TL081 General purpose JFET single operational amplifiers Features Wide common-mode (up to VCC+) and differential voltage range Low input bias and offset current Output short-circuit protection High input impedance JFET input stage Internal frequency compensation Latch-up free operation High slew rate: 16 V/s (typ) N DIP8 (Plastic package) D SO-8 (Plastic micropackage) Description The TL081, TL081A and TL081B are high-speed JFET input single operational amplifiers incorporating well matched, high-voltage JFET and bipolar transistors in a monolithic integrated circuit. Pin connections (top view) The devices feature high slew rates, low input bias and offset currents, and low offset voltage temperature coefficient. 1 - Offset null 1 2 - Inverting input 3 - Non-inverting input 4 - VCC5 - Offset null 2 6 - Output 7 - VCC+ 8 - N.C. June 2008 Rev 3 1/15 www.st.com 15 Schematic diagram 1 TL081 Schematic diagram Figure 1. Schematic diagram V CC Non-inverting input Inverting input 100 200 Output 30k 100 8.2k 1.3k 35k 1.3k 35k 100 V CC Offset Null1 Figure 2. Offset Null2 Input offset voltage null circuit TL081 N2 N1 100k V CC 2/15 TL081 2 Absolute maximum ratings Absolute maximum ratings Table 1. Absolute maximum ratings Symbol VCC Vin Parameter Supply voltage (1) Input voltage (2) Vid Differential input voltage Ptot Power dissipation TL081C, AC, BC TL081I, AI, BI (3) Output short-circuit duration (4) Unit 18 V 15 V 30 V 680 mW Infinite Tstg Storage temperature range Rthja Thermal resistance junction to ambient(5) (6) SO-8 DIP8 125 85 Rthjc Thermal resistance junction to case(5) (6) SO-8 DIP8 40 41 C/W HBM: human body model(7) 500 V 200 V 1.5 kV ESD -65 to +150 MM: machine model(8) (9) CDM: charged device model C C/W 1. All voltage values, except differential voltage, are with respect to the zero reference level (ground) of the supply voltages where the zero reference level is the midpoint between VCC+ and VCC-. 2. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 volts, whichever is less. 3. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 4. The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensure that the dissipation rating is not exceeded. 5. Short-circuits can cause excessive heating and destructive dissipation. 6. Rth are typical values. 7. Human body model: 100 pF discharged through a 1.5k resistor between two pins of the device, done for all couples of pin combinations with other pins floating. 8. Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 ), done for all couples of pin combinations with other pins floating. 9. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to the ground. Table 2. Symbol Operating conditions Parameter VCC Supply voltage range Toper Operating free-air temperature range TL081I, AI, BI TL081C, AC, BC 6 to 36 -40 to +105 Unit V 0 to +70 C 3/15 Electrical characteristics TL081 3 Electrical characteristics Table 3. VCC = 15V, Tamb = +25C (unless otherwise specified) Symbol Parameter TL081I, AC, AI, BC, BI Min. Vio DVio Input offset voltage (Rs = 50) TL081 Tamb = +25C TL081A TL081B Tmin Tamb Tmax TL081 TL081A TL081B Input offset voltage drift Typ. Max. 3 3 1 10 6 3 13 7 5 TL081C Unit Min. Typ. Max. 3 10 mV 13 10 10 V/C (1) Iio Input offset current Tamb = +25C Tmin Tamb Tmax 5 100 4 5 100 10 pA nA Iib Input bias current (1) Tamb = +25C Tmin Tamb Tmax 20 200 20 20 400 20 nA Avd Large signal voltage gain (RL = 2k, Vo = 10V) Tamb = +25C Tmin Tamb Tmax 50 25 200 25 15 200 V/mV SVR Supply voltage rejection