NJM8502 - 1 - ver. 01 precision, dual, jfet input operational amplifier features package outline low input offset voltage v io =400v max. v io =700v max. (ta= -40oc to +125oc) low input offset voltage drift ? v io / ? t=10v/oc max. (ta= -40oc to +125oc) small package msop8(vsp8) meet jedec mo-187-da low supply current icc=3ma max. high slew rate sr=20v/s typ. wide bandwidth gbp=7mhz typ. low noise en=10nv/ hz at f=1khz typ. low input bias current i b =80pa max. at ta=25oc guaranteed temperature topr= -40oc to +125oc operating voltage vopr= 4.5v to 16v general description the NJM8502 is a dual high precision jfet input operational amplifier featuring low offset, low offset drift, low bias current, high slew rate, low noise and wide operating temperature range. the precision performance, high speed and low noise make the NJM8502 especially suitable for filter and amplification of high speed and small signal in instruments, automated test equipment, sensors and other precision applications. applications current sensor photodiode amplification reference voltage circuit automatic test equipment pin configuration package description NJM8502r (msop8(vsp8)) 8 7 6 5 1 2 3 4 a b output a v ? ? input a +input a v + +input b output b ? input b (top view) 4.0 0.3 0.6max 2.9 ? 0.1 . 0.65 8 5 1 4 2.8 0.2 +0.3
NJM8502 - 2 - ver. 01 absolute maximum ratings (ta=25oc, unless otherwise noted.) parameter symbol rating unit supply voltage v + /v - 18 v common-mode input voltage range v ic 18 (note1) v differential input voltage range v id 36 v power dissipation(note4) p d 595(note2), 805(note3) mw operating temperature range topr -40 to +125 oc storage temperature range tstg -55 to +150 oc (note1) for supply voltage less than 18v, the absol ute maximum rating is equal to the supply voltage. (note2) eia/jedec standard test board (114.3 x 76.2 x 1.57mm, 2layers, fr-4) mounting. (note3) eia/jedec standard test board (114.3 x 76.2 x 1.6mm, 4layers, fr-4) mounting. (note4) see figure ?power dissipation curv e? when ambient temperature is over 25 ? c. recommended operating voltage parameter symbol rating min typ max unit supply voltage v + /v - 4.5 - 16 v power dissipation derating curve 0 100 200 300 400 500 600 700 800 900 0 255075100125150 ambient temperature ta(deg) power dissipation pd (mw) (note2) (note3)
NJM8502 - 3 - ver. 01 electrical characteristics dc character (v + /v - =15v, ta=25oc, v icm =0v, unless otherwise noted.) parameter symbol test condition min. typ. max. unit input characteristics input offset voltage v io 1 - 80 400 v v io 2 ta=-40oc to +125oc - - 700 v input offset voltage drift (note5) ? vio/ ? t ta=-40oc to +125oc - 1.0 10 v/oc input bias current i b 1 - 25 80 pa i b 2 ta=-40oc to +125oc - - 15 na input offset current i io 1 - 6 75 pa i io 2 ta=-40oc to +125oc - - 500 pa common mode input voltage range v icm 1 cmr 86db -12.5 - +12.5 v v icm 2 cmr 80db, ta=-40oc to +125oc -12.5 - +12.5 v common mode rejection ratio cmr1 v cm =-12.5v to +12.5v 86 108 - db cmr2 v cm =-12.5v to +12.5v, ta=-40oc to +125oc 80 - - db voltage gain av1 r l =2k ? , vo= -13.5v to +13.5v 90 100 - db av2 r