118 218 318 Precision High-Speed Operational Amplifiers GENERAL DESCRIPTION The LM1718, LM218, and LM318 are precision operational amplifiers which offer fast slewing and wide bandwidth. They feature internal frequency compensation and ten times the speed of general purpose amplifiers. External feedforward compensation may be used for an addi- tional increase in speed. For inverting applications this will increase the slew rate to more than 150V/us and almost double the bandwidth. (Feedforward is not used for non-inverting or differential applications.) Their high speed and fast settling time make them ideal devices for A/D converters, oscillators, active filters, sammple-and-hold circuits, as well as general purpose amplifiers. The LM118 military version operates over a temperature range of ~55C to +125C. The LM218 is the same as the LM118 except its performance is guaranteed from 25C to +85C. The LM318 operates from 0C to +70C, SCHEMATIC DIAGRAM DESIGN FEATURES 15MHz Small Signat Bandwidth Guaranteed 50V/ys Slew Rate Operates from +5V to +20V Supply Internal Frequency Compensation Input and Output Overload Protected Pin Compatible With General Purpose Op Amps + BAL/COMP 1 V" o oCOMP 2 BAL/COMPS -INPUT i T OUTPUT ae it LT +INPUT Lh Sal. CONNECTION INFORMATION FLATPAK PACKAGES. T (T0-5) DE and NB Metal Can Package Dual In-tine Packages (Top View) (Top View) PIN FUNCTION 1 BAL/COMP 1 Ch Bl] 2 iNPUT 2 3 +INPUT om, a un cree {] 5 _ BAL/COMP 3 6 OUTPUT Cy a 7 vr 8 COMP 2 Order Part Nos.: Order Part Nos.: LM118H, LM218H, LM318H LM118DE, LM218DE, LM318DE, LM318N NOTE: THE LM118/318 1S AVAILABLE ON SPECIAL ORDER IN THE DC (14-PIN) CERAMIC DIP AND CO (10-PIN}Precision High-Speed Operational Amplifiers 118 218 318 ABSOLUTE MAXIMUM RATINGS Supply Voltage... 0.02. ee eee +20V Operating Temperature Range Power Dissipation (Note 1) 2.0... eee eee 500mWw LM118 2... ee ee eee -55C to +1250C Differential Input Current (Note 2) ......-... +10mA LM218 2.0.2... ee ee ee ee ~259C to +850C Input Voltage (Note 3) 6.0.0.2... ee eee 15 LM318 2. ee eee 09C to +709C Output Short-Circuit Duration ........... Indefinite Storage Temperature Range ........ ~65C to +1500C Lead Temperature (Soldering, 10s) ......... +3000 ELECTRICAL CHARACTERISTICS _ (Note 4) PARAMETER CONDITIONS LM118/LM218 LM318 UNITS Input Offset Voltage Ta = 259C 4 10 mV Max. Input Offset Current Ta = 25C 50 200 nA Max. Input Bias Current Ta = 25C 250 500 nA Max. Input Resistance Ta = 25C 1 0.5 MQ Min. Supply Current Ta = 25C 8 10 mA Max. Large Signal Voltage Gain TA = 259C, Vg = t15V, 50 25 Vimv Min. VOUT = #10V, RL 2 2k Input Offset Voltage 6 15 mV Max. Small Signal Bandwidth Ta = 25C, Vs = +15V 15 15 MHz Typ. Slew Rate Ta = 250C, Vg= +15V, Ay = 1, 50 50 Vi/us Min. Rg = 10kQ Input Offset Current 100 300 nA Max. Input Bias Current 500 750 nA Max. Supply Current TA = TMAX 7 mA Max. Large Signal Voltage Gain Vs = 415V, VouT = 410V, 25 20 V/imV Min. RL > 2k Output Voltage Swing Vs = 16V, RL = 2kQ , 12 12 Vv Min. Input Voltage Range Vg = t15V +11.5 11.5 Vv Min. Common Mode Rejection Ratio 80 70 dB Min. Supply Voltage Rejection Ratio 70 65 dB Min. NOTES: 1. The maximum junction temperature of the LM118 is +150C, LM278 is +1G0C and +85C for the LM318. For operating at elevated tempera- tures, devices in the TO-5 package must be derated based on a thermal resistance of 150C/W, junction to ambient, or 45C/W, junction to case. 2. The inputs are shunted with shunt diodes for overvoltage protection. Therefore, excessive current will flow if a differential input voltage in excess of 1V is appliad between the inputs unless some limiting resistance is used. 3. For supply voitages less than +15, the absolute maximum input voltage is equal to the supply voltage. 4, These specifications apply for t85V < Vg < +20V and -55C < Ta < +1259C for the LM118; t5V < Vg < +20V and -209C < Ta, < +85C for the LM218; 5V < Vg < 20V and 0C Ta < +70C for the LM318. Atso, power supplies must be bypassed with 0.1 uF ceramic disc capacitors. TYPICAL APPLICATIONS Offset Balancing Fast Voltage Follower Compensation for Minimum Fast Sample and Hold Feedforward Compensation Settingt Time ter Greater inverting pF 5pF . 1OpF ve 200K "0 10K 2) 6 2 40K OUTPLT INPUT. fas INPUT. 6 a 3 *Slew and setting time to 0.1% for a 10V step change is 800ns, = SAMPLE 5K OUTPUT ww 2N4391 INPUT 25K BALANCE +Slew rate typically 150V/us 18