DUAL DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS

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Morgan Pierce
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1 Order this document by /D Utilizing the circuit designs perfected for recently introduced Quad Operational Amplifiers, these dual operational amplifiers feature ) low power drain, ) a common mode input voltage range extending to ground/vee, 3) single supply or split supply operation and 4) pinouts compatible with the popular M558 dual operational amplifier. The LM58 series is equivalent to onehalf of an LM4. These amplifiers have several distinct advantages over standard operational amplifier types in single supply applications. They can operate at supply voltages as low as 3.0 V or as high as 3 V, with quiescent currents about onefifth of those associated with the M74 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage. Short ircuit Protected s True Differential Input Stage Single Supply Operation: 3.0 V to 3 V Low Input Bias urrents Internally ompensated ommon Mode ange Extends to Negative Supply Single and Split Supply Operation Similar Performance to the Popular M558 ESD lamps on the Inputs Increase uggedness of the Device without Affecting Operation DUAL DIFFEENTIAL INPUT OPEATIONAL AMPLIFIES SEMIONDUTO TEHNIAL DATA 8 N SUFFIX PLASTI PAKAGE ASE 66 8 D SUFFIX PLASTI PAKAGE ASE 75 (SO8) MAXIMUM ATINGS (TA = 5, unless otherwise noted.) ating Symbol MOTOOLA ANALOG I DEVIE DATA LM58 LM904 LM904V Power Supply Voltages Single Supply 3 6 Split Supplies, VEE ±6 ±3 Input Differential Voltage ange (Note ) Input ommon Mode Voltage ange (Note ) Unit Vdc VID ±3 ±6 Vdc VI 0.3 to to 6 Vdc Short ircuit Duration ts ontinuous Junction Temperature TJ 50 Storage Temperature ange Tstg 55 to 5 Operating Ambient Temperature ange TA LM58 5 to 85 0 to 70 LM to 05 LM904V 40 to 5 NOTES:. Split Power Supplies.. For Supply Voltages less than 3 V for the LM58/358 and 6 V for the LM904, the absolute maximum input voltage is equal to the supply voltage. Device LM904D LM904N LM904VD LM904VN LM58D LM58N D N PIN ONNETIONS A 8 7 B Inputs A 3 6 Inputs B VEE/Gnd 4 5 (Top View) ODEING INFOMATION Operating Temperature ange TA = 40 to 05 TA = 40 to 5 TA = 5 to 85 TA = 0 to 70 Package SO8 Plastic DIP SO8 Plastic DIP SO8 Plastic DIP SO8 Plastic DIP Motorola, Inc. 996 ev

2 , LM58, LM904, LM904V ELETIAL HAATEISTIS ( = 5.0 V, VEE = Gnd, TA = 5, unless otherwise noted.) LM58 LM904 LM904V haracteristic Symbol Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit Input Offset Voltage V IO V = 5.0 V to 30 V (6 V for LM904, V), V I = 0 V to V.7 V, V O.4 V, S = 0 Ω T A = T A = T high (Note ) T A = T low (Note ) Average Temperature oefficient of Input Offset Voltage T A = T high to T low (Note ) V IO / T µv/ Input Offset urrent I IO na T A = T high to T low (Note ) Input Bias urrent I IB T A = T high to T low (Note ) Average Temperature oefficient of Input Offset urrent T A = T high to T low (Note ) I IO / T pa/ Input ommon Mode Voltage ange V I (Note ),V = 30 V (6 V for LM904, V) V = 30 V (6 V for LM904, V), T A = T high to T low Differential Input Voltage ange V ID V V V V V Large Signal Open Loop Voltage Gain A L V/mV L =.0 kω, V = 5 V, For Large V O Swing, T A = T high to T low (Note ) hannel Separation S db.0 khz f 0 khz, Input eferenced ommon Mode ejection M db S 0 kω Power Supply ejection PS db VoltageHigh Limit (T A = T high to V OH T low ) (Note ) V = 5.0 V, L =.0 kω, T A = V = 30 V (6 V for LM904, V), 6 6 L =.0 kω V = 30 V (6 V for LM904, V), L = 0 kω VoltageLow Limit V OL mv V = 5.0 V, L = 0 kω, T A = T high to T low (Note ) Source urrent I O ma V ID =.0 V, V = 5 V Sink urrent I O V ID =.0 V, V = 5 V ma V ID =.0 V, V O = 00 mv µa Short ircuit to Ground (Note 3) I S ma mv V V Power Supply urrent (T A = T high to T low ) I (Note ) V = 30 V (6 V for LM904, V), V O = 0 V, L = V = 5 V, V O = 0 V, L = ma NOTES:. T low = 40 for LM904 T high = 05 for LM904 = 40 for LM904V = 5 for LM904V = 5 for LM58 = 85 for LM58 = 0 for = 70 for. The input common mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common mode voltage range is V.7 V. 3. Short circuits from the output to V can cause excessive heating and eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers. MOTOOLA ANALOG I DEVIE DATA

