Signetics Integrated Circuits Operational Amplifiers LF155 Series High Performance J-FET Input OPERATIONAL AMPLIFIERS INTRODUCTION LF 155, LF155A, LF 355, LF355A (low Supply Current) LF156, LF1S56A, LF356, LF356A (Wide Band) LF 157, LFI57A, LF367, LF357A (Wide Band) The LF 155, LF156, LF157 Series of operational amp! fiers employ well matched, high voltage JFET input structures on the same monolithic chip as bipolar devices. These amplifiers feature low input bias and offset currents, Icw offset voltage and offset voltage drift, coupled with offset adjust which does not degrade drift or common mode rejection. The devices are also designed for high slew rate, wide bandwidth, extremely fast setting and low noise. COMMON FEATURES (LF 155A/156A/157A) @ Low input bias current 30pA e Low input offset current 3pA @ High input impedance 1077.2 e@ Low imput offset voltage imV @ Low Vos temperature drift 3uV/C @ Low input noise current 0.01pA//4z SPECIFIC FEATURES LF 155A LFI56A @ Setting time (0.01%) 4us 1.5us @ High stew rate 5v/us 12v/us @ Wide bandwidth 2.5MHz SMHz @ Low input noise 20nV/ JAZ 12nVi/VFZ @ F155, LF156military qualifications pending LFIB7A (Ay = 5) @ Setting time (0.01%) 1.5us High slew rate E0v/us e@ Wide bandwidth 20MHz Low input noise 12nV/VAz APPLICATIONS Precision high speed integrators Fast A/D, 0/A converters @ High impedance buffers @ Widebank, low noise, low drift amplifier REFERENCE TABLE CONNECTION DIAGRAM T PACKAGE NC BALANCE @ @ vt INVERTING ] output NONINVERTING BALANCE ve N PACKAGE OFFSET NULL G FREQ COMP MAXIMUM RATINGS PARAMETER RATING UNIT Supply voltage LE155A/6A/7A, LF155/6/7 22 v LF355A/6A/7A, LF355/6/7 +18 Vv Power dissipation! TO-G9 (T-package} LFISSA/6A/7A, LF155/6/7 670 mw LFS55A/6A/7A, LF355/6/7 500 mw Operating temperature range LFISSA/6A/7A, LF185/6/7 LF355A/6A/7A, LF355/6/7 55 to +426 C 0 to +70 c OUTLINE Ty (Max) TYPE NO. STOCK NO. DRWG. NO. LF155A/6A/7A, LF155/6/7 150 C LE155T 55875X 7 LF3S5A/6A/74A, LF3E5/6/7 400 C LF156T 55876H Input voltage range LFI57T 55877F ul LF155A/6A/74, LF155/6/7 +20 Vv LF355N 55878D 8 LF355A/6A/74, LF355/6/7 +20 Vv LE355T 55879B .7 Output short circuit duration LE355AN 55880E 8 LFISSA/6GA/74, LF155/6/7 Continuous LFE355AT 55881C 7 5 LF355A/6A/7A, LF355/6/7 Continuous LE356N 5588 torage temperature range LE386T pee g LFISSA/6A/7A, LF155/6/7 65 to +150 C LESBIN 558841 a LF355A/6A/7A, LF355/6/7 -6510+150 C LE357T 55885F 7 Lead temperature (soldering, on LF357AN 55886D 8 10sec.) 300 he