TL082 JFET Input Dual Op-Amp

Contents hide

TL082 combines two state-of-the-art linear technologies on a single monolithic integrated circuit. Each internally compensated operational amplifier has well-matched high voltage JFET input devices for low input offset voltage. The IC has a range of working conditions a wide range of working voltages and possesses direct interfacing capability with almost every PMOS, CMOS, and NMOS device.

Operational Amplifier

Operational Amplifiers are basically voltage amplifying devices designed to be used with components like capacitors and resistors. They serve as the core part of any analog device. Feedback components like capacitors and resistors are used to determine the operation of the amplifier. The amplifier can perform many different operations (resistive, capacitive, or both), giving it the name Operational Amplifier. Op-amps are linear devices that are ideal for DC amplification and are used often in signal conditioning, filtering or other mathematical operations

TL082 Pinout

TL082 Pin Configuration

Pin No	Pin Name	Description
1	OUTPUT A	Output Of Amplifier A
2	INV-INPUT A	Inverting Input Of Amplifier A
3	NON-INV-INPUT A	Non Inverting Input Of Amplifier A
4	VEE	Emitter Supply Voltage
5	NON-INV-INPUT B	Non Inverting Input Of Amplifier B
6	INV-INPUT B	Inverting Input Of Amplifier B
7	OUTPUT B	Output Of Amplifier B
8	VCC	Collector Supply Voltage

TL082 Features

Input Offset Voltage Options of 6.0 mV and 15 mV Max
Low Input Bias Current: 30 pA
Low Input Offset Current: 5.0 pA
Wide Gain Bandwidth: 4.0 MHz
High Slew Rate: 13 V/µs
Low Supply Current: 1.4 mA per Amplifier
High Input Impedance: 1012

Application

Motor drives: AC and servo drive control and
Power stage modules
Single phase online UPS
Three phase LIPS
Pro audio mixers
These devices are op amps with an internally trimmed input offset voltage and JFET input devices (BI-FET II). These JFETs have large reverse breakdown voltages from gate to source and drain eliminating the need for clamps across the inputs. Therefore, large differential input voltages can easily be accommodated without a large increase in input current. The maximum differential input voltage is independent of the supply voltages. However, neither of the input voltages should be allowed to exceed the negative supply as this will cause large currents to flow which can result in a destroyed unit.