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TL084CDT

Quad JFET-input op amp, 4MHz GBP, 16V/µs slew rate, 200pA bias current, SOIC-14

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Manufacturer Part：

TL084CDT

Package：

SOIC-14 (8.75 x 4 x 1.65 mm)

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Description

Product Overview

The TL084CDT from STMicroelectronics is a quad JFET-input operational amplifier in a 14-pin SOIC package. It features a 4 MHz gain bandwidth product, 16 V/µs slew rate, and low input bias current of 200 pA. The device operates from dual supplies of ±3 V to ±18 V or single supply of 6 V to 36 V, making it suitable for a wide range of general-purpose amplification applications.

Key Specifications

Number of Channels 4
Gain Bandwidth Product 4 MHz
Slew Rate 16 V/µs
Input Offset Voltage 10 mV (max)
Input Bias Current 200 pA
Supply Voltage Range 6 V to 36 V (±3 V to ±18 V)
Supply Current 2.5 mA (total)
Output Current 40 mA per channel
CMRR 86 dB
Operating Temperature 0°C to 70°C
Package SOIC-14

Features

  • High-impedance JFET input stage
  • Low input bias and offset currents
  • Wide common-mode voltage range (up to VCC+)
  • Internal frequency compensation
  • Output short-circuit protection
  • Latch-up free operation
  • High slew rate: 16 V/µs typical

Applications

  • Signal conditioning and filtering
  • Audio preamplifiers and mixers
  • Active filter circuits
  • Instrumentation amplifiers
  • Data acquisition systems

The TL084CDT is a high-speed JFET-input quad operational amplifier from STMicroelectronics, fabricated using BiFET technology that combines matched high-voltage JFET and bipolar transistors on a single monolithic chip. Each of the four independent amplifiers features low input bias and offset currents, high input impedance, and a high slew rate of 16 V/µs. The JFET input stage allows the common-mode voltage range to extend up to the positive supply rail, enabling use in single-supply applications. The device is internally frequency compensated for unity-gain stability and includes output short-circuit protection.

Each amplifier channel in the TL084CDT consists of a JFET differential input pair that provides high input impedance and low bias current. The input stage feeds a bipolar gain stage that achieves the 4 MHz gain-bandwidth product. Internal Miller compensation capacitors ensure unity-gain stability without external components. The output stage is a class AB push-pull configuration capable of sourcing or sinking 40 mA with built-in short-circuit current limiting. The four amplifiers share common supply rails but operate independently, allowing each channel to be configured for different functions such as inverting amplification, non-inverting buffering, or active filtering.

Pin Name Type Function
1 OUT1 Output Amplifier 1 output
2 IN1- Input Amplifier 1 inverting input
3 IN1+ Input Amplifier 1 non-inverting input
4 VCC+ Power Positive supply voltage
5 IN2+ Input Amplifier 2 non-inverting input
6 IN2- Input Amplifier 2 inverting input
7 OUT2 Output Amplifier 2 output
8 OUT3 Output Amplifier 3 output
9 IN3- Input Amplifier 3 inverting input
10 IN3+ Input Amplifier 3 non-inverting input
11 VCC- Power Negative supply voltage
12 IN4+ Input Amplifier 4 non-inverting input
13 IN4- Input Amplifier 4 inverting input
14 OUT4 Output Amplifier 4 output
  • Audio signal processing and active filters
  • Industrial instrumentation and data acquisition
  • Medical monitoring equipment
  • Transducer signal conditioning
  • Analog computation and waveform generation
Manufacturer Part Number Package Notes
Texas Instruments TL084CDR SOIC-14 Pin-compatible equivalent
STMicroelectronics TL084CN PDIP-14 Through-hole version
onsemi MC34074D SOIC-14 Similar quad JFET op amp
Texas Instruments TL074CDR SOIC-14 Lower noise JFET quad op amp
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We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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