sg1503/sg2503/sg3503 rev 1. 3 1 0 / 01 l i n f i n it y microelectronics inc. copyright ? 1996 11861 western avenue garden grove, ca 92841 1 (714) 898-8121 fax: (714) 893-2570 precision 2.5-volt reference features output voltage trimmed to 1% input voltage range of 4.5 to 40v temperature coefficent of 10ppm/c quiescent current typically 1.5ma output current in excess of 10ma interchangeable with mc1503 and ad580 high reliability features - sg1503 available to mil-std-883 and desc smd radiation data available lmi level "s" processing available description this monolithic integrated circuit is a fully self-contained precision voltage reference generator, internally trimmed for 1% accuracy. requiring less than 2ma in quiescent current, this device can deliver in excess of 10ma with total load- and line-induced tolerances of less than 0.5%. in additon to voltage accuracy, internal trimming achieves a temperature coefficient of output voltage of typically 10 ppm/ c. as a result, these references are excellent choices for application to critical instrumentation and d-to-a converter systems. the sg1503 is specified for operation over the full military ambient temperature range of -55 c to 125 c , while the sg2503 is designed for -25 c to 85 c and the sg3503 for commercial applications of 0 c to 70 c. functional diagram
sg1503/sg2503/sg3503 rev 1. 3 10 /0 1 l i n f i n it y microelectronics inc. copyright ? 1996 11861 western avenue garden grove, ca 92841 2 (714) 898-8121 fax: (714) 893-2570 absolute maximum ratings (note 1) input voltage ....................................................................... 40v storage temperature range ............................. -65 c to 150 c operating junction temperature hermetic (t, y - package) ............................................. 150 c plastic (m, dm - package) ............................................ 150 c lead temperature (soldering, 10 seconds) .................. 300 c note 1. exceeding these ratings could cause damage to the device. thermal data note a. junction temperature calculation: t j = t a + (p d x q ja ). note b. the above numbers for q jc are maximums for the limiting thermal resistance of the package in a standard mount- ing configuration. the q ja numbers are meant to be guidelines for the thermal performance of the device/pc- board system. all of the above assume no ambient airflow. t package: thermal resistance- junction to case , q jc ................... 15c/w thermal resistance- junction to ambient , q ja ............ 120c/w y package: thermal resistance- junction to case , q jc .................. 50c/w thermal resistance- junction to ambient , q ja ........... 130c/w m package: thermal resistance- junction to case , q jc ................... 60c/w thermal resistance- junction to ambient , q ja ............. 95c/w dm package: thermal resistance- junction to case , q jc .................. 55c/w thermal resistance- junction to ambient , q ja ........... 165c/w input voltage .......................................................... 4.5v to 40v operating ambient temperature range sg1503 ............................................................ -55c to 125c sg2503 ............................................................. -25c to 85c sg3503 ................................................................ 0c to 70c note 2. range over which the device is functional. recommended operating conditions (note 2) electrical characteristics (unless otherwise specified, these specifications apply over the operating ambient temperatures for sg1503 with -55c t a 125c, sg2503/sg3503 with 0c t a 70c, v in = 15v, and i l = 0ma. low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) units sg3503 min. typ. max. min. typ. max. sg1503/2503 test conditions 2.485 4.7 4.5 15 2.515 40 40 3 5 5 8 20 5 2.0 30 2.500 1 3 3 4 5 1.5 20 76 100 250 v v v mv mv mv mv mv mv ma ma db m v rms m v/khr 2.475 4.7 4.5 15 parameter output voltage input voltage line regulation load regulation temperature regulation quiescent current short circuit current ripple rejection output noise voltage stability 2.500 1 3 3 4 15 2.5 1.5 20 76 100 250 t a = 25 c t a = 25 c v in = 5v to 15v v in = 15v to 40v d i l = 10ma d i l = 10ma, v in = 30v (sg1503 only) (sg2503/3503 only) v in = 40v t a = 25 c f = 120hz, t a = 25 c bw = 10khz, t a = 25 c 2.525 40 40 3 10 10 15 10 2.0 30
sg1503/sg2503/sg3503 rev 1. 3 10 / 01 l i n f i n it y microelectronics inc. copyright ? 1996 11861 western avenue garden grove, ca 92841 3 (714) 898-8121 fax: (714) 893-2570 characteristic curves figure 1. output voltage vs. temperature figure 2. ripple rejection ambient temperature range part no. package connection diagram 8-pin ceramic dip y - package sg1503y/883b -55c to 125c sg1503y/desc -55c to 125c sg1503y -55c to 125c sg2503y -25c to 85c SG3503Y 0c to 70c connection diagrams & ordering information (see notes below) 8 7 6 5 2 1 3 4 v out v in gnd n.c. n.c. n.c. n.c. n.c. 8-pin plastic dip m - package sg2503m -25c to 85c sg3503m 0c to 70c 8-pin plastic soic dm - package s g 25 0 3 dm -25 c to 85 c sg3503d m 0c to 70c n.c. n.c. n.c. n.c. v out v in gnd n.c. 2 1 3 4 8 7 6 5 3-pin to-39 metal can t - package sg1503t/883b -55c to 125c sg1503t/desc -55c to 125c sg1503t -55c to 125c sg2503t -25c to 85c sg3503t 0c to 70c gndv out 32 1v in note 1. contact factory for jan and desc product availablity. 2. all packages are viewed from the top.
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