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Texas Instruments THS3061DGN
- Part No.:
- THS3061DGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS3061DGN.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,142
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Product details
Overview
THS3061DGN from Texas Instruments is a single-channel, high-voltage current-feedback amplifier optimized for low-distortion, high-slew-rate signal conditioning in video, line driver, and high-speed ADC preamplifier applications. It delivers 7000 V/μs slew rate at ±15 V supply, 300 MHz unity-gain bandwidth, –81 dBc 3rd-harmonic distortion at 10 MHz (G = 2, RL = 150 Ω), and ±145 mA output drive into 50 Ω.
For engineers reviewing the THS3061DGN datasheet, THS3061DGN pinout, THS3061DGN application, or THS3061DGN equivalent, this page provides verified electrical specifications, MSOP-8 PowerPAD™ package details, thermal design guidance, and validated alternative options for high-fidelity analog signal paths requiring >100 MHz flat bandwidth and <0.3 dB peaking.
Technical Context
The THS3061DGN employs a current-feedback architecture with BiCOM-1 bipolar process, enabling gain-independent bandwidth control via feedback resistor selection (e.g., 560 Ω for G = 2, 357 Ω for G = 5). Its transimpedance gain of 0.6–1 MΩ supports fast settling (125 ns to 0.01% for 2-V step) and low closed-loop output impedance (0.1 Ω at 1 MHz).
Designed for ±5 V to ±15 V dual-supply operation, it maintains 120 MHz 0.1-dB flat bandwidth at G = 2 and achieves –79 dBc 3rd-harmonic distortion at 10 MHz under ±5 V supply-enabling flexible deployment across industrial, test equipment, and broadband communication systems without sacrificing linearity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 300 MHz - Enables stable G = 1 configurations with >100 MHz usable signal bandwidth. |
| Slew Rate | 7000 V/μs at ±15 V - Supports full-scale 20-V step response in <3 ns with minimal slewing-induced distortion. |
| 3rd-Harmonic Distortion | –81 dBc at 10 MHz, G = 2, RL = 150 Ω - Meets broadcast-grade video line driver requirements (NTSC/PAL). |
| Output Current Drive | ±145 mA into 50 Ω - Directly drives twisted-pair transmission lines or multiple 150-Ω video loads without external buffers. |
| Input Voltage Noise | 2.6 nV/√Hz above 10 kHz - Low-noise performance critical for high-resolution ADC front-end amplification. |
| Supply Voltage Range | ±5 V to ±15 V - Compatible with legacy ±12 V and modern ±5 V systems; absolute max ±16.5 V. |
| Quiescent Current | 8.3 mA per channel at +25°C - Balances speed and power efficiency for continuous high-frequency operation. |
Pinout & Package
The THS3061DGN is housed in an 8-pin MSOP package with exposed PowerPAD™ thermal pad (DGN suffix), requiring solder connection to a PCB copper plane for thermal management. Package thermal resistance is θJA = 58.4°C/W and θJC = 4.7°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection; must be left unconnected or tied to ground per layout best practices. |
| 2 | VIN− | Inverting input terminal; low-impedance node (71 Ω) characteristic of current-feedback topology. |
| 3 | VIN+ | Noninverting input terminal; high-impedance node (518 kΩ) with 1 pF capacitance. |
| 4 | VS− | Negative supply rail; connects to –5 V to –15 V; requires local 0.1 µF + 10 µF decoupling. |
| 5 | NC | No internal connection; electrically isolated; avoid routing signals underneath. |
| 6 | VS+ | Positive supply rail; connects to +5 V to +15 V; requires local 0.1 µF + 10 µF decoupling. |
| 7 | VOUT | Amplifier output; capable of ±13 V swing into 150 Ω and ±145 mA sourcing/sinking. |
| 8 | NC | No internal connection; must not be used as thermal pad anchor or signal path. |
Key Features
| Feature | Design Value |
|---|---|
| 0.1-dB Flat Bandwidth | 120 MHz at G = 2 - Ensures amplitude fidelity across HD video baseband (0–108 MHz) without equalization. |
| Peaking Control | <0.3 dB peaking at unity gain - Eliminates need for external compensation in G = 1 video distribution circuits. |
| Differential Gain/Phase | 0.02% / 0.01° (NTSC/PAL) - Meets SMPTE RP 168 and ITU-R BT.601 broadcast linearity standards. |
| PowerPAD™ Thermal Interface | θJC = 4.7°C/W - Enables 1.71 W power dissipation at TJ = +125°C when PowerPAD is soldered to 2 oz. copper. |
| High Output Current | ±145 mA into 50 Ω - Drives long coaxial cables or multiple parallel 75-Ω video terminations directly. |
Applications
| Video Line Driver | VDSL Line Driver |
|---|---|
|
Use Scenario: Driving composite video (CVBS) or component YPbPr signals over 100 m coaxial cable to multiple monitors. IC Role / Device Role / Timing Role: High-current, low-distortion buffer amplifying baseband video up to 10 MHz with minimal differential gain/phase error. Use Value: Maintains 0.02% differential gain and 0.01° phase accuracy across NTSC/PAL standards while delivering ±13 V swing into 75 Ω. |
Use Scenario: Transmitting multi-tone VDSL2 signals (up to 30 MHz) over twisted-pair telephone lines with echo cancellation. IC Role / Device Role / Timing Role: High-slew-rate line driver providing >100 MHz small-signal bandwidth and –93 dBc intermodulation distortion at 10 MHz. Use Value: Enables clean 30-MHz upstream/downstream signal transmission with THS3061DGN's 220-MHz –3-dB bandwidth at G = 10. |
| High-Voltage ADC Preamplifier | Test & Measurement Signal Generator |