3 , LM58, LM904, LM904V Single Supply Split Supplies 3.0 V to (max).5 V to (max) VEE/Gnd VEE.5 V to VEE(max) epresentative Schematic Diagram (OneHalf of ircuit Shown) Bias ircuitry ommon to Both Amplifiers Q6 Q5 Q4 Q Q3 Q9 40 k 5.0 pf Q Q4 5 Q3 Q8 Q0 Inputs Q Q7 Q3 Q4 Q Q5 Q6 Q6 Q7 Q8 Q9 Q Q0 Q.0 k Q5.4 k VEE/Gnd IUIT DESIPTION The LM58 series is made using two internally compensated, twostage operational amplifiers. The first stage of each consists of differential input devices Q0 and Q8 with input buffer transistors Q and Q7 and the differential to single ended converter Q3 and Q4. The first stage performs not only the first stage gain function but also performs the level shifting and transconductance reduction functions. By reducing the transconductance, a smaller compensation capacitor (only 5.0 pf) can be employed, thus saving chip area. The transconductance reduction is accomplished by splitting the collectors of Q0 and Q8. Another feature of this input stage is that the input common mode range can include the negative supply or ground, in single supply operation, without saturating either the input devices or the differential to singleended converter. The second stage consists of a standard current source load amplifier stage. Each amplifier is biased from an internalvoltage regulator which has a low temperature coefficient thus giving each amplifier good temperature characteristics as well as excellent power supply rejection..0 V/DIV Large Signal Voltage Follower esponse 5.0 µs/div = 5 Vdc L =.0 kω TA = 5 MOTOOLA ANALOG I DEVIE DATA 3

4 I, LM58, LM904, LM904V Figure. Input Voltage ange Figure. LargeSignal Open Loop Voltage Gain V, INPUT LTAGE (V) Negative 8.0 Positive A L, OPEN LOOP LTAGE GAIN (db) = 5 V VEE = Gnd TA = k 0 k 00 k.0 M /VEE, POWE SUPPLY LTAGES (V) f, FEQUENY (Hz) Figure 3. LargeSignal Frequency esponse Figure 4. Small Signal Voltage Follower Pulse esponse (Noninverting) V O, OUTPUT LTAGE ANGE (V pp ) L =.0 kω = 5 V VEE = Gnd Gain = 00 I =.0 kω F = 00 kω V O, OUTPUT LTAGE (mv) Input = 30 V VEE = Gnd TA = 5 L = 50 pf f, FEQUENY (khz) t, TIME (ms) Figure 5. Power Supply urrent versus Power Supply Voltage Figure 6. Input Bias urrent versus Supply Voltage.4 I, POWE SUPPLY UENT (ma) TA = 5 L = I IB, INPUT BIAS UENT (na) , POWE SUPPLY LTAGE (V) , POWE SUPPLY LTAGE (V) 4 MOTOOLA ANALOG I DEVIE DATA

