TL081_07 STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

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: 16V/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. N DIP8 (Plastic package) D SO8 (Plastic micropackage) 1 - Offset null 1 2 - Inverting input 3 - Non-inverting input 4 - V CC 5 - Offset null 2 6 - Output 7 - V CC 8 - N.C. Pin connections (top view)

1 Schematic diagram

Figure 1. Schematic diagram Figure 2. Input offset voltage null circuit

2 Absolute maximum ratings

Table 1. Absolute maximum ratings

  1. All voltage values, except differential vo ltage, are with respect to the zero reference level (ground) of the supply voltages
  2. The magnitude of the input voltage must never exceed the magnit ude of the supply voltage or 15 volts, whichever is less.
  3. Differential voltages are the non-inverting input term inal 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.

  1. Short-circuits can c ause excessive heating and destructive dissipation.
  2. Human body model: 100pF discharged through a 1.5k Ω resistor between two pins of the device, done for all couples of pin

combinations with other pins floating.

  1. Machine model: a 200pF cap is charged to the specified voltage, then discharged directly between two pins of the device

with no external series resistor (internal resistor < 5Ω), done for all couples of pin combinations with other pins floating.

  1. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to

Table 2. Operating conditions

3 Electrical characteristics

Table 3. V CC = ±15V, Tamb = +25°C (unless otherwise specified)

200 V/mV

  1. The input bias currents are junction l eakage currents which approximately double for every 10°C increase in the junction

Table 3. V CC = ±15V, Tamb = +25°C (unless otherwise specified) (continued)

Figure 20. Voltage follower Figure 21. Gain-of-10 inverting amplifier

4 Typical applications

Figure 22. 0.5Hz square wave oscillator Figure 23. High Q notch filter

5 Package information

conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.

Figure 24. DIP8 package mechanical data

Figure 25. SO-8 package mechanical data

6 Ordering information

7 Revision history

Table 4. Order codes

  1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening

according to AEC Q001 & Q 002 or equivalent. Table 5. Document revision history 30-Apr-2001 1 Initial release. Added Table 2: Operating conditions. Added automotive grade part numbers in Table 4: Order codes.