for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maximintegrated.com. max6006?ax6009 1? sot23 precision shunt voltage reference general description the max6006?ax6009 ultra-low-power shunt refer- ences are ideal for space-critical and low-power appli- cations. they are offered in 3-pin sot23 packages, and the minimum operating current is guaranteed to be < 1?. the devices feature low temperature coefficients of <30ppm/? and initial accuracy of better than 0.2%. available in +1.25v, +2.048v, +2.5v, and 3v output volt- ages, the max6006?ax6009 have references of +1.25v, +2.048v, +2.5v, and +3.0v, respectively. the devices can be used as lower-power, higher-precision upgrades to the icl8069, lm385, lt1004, and lm4040 references. the max6006?ax6009 are available in two grades: a and b. the a grade features a tempera- ture coefficient of 30ppm/? over the extended temper- ature range of -40? to +85?, with an initial accuracy of 0.2%. grade b features a temperature coefficient of 75ppm/? with an initial accuracy of 0.5%. max6006 in +1.25v and max6008 in +2.5v are offered in 8-pin so packages, as plug in upgrades for lt1004 and lm285. features ultra-low operating current: guaranteed < 1? small 3-pin sot23 package initial voltage accuracy: 0.2% temperature coefficient: 30ppm/? max temperature range: -40? to +85? factory-trimmed output voltages: +1.25v, +2.048v, +2.5v, +3.0v wide operating range: 1? to 2ma applications battery-powered equipment portable meters precision regulators a/d and d/a converters gnd 1 3 i.c. out max6006 max6007 max6008 max6009 sot23 top view 2 out n.c. gnd 1 + + 2 8 7 out n.c. n.c. n.c. n.c. so 3 4 6 5 pin configurations v s i rmin + i l i l i rmin r bias v out v r max6006 max6007 max6008 max6009 0.01f r bias = v s - v r i l + i rmin typical operating circuit 19-1730; rev 1; 7/12 ordering information part output voltage (v) initial accuracy (%) temp coefficient (ppm/c) pin-package top mark max6006aeur+t 1.25 0.2 30 3 sot23 +fzgh max6006aesa+ 1.25 0.2 30 8 so max6006beur+t 1.25 0.5 75 3 sot23 +fzgi max6006besa+ 1.25 0.5 75 8 so max6007aeur+t 2.048 0.2 30 3 sot23 +fzgk max6007aesa+ 2.048 0.2 30 8 so ordering information continued at end of data sheet. + denotes a lead(pb)-free/rohs-compliant package. t = tape and reel.
max6006?ax6009 1? sot23 precision shunt voltage reference 2 maxim integrated absolute maximum ratings electrical characteristics?ax6006 (t a = -40? to +85?, 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 ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. operating current (out to gnd) ......................................20ma forward current (gnd to out) ..........................................20ma continuous power dissipation (t a = +70?) 3-pin sot23 (derate 4mw/? above +70?) ..............320mw 8-pin so (derate 5.48mw/? above +70?)...............471mw operating temperature range ...........................-40? to +85? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? soldering temperature (reflow) .......................................+260? parameter symbol conditions min typ max units max6006a (0.2%) 1.2475 1.2500 1.2525 reverse breakdown voltage v r t a = +25 c, i r = 1.2? max6006b (0.5%) 1.2438 1.2500 1.2563 v minimum operating current i rmin v r change < 0.2% from v r at i r = 1.2? 0.5 1.0 ? i r = 1.2? to 200? 1.0 reverse breakdown change with current i r = 200? to 2ma 2.0 mv reverse dynamic impedance i r = 1.2? to 2ma (note 2) 1.5 ? low-frequency noise i r = 1.2?, f = 0.1hz to 10hz 30 v p-p max6006a 30 temperature coefficient (note 3) tc i r = 1.2? max6006b 75 ppm/ c long-term drift 1000h at t a = +25 c 150 ppm thermal hysteresis (note 4) 200 ppm
