dvs. s.iv -conaucto't \pioaact i, one. 20 stern ave. springfield, new jersey 07081 u.s.a. features ultra low noise tight matching high breakdown voltage high gain low capacitance improved second en = 0.9nv/vhz (typ) ivgsi-2l = 20rnv max bvgss = 40v max g(s = 20ms (typ) 25pf typ source replacement for 2sk389 absolute maximum ratings1 @ 25 c (unless otherwise stated) maximum temperatures storage temperature junction operating temperature -65to+150c -55to+135c maximum power dissipation continuous power dissipation @ +25c maximum currents gate forward current maximum voltages gate to source gate to drain 400mw lc(f) = 10ma vgss = 40v vgds = 40v telephone: (973) 376-2922 (212) 227-6005 LSK389 ultra low noise monolithic dual n-channel jfet top view to-71 soic-a s2 d2o 6 g2 t|g2 7]ss ] d2 t] s2 for equivalent single version, see lsk170 family. matching characteristics @ 25c (unless otherwise stated) symbol vgsi ? vgs^ idssi idss2 characteristic differential gate to source cutoff voltage gate to source saturation current ratio min 0.9 typ max 20 units mv ? conditions vds = 10v, ld=1ma vds = 1 0v, vgs = 0v electrical characteristics @ 25c (unless otherwise stated) symbol bvcss vgs(off) loss igss ig1g2 characteristic gate to source breakdown voltage gate to source pinch-off voltage drain to source saturation current LSK389a LSK389b LSK389c LSK389d gate to source leakage current gate to gate isolation current min -40 -0.15 2.6 6 10 17 typ max -2 6.5 12 20 30 -200 1.0 units v v ma pa ua conditions vds = 0, !d=-100ua vds = 10v, !d=0.1ua vgs = -30v, vds = 0 vg1-g2 = 45v, id=is = oa _ note: all min/typ/max limits are absolute numbers. negative signs indicate electrical polarity only. quality semi-conductors
electrical characteristics cont. @ 25c (unless otherwise stated) symbol g,s en en ciss crss characteristic full conduction transconductance noise voltage noise voltage common source input capacitance common source reverse transfer cap. min 8 typ 20 0.9 2.5 25 5.5 max 1.9 4 units ms nv/vhz nv/vhz pf pf conditions vds = 10v, vgs = 0, f=1 khz vds= 10v, id = 2ma, f= 1khz, new =1 hz vds= 10v, id = 2ma, f= 10hz, nbw= 1hz vos=10v, vgs = 0, f=1mhz, vdg = 10v, id = 0, f=1mhz, ordering information LSK389 - / loss range a b c d a - soic-8 ' \e 2. 6 -6.5ma 6- 12 ma 10 -20ma 17 -30ma to-71 soic-8 to-71 6l soic-a 8l package dimensions to-71 six lead k? 0.195 d,a u 0.175 0.030 max. ?r 6 leads- 1 0.019 dia. i 0.016 i 0.100- i 1 i \ ' 0.046 *' r , . q 230 0.014 rnr ' 0.209 <"s 1 lu- t . llk 0.210 i __ 0.170 cq21 -l, ifi3 *l 1 i iuu i ^ : i! ? -5 m|n i n n i a.150 t 100 1 |*?-0.050 l_ jf h^x o.oq75 ! 1 soic-a o 0.2284 id j- 0,050 ^iti? ' ' -llj 0,189 -rn 196 in-, i m i l_ 0.0040 r ?"" ^ po*. >\8 " 0,2440 l '' xst v?oxj6,y dimensions in z^s/ inches 'v ?* 0048 0.036 0.028 all dimensions in inches.
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