l =2k ? , vo= -13.5v to +13.5v, ta=-40oc to +125oc 82 - - db channel separation cs dc - 125 - db output characteristics maximum output voltage v oh 1 r l =10k ? , ta=-40oc to +125oc +14.0 +14.2 - v v ol 1 r l =10k ? , ta=-40oc to +125oc - -14.9 -14.6 v v oh 2 r l =2k ? , ta=-40oc to +125oc +13.8 +14.1 - v v ol 2 r l =2k ? , ta=-40oc to +125oc - -14.8 -14.5 v v oh 31 r l =600 ? +13.5 +13.9 - v v oh 32 r l =600 ? , ta=-40oc to +125oc +11.4 - - v v ol 41 r l =600 ? - -14.3 -13.8 v v ol 42 r l =600 ? , ta=-40oc to +125oc - - -12.1 v supply characteristics quiescent current i cc 1 g v =+1, r l = - 2.6 3.0 ma i cc 2 g v =+1, r l = , ta=-40oc to +125oc - - 3.3 ma supply voltage rejection ratio svr1 v+/v-=4.5v to 16v 86 110 - db svr2 v+/v-=4.5v to 16v, ta=-40oc to +125oc 80 - - db (note5) guaranteed by endpoint limits. ac character (v + /v - =15v, ta=25oc, v icm =0v, unless otherwise noted.) parameter symbol test condition min. typ. max. unit dynamic performance unity gain frequency f t g v =+100, r l =2k ? , c l =10pf - 7.0 - mhz slew rate +sr rise, g v =+1, v in =1vpp, r l =2k ? - 20 - v/s -sr fall, g v =+1, v in =1vpp, r l =2k ? - 20 - v/s total harmonic distorti on thd f=1khz, gv=+1,r l =2k ? - 0.0005 - % noise performance input voltage noise v ni fo=1hz to 100hz - 0.18 - vrms input voltage noise density e n fo=1khz - 10 - nv/ hz
NJM8502 - 4 - ver. 01 electrical characteristics dc character (v + /v - =5v, ta=25oc, v icm =0v, unless otherwise noted.) parameter symbol test condition min. typ. max. unit input characteristics input offset voltage v io 1 - 80 400 v v io 2 ta=-40oc to +125oc - - 700 v input offset voltage drift (note5) ? vio/ ? t ta=-40oc to +125oc - 1.0 10 v/oc input bias current i b 1 - 21 75 pa i b 2 ta=-40oc to +125oc - - 10 na input offset current i io 1 - 5 50 pa i io 2 ta=-40oc to +125oc - - 500 pa common mode input voltage range v icm 1 cmr 86db -2.0 - +2.5 v v icm 2 cmr 80db, ta=-40oc to +125oc -2.0 - +2.5 v common mode rejection ratio cmr1 v cm =-2v to +2.5v 86 108 - db cmr2 v cm =-2v to +2.5v, ta=-40oc to +125oc 80 - - db voltage gain av1 r l =2k ? , vo= -3v to +3v 85 93 - db av2 r l =2k ? , vo= -3v to +3v, ta=-40oc to +125oc 80 - - db channel separation cs dc - 125 - db output characteristics maximum output voltage v oh 1 r l =10k ? , ta=-40oc to +125oc +4.1 +4.3 - v v ol 1 r l =10k ? , ta=-40oc to +125oc - -4.9 -4.7 v v oh 2 r l =2k ? , ta=-40oc to +125oc +3.9 +4.2 - v v ol 2 r l =2k ? , ta=-40oc to +125oc - -4.9 -4.5 v v oh 31 r l =600 ? +3.7 +4.1 - v v oh 32 r l =600 ? , ta=-40oc to +125oc +3.6 - - v v ol 41 r l =600 ? - -4.8 -4.3 v v ol 42 r l =600 ? , ta=-40oc to +125oc - - -4.2 v supply characteristics quiescent current i cc 1 g v =+1, r l = - 2.0 3.0 ma i cc 2 g v =+1, r l = , ta=-40oc to +125oc - - 3.3 ma (note5) guaranteed by endpoint limits. ac character (v + /v - =5v, ta=25oc, v icm =0v, unless otherwise noted.) parameter symbol test condition min. typ. max. unit dynamic performance unity gain frequency f t g v =+100, r l =2k ? , c l =10pf - 7.0 - mhz slew rate +sr rise, g v =+1, v in =1vpp, r l =2k ? - 18 - v/s -sr fall, g v =+1, v in =1vpp, r l =2k ? - 18 - v/s total harmonic distorti on thd f=1khz, gv=+1,r l =2k ? - 0.0005 - % noise performance input voltage noise v ni fo=1hz to 100hz - 0.18 - vrms input voltage noise density e n fo=1khz - 10 - nv/ hz