LES87AT Be887B8 3 LF155A/6A/7A, LF155/6/7 300 C LF355A/6A/7A, LF355/6/7 300 c NOTES 1. The TO-99 package must be derated based on a thermal resistance of 150C/W junction to arnbient or 25C/W junction to case. 2. Unless otherwise specified, the absolute maximum nega- tive input voltage is equal! to the negative power supply PLEASE QUOTE STOCK NO. AND MANUFACTURERS PART NO. WHEN ORDERING er eS 63Outline Drawings Signetics Lol eco {sto} ge0 _, | ; sie Geoveso {060 me overs I typo BEL (a a | Soy eE1 I {o0e) 29 feet iseey EoOL soa) $20 ot + tH sv) st AM {8907 ft ti Lo (o6z') Lee OLED 8% . oe (sve) zegh ' (OLE) eae ' to (s62) aL'6t CAAA A al N + ON QV37 _t {890} sot {yr0) Z1L {oot} z9'4 {9807 91% teso7 zeL (se) 001 7 t ! 4 4 5 IKE 9 tors ave SUEY tata) 32 loon zst Get tere (gto) 80 ts69) so'eL / a b ~ i 1 tori seo if em ar J surat a i ' } + istolere i eerteve stgyseo| CLS LIL LI LS bp f 4 (Se0reao a, 3 (90) $0 S20 160 | _ Moss 66 (062) 2e2 1o19) erst {OLE} Be (ava) varet (997 ory (gee) 229 (zszTors { WS) i LON QV: o @ LON ava? 265 [OT EE AND MANUFACTURERS PART NO. WHEN ORDERING PLEASE QUOTE STOCK NO.Signetics Outline Drawings @ 1.91 (075) 1.65 (086) : tel 17.65 (.695) 15.24 (.600) 4.98 (580) 18.48 (.610) [7 EAD NO. fy | socal Ninh 10) Ca BE os py 36,06 (1.455) 36.78 (1.440) | O 0.83 (.021) 0.38 (015) 2 > 3 3 iS 2 a 2 QI 2 8 He 3 eet INSULATOR *\ 048 1019) 647 (076) OF B LEADS. 9.40 (.370) 9.02 1.385) A 0.78 4.030) A OST (A ~ 4S 2 2 Tye. ! $3 38 1,02 (.040} 0. ara (029) ar fat 2.16 (.085} 1,88 (.074) \ _. 1 | eile 5 sis BE ols 3 ge ee ze gg =e sis BS sie ae F 3.94 (.155) 3.68 (.145) B94 (352) 152,060) | 8.46 (345) 1.02 (040) he 81 (7.095) (78.07 (1,105) 2? 3,43 (.135) 3.06 (120) LEAD ol 1 6.40 (.252) 6.22 (.245) Cat 9.53 (.375) 9.27 (365) a __ 7.67 L310) 7.37 (.200) 1.66 (086) 1.39 (065) FOR CURRENT PRICES PHONE HARLOW (0279) 29644Signetics Outline Drawings [+228 1828 a 7 -| 9 I"8.00 (375) '% 0.76 4,030) 10 TO 0.81 (020) 4.70 4.185) 4.19 (165) ta \ [roa INSULATOR : | 14.28 | 28 (562) 12.70 70 (500) ~~ 10 LEADS 0.48 (.018) L [ | { 041 (018) DIA. je 9:40 (370) ig 9,02 (.355+ i TN 6.10 (.240) 4.06 (160) 7 26 589 (220) 3.08 (120) po" a ot 1.02 (,040} 0.74 (.029) SNe ~_ 0.86 (.034) on (028) pil i 0.489 cc to, 48 max 85 a) max | = colaen max 12,7 min | 7269267 Yous pmax =, wl 12,7min +! CONNECTIONS DRWG NO. 1 2 3 4 pin 4 connected to case 134 yo Vp Vi VN 12.3 : a 2 8 Substrate . connected to envelope PLEASE QUOTE STOCK NO. AND MANUFACTURERS PART NO. WHEN ORDERING ETT 267Signetics Outline Drawings j- 8.26 (325) 13 ~ 8.05 (3161 | f 7 0.76 [,030} [081 5020) 6.8 209) 5.97 (235) | 1.14 (048) i 2s OO \ 1 [oa (ovat SULATOR 14.28 (882) ! 