355A

LF355-6 SYC | Alldatasheet

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»> SYC SEMICONDUCTORES Y COMPONENTES LF156A/356A/156/356 eS . _.JFET-Input Operational Amplifiers Low Supply Current (LF155) High-Speed (LF156) FEATURES DESCRIPTION = Guaranteed Offset Voltage Drift on All Grades Linear Technology’s LF155/ 156 series features several

8 Guaranteed Slew Rate on All Grades improvements compared to similar types from other man-

= Guaranteed Low Input Offset Current 10pA Max: ufacturers: offset voltage drift with temperature and slew = Guaranteed Low Input Bias Current 50pA Max. fate are guaranteed on all grades, not just on the more = Guaranteed High Slew Rate (156A/356A) 10V/ys Min. expensive ‘‘A’’ grades. Other specifications such as volt- © Fast Settling to 0.01% 1.5ys age gain and high temperature bias and offset currents are also improved. The industry standard LF155/156 devices exhibit phase reversal at the output when the negative common-mode APPLICATIONS limit at the input is exceeded (i.e., from —12V to —15V ® Output Amplifiers for D/A Converters with + 15V supplies). This can cause lock-up in servo = Fast Sample and Hold Circuits systems. As shown below, Linear Technology’s LF155/156 ® High Speed Integrators does not have this problem due to unique phase reversal ™ Photocell Amplifiers protection circuitry. For applications requiring higher per- ® High Input Impedance Buffers formance, see the LT1055 and LT1056 data sheets. Seen Voltage Follower with Input Exceeding the Negative Common-Mode Range mer * +15V -15V ‘SINE WAVE > sms/OW rov/ow ey \\_/ \\ SS

ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION Supply Voltage ORDER PART NUMBER LF155A/155/355A, TOP VIEW LF355/356 0.2... ee eee eee E1BV To; Ke) Qv Differential Input Voltage Pre LF155AH_ LF156AH Input Voltage (Note 1) LF355AH LF356AH Operating Temperature Range Maximum Junction Temperature -wEy > vt LF355AN8 LF356AN8 Storage Temperature Range Vos is adjusted with a 20k or 50k LL ELECTRICAL CHARACTERISTICS (Note 2) LF155A/156A SYMBOL | PARAMETER CONDITIONS LF355A/356A LFI55/156 LF355/356 UNITS MIN TYP MAX | MIN TYP MAX | MIN TYP MAX Voltage Over Temperature 2.5 48° Peo mv 355A/356A 23 be oat om AT Input Offset aaa euidiat Voltage eae Bebe Average TC with | per mV Vos Adjust los Input Offset T)=25°C (Note 3) : 3. 10 3. 20 pA Current Tj<125°C sss cemareeeiint ves cere Nessie atest ie: ame Peeve nA Tys70°C ar eee eee tn(s Hy le Ua URE resi total Meee Ona Ay “nA ip Input Bias 1,=25°C (Note 3) 30 50 30 100 | 30, 200 || pA Voltage Vo= + 10V, R, =2k i a Gain Over Temperature 30° 25 | 25 v/mV SSS

