Texas Instruments TL082CDR

Overview

TL082CDR 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 typical input offset voltage, 5.25 MHz gain-bandwidth product, and operates from ±2.25 V to ±20 V supplies. Its rail-to-rail common-mode input range (including V_CC+) supports high-side sensing in solar inverter front-ends.

For engineers reviewing the TL082CDR datasheet, TL082CDR pinout, TL082CDR application, or TL082CDR equivalent, key selection criteria include low input bias current (±1 pA typ), wide supply range compatibility, EMI rejection (53 dB at 1 GHz), output short-circuit protection, and thermal stability across –40°C to 85°C operating ambient.

Technical Context

The TL082CDR implements a dual-channel, high-slew-rate JFET-input architecture with integrated EMI/RF filters and 1.5 kV HBM ESD protection. Its input stage enables common-mode voltage operation up to the positive supply rail, eliminating level-shifting requirements in single-supply sensor interfaces.

Each amplifier features independent offset voltage trimming, low 37 nV/√Hz input voltage noise at 1 kHz, and stable unity-gain operation with capacitive loads up to 300 pF-critical for driving long cables in pro-audio mixer line outputs.

Key Specifications

Pinout & Package

TL082CDR is supplied in an 8-pin SOIC (D) package with standard industry footprint and 1.27 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL082CDR, TL082IDR offers tighter offset guarantees for production test repeatability, while OPA2134PA trades higher power for superior audio-band noise performance-neither is pin-compatible, requiring layout revision for substitution.

Availability

TL082CDR is available at Aetrix Electronics and suitable for solar energy inverters, pro audio mixers, and battery test equipment requiring stable component supply across extended production cycles.

Supply support for TL082CDR 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 50 years of op-amp innovation.

The TL082CDR belongs to TI's legacy FET-input op-amp family, engineered for cost-sensitive industrial signal conditioning where JFET input impedance, speed, and robustness outweigh ultra-low-noise requirements.

FAQ

What is the maximum supply voltage for TL082CDR?

The TL082CDR supports a total supply voltage (V_CC+ – V_CC–) up to 40 V, corresponding to ±20 V dual supplies or +40 V single supply. Absolute maximum ratings specify 42 V for non-NS/PS packages, but recommended operation is limited to 40 V to ensure reliability and specified performance across temperature.

Does TL082CDR have rail-to-rail output capability?

No, TL082CDR does not feature rail-to-rail output. Its output swing is typically within 115–210 mV of the positive rail and 105–215 mV of the negative rail under 10 kΩ load. This limitation is inherent to its JFET-input, bipolar-output stage architecture and must be accounted for in headroom-critical designs like precision DAC buffers.

Can TL082CDR drive capacitive loads?

Yes, TL082CDR is characterized to drive up to 300 pF capacitive load while maintaining stability. The datasheet confirms stable unity-gain operation with CL = 20 pF, and small-signal step response remains well-behaved up to 300 pF. For loads exceeding this, external isolation resistance (e.g., 10–100 Ω in series with output) is recommended to prevent peaking or oscillation.

What is the input offset voltage drift of TL082CDR?

The TL082CDR exhibits ±2 µV/°C typical input offset voltage drift over the full –40°C to +85°C operating temperature range. This low drift ensures minimal calibration drift in battery test equipment or solar inverter monitoring circuits operating across wide ambient conditions without frequent recalibration.

Is TL082CDR suitable for single-supply operation?

Yes, TL082CDR supports true single-supply operation. Its common-mode input voltage range extends to V_CC+, allowing inputs to swing up to the positive rail-ideal for interfacing with unipolar sensors or ADC references. However, output swing remains limited near both rails, so mid-supply biasing (e.g., V_CC/2 reference) is required for AC-coupled signals.