LM102/302 LM110/310 High Performance Voltage Followers IINERSIL GENERAL DESCRIPTION The LM102/LM302 and LM110/LM310 are monolithic high performance voltage followers. In buffer applications they offer substantial advantages compared with general purpose operational amplifiers: input current, bandwidth, and slew rate are all significantly improved. Applications include high speed sample and hold circuits, instrumentation amplifiers, active filters, as well as general purpose buffers. For new designs the LM110/LM310 is recommended. FEATURES @ Low Input Current 7 to 30 nA Max @ High Slew Rate 10 to 30 V/us @ Wide Bandwidth 20 MHz (LM110/LM310) Internal Frequency Compensation Interchangeable with 741 in Follower Applications PIN CONFIGURATIONS {outline dwg TO-99) @ALANCE EQUIVALENT CIRCUIT 3] ; ie - NOTE: Pin 4 connected to case bt TOP VIEW a fs (outline dwg FB) neu wv ureut 7 a . . BALANCE 2 9 [J eacance no connection [3 atu INPUT Ol 4 - a OutPuT v Q 5 6 C] BOUSTEA a9 NOTE: Pin 5 connected to bottom of package TOP VIEW ons (outline dwg JD) | 0 - vs ss ea 5) ad tx ] BoosTen eacance [3] 12} BAL ance 700 so connection [E] a] v* v wet BT [1] output oe [3] soosten o a ORDERING INFORMATION NOTE: Pin 6 connected to bottorn of package Part TO-99 10 pin 14 pin 8 pin Dice (outline dwg PA) number | . Can Flatpak CER DIP | Plastic DIP VS aavance [| "J LM102 | LM102H LM102F LM102/D Cc a ve 114 * LM110 | LM110H"! LM110F* | LM110J LM110/D weor Ff F oureur LM302 | LM302H LM302/D v 0 I} BALANCE LM310 | LM310H LM310F LM310J LM310N LM310/ *Add/883B to order number if 8838 processing is desired. 5-19LM102, LM302, LM110, LM310 ABSOLUTE MAXIMUM RATINGS INTERSIL Supply Voltage 18V Operating Temperature Range: 102, 110 ~55C to +425C Power Dissipation (Note 1) 500 mw 202, 210 ~26C to +85C \nput Voltage (Note 2) 15V 202, 310 oc to +70C Oytput Short Circuit Duration (Note 3) indefinite Storage Temperature Range ~65 C to +150C Lead Temperature (Soldering, 10 sec) 300C ELECTRICAL CHARACTERISTICS 102/202/302 (Note 4) PARAMETER CONDITIONS MIN a MAX MIN a MAX MIN We MAX UNITS Offset Voitage 2 5 3 10 5 15 mv Average Temperature Coefficient of 6 15 20 avec Offset Voltage Input Current 3 10 7 18 10 30 nA Input Resistance ro"? 10? 10"? 10"? 10 10"? 2 Voltage Gain RL > 10k 0.999 0.9996 0.999 0.9995 1.000 0.9985 0.9995 1.000 Output Resistance 08 2.5 0.8 25 08 2.5 Output Voltage Swing (Note 6) Ry 28k +10 13 +10 +10 v Supply Current 3.5 5.5 3.5 5.6 3.5 5.5 mA Positive Supply Rejection 60 60 60 dB Negative Supply Rejection 70 70 70 dB Input Capacitance 3.0 3.0 3.0 pF Offset Voltage Twin S Ta <& Tmax 75 15 20 mv input Current Ta = Tmax 3 10 5 5.0 3.0 15 nA Ta = Teun 30 100 30 50 50 nA Voltage Gain -8C < Ty < 126C 0.999 RL > 10k2, 5 Supply Current Ta = 125C 26 40 mA ELECTRICAL CHARACTERISTICS 110/210/310 (Note 5) PARAMETER CONDITIONS MIN a MAX MIN tm MAX MIN = MAX UNITS input Offset Voltage Ta = 25C 15 40 15 40 25 75 mv Input Bias Current Ta = 28C 1.0 3.0 1.0 3.0 2.0 7.0 nA Input Resistance Ta = 25C 1o' 10"? io"? 10"? 1' 10"? -2 Input Capacitance 15 Ss LS pF Large Signal Voltage Gain Ta = 25C, Vs = +15V : Vour = f10V, Ry = 8kQ 0.999 0.9999 0.999 9.9999 0.999 0.9999 VIN Output Resistance Ta = 26C 0.75 2.5 0.75 25 0.75 2.6 2 Supply Current Ta = 28C 39 5.5 39 5.5 39 55 mA Input Offset Voltage 6.0 6.0 10 mv Offset Voltage 10 10 10 nvPC Temperature Drift Input Bias Current 10 10 10 nA Large Signal Voltage Gain Vs = 215V, Vout = +10V Ry = 10kQ 0.999 0.999 0.999 viv Output Voltage Swing Vg = 215V, Ry = 1OkQ +10 t 10 +10 Vv (Note 6) Supply Current Ta = Tmax 2.0 4.0 2.0 40 mA Supply Voltage Rejection + Ratio ' t8V<SVe< +18V 70 80 70 80 70 80 dB NOTE 1: The maximum junction temperature of the 102 and 110 1s 150C, that of the 202 and 2101s 100 C, while that of the 302 and 3101s 85C. For operating at elevated temperatures, devices in the TO-S package must be derated based on a thermal resistance of 150 C/W, junction to * ambient, or 45 C/W, junction to case. For the flat package, the derating 1s based on a thermal resistance of 185 C/W when mounted on a 1/16-1nch- thick epoxy glass board with ten, 0.03-inch-wide, 2-ounce copper conductors. The