ratio (RS = 50) Tamb = +25C Tmin Tamb Tmax 80 80 86 70 70 86 dB ICC Supply current, no load Tamb = +25C Tmin Tamb Tmax Vicm Input common mode voltage range CMR Common mode rejection ratio (RS = 50) Tamb = +25C Tmin Tamb Tmax 80 80 86 Output short-circuit current Tamb = +25C Tmin Tamb Tmax 10 10 40 10 12 10 12 8 Ios Vopp SR 4/15 Output voltage swing Tamb = +25C Tmin Tamb Tmax 1.4 RL = 2k RL = 10k RL = 2k RL = 10k Slew rate (Tamb = +25C) Vin = 10V, RL = 2k, CL = 100pF, unity gain 11 2.5 2.5 +15 -12 1.4 2.5 2.5 mA +15 -12 V 70 70 86 dB 10 10 40 12 13.5 10 12 10 12 12 13.5 V 16 8 16 V/s 11 60 60 60 60 mA TL081 Table 3. Electrical characteristics VCC = 15V, Tamb = +25C (unless otherwise specified) (continued) Symbol Parameter TL081I, AC, AI, BC, BI Min. Typ. Max. TL081C Unit Min. Typ. Max. tr Rise time (Tamb = +25C) Vin = 20mV, RL = 2k, CL = 100pF, unity gain 0.1 0.1 s Kov Overshoot (Tamb = +25C) Vin = 20mV, RL = 2k, CL = 100pF, unity gain 10 10 % GBP Gain bandwidth product (Tamb = +25C) Vin = 10mV, RL = 2k, CL = 100pF, F= 100kHz 4 MHz Ri THD 2.5 4 2.5 Input resistance 1012 1012 Total harmonic distortion (Tamb = +25C), F= 1kHz, RL = 2k,CL = 100pF, Av = 20dB, Vo = 2Vpp 0.01 0.01 % en Equivalent input noise voltage RS = 100, F= 1kHz 15 15 nV -----------Hz m Phase margin 45 45 degrees 1. The input bias currents are junction leakage currents which approximately double for every 10C increase in the junction temperature. 5/15 Electrical characteristics TL081 Maximum peak-to-peak output voltage versus frequency Figure 4. Maximum peak-to-peak output voltage versus frequency Figure 5. Maximum peak-to-peak output voltage versus frequency Figure 6. Maximum peak-to-peak output voltage versus free air temperature Figure 7. Maximum peak-to-peak output voltage versus load resistance Figure 8. Maximum peak-to-peak output voltage versus supply voltage MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (V) Figure 3. 6/15 30 25 RL = 10 k Tamb = +25C 20 15 10 5 0 2 4 6 8 10 12 SUPPLY VOLTAGE ( V) 14 16 TL081 Electrical characteristics Figure 9. Input bias current versus free air temperature Figure 10. Large signal differential voltage amplification versus free air temp 100 1000 15V DIFFERENTIAL VOLTAGE AMPLIFICATION (V/V) INPUT BIAS CURRENT (nA) V CC = 10 1 0.1 0.01 -50 400 200 100 40 20 10 4 2 1 -25 0 25 50 75 100 V CC = 15V V O = 10V 125 R L = 2k -75 -50 TEMPERATURE (C) 180 10 90 R = 2kW L C L = 100pF V CC = 15V T amb = +125C 1 100 1K 10K 0 100K 25 50 75 125 100 Figure 12. Total power dissipation versus free air temperature 1M 10M TOTAL POWER DISSIPATION (mW) DIFFERENTIAL VOLTAGE AMPLIFICATION (V/V) DIFFERENTIAL VOLTAGE AMPLIFICATION (left scale) PHASE SHIFT (right scale) 0 TEMPERATURE (C) Figure 11. Large signal differential voltage amplification and phase shift versus frequency 100 -25 250 225 200 175 150 125 100 75 50 25 0 V CC = 15V No signal No load -75 -50 FREQUENCY (Hz) -25 0 25 50 75 100 125 TEMPERATURE (C) 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) Figure 13. Supply current per amplifier versus Figure 14. Supply current per amplifier versus free air temperature supply voltage V CC = 15V No signal No load -75 -50 -25 0 25 50 TEMPERATURE (C) 75 100 125 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 Tamb = +25C No signal No load 2 4 6 10 12 14 8 SUPPLY VOLTAGE ( V) 16 7/15 Electrical characteristics TL081 Figure 15. Common mode rejection ratio versus free air temperature Figure 16. Equivalent input noise voltage versus