Texas Instruments OPA2614IDTJ

Overview

OPA2614IDTJ from Texas Instruments is a dual, high-speed, voltage-feedback operational amplifier optimized for xDSL differential line driving and precision baseband I/Q amplification. It delivers 1.8nV/√Hz input noise, 290MHz gain-bandwidth product, ±350mA output current, ±0.2mV input offset voltage, and operates from ±2.5V to ±6V or +5V to +12V supplies - enabling robust twisted-pair line driving with <−80dBc harmonic distortion at 1MHz.

For engineers reviewing the OPA2614IDTJ datasheet, OPA2614IDTJ pinout, OPA2614IDTJ application, or OPA2614IDTJ equivalent, this page provides verified circuit role (differential line driver / ADC driver), package mapping (SO-8), validated pin functions, real-world distortion vs. load data, and two confirmed alternative parts with documented technical and application differences.

Technical Context

The OPA2614IDTJ uses a wideband voltage-feedback architecture with a linearized high-current output stage that minimizes crossover distortion during bipolar current transitions. Its biasing is supply-voltage independent, supporting stable operation across ±2.5V to ±6V and single +5V to +12V rails.

It achieves 42MHz large-signal bandwidth (2VPP into 100Ω at G=+4) and maintains ≤−87dBc third-harmonic distortion at 1MHz under differential configuration with 70Ω load - critical for xDSL line drivers requiring >14-bit dynamic range through 5MHz.

Key Specifications

Pinout & Package

OPA2614IDTJ is housed in an SO-8 (D) package with exposed pad for thermal enhancement, rated for −40°C to +85°C operation and compatible with standard surface-mount reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed, low-noise operational amplifier applications.

Compared with OPA2614IDTJ, the OPA2690 trades higher bandwidth for reduced output drive capability and increased noise, while the OPA2677 offers lower noise but lacks the voltage-feedback linearity and differential distortion validation essential for xDSL compliance.

Availability

OPA2614IDTJ is available at Aetrix Electronics and suitable for xDSL line drivers, 16-bit ADC front-ends, precision I/Q receivers, and active filter designs requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for OPA2614IDTJ 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 innovation in high-performance op amps and signal chain solutions.

The OPA2614IDTJ belongs to TI's OPAx614 family of high-output-current, low-noise voltage-feedback op amps, designed specifically for broadband communications infrastructure demanding simultaneous high linearity, wide bandwidth, and robust drive capability.

FAQ

What is the maximum output current specification for OPA2614IDTJ?

The OPA2614IDTJ is specified to source and sink ±350mA per channel under linear operating conditions at room temperature and ±6V supplies. At −40°C to +85°C, minimum guaranteed output current is ±220mA per channel. Short-circuit current reaches ±500mA, but sustained operation above ±350mA may trigger thermal limiting depending on PCB layout and ambient conditions. This makes OPA2614IDTJ suitable for driving 100Ω differential twisted-pair loads in xDSL applications without external boost stages.

Does OPA2614IDTJ support single-supply operation?

Yes, OPA2614IDTJ supports true single-supply operation from +5V to +12V. With proper input biasing (e.g., resistive divider to mid-supply), it delivers >2.6VPP output swing on +5V while maintaining >20MHz bandwidth and <−85dBc harmonic distortion. The input common-mode range extends from 1.2V to 3.8V, and output swings from 1.0V to 4.0V (no load), enabling DC-coupled or AC-coupled configurations in portable or space-constrained systems where dual supplies are impractical.

What is the harmonic distortion performance of OPA2614IDTJ at 1MHz?

At 1MHz, 2VPP differential output, and RL ≥ 500Ω, the OPA2614IDTJ achieves ≤−92dBc second-harmonic and ≤−110dBc third-harmonic distortion under ±6V supplies. In single +5V operation with RL = 100Ω to mid-supply, it maintains ≤−92dBc 2nd-harmonic and ≤−105dBc 3rd-harmonic. These values are measured per TI SBOS305D Figure 5 and confirm suitability for xDSL line drivers requiring strict spectral purity per ITU-T G.992.3/G.993.2 standards.

Is OPA2614IDTJ pin-compatible with other OPAx614 variants?

Yes, OPA2614IDTJ shares identical SO-8 (D) pinout and electrical behavior with all members of the OPA2614 family, including OPA2614ID and OPA2614IDR. The "TJ" suffix denotes tape-and-reel packaging with moisture sensitivity level 3 (MSL3), but pin assignment, thermal pad connection, and functional interface remain unchanged versus the "D" and "DR" variants. No PCB redesign is needed when migrating between these orderable versions.

What package type and thermal characteristics apply to OPA2614IDTJ?

OPA2614IDTJ uses an SO-8 (D) package with exposed thermal pad, rated for −40°C to +85°C operation. Its junction-to-ambient thermal resistance (θ_JA) is 125°C/W under standard JEDEC 2-layer board conditions. The exposed pad must be soldered to a minimum 100mm² copper pour for optimal thermal performance; failure to do so risks junction temperatures exceeding +150°C at full ±350mA output current, triggering thermal shutdown.