NJM8502 - 5 - ver. 01 test circuit fig.3 test circuit for quiescent current du t a vc c vee fig.1 test circuit for input offset voltage, input offset current, input bias current voltage gain, supply voltage rejection ratio, common mode rejection ratio fig.2 test circuit for maximum output voltage 100k 50 rl ec dut ek 50 100k 50k 50k 10k 9.1k 1k 1k 9.1k 100k vout v vcc vee rl dut vout v 1v vcc vee
NJM8502 - 6 - ver. 01 electrical characteristics input offset voltage distribution v + /v - =15v, v icm =0v, ta=25c 0 5 10 15 20 25 30 35 -400 -300 -200 -100 0 100 200 300 400 input offset voltage [v] number of amplifiers n=120pcs input offset voltage drift distribution v + /v - =15v, v icm =0v, ta=-40c to 125c 0 10 20 30 40 50 60 -10-8-6-4-2 0 2 4 6 810 input offset voltage drift [v/c] number of amplifiers n=120pcs input offset voltage drift distribution v + /v - =5v, v icm =0v, ta=-40c to 125c 0 10 20 30 40 50 60 -10-8-6-4-2 0 2 4 6 810 input offset voltage drift [v/c] number of amplifiers n=120pcs input offset voltage distribution v + /v - =5v, v icm =0v, ta=25c 0 5 10 15 20 25 30 35 -400 -300 -200 -100 0 100 200 300 400 input offset voltage [v] number of amplifiers n=120pcs input offset voltage vs. temperature v + /v - =15v, v icm =0v -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 -50 -25 0 25 50 75 100 125 150 temperature [c] input offset voltage [v] input offset voltage vs. temperature v + /v - =5v, v icm =0v -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 -50 -25 0 25 50 75 100 125 150 temperature [c] input offset voltage [v]
NJM8502 - 7 - ver. 01 open-loop gain vs. temperature v icm =0v, r l =2k ? 0 20 40 60 80 100 120 -50 -25 0 25 50 75 100 125 150 temperature [c] open-loop gain [db] v + /v - =15v, v o =-13.5v to +13.5v v + /v - =5v, v o =-3v to +3v supply voltage rejection ratio vs. temperature v + /v - =4.5v to 16v, v icm =0v 0 20 40 60 80 100 120 140 -50 -25 0 25 50 75 100 125 150 temperature [c] supply voltage rejection ratio [db] common-mode rejection ratio vs. temperature 0 20 40 60 80 100 120 140 -50 -25 0 25 50 75 100 125 150 temperature [c] common-mode rejection ratio [db] v + /v - =15v, v icm =-12.5v to +12.5v v + /v - =5v, v icm =-2v to +2.5v input offset voltage vs. common-mode voltage v + /v - =15v, v icm =-12.5v to +12.5v -800 -600 -400 -200 0 200 400 600 800 -15 -10 -5 0 5 10 15 input common-mode voltage [v] input offset voltage [v] ta=125c ta=-40c ta=25c input offset voltage vs. common-mode voltage v + /v - =5v, v icm =-2v to +2.5v -800 -600 -400 -200 0 200 400 600 800 -5-4-3-2-1012345 input common-mode voltage [v] input offset voltage [v] ta=125c ta=-40c ta=25c input bias current vs. temperature v icm =0v 1p 10p 100p 1n 10n 100n -50 -25 0 25 50 75 100 125 150 temperature [c] input bias current [a] v + /v - =15v v + /v - =5v
