INWERSIL FEATURES @ High.input impedance. .. 1MQ e @ Short-circuit protection @ Offset voltage null capability e @ No latch up No frequency compensation required Large common-mode and differential voltage ranges ABSOLUTE MAXIMUM RATINGS Supply Voltage Internal Power Dissipation (Note 1) Differential Input Voltage Input Voltage (Note 2) Voltage between Offset Null and V+ Storage Temperature Range Operating Temperature Range Military (740) Commercial (740C) Lead Temperature (Soldering, 60 seconds) Output Short-Circuit Duration (Note 3) ORDERING INFORMATION +22V 500mW +30V +15V +0.5V 65C to +150C 58C to +125C 0C to +70C 300C Indefinite . Temperature Range | Package | Order number wA740 FET input Operational Amplifier GENERAL DESCRIPTION The 740 is a high performance monolithic FET -Input Operational Amplifier epitaxial process. ft is intended for a wide range of analog applications where very high input impedance is required and features very low input offset current and very low input bias current. High slew rate, high common mode voitage range and absence of latch up make the 740 ideal for use as a voltage follower. The high gain and wide range of operating voltages provide superior performance in active filters, integrators, summing ampli- fiers, sample and holds, transducer amplifiers, and other general feedback applications. The 740 is short circuit protected and has the same pin configuration as the 741 operational amplifier. No external components for fre- quency compensation are required as the internal 6 dB/ octave roll-off insures stability in closed foop applications, PIN CONFIGURATIONS (outline dwg TO-99) Commercial Dice pATAOC/ID . INVERTING +NPUT Military Dice uw AT40M/D Now INVERING INPUT Commercial TO-99 uAT40HC Can Military TO-99 740HM. NOTE: Pin 4 Connected to Case. Can ve ' ' oO ? Ry R3 Ro R4 Rig Rig R20 tk 50082 K 1k 1k 30082 m OFFSET OFFSET NULL NULL O= 1 5 O4 Q0 993 K ay ? O20" 0 SR14 r 1 2398 4 wy O35 Ss S Qs _ f 32 Ra > INVERTING , a, [2 21 INPUT Ome a NON a [ OUTPUT D DU INVERTING 78 tr? INPUT bong goa R . g Rog sont: S0)F 23 [4 La 80012 Pages WA 1 5 2 ~ | Pe oi 33 4 at 13 NS ie O77 f Q34 24 O30 N Qi9 Qo, Big a 1k or I L Fo $ Rit SPia SA Rio Rig Ry FasL] $22 os sha 1.65k > 50082 > 21 005. 1 65k 3.34 33 20k > $002 * > 20K ) ) 1] 1 o 5-66 pA740 [INWERSIL 740M ELECTRICAL CHARACTERISTICS (Vg = t15V, Tc = 25C unless otherwise specified) PARAMETER CONDITIONS MIN. TYP, MAX. UNITS Input Offset Voltage Rg < 100k2 10 20 mV Input Offset Current (Note 4) 40 150 PA Input Current (either input) (Note 4} 100 200 pA input Resistance 1 MQ Large Signal Voltage Gain Ri 2 2kQ, Vout = 110V 50,000 1 Output Resistance 75 Q Output Short-Circuit Current 20 mA Common Mode Rejection Ratio 64 80 d8 Supply Voltage Rejection Ratio 70 300 uVviv Supply Current 4.2 5.2 mA Power Consumption 126 156 mw Slew Rate . 6.0 Vius Unity Gain Bandwidth 3.0 MHz | Risetime 110 ns Unan CLS 100pF, Ry = 2k2, Vin = 100mv Overshoot 10 20 % The following specifications apply for Tc = 55C to +85C: input Voltage Range +10 #12 Vv Large Signal Voltage Gain 25,000 Output Voltage Swing Ru > 10K sv 4 V RL 2 2k2 +10 13 Vv Input Offset Voltage Rg < 100k2 15 30 mV Input Offset Current Ta 58C 2 PA Ta = +88C 185 pA Input Current (either input) Ta=~88C 200 pA , Ta = +85C 25 4.0 nA VOLTAGE OFFSET TRANSIENT RESPONSE NULL CIRCUIT TEST CIRCUIT Vout RL 5-67 pA740 INTERSIL 740C ELECTRICAL CHARACTERISTICS (Vs = 15V, Tc = 25C unless otherwise specified) PARAMETER CONDITIONS MIN TYP MAX UNITS Input Offset Voltage Rs < 1OOKQ 30 110 mV Input Offset Current (Note 4) 60 300 pA Input Current (either input) (Note 4) 01 2.0 nA Input Resistance 1 MQ Large Signal Voltage Gain RL 2 2k2, Vout = 110V 20,000 1 Output Resistance 75 2 Output Short-Circuit Current 20 mA Supply Current 4.2 8.0 mA Power Consumption 126 240 mw Slew Rate 6.0 . Vius Unity Gain Bandwidth 1.0 MHz Risetime 300 ns oo CL < 100pF, Ry = 2k22, Ving = 100mV ; Overshoot 10 % The following specifications apply for 0C < Ta< +70C: Input Voltage Range ' 10 42 Vv Common Mode Rejection Ratio : 55 ; 80 dB Supply Voltage Rejection Ratio 70 500 uVvin, Large Signal Voltage Gain , 500,000 Output Voltage Swing RL = 10K v 14 Ry 2 2k2 : 210 #13 v _ Input Offset Voltage 30 mv Input Offset Current . 60 pA Input Current (either input} : V1 10 nA NOTE 1: Rating applies for ambient temperature to +70C; derate linearly at 6.3mW/C for ambient temperatures above +70C. NOTE 2: For supply voltages less than + 15V, the absolute maximum input voltage is equal to the supply voltage. NOTE 3: Short circuit may be to ground or either supply. Rating applies to +125C case temperature or +75C ambient temperature. NOTE 4: Typically doubles for every 10C increase in ambient temperature. 5-68 yA740 INTERSIL TYPICAL PERFORMANCE CURVES FOR 740 AND 740C INPUT BIAS CURRENT ASA FUNCTION OF AMBIENT OPEN LOOP VOLTAGE GAIN TEMPERATURE AS A FUNCTION OF FREQUENCY 40 = 107 Ve 18V 15 38 ae 25 & 108 Bone 30 . 28 10 Z 2.0 10! Sis 8 103 oO a 4 10 3 10? = 05 5 2 10 So 05 ' 0560250 258078100: +10 100 tk fk 100k 1M 10M Ta AMBIENT TEMPERATURE ~ C * ) FREQUENCY ~ Hz OUTPUT VOLTAGE SWING ASA INPUT NOISE VOLTAGE AS.A FUNCTION OF FREQUENCY FUNCTION OF FREQUENCY ro 12 =15V 2-15) % T, = 26C z : 25 > % yt 1 28 a az 24 2 10-14 8 8 5 16 z 1018 5 12 3 8 Zz 10-16 4 2 0 10 7 100 1k 10k 100k 1M 10 100 1k 10k TOOK . FREQUENCY - Hz { FREQUENCY ~ Hz VOLTAGE FOLLOWER LARGE OPEN LOOP PHASE RESPONSE SIGNAL PULSE RESPONSE AS A FUNCTION OF FREQUENCY 10 Vg = 18 tev TA +25 Vg i 18 Tat25C 2 a OUTPUT PHASE - DEGREES 5 OUTPUT VOLTAGE Vv o ob 8 ON A & 2 & 3 ~ 180. 1 30 100 1k 10k 100k $M 10M TIME us f FREQUENCY - He 5-69