thermal resistance of the dual-in-line package is 100 C/W, junc- tion to ambient. NOTE 2: For supply vottages tess than 15V, the absolute maximum input voltage 15 equal to the supply voltage NOTE 3: Continuous short circuit is allowed for case temperatures to 125C and ambient temperatures to 70C. It 1s necessary to insert a resistor greater than 2 k2 in series with the nput when the amplifier is driven from low wmpedance sources to prevent damage when the ouiput ts shorted NOTE 4: These specifications apply for Ta = 25C, Vg = 115V and Cy < 100 pF unless otherwise noted NOTE 5: These specifications apply for :5V < Vg < +18V and -55C < Ta x 125C, unless otherwise specified. With the 210, however, all tem- perature specifications are limited to -25C < Ta < 85C, while tor the 310 the timits are OC < Ta < 70C NOTE 6: Increased output swing under load can be obtained by connecting an external resistor between the booster and V~ terminals. See curve 5-20LM102, LM302, LM110, LM310 TY NORMALIZED INPUT CURRENT (Ip/tg @.25C) PICAL PERFORMANCE NORMALIZED INPUT CURRENT nN 100 MEAN SQUARE NOISE VOLTAGE (nv./H: Vs = +15V A -55 -15 25 65 TEMPERATURE (C) 105 VOLTAGE GAIN 0.99999 = 0.9999 8 2 z 5.9 Zoos e 0. ; w 9 TS 3 aw nil << g Ss 2 5 ogg 3 & > 09 100 1k 10k 100k FREQUENCY (Hz) OUTPUT RESISTANCE 100 Vs= t15V 2 WwW a 2 ws 2 10 8 & < = a 5 4 o - g 2 3 g J 1k 10k 100k 1M FREQUENCY (Hz) LARGE SIGNAL FREQUENCY RESPONSE 14 Vg = 115V 12 Tax 25C = S DISTORTION < 5% 8 = 10 z 9g 6 Z = S a => 5 6 z > a 2 4 a 3 & > 2 wn 0 100k 1M 10M FREQUENCY (H2} 1000 10 10 1 OUTPUT NOISE VOLTAGE 10 100 V5 = +15V Tas 25C tk = 10k = 100k FREQUENCY (Hz) VOLTAGE GAIN* 1001 Rg= 3k Otel Rs= 10k PHASE Rs* 3kQ Vs* t15V Ag= 30 kN Tas 25C Ik 1M 10M 1M FREQUENCY (Hz) 10M 270 225 135 45 100M SYMMETRICAL OUTPUT SWING -55 Vour = 10V Vs = 18V ~15 25 65 TEMPERATURE (C? 105 POWER SUPPLY REJECTION 1k 10k = 100k FREQUENCY (Hz) 1M 10M {saas6ap) D7 3SWHd INTERSIL LARGE SIGNAL PULSE RESPONSE = 9g = uw Ee > a E 2 5 0 1 2 3 4 TIME (us) _ VOLTAGE GAIN 0.99999 2 2 z Vg = t15V 0.9999 o . g V5 = 5 E a > 0.999 ~55 -18 25 65 105 , OUTPUT SWING {V} SUPPLY CURRENT (mA) *Note that optimum stability is obtained for a source resistance of 10 k. For source resistances tower than resistance in series with the input to ensure adequate stability margin. 5-21 TEMPERATURE (C} POSITIVE OUTPUT SWING 18 Vg = $15V Ta = 28C Ta = -BSC 10 20 30 CURRENT (mA) 40 SUPPLY CURRENT ~55 15 25 65 TEMPERATURE (C) 105 10 kQ2, it is advisable to put additionalLM102, LM302, LM110, LM310 OFFSET BALANCING p- OUTPUT APPLICATIONS SAMPLE AND HOLO Your SAMPLE/HOLD : 0.0 wF POLYSTYRENE T DEFINITION OF TERMS OFFSET VOLTAGE: The voltage at the output of the amplifier with the input at zero. OFFSET VOLTAGE TEMPERATURE DRIFT: The aver- age drift rate of.offset voltage for a thermal variation from room temperature to the indicated temperature extreme. INPUT CURRENT: The current into the input of the amplifier with the input at zero. INPUT RESISTANCE: The ratio of the rated output volt- age swing to the change in input current required to drive the output from zero to this voltage. LARGE SIGNAL VOLTAGE GAIN: The ratio of the out- put voltage swing to the change in input voltage required to drive the output from zero to this voltage. OUTPUT RESISTANCE: The ratio of the change in out- INTERSIL INCREASING NEGATIVE SWING UNDER LOAD May be added to reduce internal dissipation. INSTRUMENTATION AMPLIFIER R2 Ra 1K 100K O% 0.1% 2 6 Inputs P BALANCE p OUTPUT 3 + 6 ANA AA R3 RBS 1 1K 10K = 0.1% 0.1% put voltage to the change in output current with constant input voltage. OUTPUT VOLTAGE SWING: The peak output voltage swing, referred to zero, that can be obtained without the large-signal voltage gain falling below the minimum specified value. SUPPLY CURRENT: The current required frorn the power supply to operate the amplifier, with no load, anywhere within its linear range. POWER SUPPLY REJECTION: The ratio of the change in input offset voltage to the change in power supply voltage producing it. SLEW RATE: The internally-limited rate of change in Output voltage with a large-amplitude step function applied to the input.