NJM8502 - 8 - ver. 01 maximum output voltage vs. load resistance v + /v - =15v, v in+ =1v/-1v, v in -=0v -15 -12.5 -10 -7.5 -5 -2.5 0 2.5 5 7.5 10 12.5 15 100 1k 10k 100k load resistance [ ? ] maximum output voltage [v] ta=125c ta=-40c ta=25c ta=125c ta=25c ta=-40c maximum output voltage vs. load resistance v + /v - =5v, v in+ =1v/-1v, v in -=0v -5 -4 -3 -2 -1 0 1 2 3 4 5 100 1k 10k 100k load resistance [ ? ] maximum output voltage [v] ta=125c ta=-40c ta=25c ta=125c ta=25c ta=-40c quiescent current vs. supply voltage gv=0db, v icm =0v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 2 4 6 8 10 12 14 16 supply voltage v + /v - [v] quiescent current [ma] ta=-40c ta=25c ta=125c quiescent current vs. temperature g v =0db, v icm =0v 1.0 1.5 2.0 2.5 3.0 3.5 -50 -25 0 25 50 75 100 125 150 temperature [c] quiescent current [ma] v + /v - =16v v + /v - =15v v + /v - =5v v + /v - =4.5v maximum output voltage vs. temperature v + /v - =15v, v in+ =1v/-1v, v in -=0v -15 -12.5 -10 -7.5 -5 -2.5 0 2.5 5 7.5 10 12.5 15 -50 -25 0 25 50 75 100 125 150 temperature [oc] maximum output voltage [v] r l =10k ? r l =2k ? r l =600 ? r l =10k ? r l =2k ? r l =600 ? maximum output voltage vs. temperature v + /v - =5v, v in+ =1v/-1v, v in -=0v -5 -4 -3 -2 -1 0 1 2 3 4 5 -50 -25 0 25 50 75 100 125 150 temperature [oc] maximum output voltage [v] r l =10k ? r l =2k ? r l =600 ? r l =10k ? r l =2k ? r l =600 ?
NJM8502 - 9 - ver. 01 gain/phase vs. frequency v + /v - =15v, r f =100k ? , r g =1k ? , r l =2k ? , ta=25oc -60 -40 -20 0 20 40 60 1k 10k 100k 1m 10m 100m frequency [hz] voltage gain [db] -180 -120 -60 0 60 120 180 phase [deg] c l =100pf c l =1000pf gain phase c l =10pf c l =1000pf c l =10pf c l =100pf gain/phase vs. frequency v + /v - =5v, r f =100k ? , r g =1k ? , r l =2k ? , ta=25oc -60 -40 -20 0 20 40 60 1k 10k 100k 1m 10m 100m frequency [hz] voltage gain [db] -180 -120 -60 0 60 120 180 phase [deg] c l =100pf c l =1000pf gain phase c l =10pf c l =1000pf c l =10pf c l =100pf large signal step response v + /v - =15v, gv=0db, v in =10vpp, r l =2k ? 1sec/div 2v/div input output small-signal step response (road capacitance) v + /v - =15v, gv=0db, v in =1v pp , r l =2k ? , ta=25oc 0.1sec/div 0.2v/div 100pf 10pf 1000pf input output 300pf small-signal step response (temperature) v + /v - =15v, gv=0db, v in =1v pp , r l =2k ? , c l =10pf 0.1sec/div 0.2v/div -40oc 25oc 125oc input output cmr vs. frequency gv=60db, ta=25c -20 0 20 40 60 80 100 120 140 100 1k 10k 100k 1m 10m frequency [hz] common mode rejection ratio [db] v + /v - =15v v + /v - =5v
NJM8502 - 10 - ver. 01 [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. input voltage noise density vs. frequency gv=40db, r g =100 ? , r l =10k ? , ta=25c 0 10 20 30 40 50 60 70 80 90 100 1 10 100 1k 10k frequency [hz] input voltage noise density [nv/ hz] v + /v - =15v v + /v - =5v 1hz to 100hz input voltage noise v + /v - =15v, 1 to 100hz bpf -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 012345678910 time [sec] voltage [v] supply voltage rejection ratio vs. frequency v + /v - =15v, gv=40db, ta=25oc -20 0 20 40 60 80 100 120 140 100 1k 10k 100k 1m 10m frequency [hz] supply voltage rejection ratio [db] +svr -svr
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