TL082CDR
TL082CDR - Dual 30V 3MHz JFET Op Amp | Texas Instruments
Texas Instruments TL082CDR is a dual JFET-input operational amplifier with a 30 V supply rating, 3 MHz gain-bandwidth product, and 13 V/us slew rate, supplied in an 8-pin SOIC package. Its two channels combine matched JFET and bipolar transistors in one monolithic IC, supporting general-purpose low-noise and high-input-impedance signal conditioning.
A JFET-input operational amplifier is a voltage-amplifier device whose input stage limits input bias current while preserving low-noise behavior. In the broader semiconductor hierarchy, the TL082 belongs to the operational-amplifier class, then analog ICs, amplifiers, and signal-chain components. Its wide supply capability makes it suitable for industrial and instrumentation circuits operating from split or single positive rails up to the manufacturer's stated 30 V limit.
The verified family description identifies the TL082 as a dual amplifier rated for 30 V operation with 3 MHz bandwidth and 13 V/us slew rate. These headline values provide enough bandwidth for audio, buffering, active filtering, sensor interfaces, and general feedback-control loops. Because the target is specified as TL082CDR, the package and order-code details should be confirmed against the Texas Instruments product page and manufacturer datasheet before production release.
The device uses JFET-input transistors followed by bipolar signal-processing circuitry, providing high input resistance and relatively low input bias current. This input architecture is useful when driving high-impedance sources such as sensors, photodiodes, or measurement probes. The 3 MHz bandwidth also makes the amplifier suitable for small-signal stages rather than high-frequency, high-current, or power-amplifier applications.
Typical uses include dual-channel audio preamplification, low-leakage sensor interfaces, active filters, sample-and-hold buffers, and dual feedback-control channels. Designers should pay attention to supply bypass, output-current limits, input common-mode range, output swing, stability with capacitive loads, and the exact pinout of the 8-SOIC package. Decoupling capacitors should be placed close to the supply pins to reduce parasitic inductance and preserve low-noise behavior.
The principal design trade-off is flexibility versus precision: a general-purpose JFET input amplifier is easy to apply across many signals, but it may not match dedicated low-noise, low-offset, high-speed, or precision amplifier architectures. For replacement decisions, compare supply voltage, input bias current, offset voltage, bandwidth, slew rate, common-mode range, output swing, package pins, and required noise performance rather than relying only on the TL082 name.
This page synthesizes the verified manufacturer description, distributor listings, package information, and practical selection considerations for engineers evaluating the TL082CDR. It also identifies which electrical and compliance values require confirmation from the manufacturer datasheet rather than inference.
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