frequency 70 R L = 10 k VC C = 15V 88 87 86 85 84 83 -75 -50 -25 VCC = 15V A V = 10 R S = 100 T amb = +25C 60 EQUIVALENT INPUT NOISE VOLTAGE (nV/VHz) COMMON MODE MODE REJECTION RATIO (dB) 89 0 25 50 75 100 50 40 30 20 10 0 125 10 40 TEMPERATURE (C) 100 400 1k 4k 10k 40k 100k FREQUENCY (Hz) Figure 17. Output voltage versus elapsed time Figure 18. Total harmonic distortion versus frequency 1 24 OVERSHOOT 20 90% 16 12 8 V 4 10% 0 tr -4 0 0.1 CC = 15V R L = 2k Tamb = +25C 0.2 0.3 0.4 0.5 0.6 0.7 TIME (s) INPUT AND OUTPUT VOLTAGES (V) 6 OUTPUT INPUT 2 0 VCC= -2 -6 15V R L = 2 kW C L= 100pF Tamb = +25C -4 0 0.5 1 1.5 2 TIME (ms) 8/15 V VCC = = 15V 15V CC A AV V= =1 1 V VO O(rms) = =6V6V (rms) 0.4 0.1 0.04 T amb +25C T amb= =+25C 0.01 0.004 0.001 100 400 1k 4k 10k FREQUENCY (Hz) Figure 19. Voltage follower large signal pulse response 4 TOTAL HARMONIC DISTORTION (%) OUTPUT VOLTAGE (mV) 28 2.5 3 3.5 40k 100k TL081 4 Parameter measurement information Parameter measurement information Figure 20. Voltage follower Figure 21. Gain-of-10 inverting amplifier 10k 1k eI eo TL081 RL C L = 100pF 9/15 Typical applications 5 TL081 Typical applications Figure 22. 0.5 Hz square wave oscillator R F = 1 0 0k 3.3k +15V TL0 81 C F= 3.3 F -15V 3.3k f osc= Figure 23. High Q notch filter 10/15 1 2 x R F CF 1k 9.1k TL081 6 Package information Package information In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 11/15 Package information 6.1 TL081 DIP 8 package information Figure 24. DIP8 package mechanical drawing Table 4. DIP8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 5.33 Max. 0.210 A1 0.38 0.015 A2 2.92 3.30 4.95 0.115 0.130 0.195 b 0.36 0.46 0.56 0.014 0.018 0.022 b2 1.14 1.52 1.78 0.045 0.060 0.070 c 0.20 0.25 0.36 0.008 0.010 0.014 D 9.02 9.27 10.16 0.355 0.365 0.400 E 7.62 7.87 8.26 0.300 0.310 0.325 E1 6.10 6.35 7.11 0.240 0.250 0.280 e 2.54 0.100 eA 7.62 0.300 eB L 12/15 Inches 10.92 2.92 3.30 3.81 0.430 0.115 0.130 0.150 TL081 6.2 Package information SO-8 package information Figure 25. SO-8 package mechanical drawing Table 5. SO-8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.75 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.25 Max. 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k 1 8 1 8 ccc 0.10 0.004 13/15 Ordering information 7 TL081 Ordering information Table 6. Order codes Order code Temperature range Package Packing Marking DIP8 Tube TL081IN TL081AIN TL081BIN SO-8 Tube or tape & reel 081I 081AI 081BI SO-8 (Automotive grade) Tube or tape & reel 081IY 081AIY 081BIY DIP8 Tube TL081CN TL081ACN TL081BCN SO-8 Tube or tape & reel 081C 081AC 081BC TL081IN TL081AIN TL081BIN TL081ID/IDT TL081AID/AIDT TL081BID/BIDT -40C, +105C TL081IYD/DT(1) TL081AIYD/DT(1) TL081BIYD/DT(1) TL081CN TL081ACN TL081BCN 0C, +70C TL081CD/CDT TL081ACD/ACDT TL081BCD/BCDT 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going. 8 Revision history Table 7. Document revision history Date Revision 30-Apr-2001 1 Initial release. 2 Added values for Rthja and Rthjc in Table 1: Absolute maximum ratings. Added Table 2: Operating conditions. Added automotive grade part numbers in Table 6: Order codes. Format update. 3 Removed information concerning military temperature range (TL081Mx, TL081AMx, TL081BMx). Added missing order codes for automotive grade products and updated footnote in Table 6: Order codes. 27-Jul-2007 27-Jun-2008 14/15 Changes TL081 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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