5 , LM58, LM904, LM904V Figure 7. Voltage eference Figure 8. Wien Bridge Oscillator 50 k M403.5 V / =.5 V ( ) = 0 k 5.0 k / fo = π For: fo =.0 khz = 6 kω = 0.0 µf Figure 9. High Impedance Differential Amplifier Figure 0. omparator with Hysteresis e / H Hysteresis e a b / / eo Vin / L VinL = VinH = (L ) (H ) VinL VinH eo = ( a b) (e e) H = (H L) Figure. BiQuad Filter Vin 00 k / / 00 k / Bandpass 3 / Where: fo = π = Q = TBP 3 = TN = 0 For: fo =.0 khz Q = 0 TBP = TN = Notch TBP = enter Frequency Gain TN = Passband Notch Gain = = 60 kω = 0.00 µf =.6 MΩ =.6 MΩ 3 =.6 MΩ MOTOOLA ANALOG I DEVIE DATA 5

6 , LM58, LM904, LM904V Figure. Function Generator Figure 3. Multiple Feedback Bandpass Filter = / Triangle Wave f 75 k 3 00 k 300 k / Square Wave Vin 3 / O O = 0 = f = 4 f if, 3 = Given: fo = center frequency A(fo) = gain at center frequency hoose value fo, Then: 3 = Q π fo 3 = A(f o) 3 = 4Q 3 For less than 0% error from operational amplifier. Where fo and BW are expressed in Hz. Qo fo BW < 0. If source impedance varies, filter may be preceded with voltage follower buffer to stabilize filter parameters. 6 MOTOOLA ANALOG I DEVIE DATA

7 , LM58, LM904, LM904V OUTLINE DIMENSIONS 8 5 B N SUFFIX PLASTI PAKAGE ASE 6605 ISSUE K NOTES:. DIMENSION L TO ENTE OF LEAD WHEN FOMED PAALLEL.. PAKAGE ONTOU OPTIONAL (OUND O SQUAE ONES). 3. DIMENSIONING AND TOLEANING PE ANSI Y4.5M, 98. NOTE T SEATING PLANE H 4 F A L J N M D K G 0.3 (0.005) M T A M B M MILLIMETES INHES DIM MIN MAX MIN MAX A B D F G.54 BS 0.00 BS H J K L 7.6 BS BS M 0 0 N D SUFFIX PLASTI PAKAGE ASE 7505 (SO8) ISSUE A E B A 8 e D B 5 4 H A 0.5 M B S A S 0.5 M B M SEATING PLANE 0.0 h X 45 L NOTES:. DIMENSIONING AND TOLEANING PE ASME Y4.5M, DIMENSIONS AE IN MILLIMETES. 3. DIMENSION D AND E DO NOT INLUDE MOLD POTUSION. 4. MAXIMUM MOLD POTUSION 0.5 PE SIDE. 5. DIMENSION B DOES NOT INLUDE MOLD POTUSION. ALLOWABLE DAMBA POTUSION SHALL BE 0.7 TOTAL IN EXESS OF THE B DIMENSION AT MAXIMUM MATEIAL ONDITION. MILLIMETES DIM MIN MAX A A B D E e.7 BS H h L MOTOOLA ANALOG I DEVIE DATA 7

8 , LM58, LM904, LM904V Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUOPE / Locations Not Listed: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.; TatsumiSPDJLD, 6F SeibuButsuryuenter, P.O. Box 09; Phoenix, Arizona or Tatsumi KotoKu, Tokyo 35, Japan MFAX: MFAX0@ .sps.mot.com TOUHTONE ASIA/PAIFI: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, INTENET: 5 Ting Kok oad, Tai Po, N.T., Hong Kong MOTOOLA ANALOG I DEVIE /D DATA

QUAD DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS

QUAD DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS Order this document by /D The series are lowcost, quad operational amplifiers with true differential inputs. They have several distinct advantages over standard operational amplifier types in single supply