ELECTRICAL CHARACTERISTICS (note 2) LFI55A/156A, 55/356 SYMBOL LF355A/356A UPIES/186 UF356 UNITS MIN TYP MAX} MIN TYP) MAX| MIN TYP MAX Vo Output Vs= # 15V, R, = 10k 412 413 412 £13 #12 £13 v Voltage Vg = + 15V, RL =2k £10 412 £10 +12 £10 +12 v ‘Swing Vom Input Common-Mode | Vs= + 15V = +154 #11) +151 #10 15.1 v Voltage Range -12 -12 ~12 CMRR Common-Mode 85 100 85 100 80 100 aB Rejection Ratio PSRR Supply Voltage Vs= + 10V to + 18V 85 100 85 100 - - dB Rejection Ratio | Vs= +10V to + 15V - - 80 100 aB Is ‘Supply Current Ta= 25°C, Vo= + 15V LF155/355 Series 2 4 mA LF156/356 Series . 5 7 mA LF356A ES es == mA Ty=25°C, Vo = + 15V _ GBW Gain Bandwidth Ta= 25°C, Vg= + 15V Product LF155/355 Series MHz LF156/356 Series MHz ts Settling Time Ty = 25°C, Vg = + 15V t00.01% LF155 Series (Note 5) 4 ps LF156 Series 1.5 us ey Input Noise Ty = 25°C, Vg= + 15V Voltage f=100Hz Density LF155 Series 25 nv/Viz LF156 Series 15 av/VHz f=1000Hz . LF155 Series 20 nv/VHZ LF156 Series 12 nv/vHz in input Noise Ta= 25°C, Vg= + 15V Current f=100Hz 0.01 0.01 0.01 pA/VHz Density f=1000Hz 0.01 0.01 0.01 pA/ViHz Cw Input pF Capacitance The @ denotes the specifications which apply over the full operating Note 3: The input bias currents are junction leakage currents which temperature range. The shaded electrical specifications indicate those approximately double for every 10°C increase in the junction parameters which have been improved or guaranteed test limits provided temperature, Ti. Due to limited production test time, the input bias cur- > tor the first time. Tents measured are correlated to junction temperature. In normal opera- For MIL-STD components, please refer to LTC 883C data sheet for test tion the junction temperature rises above the ambient temperature asa listing and parameters. fesult of internal power dissipation, Pp. T}=Ta+ © ja Pp where Oy, is Note 1: Unless otherwise specified, the absolute maximum negative the thermal resistance from junction to ambient. Use of a heat sink is input voltage is equal to the negative power supply voltage. ences tf wan bias wen 's . " a tea vot ott . . jote 4: The temperature coefficient of the adjusted input offset voltage te 2: Unless oth d, these test : Nate 2: Unless otherwise stated, these test concitions apply changes only a small amount (0.5nV/°C typically) for each mV of adjust- TFIBEA/ IBA ment from its original unadjusted value. Common-mode rejection and LF355/356 open loop voltage gain are also unaffected by offset adjustment. ‘Supply Voltage, Vg } + 15V<Vg= = 20V £15VSVg< + 18V | Vg= + 15V Note 5: Settling time is defined here for a unity gain inverter connection Th 55°C sTys + 125°C | O°C<Tas+70°C | O°C<Tax+70°C using 2k@ resistors. It is the time required for the error voltage (the voltage at the inverting input pin on the amplifier) to settle to within and Vos, Ig and !gg are measured at Vey =0. 0.01% of its final value from the time a 10V step input is applied to the inverter. a es

TYPICAL PERFORMANCE CHARACTERISTICS ; Normalized Slew Rate vs Gain, Phase vs Frequency Inverter Settling Time Temperature g 100 4 TEs”. RTO A STN * 5 TW Az ll aL A ET pee | pe ee NU ear) Zant SXCeeaee SOR anh Call in Ma of SS | CCAM? = LERIISemi | «EEEEEFFE \\ etal -s ie Q 3 TN NINi rir yt rt yy ow UT TINN UT aL LUTTE Wes HEE EEE or 98 Frequency fe ° SETS THE 48) ° 7” ~ yrematne 0)” "= Supply Current vs LF156 Large Signal LF156 Small Signal Temperature Response Response POT Haka UI Tate cd Sag on eo-Li tf Pitt _ Bees) aig lo Bie isi ieee <5 -% ry 5 125 Ay= +1, C= 100pF, 1ns/DIV Ay= +1, C. = 100pF, 0.24SEC/DIV TEMPERATURE (°C) SS PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted. H Package Metal Can N8 Package 8 Lead Plastic Pr il . ft at vai ee a al vo aH —— gen amc vane ins | | ate ; tata noe ™ savcorr “LEADS WITHIN 0.007 OF TRUE POSITION (TP) AT GAUGE PLANE eee