % t a = -40 o c to +85 o c 1.5 7 max6033a t a = -40 o c to +125 o c 2.5 10 t a = -40 o c to +85 o c 310 max6033b t a = -40 o c to +125 o c 715 t a = -40 o c to +85 o c 620 output voltage temperature coefficient tcv out max6033c t a = -40 o c to +125 o c 10 40 ppm/? input voltage range v in inferred from line regulation specification 2.7 12.6 v t a = +25? 325 line regulation ? v out / ? v in 2.7v v in 12.6v t a = -40? to +125? 50 ?/v t a = +25? 0.001 0.05 load regulation ? v out / ? i out -100? i out 15ma t a = -40? to +125? 0.1 mv/ma v out = 0.1%, i out = 1ma 0.02 0.2 t a = -40 o c to +85 o c 0.3 0.4 dropout voltage (note 2) v do v out = 0.1%, i out = 10ma t a = - 40 o c to + 125 o c 0.5 v t a = +25 o c 40 60 t a = -40 o c to +85 o c 75 quiescent supply current i in t a = -40 o c to +125 o c 85 ? v out = 0v 90 output short-circuit current i sc v out = v in -2 ma 0.1hz f 10hz 16 ? p-p output-voltage noise e n 10hz f 1khz 12 ? rms turn-on settling time t on v out settles to ?.01% of final value 500 ? temperature hysteresis (note 3) 150 ppm long-term stability ? t = 1000hr 40 ppm
max6033 ultra-high-precision sot23 series voltage reference _______________________________________________________________________________________ 3 electrical characteristicsv out = 3.000v (v in = 5v, c out = 0.1?, i out = 0a, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (note 1) electrical characteristicsv out = 4.096v (v in = 5v, c out = 0.1?, i out = 0a, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units max6033a 2.9988 3.0000 3.0012 max6033b 2.9940 3.0000 3.0060 output voltage v out t a = +25 o c max6033c 2.9970 3.0000 3.0030 v max6033a -0.04 +0.04 max6033b -0.2 +0.2 output-voltage accuracy t a = +25 o c max6033c -0.1 +0.1 % t a = -40 o c to +85 o c 1.5 7 max6033a t a = -40 o c to +125 o c 2.5 10 t a = -40 o c to +85 o c310 max6033b t a = -40 o c to +125 o c715 t a = -40 o c to +85 o c620 output-voltage temperature coefficient tcv out max6033c t a = -40 o c to +125 o c1040 ppm/? input voltage range v in inferred from line regulation specification 3.2 12.6 v t a = +25? 4 30 line regulation ? v out / ? v in 3.2v v in 12.6v t a = -40? to +125? 60 ?/v t a = +25? 0.002 0.06 load regulation ? v out / ? i out -100? i out 15ma t a = -40? to +125? 0.12 mv/ma i out = 1ma 0.02 0.2 dropout voltage (note 2) v do ? v out = 0.1% i out = 10ma 0.2 0.4 v t a = +25 c4060 t a = -40 c to +85 c75 quiescent supply current i in t a = -40? to +125? 85 ? v out = 0v 90 output short-circuit current i sc v out = v in -2 ma 0.1hz f 10hz 24 ? p-p output-voltage noise e n 10hz f 1khz 15 ? rms turn-on settling time t on v out settles to ?.01% of final value 600 ? temperature hysteresis (note 3) 150 ppm long-term stability ? t = 1000hr 40 ppm parameter symbol conditions min typ max units max6033a 4.0943 4.0960 4.0977 max6033b 4.0878 4.0960 4.1042 output voltage v out t a = +25? max6033c 4.0919 4.0960 4.1001 v max6033a -0.04 +0.04 max6033b -0.2 +0.2 output-voltage accuracy t a = +25? max6033c -0.1 +0.1 %
max6033 ultra-high-precision sot23 series voltage reference 4 _______________________________________________________________________________________ electrical characteristicsv out = 4.096v (continued) (v in = 5v, c out = 0.1?, i out = 0a, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (note 1) electrical characteristicsv out = 5.000v (v in = 5.5v, c out = 0.1?, i out = 0a, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units t a = -40 o c to +85 o c 1.5 7 max6033a t a = -40 o c to +125 o c 2.5 10 t a = -40 o c to +85 o c310 max6033b t a = -40 o c to +125 o c715 t a = -40 o c to +85 o c620 output-voltage temperature coefficient tcv out max6033c t a = -40 o c to +125 o c1040 ppm/? input-voltage range v in inferred from line regulation specification 4.3 12.6 v t a = +25? 6 30 line regulation ? v out / ? v in 4.3v v in 12.6v t a = -40 o c to +125 o c60 ?/v t a = +25? 0.002 0.08 load regulation ? v out / ? i out -100? i out 15ma t a = -40 o c to +125 o c 0.15 mv/ma i out = 1ma 0.02 0.2 dropout voltage (note 2) v do ? v out = 0.1% i out = 10ma 0.2 0.4 v t a = +25? 40 60 t a = -40? to +85? 