max6006?ax6009 1? sot23 precision shunt voltage reference 3 maxim integrated electrical characteristics?ax6007 (t a = -40? to +85?, unless otherwise noted. typical values are at t a = +25?.) (note 1) electrical characteristics?ax6008 (t a = -40? to +85?, unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units max6007a (0.2%) 2.0439 2.048 2.0521 reverse breakdown voltage v r t a = +25 c, i r = 1.2? max6007b (0.5%) 2.0378 2.048 2.0582 v minimum operating current i rmin v r change < 0.2% from v r at i r = 1.2? 0.5 1.0 ? i r = 1.2? to 200? 1.3 reverse breakdown change with current i r = 200? to 2ma 2.3 mv reverse dynamic impedance i r = 1.2? to 2ma (note 2) 1.8 ? low-frequency noise i r = 1.2?, f = 0.1hz to 10hz 50 v p-p max6007a 30 temperature coefficient (note 3) tc i r = 1.2? max6007b 75 ppm/ c long-term drift 1000h at t a = +25 c 150 ppm thermal hysteresis (note 4) 200 ppm parameter symbol conditions min typ max units max6008a (0.2%) 2.4950 2.5000 2.5050 reverse breakdown voltage v r t a = +25 c, i r = 1.2? max6008b (0.5%) 2.4875 2.5000 2.5125 v minimum operating current i rmin v r change < 0.2% from v r at i r = 1.2? 0.5 1.0 ? i r = 1.2? to 200? 1.5 reverse breakdown change with current i r = 200? to 2ma 2.5 mv reverse dynamic impedance i r = 1.2? to 2ma (note 2) 2 ? low-frequency noise i r = 1.2?, f = 0.1hz to 10hz 60 v p-p max6008a 30 temperature coefficient (note 3) tc i r = 1.2? max6008b 75 ppm/ c long-term drift 1000h at t a = +25? 150 ppm thermal hysteresis (note 4) 200 ppm
max6006?ax6009 1? sot23 precision shunt voltage reference 4 maxim integrated typical operating characteristics (c l = 0.01?, t a = +25?, unless otherwise noted.) -3.0 -2.0 -2.5 -1.0 -1.5 0 -0.5 0.5 -50 0 50 100 temperature drift max6006/9-01 temperature (?) reference voltage change (mv) i r = 1.2? v out = 2.5v 0.001 0.1 0.01 1 10 max6006 v out vs. current max6006/9-02 reverse current (ma) reverse voltage change (mv) 2.5 0 0.5 1.5 2.0 1.0 t a = +25c t a = +85c t a = -40c max6006 startup max6006/9-03 0 1.5v 1.2a 20ms/div electrical characteristics?ax6009 (t a = -40? to +85?, unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units max6009a (0.2%) 2.9940 3.000 3.0060 reverse breakdown voltage v r t a = +25?, i r = 1.2? max6009b (0.5%) 2.9850 3.000 3.0150 v minimum operating current i rmin v r change < 0.2% from v r at i r = 1.2? 0.5 1.0 ? i r = 1.2? to 200? 1.7 reverse breakdown change with current i r = 200? to 2ma 2.7 mv reverse dynamic impedance i r = 1.2? to 2ma (note 2) 2.2 ? low-frequency noise i r = 1.2?, f = 0.1hz to 10hz 75 v p-p max6009a 30 temperature coefficient (note 3) tc i r = 1.2? max6009b 75 ppm/ c long-term drift 1000h at t a = +25? 150 ppm thermal hysteresis (note 4) 200 ppm note 1: all devices are 100% production tested at t a = +25? and are guaranteed by design for t a = t min to t max , as specified. note 2: this parameter is guaranteed by the ?everse breakdown change with current?test. note 3: tc is measured by the ?ox?method; i.e., (v max - v min )/(t max - t min ). note 4: thermal hysteresis is defined as the change in the +25? output voltage after cycling the device from t min to t max .
max6009 0.01hz to 10hz noise max6006/9-08 time (2s/div) noise voltage (20 v/div) typical operating characteristics (continued) (c l = 0.01?, t a = +25?, unless otherwise noted.) max6006?ax6009 1? sot23 precision shunt voltage reference 5 maxim integrated max6006 0.01hz to 10hz noise max6006/9-04 time (2s/div) noise voltage (20 /div) 1.2 a 1000 1 0.01 100 1000 max6006 output impedance vs. frequency 10 100 max6006/9-05 frequency (khz) impedance ( ?) 0.1 10 1 i r = 6 a, ? i r = 1.2 a 0.001 0.1 0.01 1 10 max6009 v out vs. current max6006/9-06 reverse current (ma) reverse voltage change (mv) 2.5 0 0.5 1.5 2.0 1.0 t a = +85? t a = +25? t a = -40? max6009 startup max6006/9-07 0v 3v 20ms/div 1.2a 1000 1 0.01 100 1000 max6009 output impedance vs. frequency 10 100 max6006/9-09 frequency (khz) impedance ( ?) 0.1 10 1 i r = 6?, ? i r = 1.2?
