micropower voltage reference n guaranteed 4mv initial accuracy ft1004-1.2 n guaranteed 20mv accuracy ft1004-2.5 n guaranteed 10 m a operating current n guaranteed temperature performance n operates up to 20ma n very low dynamic impedance the ft 1004 micropower voltage reference is a 2-terminal bandgap reference diode designed to provide high accuracy and excellent temperature characteristics at very low operating currents. optimis ation of the key parameters in the design, processing and testing of the device results in accuracy specifications previously attain- able only with selected units. below is a distribution plot of reference voltage for a typical lot of ft1004-1.2. virtually all of the units fall well within the prescribed limits of 4mv. the ft1004 is a pin-for-pin replacement for the ft185/385 series of references with improved accu- racy specifications. more important, the ft1004 is an attractive device for use in systems where accuracy was previously obtained at the expense of power consump- tion and trimming. for a low drift micropower reference with guaranteed temperature coefficient, see the ft1034 data sheet. n portable meter references n portable test instruments n battery-operated systems n current loop instrumentation features applicatio s u typical applicatio u descriptio u 1.2325 1.233 1.2335 1.234 1.2345 1.235 1.2355 1.236 1.2365 1.237 1.2375 number of parts 200 180 160 140 120 100 80 60 40 20 1200 parts t a = 25c , features description applications typical distribution of reference voltage (ft1004-1.2) micropower voltage reference ft1004
( reverse breakdown current ................................. 30ma forward current .................................................. 10ma storage temperature range ................ C 65 c to 150 c lead temperature (soldering, 10 sec)................. 300 c absolute axi u rati gs w ww u operating temperature range ft1004m....................... ................... C 55 c to 125 c ft 1004i ............................................. C 40 c to 85 c ft 1004c ................................................. 0 c to 70 c package/order i fo uu w order part number t jmax = 100 c, q ja = 160 c/ w t jmax = 100 c, q ja = 150 c/ w bottom view 12 h package 2-lead to-46 metal can 1 2 3 4 8 7 6 5 top view s8 package 8-lead plastic so nc nc nc gnd v out nc v out nc bottom view z package 3-lead plastic to-92 t jmax = 150 c, q ja = 440 c/w, q jc = 80 c/w 0412 0425 0412i 0425i ft1004cs8-1.2 ft1004cs8-2.5 ft1004is8-1.2 ft1004is8-2.5 s8 part marking ft1004mh-1.2 ft1004mh-2.5 ft1004cz-1.2 ft1004cz-2.5 ft1004iz-1.2 ft1004iz-2.5 order part number order part number the l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at t a = 25 c. (note 2) ft1004-1.2 ft1004-2.5 symbol parameter conditions min typ max min typ max units v z reverse breakdown voltage i r = 100 m a 1.231 1.235 1.239 2.480 2.500 2.520 v ft 1004m: C 55 c t a 125 c l 1.220 1.230 1.245 2.460 2.500 2.53 v ft1004c: 0 c t a 70 c l 1.225 1.235 1.245 2.470 2.500 2.53 v ft 1004i: C 40 c t a 85 c l 1.220 1.230 1.245 2.460 2.500 2.53 v d v z average temperature coefficient i min i r 20ma (note 3) 20 20 ppm/ c d temp i min minimum operating current l 810 1220 m a d v z reverse breakdown voltage i min i r 1ma 1.0 1.0 mv d i r change with current l 1.5 1.5 mv 1ma i r 20ma 10 10 mv l 20 20 mv r z reverse dynamic impedance i r = 100 m a 0.2 0.6 0.2 0.6 w l 1.5 1.5 w e n wide band noise (rms) i r = 100 m a, 10hz f 10khz 60 120 m v d v z long term stability i r = 100 m a, t a = 25 c 0.1 c 20 20 ppm/khr d time note 1: absolute maximum ratings are those values beyond which the life of a device may be impaired. note 2: all specifications are for t a = 25 c unless otherwise noted. note 3: selected devices with guaranteed maximum temperature coefficient are available upon request. for mil-std 883 components, please refer to ft "b" data sheet for test listing and parameters. electrical characteristics ft1004ch-1.2 ft1004ch-2.5 absolute maximum ratings package/order information electrical characteristics ft1004 micropower voltage reference
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