Texas Instruments THS3062D

Overview

THS3062D from Texas Instruments is a dual high-voltage, current-feedback amplifier optimized for low-distortion, high-slew-rate signal conditioning in video, test equipment, and line-driver applications. It delivers 7000 V/μs slew rate, 300 MHz unity-gain bandwidth, ±145 mA output drive into 50 Ω, –81 dBc third-harmonic distortion at 10 MHz (G = 2), and operates from ±5 V to ±15 V supplies.

For engineers reviewing the THS3062D datasheet, THS3062D pinout, THS3062D application, or THS3062D equivalent, key selection criteria include its current-feedback architecture enabling stable high-gain bandwidth (220 MHz at G = 10), PowerPAD-enhanced SOIC-8 thermal performance, and verified differential gain/phase accuracy (<0.02%/0.01°) for NTSC/PAL video systems.

Technical Context

The THS3062D implements a current-feedback topology with separate high-impedance noninverting input (518 kΩ) and low-impedance inverting input (71 Ω), enabling bandwidth control via feedback resistor value (e.g., 560 Ω for G = 2). Its BiCOM-1 process supports ±15 V operation while maintaining 0.3 dB peaking at unity gain and 120 MHz 0.1-dB flat bandwidth.

It features rail-to-rail output swing capability (±13.3 V into 150 Ω at ±15 V), low 2.6 nV/√Hz input voltage noise, and integrated PowerPAD thermal management requiring PCB copper plane connection for safe 1.02 W dissipation in the D package.

Key Specifications

Pinout & Package

The THS3062D is packaged in an 8-pin SOIC with PowerPAD (package code D), requiring thermal connection of the exposed pad to a PCB copper plane for reliable operation at full output current.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.

Compared with THS3062D, THS3062DDA offers superior thermal reliability under high-power conditions, while OPA691 trades bandwidth and noise performance for higher output current-making THS3062D optimal for precision video and medium-current, ultra-wideband applications.

Availability

THS3062D is available at Aetrix Electronics and suitable for video line driver, VDSL line driver, and high-voltage ADC preamplifier applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.

Supply support for THS3062D 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 decades of expertise in high-speed amplifier design and manufacturing.

The THS3062D belongs to TI's THS306x family of current-feedback amplifiers, engineered specifically for demanding video, communications, and instrumentation applications requiring simultaneous high slew rate, wide bandwidth, and low distortion.

FAQ

What is the maximum safe operating voltage for THS3062D?

The THS3062D has an absolute maximum supply voltage rating of ±16.5 V. For reliable long-term operation, TI specifies ±15 V as the recommended maximum operating voltage. Exceeding ±16.5 V risks permanent damage due to internal junction breakdown, and operation above ±15 V may reduce device lifetime even if within absolute maximum limits. Always observe derating guidelines in the Thermal Considerations section of the THS3062D datasheet.

Does THS3062D require external compensation components?

No, the THS3062D is internally compensated and does not require external compensation capacitors. Its current-feedback architecture achieves stability through proper selection of the feedback resistor (e.g., 560 Ω for G = 2), not capacitor-based compensation. Using incorrect feedback resistance-especially values significantly lower than recommended-can cause instability or increased distortion. Refer to Table 1 in the THS3062D datasheet for validated RF/RG combinations per gain setting.

Can THS3062D drive a 75-Ω video load directly?

Yes, THS3062D can drive a 75-Ω video load directly when configured as a unity-gain buffer with appropriate termination. At ±15 V supply, it delivers ±13 V output swing into 150 Ω and maintains <0.02% differential gain error-meeting SMPTE and ITU-R broadcast standards. For 75-Ω loads, use series-source termination (e.g., 37.5 Ω) at the output to match impedance and prevent reflections, as confirmed in THS3062D application circuit Figure 48.

What is the purpose of the PowerPAD on the THS3062D package?

The PowerPAD on the THS3062D (SOIC-8 package code D) is an exposed thermal pad on the underside of the IC that must be soldered to a large PCB copper plane to dissipate heat. It reduces thermal resistance (θJA = 97.5°C/W) and enables safe operation at up to 1.02 W power dissipation. Leaving the PowerPAD unconnected causes junction temperature to exceed +125°C under load, leading to parametric drift or permanent failure. TI technical brief SLMA002 provides layout guidance for optimal thermal performance of the THS3062D PowerPAD.

How does THS3062D differ from THS3061 in functionality and pinout?

The THS3062D is the dual-channel version of the THS3061 single-channel amplifier. Both share identical electrical specifications, current-feedback architecture, and per-channel pin functions-but THS3062D integrates two independent amplifiers in one SOIC-8 package with shared supply pins (VS+, VS−) and separate I/O pins (VOUT1/VIN±1 and VOUT2/VIN±2). Pin compatibility is maintained only within same-package variants (e.g., THS3062D and THS3061D are both SOIC-8), but THS3062D cannot substitute for THS3061 in single-amplifier layouts without redesigning signal routing and supply decoupling.