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Texas Instruments THS3062DDAR
- Part No.:
- THS3062DDAR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS3062DDAR.pdf
- Description:
- IC OPAMP CFA 2 CIRC 8SOPWRPAD
- Quantity:
- Payment:
- Shipping:
Inventory:3,330
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Product details
Overview
THS3062DDAR 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 at ±15 V supply, 120 MHz 0.1-dB flat bandwidth (G = 2), –81 dBc 3rd harmonic distortion at 10 MHz, ±145 mA output drive into 50 Ω, and operates across ±5 V to ±15 V supplies.
For engineers reviewing the THS3062DDAR datasheet, THS3062DDAR pinout, THS3062DDAR application, or THS3062DDAR equivalent, key selection criteria include its current-feedback architecture enabling stable high-gain bandwidth scaling, PowerPAD-enhanced thermal performance in SOIC-8, and verified distortion performance under large-signal transient conditions.
Technical Context
The THS3062DDAR implements a current-feedback topology with separate high-impedance noninverting input and low-impedance inverting input, enabling gain-bandwidth independence via feedback resistor tuning. Its BiCOM-1 bipolar process supports ±15 V operation and delivers 0.3 dB peaking at unity gain-critical for flat frequency response in video and ADC driver stages.
Internal transimpedance gain of 0.6–1 MΩ (temperature-dependent) sets loop gain, while input bias currents differ significantly between terminals (±6 μA noninverting, ±2 μA inverting), requiring asymmetric compensation in precision designs. Output stage delivers symmetrical ±145 mA sourcing/sinking capability into 50 Ω loads without clipping at ±13 V swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±15 V - supports industrial and broadcast systems requiring wide dynamic range and headroom. |
| Slew Rate | 7000 V/μs at G = 5, ±15 V - enables faithful reproduction of fast edges in pulse and video signals without slew-induced distortion. |
| 0.1-dB Bandwidth | 120 MHz at G = 2 - ensures minimal amplitude error across HD video baseband (0–30 MHz) and VDSL upstream bands. |
| 3rd Harmonic Distortion | –81 dBc at 10 MHz, G = 2, RL = 150 Ω - meets stringent spectral purity requirements for analog video and communication line drivers. |
| Output Current Drive | ±145 mA into 50 Ω - directly drives coaxial cables, twisted-pair lines, or multiple 150 Ω video loads without external buffers. |
| Input Voltage Noise | 2.6 nV/√Hz above 10 kHz - low enough to preserve SNR in high-gain preamplifier stages before high-speed ADCs. |
| Quiescent Current | 8.3 mA per channel at +25°C - balances speed and power efficiency for dual-channel instrumentation front ends. |
Pinout & Package
THS3062DDAR is housed in an 8-pin SOIC package with PowerPAD (DDA variant), where the exposed thermal pad on the underside must be soldered to a PCB copper plane for effective heat dissipation. Thermal resistance θJA = 45.8°C/W and θJC = 9.2°C/W confirm suitability for continuous high-output-power operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1VOUT | Channel 1 output | Low-impedance current-source output node; requires direct routing to load or termination to avoid instability. |
| 1VIN− | Channel 1 inverting input | Low-impedance (71 Ω) current-summing node; sets closed-loop gain with feedback resistor Rf. |
| 1VIN+ | Channel 1 noninverting input | High-impedance (518 kΩ) voltage-input node; used for reference biasing or signal injection in noninverting configurations. |
| VS− | Negative supply rail | Must be decoupled with ≥0.1 µF ceramic + 10 µF tantalum close to pin; shared return path affects PSRR performance. |
| VS+ | Positive supply rail | Same decoupling requirement as VS−; PSRR >74 dB ensures immunity to supply ripple in mixed-signal systems. |
| 2VOUT | Channel 2 output | Independent output with identical drive capability; enables dual-path signal processing without crosstalk degradation. |
| 2VIN− | Channel 2 inverting input | Electrically isolated from Channel 1; allows independent gain and feedback network design per channel. |
