Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsLinear ICsLinear IC - Op-amp J-FET SO 8

June 2008 Rev 3 1/15

TL081

General purpose JFET single operational amplifiers

Features

■ Wide common-mode (up to V

) 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/µs (typ)

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.

The devices feature high slew rates, low input

bias and offset currents, and low offset voltage

temperature coefficient.

DIP8

(Plastic package)

SO-8

(Plastic micropackage)

1 - Offset null 1

2 - Inverting input

3 - Non-inverting input

4 - V

5 - Offset null 2

6 - Output

7 - V

8 - N.C.

Pin connections

(top view)

www.st.com

Summary of content (15 pages)

PAGE 1
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/µs (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
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Schematic diagram 1 TL081 Schematic diagram Figure 1. Schematic diagram V CC Non-inverting input Inverting input 100 Ω 200 Ω Output 30k 100 Ω 8.2k 1.3k 35k 1.3k 35k 100 Ω V CC Offset Null1 Figure 2.
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TL081 2 Absolute maximum ratings Absolute maximum ratings Table 1.
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Electrical characteristics TL081 3 Electrical characteristics Table 3. VCC = ±15V, Tamb = +25°C (unless otherwise specified) Symbol Parameter TL081I, AC, AI, BC, BI Min. Vio DVio Input offset voltage (Rs = 50Ω) TL081 Tamb = +25°C 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.
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TL081 Table 3. Electrical characteristics VCC = ±15V, Tamb = +25°C (unless otherwise specified) (continued) Symbol Parameter TL081I, AC, AI, BC, BI Min. Typ. Max. TL081C Unit Min. Typ. Max. tr Rise time (Tamb = +25°C) Vin = 20mV, RL = 2kΩ, CL = 100pF, unity gain 0.1 0.1 µs Kov Overshoot (Tamb = +25°C) Vin = 20mV, RL = 2kΩ, CL = 100pF, unity gain 10 10 % GBP Gain bandwidth product (Tamb = +25°C) Vin = 10mV, RL = 2kΩ, CL = 100pF, F= 100kHz 4 MHz Ri THD 2.5 4 2.
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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.
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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.
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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 kΩ VC C = 15V 88 87 86 85 84 83 -75 -50 -25 VCC = 15V A V = 10 R S = 100 Ω T amb = +25˚C 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.
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TL081 4 Parameter measurement information Parameter measurement information Figure 20. Voltage follower Figure 21.
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Typical applications 5 TL081 Typical applications Figure 22. 0.5 Hz square wave oscillator R F = 1 0 0k Ω 3.3k Ω +15V TL0 81 C F= 3.3 μF -15V 3.3k Ω f osc= Figure 23. High Q notch filter 10/15 1 2 x R F CF 1k Ω 9.
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TL081 6 Package information Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® 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.
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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.
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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.
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Ordering information 7 TL081 Ordering information Table 6.
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TL081 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.