TL082ACDR datasheet(26/78 Pages) TI2

26 / 78 page

8.2.1.3 Application Curve

-2

-1.5

-1

-0.5

0.5

1.5

0.5

1.5

Time (ms)

VIN

VOUT

Figure 8-2. Input and Output Voltages of the Inverting Amplifier

8.3 Power Supply Recommendations

CAUTION

Supply voltages larger than 36V for a single-supply or outside the range of ±18V for a dual-supply

can permanently damage the device (see Section 5.1).

Place 0.1μF bypass capacitors close to the power-supply pins to reduce errors coupling in from noisy or high

impedance power supplies. For more detailed information on bypass capacitor placement, see Section 8.4.

8.4 Layout

8.4.1 Layout Guidelines

For best operational performance of the device, use good PCB layout practices, including:

• Noise can propagate into analog circuitry through the power pins of the circuit as a whole, as well as the

operational amplifier. Bypass capacitors are used to reduce the coupled noise by providing low impedance

power sources local to the analog circuitry.

– Connect low-ESR, 0.1μF ceramic bypass capacitors between each supply pin and ground, placed as

close to the device as possible. A single bypass capacitor from V+ to ground is applicable for single-

supply applications.

• Separate grounding for analog and digital portions of circuitry is one of the simplest and most-effective

methods of noise suppression. One or more layers on multilayer PCB are typically devoted to ground planes.

A ground plane helps distribute heat and reduces EMI noise pickup. Keep digital and analog grounds

physically separate, and pay attention to the flow of the ground current.

• To reduce parasitic coupling, run the input traces as far away from the supply or output traces as possible. If

not possible to keep them separate, cross the sensitive trace perpendicular as opposed to in parallel with the

noisy trace.

• Place the external components as close to the device as possible. Keeping RF and RG close to the inverting

input minimizes parasitic capacitance, as shown in Section 8.4.2.

• Keep the length of input traces as short as possible. Always remember that the input traces are the most

sensitive part of the circuit.

• Consider a driven, low-impedance guard ring around the critical traces. A guard ring significantly helps

reduce leakage currents from nearby traces that are at different potentials.

TL081, TL081A, TL081B, TL081H

TL082, TL082A, TL082B, TL082H

TL084, TL084A, TL084B, TL084H

SLOS081O – FEBRUARY 1977 – REVISED SEPTEMBER 2025

www.ti.com

Submit Document Feedback

Product Folder Links: TL081 TL081A TL081B TL081H TL082 TL082A TL082B TL082H TL084 TL084A TL084B TL084H

TL082ACDR 数据表(PDF) 26 Page - Texas Instruments

TL082ACDR 数据表(HTML) 26 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

数据表下载