max6006?ax6009 1? sot23 precision shunt voltage reference 6 maxim integrated detailed description the max6006?ax6009 are precision, two-terminal, series bandgap voltage references. on-chip thin-film resistors are laser trimmed to provide 0.2% output volt- age accuracies. voltages of +1.25v, +2.048v, +2.5v, and +3.0v are available in the space-saving sot23 package (2.1mm 2.7mm). applications information output/load capacitance for devices in this family, out needs to be bypassed to gnd with a 0.01? or larger capacitor. in applica- tions where the load or the supply can experience step changes, additional capacitance will reduce the amount of overshoot (or undershoot) and assist the cir- cuit? transient response. 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 temperature hysteresis value is typically less than 200ppm. turn-on time the output capacitance and bias current of the max6006?ax6009 greatly affects turn-on settling time. in the typical operating characteristics , turn-on time is shown with a 10nf output capacitor and a 1.2? bias current. under these conditions, the max6006 max6009 settle in 40ms. settling time will linearly decrease in proportion to the circuit? bias current. typical applications in the typical shunt regulator application shown in figure 1, r bias is used to set the current through the load (i l ) and the current through the shunt regulator (i rmin ). there are two worst-case situations that r bias needs to be sized for: 1) r bias must be small enough that when v s (supply voltage) is at its minimum and i l is at its maximum, i rmin is equal to at least the minimum operating current of the shunt regulator. 2) r bias must be large enough that when v s is at its maximum and i l is at its minimum, i rmin is < 2ma. pin description pin sot23 so name function 1 6, 8 out output voltage. bias out with a pullup resistor to a potential greater than out. bypass out to gnd with a 0.01 f or larger capacitor. 24 gnd ground 3 ic internally connected test point. leave this pin unconnected, or connect to gnd. 1, 2, 3, 5, 7 n.c. no connection. not internally connected. v s i rmin + i l i l i rmin r bias v out v r max6006 max6007 max6008 max6009 r bias = v s - v r i l + i rmin figure 1. typical application circuit
max6006?ax6009 1? sot23 precision shunt voltage reference 7 maxim integrated 1 5 2 3 4 r2 r1 200k? i out -1.0v to -7v -10v i out = 2.5v r2 max6008 max6008 max4162euk 1 5 3 4 r2 r1 200k? i out +1.0v to +7v +10v 2 max4162euk figure 2. precision 1? to 1ma current sources chip information process: bicmos ordering information (continued) part output voltage (v) initial accuracy (%) temp coefficient (ppm/c) pin-package top mark max6007beur+t 2.048 0.5 75 3 sot23 +fzgl max6007besa+ 2.048 0.5 75 8 so max6008aeur+t 2.50 0.2 30 3 sot23 +fzgn max6008aeur/v+t 2.50 0.2 30 3 sot23 +fzwo max6008aesa+ 2.50 0.2 30 8 so max6008beur+t 2.50 0.5 75 3 sot23 +fzgo max6008besa+ 2.50 0.5 75 8 so max6009aeur+t 3.00 0.2 30 3 sot23 +fzgq max6009aesa+ 3.00 0.2 30 8 so max6009beur+t 3.00 0.5 75 3 sot23 +fzgr max6009besa+ 3.00 0.5 75 8 so package information for the latest package outline information and land patterns (foot- prints), go to www.maximintegrated.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. 3 sot23 u3+1 21-0051 90-0179 8 so s8+2 21-0041 90-0096 + denotes a lead(pb)-free/rohs-compliant package. /v denotes an automotive qualified part. t = tape and reel.
maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated 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 guidance. 8 ________________________________maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 2012 maxim integrated products, inc. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. max6006?ax6009 1? sot23 precision shunt voltage reference revision history revision number revision date description pages changed 0 8/00 initial release 1 7/12 added /v to max6008 and updated ordering information . 7
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