72.70 (.500) 0.48 (0181 - aat (o16)'* { 10 LEADS: . 3:98 (370) _ 9.02 (355) * 6.10 (.240) 5.59 (.220) Y SON y AC ase woe > 0.71 (028) 7 14 } 11.43 (.450) 6.35 (250) 4.70 (185) 4.19 (.165) 0.78 1.030) |; 051 (.020) 14.27 (.962) 12.76 (600) 3 LEADS 9.48 1,019) 0.41 Core) i 2.87 1.105) Terminal 4 (7095) Connections a Pin 1 Input 1 Pin 2 Output Case Ground gge \ 0.86 {.034) 0.73 (028) Ny 7 22.23 (0.875) MAX. DIA. | 3.43 (136) MAX. \ ot | J 1 Il 7.93 (.312) MIN 30.40 23.90 41.197) Is i PIN NO. 2 TERMINAL comers PIN 1 INPUT PIN 2 - OUTPUT CASE GROUND PINNO.1 aol 17.15 (675) t SEATING PILANE 3.01 (115) OLA 4.78 {.188) R. MAX. 7 Both Ends S 2MOUNTING HOLES 4.09 (161) 4 SRST \L 13.35 1.525) &. MAX ZPINS 1.09 (.043) p1, O97 (038) . GEMINI) 268 FOR CURRENT PRICES PHONE HARLOW (0279) 29644Signetics Outline Drawings 1.40 ,066) _ 1.14 (046) 16 {18.37 L006) 1.74 (048) is (028) 14,60 (.575) 3.061.720) lL. _ a ebe ce ete! 258 (.100) oh 12,06 (475) | 12.70 (500) MIN Trey ' i 5:33 (.244 ) po T 483 (1%) : * TO TESS =p. ff. 2.79 (.110} as +b) 6.401.250) * 2.28 (1086) a MAX 3.88 (145) DIA - 64 (025) 8 358 (141) 4.88 (.190) - 78 (,030) 406 (180) 4 78 ()REF |* - 1.40 (.055) =X _t. 1,40 (,055) = asi | feta (as) = ae ASF 1 LETT SEATING PLANE + 92 a5) 45 (118) 2.47 (085) -30 (3392) 19 5.21 (.205) DIA. 4.44 (.175) 7 5.331210) 4.32 (170) SEATING PLANE ole JUU 12.7 {.500) MIN. 3 LEADS Qo > ee | 1 0 [ 48 (.019) 41 (.016) & ss] 3.43 (136) MIN 2.67 (.105) 2.41 (.095) INPUT \ 1.40 (.055) - Log 140 {-055) po 1 1.14 (.045) | ( 014 270 955 250 419.165) __ aici) A INDICATING MARK PIN u 2 9 Le o9e a | 2.67 (.105) 2.67 (.106} 4,44 (.080) 2.03 (.080} PLEASE QUOTE STOCK NO. AND MANUFACTURERS PART NO. WHEN ORDERING ITT ain 269Signetics Outline Drawings Leap no. + [12] 43481530) 72.95 (510) _ _ ah. 20 eT | Lela Hog ik sig sie |eig sie EEE TIE FE _ - 4 t _ ie - a8 - (11g) 0.76 090} 0.31 (.012) 0.20 (.008) $438 12535} 62.26 (2.475) [ We 4.45 (175) B84 AZS) 2I9iTI) 2.29 (.090) Wy fa LEAD NO. 1 8.40 (.252) O O 23 8.S8.3934 0-124/8B3-6A eo 7 e 6.22 (245) | t aT 7.87 {.3101 7 4.110} 090} 3B (OTE1__| 2.78 229 0.53 {.021) o t ' 4.32 (062) 1.12 {.044) a B38 3 Ses S85 ttt ven wae Y NQ2DOel 1 4Omax. 5-3mex, 12-7 min. 0-43 10 1-08 264 6-55 Connections 3 -esunax SNOeeS wrwtwwT <e0aws OF ti, FOR CURRENT PRICES PHONE HARLOW (0279) 29644