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low noise, micropower 5.0 v precision voltage reference adr293 -ep rev. 0 information furnished b y analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to cha nge without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 0 2062 - 9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ? 2010 analog devices, inc. all rights reserved. features 6.0 v to 15 v s upply r ange supply c urrent : 15 a max imum low n oise : 15 v p - p t yp ical (0.1 hz to 10 hz) high o utput c urrent : 5 ma pin - c ompatible with the ref02/ref19x enhanced product fea tures supports defense and aerospace applications (aqec stan dard) military temperature range ( ?55c to +125c) controlled manufacturing baseline 1 assembly/test site 1 fabrication site enhanced product change notification qualification data available on request applications portable i nstrumentation precision r efere nce for 5 v s ystems a dc and dac r eference solar - p owered a pplications pin c onfiguration t op view (not to scale) 1 2 3 4 adr293-e p v in nc gnd nc 8 7 6 5 nc v out nc nc nc = no connect 09356-002 figure 1 . 8 - lead tssop (ru - 8) general description the adr293 - ep is a low noise, micropower precision voltage reference that utilizes an xfe t ? ( extra implanted junction fet) reference circuit. the xfet architecture offers significant performance improvements over traditional band gap and buried zener - based references. improvements include one quarter the voltage noise output of band gap refere nces operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis , and excellent long - term stability. the adr293 - ep is a series voltage reference providing stable and accurate output voltage from a 6.0 v supply. quiesc ent current is only 15 a max imum , making this device ideal for battery powered instrumentation. t he t emperature coefficient is 30 ppm/c max imum over the military temperature range , and the initial error is only 0.2% at 25c. line regulation and load regulation are typically 7 0 ppm/v and 30 ppm/ma, respectively, maintaining the references overall high performance. the adr293 - ep is specified over the military temperature range of C 55 c to +125c. this device is available in an 8 - lead tssop package . additional applications inform ation is available in the adr293 data sheet.
adr293 - ep rev. 0 | page 2 of 12 table of contents features .............................................................................................. 1 enhanced product features ............................................................ 1 applications ....................................................................................... 1 pin configuration ............................................................................. 1 general description ......................................................................... 1 revision history ............................................................................... 2 specifications ..................................................................................... 3 electrical specifications ................................................................3 absolute maximum ratings ............................................................5 thermal resistance .......................................................................5 esd caution ...................................................................................5 typical performance characteristics ..............................................6 outline dimension s ..........................................................................9 ordering guide .............................................................................9 revision history 9/ 10 rev ision 0: initial version
adr293 - ep rev. 0 | page 3 of 12 specifications e lectrical s pecific ations v s = 6.0 v, t a = 25 c, unless otherwise noted. table 1. parameter symbol condition s min typ max unit output voltage v o ut i out = 0 ma t grade 4.990 5.000 5.010 v initial accuracy i out = 0 ma t grade C10 +10 mv 0.20 % line regulation v o ut / v in 6.0 v to 15 v, i out = 0 ma t grade 40 150 ppm/v load regulation v o ut / i load v s = 6.0 v, i out = 0 ma to 5 ma t grade 30 150 ppm/ma long - term stability v o ut after 1000 h our s of o peration @ 125c 50 ppm voltage noise e n p - p f = 0.1 hz to 10 hz 15 v p -p voltage noise density e n f = 1 khz 640 nv/ hz v s = 6.0 v, t a = ? 25 c to + 85 c, unless otherwise noted. table 2. parameter symbol conditions min typ max unit temperature coe fficient tc v out i out = 0 ma t grade 10 25 ppm/c line regulation v out / v in 6.0 v to 15 v, i out = 0 ma t grade 50 200 ppm/v load regulation v out / i load v s = 6.0 v, i out = 0 ma to 5 ma t grade 30 200 ppm/ma
