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TL082BCDT

Dual JFET op amp, 3MHz GBW, 16V/us SR, 3mV Vos, SOIC-8

9800

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Manufacturer Part：

TL082BCDT

Package：

8-Pin SOIC (4.9 x 3.9 x 1.27 mm)

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Description

Product Overview

The TL082BCDT is a STMicroelectronics B-grade dual JFET-input operational amplifier with high slew rate (16V/us), 3MHz gain bandwidth, and wide common-mode range. It features low input bias current, internal frequency compensation, and output short-circuit protection. Packaged in SOIC-8, -40C to +85C (C-grade).

Key Specifications

Channels 2 (dual)
GBW 3 MHz
Slew Rate 16 V/us
Input Type JFET
VOS (max) 3 mV (B grade)
Supply Range +/-3.5V to +/-18V

Features

  • JFET input stage for high impedance
  • 16V/us high slew rate
  • 3MHz gain bandwidth product
  • Wide common-mode voltage range
  • Low input bias and offset current
  • Internal frequency compensation
  • Output short-circuit protection

Applications

  • High-impedance sensor amplifiers
  • Audio preamplifiers and filters
  • Sample-and-hold circuits
  • Integrator and differentiator

The TL082BCDT is a STMicroelectronics B-grade dual JFET-input operational amplifier offering high speed and high input impedance. The JFET input stage provides very low input bias current (typically 30pA), making it suitable for high-impedance sensor interfaces and sample-and-hold circuits. The 16V/us slew rate and 3MHz gain bandwidth support audio-frequency and medium-speed applications. The B-grade provides 3mV maximum offset voltage, while the C-grade specifies -40C to +85C operation. The wide common-mode voltage range extends to VCC+, and the output includes short-circuit protection. Internal frequency compensation ensures stability without external components. The device operates from +/-3.5V to +/-18V dual supplies in an industry-standard SOIC-8 package.

The TL082 uses a JFET-input differential pair for the input stage, providing extremely high input impedance (typically 10^12 ohms) and very low input bias current. The JFET inputs are followed by a bipolar gain stage and a class AB output stage with short-circuit protection. The JFET input stage also provides the wide common-mode voltage range, extending to the positive supply rail. The 16V/us slew rate results from the JFET input stage tail current charging the internal compensation capacitor. Internal compensation (dominant pole at approximately 10Hz) ensures unconditional stability in unity-gain configurations. The B-grade indicates trimmed offset voltage (3mV max) for improved DC precision.

Pin Mnemonic Description
1 OUT A Output A
2 -IN A Inverting input A
3 +IN A Non-inverting input A
4 V- Negative supply
5 +IN B Non-inverting input B
6 -IN B Inverting input B
7 OUT B Output B
8 V+ Positive supply
  • High-impedance pH and photodiode sensor amplifiers with JFET input
  • Audio preamplifiers and active filters with 16V/us slew rate and 3MHz GBW
  • Sample-and-hold circuits with low input bias current
  • Analog integrators and differentiators in industrial control
Model Manufacturer Key Difference
TL082ACDT ST A-grade, 6mV Vos
TL082IDT ST Industrial temp -40 to 125C
TL072 TI Lower noise JFET dual
LF353 TI Similar JFET dual
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