| 2VIN+ | Channel 2 noninverting input | Provides DC bias reference point for second channel; common-mode range extends to ±13.1 V at ±15 V supply. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables scalable bandwidth: 220 MHz at G = 10 (Rf = 200 Ω), maintaining stability without complex compensation. |
| PowerPAD thermal enhancement | Reduces junction-to-board thermal resistance to 9.2°C/W, allowing sustained ±145 mA output at ambient ≤+85°C. |
| Dual-channel isolation | Typical crosstalk < –70 dB at 10 MHz ensures independent operation in differential line drivers or I/Q signal paths. |
| Low distortion at high output | –79 dBc 3rd HD at 2 VPP, 10 MHz, ±15 V confirms linear operation up to near-rail output swing. |
| Wide supply range support | Validated operation from ±4.5 V to ±16.5 V absolute max enables reuse across 5 V embedded and ±15 V lab-grade systems. |
Applications
| Video Line Driver | VDSL Line Driver |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable over 100 m in broadcast camera interfaces with NTSC/PAL compliance. IC Role / Device Role / Timing Role: Final-stage buffer amplifying composite video with minimal group delay variation and differential gain/phase error. Use Value: 0.02% differential gain and 0.01° differential phase error ensure color fidelity and sync stability across full 0–5.5 MHz video spectrum. | Use Scenario: Transmitting upstream VDSL2 signals (up to 30 MHz) over twisted-pair telephone lines with echo cancellation. IC Role / Device Role / Timing Role: High-linearity transmit driver delivering ±12 V differential output into 100 Ω hybrid interface. Use Value: –81 dBc 3rd harmonic distortion at 10 MHz prevents in-band intermodulation that would degrade DSLAM receiver sensitivity. |
| High-Voltage ADC Preamplifier | Test & Measurement Signal Generator |
Use Scenario: Conditioning ±10 V sensor outputs prior to 16-bit, 100 MSPS SAR ADC sampling. IC Role / Device Role / Timing Role: Gain-of-2 buffer with rail-to-rail output swing and sub-125 ns settling to 0.01%. Use Value: 120 MHz large-signal bandwidth preserves transient fidelity of fast step inputs, preventing aperture uncertainty errors. | Use Scenario: Generating calibrated 20 VPP sine waves up to 20 MHz in automated test equipment with <0.05% THD. IC Role / Device Role / Timing Role: Output stage for arbitrary waveform generator, driving 50 Ω loads with programmable amplitude. Use Value: 7000 V/μs slew rate eliminates slew-induced flattening on 10 MHz full-scale transitions, ensuring accurate waveform shape. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3062DGNR | MSOP-8 PowerPAD package (θJA = 58.4°C/W); same electrical specs but smaller footprint and higher thermal resistance. | Better suited for space-constrained PCBs where thermal margin allows; not ideal for continuous 145 mA output at high ambient. | Select THS3062DGNR only when board area is critical and average output current remains <100 mA. |
| THS3092DR | Higher slew rate (8500 V/μs), lower distortion (–85 dBc 3rd HD @10 MHz), but limited to ±12 V max supply and reduced output current (±110 mA). | Optimized for repetitive sine/square wave generation where THS3062DDAR's 900 V/μs repetitive limit is exceeded. | Choose THS3092DR for signal sources requiring sustained high-frequency output; retain THS3062DDAR for pulsed, high-voltage, high-current applications. |
Compared with THS3062DGNR, THS3062DDAR offers superior thermal performance for high-output-power operation; compared with THS3092DR, it supports higher supply voltages and delivers greater peak current, making it preferable for video and line-driving tasks demanding both voltage headroom and drive strength.
Availability
THS3062DDAR 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 production continuity, and traceable sourcing from authorized channels.
Supply support for THS3062DDAR 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 THS306x product line was engineered specifically for high-fidelity, high-slew-rate signal conditioning in video infrastructure, communications line drivers, and precision test equipment-emphasizing distortion performance, output drive, and thermal robustness.