adr293 - ep rev. 0 | page 4 of 12 v s = 6.0 v, t a = ? 55 c to +125c , unless otherwise noted. table 3. parameter symbol conditions min typ max unit temperature coefficient tc v out i out = 0 ma t grade 10 30 ppm/c line regulation v out / v in 6.0 v to 15 v, i out = 0 ma t grade 70 250 ppm/v load regulation v out / i load v s = 6.0 v, 0 ma to 5 ma t grade 30 300 ppm/ma supply current i s @ 25c 11 15 a 15 20 a thermal hysteresis v out - hys t grade 157 p pm
adr293 - ep rev. 0 | page 5 of 12 absolute m aximum ratings table 4. parameter rating supply voltage 18 v output short - circuit duration to gnd indefinite storage temperature range ? 65c to +150c operating temperature range ? 55 c to +125c junction temperature range ? 65c to +150c lead temperature (soldering, 60 sec) 300c stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other con ditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. thermal resistance ja is specified fo r worst - case conditions ; that is, ja is specified for the device in socket testing . i n practice, ja is specified for the device soldered in a circuit board. table 5 . thermal resistance package type ja jc unit 8- lead tssop (ru -8) 240 43 c/w e sd caution
adr293 - ep rev. 0 | page 6 of 12 typical performance characteristics t a = 25c, unless otherwise noted. 5.006 4.994 ?60 ?30 0 30 60 90 120 output vo lt age (v) temper a ture (c) 09356-003 5.004 5.002 5.000 4.998 4.996 v s = 6v 3 typica l p arts figure 2 . v out vs. temperature 14 8 ?60 ?30 0 30 60 90 120 supp l y current (a) temper a ture (c) 09356-005 13 12 1 1 10 9 v s = 15v v s = 6v figure 3 . supply current vs. temperature 60 0 ?60 ?30 0 30 60 90 120 line regulation (ppm/v) temper a ture (c) 09356-006 50 40 30 20 10 v s = 6.1v t o 15b figure 4 . line regulation vs. temperature 80 70 0 ?60 ?30 0 30 60 90 120 line regulation (ppm/ma) temper a ture (c) 09356-009 50 60 40 30 20 10 v s = 6.1v i l = 0 t o 5m a figure 5 . load regulation vs. temperature 2 1 0 ?1 ?2 ?3 ?4 v out from nomina l (mv) 0.1 1 10 sourcing load current (ma) t a = +125c t a = +25c t a = ?40c 09356-010 figure 6 . v out from nominal vs. load current 1k 100 10 100 1k frequenc y (hz) 09356-0 1 1 volt age noise densit y (nv/ hz) v in = 15v t a = 25c figure 7 . voltage noise density vs. frequency
adr293 - ep rev. 0 | page 7 of 12 120 100 80 60 40 20 0 ripple rejection (db) 10 100 1k frequenc y (hz) v s = 6v 09356-012 figure 8 . ripple rejection vs. frequency 100 10 1 output impedance ( ?) 10 100 1k 10k frequency (hz) 09356-013 v s = 6v i l = 0ma figure 9 . output impedance vs. frequency 10v p-p 1s/div 09356-014 figure 10 . 0.1 hz to 10 hz noise 50s/div i l = 5m a 2v/div 5v/div 09356-015 figure 11 . turn - on time 50s/div i l = 5m a 2v/div 5v/div 09356-016 figure 12 . turn - off time 1ms/div i l = 5m a 09356-017 figure 13 . load transient response
adr293 - ep rev. 0 | page 8 of 12 1ms/div i i = 5m a c l = 1nf 09356-018 figure 14 . load transient response 1ms/div i i = 5m a c l = 100nf 09356-019 figure 15 . load transient response 18 16 14 12 10 8 6 4 2 0 frequenc y in number of units ?200 ?160 ?120 ?80 ?40 0 40 80 120 160 200 240 v out devi a tion (ppm) temper a ture +25c C40c +85c +25c 09356-020 figure 16 . typical hysteresis for the adr29x product
adr293 - ep rev. 0 | page 9 of 12 outline dimensions 8 5 4 1 pin 1 0.65 bsc seating plane 0.15 0.05 0.30 0.19 1.20 max 0.20 0.09 8 0 6.40 bsc 4.50 4.40 4.30 3.10 3.00 2.90 coplanarity 0.10 0.75 0.60 0.45 compliant to jedec standards mo-153-aa figure 17 . 8 - lead thin shrink small outline package [ tssop ] (ru - 8) dimensions shown in millimeters ordering guide model output volta ge (v) initial accuracy (%) temperature coefficient (ppm/c max) temperature range package description package option ordering quantity adr293t ru -ep 5.00 0.20 30 ? 55 c to +125c 8- lead tssop ru -8 96 adr293tru -ep -r7 5.00 0.20 30 ? 55 c to +125c 8-le ad tssop ru -8 1,000
adr293 - ep rev. 0 | page 10 of 12 n otes
adr293 - ep rev. 0 | page 11 of 12 notes
adr293 - ep rev. 0 | page 12 of 12 notes ? 2010 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. d09356 - 0- 9/10(0)

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