Texas Instruments TL082BCD

Overview

TL082BCD from Texas Instruments is a dual JFET-input operational amplifier designed for precision analog signal conditioning in industrial and audio systems. It delivers 20 V/μs slew rate, ±1 mV input offset voltage (typ), 5.25 MHz gain-bandwidth product, and operates from ±2.25 V to ±20 V supplies. Its rail-to-rail input common-mode range extending to V_CC+ enables high-side sensing in battery test equipment and UPS control loops.

For engineers reviewing the TL082BCD datasheet, TL082BCD pinout, TL082BCD application, or TL082BCD equivalent, key selection criteria include its FET-input low bias current (±1 pA typ), low 37 nV/√Hz input voltage noise at 1 kHz, output short-circuit protection, and SOIC-8 package compatibility with legacy TL082 designs requiring stable DC performance and wide supply flexibility.

Technical Context

The TL082BCD uses a dual JFET-input differential pair architecture with high-impedance inputs (6 TΩ common-mode resistance) and internal frequency compensation for unity-gain stability. Its input stage supports common-mode voltages up to V_CC+, enabling direct interface with high-side current-sense resistors without level-shifting circuitry.

It features integrated EMI/RF filters and 1.5 kV HBM ESD protection, allowing operation across –40°C to 85°C ambient. The device maintains 118 dB open-loop gain and 100 dB CMRR over temperature while delivering 0.63 μs settling time to 0.1% for 10 V steps - critical for fast transient response in motor drive feedback paths.

Key Specifications

Pinout & Package

TL082BCD is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package, surface-mount compatible with standard 1.27 mm pitch PCB assembly processes. Thermal resistance R_θJA is 147.8°C/W, supporting continuous operation at ambient temperatures up to 85°C with minimal heatsinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual JFET-input op-amp applications.

Compared with TL082CDR and OPA2134PA, the TL082BCD uniquely balances industrial-grade temperature range, integrated EMI immunity, output protection, and low-cost JFET input performance - making it optimal for ruggedized UPS and solar inverter signal chains where reliability and noise resilience are prioritized over ultimate audio fidelity.

Availability

TL082BCD is available at Aetrix Electronics and suitable for solar inverter string monitoring, AC motor drive current sensing, and single-phase online UPS regulation requiring stable component supply across extended temperature and high-noise environments.

Supply support for TL082BCD includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 90 years of innovation in precision amplifiers and power management ICs.

The TL082BCD belongs to TI's legacy TL08xx FET-input op-amp family, engineered for cost-sensitive industrial and audio applications demanding high input impedance, wide supply range, and robust ESD/EMI performance.

FAQ

What is the maximum supply voltage for TL082BCD?

The TL082BCD supports a total supply voltage range of ±2.25 V to ±20 V (4.5 V to 40 V), with absolute maximum ratings up to 42 V for non-NS/PS packages. Operation beyond ±20 V risks exceeding recommended conditions and may degrade long-term reliability or increase input offset drift.

Does TL082BCD have rail-to-rail input capability?

Yes, the TL082BCD features a common-mode input voltage range that extends to V_CC+, enabling true high-side sensing without external level-shifting circuitry. However, its output swing is not rail-to-rail - it exhibits ~115 mV positive and ~105 mV negative headroom at 40 V supply into 10 kΩ.

What is the typical input bias current of TL082BCD?

The TL082BCD has a typical input bias current of ±1 pA at 25°C, measured in DCK and DBV packages. For SOIC-8 (TL082BCD), the value remains consistent per datasheet characterization, enabling use with high-impedance sources such as photodiodes or piezoelectric sensors without significant loading error.

Can TL082BCD drive capacitive loads?

Yes, the TL082BCD can safely drive up to 300 pF capacitive loads without oscillation, as specified in its electrical characteristics. For loads >20 pF, phase margin drops below 56°, so external isolation resistors (e.g., 10–100 Ω in series with the output) are recommended to maintain stability in high-frequency filter or cable-driving applications.

Is TL082BCD pin-compatible with other TL082 variants?

Yes, TL082BCD uses the industry-standard SOIC-8 pinout defined for all TL082x devices (e.g., TL082CDR, TL082IDR). Pins 1–8 map identically to OUT A, IN– A, IN+ A, V_CC–, IN+ B, IN– B, OUT B, and V_CC+, enabling drop-in replacement in existing layouts without PCB modification.