75 quiescent supply current i in t a = -40 o c to +125 o c 85 ? v out = 0v 90 output short-circuit current i sc v out = v in -2 ma 0.1hz f 10hz 32 ? p-p output-voltage noise e n 10hz f 1khz 22 ? rms turn-on settling time t on v out settles to ?.01% of final value 800 ? temperature hysteresis (note 3) 150 ppm long-term stability ? t = 1000hr 40 ppm parameter symbol conditions min typ max units max6033a 4.9980 5.000 5.0020 max6033b 4.9900 5.000 5.0100 output voltage v out t a = +25? max6033c 4.9950 5.000 5.0050 v max6033a -0.04 +0.04 max6033b -0.2 +0.2 output-voltage accuracy t a = +25? max6033c -0.1 +0.1 % t a = -40 o c to +85 o c 1.5 7 max6033a t a = -40 o c to +125 o c 2.5 10 t a = -40 o c to +85 o c310 max6033b t a = -40 o c to +125 o c715 t a = -40 o c to +85 o c620 output-voltage temperature coefficient tcv out max6033c t a = -40 o c to +125 o c1040 ppm/? input voltage range v in inferred from line regulation specification 5.2 12.6 v
max6033 ultra-high-precision sot23 series voltage reference _______________________________________________________________________________________ 5 parameter symbol conditions min typ max units t a = +25? 7 50 line regulation ? v out / ? v in 5.2v v in 12.6v t a = -40 o c to +125 o c 100 ?/v t a = +25? 0.003 0.1 load regulation ? v out / ? i out -100? i out 15ma t a = -40 o c to +125 o c 0.2 mv/ma i out = 1ma 0.02 0.2 dropout voltage (note 2) v do ? v out = 0.1% i out = 10ma 0.2 0.4 v t a = +25? 40 60 t a = -40 c to +85 c75 quiescent supply current i in t a = -40 o c to +125 o c85 ? v out = 0v 90 output short-circuit current i sc v out = v in -2 ma 0.1hz f 10hz 40 ? p-p output-voltage noise e n 10hz f 1khz 26 ? rms turn-on settling time t on v out settles to ?.01% of final value 1000 ? temperature hysteresis (note 3) 150 ppm long-term stability ? t = 1000hr 40 ppm electrical characteristicsv out = 5.000v (continued) (v in = 5.5v, c out = 0.1?, i out = 0a, t a = t min to t max , unless otherwise specified. typical values are at t a = +25?.) (note 1) typical operating characteristics (v in = 5v, c out = 0.1?, i out = 0a, t a = +25?, unless otherwise specified.) (note 4) note 1: max6033 is 100% production tested at t a = +25? and is guaranteed by design for t a = t min to t max as specified. note 2: dropout voltage is the minimum input voltage at which v out changes 0.1% from v out at v in = 5v (v in = 5.5v for v out = 5v). note 3: temperature hysteresis is defined as the change in +25? output voltage before and after cycling the device from t max to t min . output voltage vs. temperature (v out = 2.5v) max6033 toc01 temperature ( c) output voltage (v) 110 95 65 80 -10 5 20 35 50 -25 2.4982 2.4984 2.4986 2.4988 2.4990 2.4992 2.4994 2.4996 2.4998 2.5000 2.5002 2.5004 2.5006 2.5008 2.5010 2.4980 -40 125 3 typical units output voltage vs. temperature (v out = 5v) max6033 toc02 temperature ( c) output voltage (v) 110 95 65 80 -10 5 20 35 50 -25 4.9982 4.9984 4.9986 4.9988 4.9990 4.9992 4.9994 4.9996 4.9998 5.0000 5.0002 5.0004 5.0006 5.0008 5.0010 4.9980 -40 125 3 typical units load regulation (v out = 2.5v) max6033 toc03 output current (ma) output voltage (v) 18 16 12 14 2 4 6 8 10 0 2.4995 2.5000 2.5005 2.5010 2.5015 2.5020 2.5025 2.5030 2.5035 2.5040 2.4990 -2 20 t a = +85 c t a = +25 c t a = -40 c t a = +125 c
max6033 ultra-high-precision sot23 series voltage reference 6 _______________________________________________________________________________________ typical operating characteristics (continued) (v in = 5v, c out = 0.1?, i out = 0a, t a = +25?, unless otherwise specified.) (note 4) load regulation (v out = 5v) max6033 toc04 output current (ma) output voltage (v) 18 16 0 2 4 8 10 12 6 14 4.999 5.000 5.001 5.002 5.003 5.004 5.005 5.006 4.998 -2 20 t a = +85 c t a = +25 c t a = -40 c t a = +125 c dropout voltage vs. output current (v out = 2.5v) max6033 toc05 output current (ma) dropout voltage (mv) 18 16 14 12 10 8 6 4 2 100 200 300 400 500 600 700 0 020 t a = +85 c t a = +125 c t a = +25 c t a = -40 c dropout voltage vs. output current (v out = 5v) max6033 toc06 output current (ma) dropout voltage (mv) 18 16 12 14 4 6 8 10 2 50 100 150 200 250 300 350 400 450 500 550 600 0 020 t a = +85 c t a = +125 c t a = +25 c t a = -40 c power-supply rejection ratio vs. frequency (v out = 2.5v) frequency (khz) 0.001 1 10 100 0.01 0.1 1000 psrr (db) 0 -100 -90 -80 -70 -60 -50 -40 -10 -20 -30 max6033 toc07 -100 -70 -80 -90 -60 -50 -40 -30 -20 -10 0 0.001 0.1 0.01 1 10 100 1000 power-supply rejection ratio vs. frequency (v out = 5v) max6033 toc08 frequency (khz) psrr (db) supply current vs. input voltage (v out = 2.5v) max6033 toc09 input voltage (v) supply current ( a) 12 11 9 10 3 4 5 6 7 8 1 2 15 30 45 60 75 90 105 120 135 150 0 013 t a = +85 c t a = +125 c t a = +25 c t a = -40 c supply current vs. input voltage (v out = 5v) max6033 toc10 input voltage (v) supply current ( a) 12 11 9 10 3 4 5 6 7 8 1 2 20 40 60 80 100 120 140 160 180 200 220 0 013 t a = +85 c t a = +125 c t a = +25 c t a = -40 c 0.1hz to 10hz output noise (v out = 2.5v) max6033 toc11 v out 4 v/div 1s/div 0.1hz to 10hz output noise (v out = 5v) max6033 toc12 v out 10 v/div 1s/div
max6033 ultra-high-precision sot23 series voltage reference _______________________________________________________________________________________ 7 load transient (v out = 2.5v) max6033 toc13 2.5v 0 10ma i out 10ma/div v out 50mv/div ac-coupled 400 s/div v in = 5v c out = 0.1 f load transient (v out = 2.5v) max6033 toc14 2.5v -100 a 1ma 1ms/div i out 1ma/div v out 50mv/div ac-coupled v in = 5v c out = 0.1 f load transient (v out = 2.5v) max6033 toc15 2.5v 0 10ma i out 10ma/div v out 50mv/div ac-coupled 400 s/div v in = 5v c out = 10 f load transient (v out = 2.5v) max6033 toc16 2.5v -100 a 1ma i out 1ma/div v out 20mv/div ac-coupled 1ms/div v in = 5v c out = 10 f line transient (v out = 2.5v) max6033 toc17 5.5v 2.5v 4.5v v out 10mv/div ac-coupled v in 500mv/div ac-coupled 400 s/div c out = 0.1 f line transient (v out = 5v) max6033 toc18 6.5v 5v 5.5v v out 10mv/div ac-coupled v in 500mv/div ac-coupled 1ms/div c out = 0.1 f typical operating characteristics (continued) (v in = 5v, c out = 0.1?, i out = 0a, t a = +25?, unless otherwise specified.) (note 4)
max6033 ultra-high-precision sot23 series voltage reference 8 _______________________________________________________________________________________ typical operating characteristics (continued) (v in = 5v, c out = 0.1?, i out = 0a, t a = +25?, unless otherwise specified.) (note 4) turn-on transient (v out = 2.5v) max6033 toc19 5v 0 2.5v v out 1v/div v in 2v/div 100 s/div 0 c out = 0.1 f turn-on transient (v out = 5v) max6033 toc20 5.5v 0 5v v out 2v/div v in 2v/div 400 s/div c out = 0.1 f 0 turn-on transient (v out = 2.5v) max6033 toc21 5v 0 2.5v v out 1v/div v in 2v/div 2ms/div c out = 10 f 0 turn-on transient (v out = 5v) max6033 toc22 5.5v 0 5v v out 2v/div v in 2v/div 2ms/div c out = 10 f 0 note 4: many of the max6033 typical operating characteristics are similar. the extremes of these characteristics are found in the max6033 (2.5v output) and the max6033 (5v output). the typical operating characteristics of the remainder of the max6033 family typically lie between these two extremes and can be estimated based on their output voltages. long-term stability vs. time (v out = 2.5v) max6033 toc23 time (hours) v out (v) 900 800 600 700 200 300 400 500 100 2.49995 2.50000 2.50005 2.50010 2.50015 2.50020 2.50025 2.50030 2.50035 2.50040 2.49990 0 1000 5 typical units long-term stability vs. time (v out = 5v) max6033 toc24 time (hours) v out (v) 900 800 600 700 200 300 400 500 100 5.0000 5.0001 5.0002 5.0003 5.0004 5.0005 5.0006 5.0007 5.0008 5.0009 4.9999 0 1000 5 typical units
applications information bypassing/load capacitance for the best line-transient performance, decouple the input with a 0.1? ceramic capacitor as shown in the typical operating circuit . place the capacitor as close to in as possible. when transient performance is less important, no capacitor is necessary. the max6033 family requires a minimum output capac- itance of 0.1? for stability and is stable with capacitive loads (including the bypass capacitance) of up to 100?. in applications where the load or the supply can experience step changes, a larger output capacitor reduces the amount of overshoot (undershoot) and improves the circuit? transient response. place output capacitors as close to the device as possible. supply current the quiescent