FAQ
What is the maximum safe repetitive slew rate for THS3062DDAR?
The THS3062DDAR is not recommended for repetitive signals exceeding 900 V/μs due to excessive power dissipation and risk of thermal overstress. This limit applies to continuous sine, square, or sawtooth waveforms. For such applications, TI recommends THS3092DR instead. The THS3062DDAR excels in pulsed or transient signal handling up to its rated 7000 V/μs, provided ≥20 ns recovery time exists between pulses. Always verify junction temperature using θJA = 45.8°C/W under actual operating conditions.
How does the PowerPAD on THS3062DDAR affect PCB layout?
The PowerPAD on THS3062DDAR is an electrically isolated thermal pad requiring direct solder connection to a dedicated internal or external copper pour for heat dissipation. TI specifies a minimum 3 in × 3 in 2 oz. copper plane for rated 2.18 W power dissipation. Failure to thermally connect the pad risks exceeding +125°C junction temperature, leading to parametric drift or permanent damage. Use thermal vias (≥6×0.3 mm) under the pad and avoid routing traces beneath it. The pad is not connected to any pin and must remain floating electrically.
Can THS3062DDAR drive a 150 Ω video load with NTSC compliance?
Yes, THS3062DDAR drives 150 Ω loads with 0.02% differential gain error and 0.01° differential phase error at standard video frequencies-fully compliant with NTSC and PAL broadcast specifications. Tested at G = 2, ±15 V supply, and RL = 150 Ω, it maintains this performance across multiple simultaneous loads (up to four 150 Ω terminations). Its low 71 Ω inverting input impedance simplifies termination matching, and the 120 MHz 0.1-dB bandwidth ensures minimal group delay variation across 0–5.5 MHz.
What feedback resistor value should be used for G = 2 with THS3062DDAR at ±15 V?
For G = 2 operation at ±15 V supply, TI specifies Rf = 560 Ω as the recommended feedback resistor value to optimize bandwidth, phase margin, and distortion. This yields 275 MHz small-signal bandwidth and 120 MHz 0.1-dB flatness while maintaining <0.3 dB peaking. Use 1% metal-film resistors placed adjacent to the inverting input pin. Avoid values below 357 Ω (for G = 5) unless distortion and thermal loading are validated, as lower Rf increases output stage current demand and may elevate harmonic distortion.
Does THS3062DDAR support single-supply operation?
No, THS3062DDAR is specified exclusively for dual-supply operation from ±5 V to ±15 V. Its input common-mode range is centered at ground (±13.1 V at ±15 V), and the output swing is symmetric about 0 V. Single-supply use violates the absolute maximum rating for input voltage (±VS) and causes severe clipping or phase reversal. For single-supply high-speed applications, consider TI's OPA691 or THS3122, which are explicitly characterized for 10 V to 30 V operation.
THS3062DDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 7000V/µs
- Gain Bandwidth Product:
- 2.2 GHz
- -3db Bandwidth:
- 300 MHz
- Current - Input Bias:
- 6 µA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 8.3mA
- Current - Output / Channel:
- 145 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
THS3062DDAR FAQ
1.How can I place an order for THS3062DDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3062DDAR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS3062DDAR reliable?
The price and inventory of THS3062DDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3062DDAR is usually 5 days.
3.What payment methods are accepted for THS3062DDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3062DDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3062DDAR?
THS3062DDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3062DDAR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS3062DDAR?
For technical support, including THS3062DDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3062DDAR requirements.
6.How does Aetrix verify that THS3062DDAR is sourced from the original manufacturer or authorized distributors?
All THS3062DDAR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS3062DDAR meets industry standards.
7.What is the process for return or replacement of THS3062DDAR?
All THS3062DDAR units undergo pre-shipment inspection (PSI). If there is an issue with THS3062DDAR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS3062DDAR part is unused and in its original packaging.
Return procedure for THS3062DDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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