supply current of the max6033 series reference is typically 40? and is virtually independent of the supply voltage. in the max6033 family, the load current is drawn from the input only when required, so supply current is not wasted and efficiency is maxi- mized at all input voltages. this improved efficiency reduces power dissipation and extends battery life. when the supply voltage is below the minimum-speci- fied input voltage (as during turn-on), the devices can draw up to 150? beyond the nominal supply current. the input voltage source must be capable of providing this current to ensure reliable turn-on. output-voltage hysteresis output voltage hysteresis is the change in the output voltage at t a = +25? before and after the device is cycled over its entire operating temperature range. hysteresis is caused by differential package stress appearing across the bandgap core transistors. the typical temperature hysteresis value is 150ppm. turn-on time these devices typically turn on and settle to within 0.01% of their final value in >1?. the turn-on time can increase up to 2ms with the device operating at the minimum dropout voltage and the maximum load. precision current source figure 1 shows a typical circuit providing a precision current source. the outf output provides the bias cur- rent for the bipolar transistor. outs senses the voltage across the resistor and adjusts the current sourced by outf accordingly. high-resolution dac and reference from single supply figure 2 shows a typical circuit providing both the power supply and reference for a high-resolution dac. a max6033 with 2.5v output provides the reference voltage for the dac. max6033 ultra-high-precision sot23 series voltage reference _______________________________________________________________________________________ 9 pin description pin name function 1, 3 i.c. internally connected. do not connect externally. 2 gnd ground 4 in positive power-supply input 5 outf voltage reference force output. short outf to outs as close to the device as possible. bypass outf with 0.1? (min) capacitor to gnd. 6 outs voltage reference sense outs outf max6033 in gnd i source figure 1. precision current source out out ref 3v supply in gnd analog output max6033 v dd gnd max5143 dac figure 2. 14-bit high-resolution dac and positive reference from a single 3v supply
max6033 ultra-high-precision sot23 series voltage reference 10 ______________________________________________________________________________________ chip information process: bicmos ordering information/selector guide (continued) part output voltage (v) temp coeff (ppm/?) initial accuracy (%) top mark max6033caut30-t 3.300 40 0.10 aaxi max6033caut30#tg16 3.300 40 0.10 #acnh max6033aaut41-t 4.096 10 0.04 abdh max6033aaut41#tg16 4.096 10 0.04 #acni max6033baut41-t 4.096 15 0.20 aaxn max6033baut41#tg16 4.096 15 0.20 #aclg max6033caut41-t 4.096 40 0.10 aaxj max6033caut41#tg16 4.096 40 0.10 #acnj max6033aaut50-t 5.000 10 0.04 abdi max6033aaut50#tg16 5.000 10 0.04 #acnk max6033baut50-t 5.000 15 0.20 aaxo max6033baut50#tg16 5.000 15 0.20 #acnl max6033caut50-t 5.000 40 0.10 aaxk max6033caut50#tg16 5.000 40 0.10 #acnm # denotes a rohs-compliant device that may include lead(pb) that is exempt under the rohs requirements. t = tape and reel. outs supply input in gnd *input capacitor is optional reference output 0.1 f (min) 0.1 f* outf max6033 typical operating circuit package information for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a ?? ?? or ??in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. package type package code outline no. land pattern no. sot23-6 u6f-6 21-0058 90-0175 rohs sot23-6 ugfh-6
max6033 ultra-high-precision sot23 series voltage reference 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. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidanc e. 11 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2012 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history revision number revision date description pages changed 2 6/03 various changes 3 3/12 replaced ordering information table/ selector guide , updated packaging information 1, 10

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