|
Use Scenario: Conditioning wide-dynamic-range sensor outputs (e.g., piezoelectric, photodiode TIA) before 16-bit+ SAR or pipeline ADCs. IC Role / Device Role / Timing Role: Low-noise (2.6 nV/√Hz), high-output-drive amplifier delivering full-scale ±10 V signals to ADC inputs with <125 ns settling. Use Value: Preserves ENOB by minimizing harmonic distortion (–81 dBc HD3) and ensuring 0.01% settling within 125 ns for 2-V steps. |
Use Scenario: Generating calibrated high-frequency sine, pulse, or arbitrary waveforms in automated test equipment (ATE) and oscilloscope front-ends. IC Role / Device Role / Timing Role: Wideband gain block supporting programmable amplitude scaling (G = 1 to 10) with flat frequency response and low group delay variation. Use Value: Delivers 300 MHz unity-gain bandwidth and <0.3 dB peaking, enabling accurate waveform reproduction up to 100 MHz without post-processing correction. |
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 |
|---|---|---|---|
| THS3091DR | Higher slew rate (8500 V/μs), lower distortion (–85 dBc HD3 @ 10 MHz), but limited to ±12 V max supply. | Better suited for repetitive high-frequency sine/square wave generation where THS3061DGN's 900 V/μs repetitive limit applies. | Select THS3091DR when operating exclusively at ±12 V and requiring lowest possible distortion below 20 MHz. |
| OPA691IDBVR | Wider supply range (±5 V to ±6 V single-ended), lower quiescent current (6.5 mA), but reduced output drive (±350 mA into 100 Ω only). | Optimized for portable/battery-powered test gear needing lower power and moderate drive capability. | Choose OPA691IDBVR for space-constrained designs requiring 5-V single-supply operation and <7 mA IQ. |
Compared with THS3061DGN, THS3091DR offers superior distortion performance at ±12 V but lacks ±15 V compatibility, while OPA691IDBVR enables 5-V single-supply use with lower power draw but trades off voltage headroom and load drive strength.
Availability
THS3061DGN is available at Aetrix Electronics and suitable for video line drivers, VDSL line drivers, high-voltage ADC preamplifiers, and test & measurement signal generators requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for THS3061DGN 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 THS3061DGN belongs to TI's THS306x family of current-feedback amplifiers, engineered specifically for demanding broadband applications requiring simultaneous high slew rate, low distortion, and robust output drive-such as professional video infrastructure and wired communications.
FAQ
What is the maximum safe operating voltage for THS3061DGN?
The THS3061DGN has an absolute maximum supply voltage rating of ±16.5 V. For reliable long-term operation, TI specifies a recommended operating range of ±5 V to ±15 V. Exceeding ±15 V risks exceeding the 125°C junction temperature limit even with proper PowerPAD™ thermal management, especially under high output current conditions.
Does THS3061DGN require external compensation capacitors?
No, the THS3061DGN is internally compensated for unity-gain stability and exhibits <0.3 dB peaking at G = 1. External compensation is unnecessary for standard configurations. However, feedback resistor selection (e.g., 560 Ω for G = 2) is critical to maintain phase margin and bandwidth-TI provides recommended values in the datasheet Table 1.
Can THS3061DGN drive a 75-Ω video load directly?
Yes, THS3061DGN can drive a 75-Ω load directly with ±13 V output swing and meets broadcast linearity specs: 0.02% differential gain and 0.01° differential phase at NTSC/PAL frequencies. For optimal performance, use matched 75-Ω source termination and minimize trace length to preserve 120 MHz 0.1-dB flat bandwidth.
How does PowerPAD™ thermal management affect THS3061DGN reliability?
Proper soldering of the THS3061DGN's PowerPAD™ to a dedicated thermal copper plane reduces θJA from 58.4°C/W to ≤30°C/W in typical layouts. Without this, junction temperature can exceed +125°C at full output current, triggering thermal shutdown or accelerated parametric drift-TI mandates PowerPAD connection per SLMA002 technical brief.
Is THS3061DGN suitable for driving repetitive high-frequency sine waves?
THS3061DGN is not recommended for repetitive signals exceeding 900 V/μs slew rate (e.g., high-amplitude, high-frequency sine waves), as this causes excessive supply current and potential device damage. For such applications, TI recommends THS3091 or THS3095-designed specifically for sustained high-slew-rate operation.
THS3061DGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- 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-HVSSOP
THS3061DGN FAQ
1.How can I place an order for THS3061DGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3061DGN 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 THS3061DGN reliable?
The price and inventory of THS3061DGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3061DGN is usually 5 days.
3.What payment methods are accepted for THS3061DGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3061DGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3061DGN?
THS3061DGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3061DGN 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 THS3061DGN?
For technical support, including THS3061DGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3061DGN requirements.
6.How does Aetrix verify that THS3061DGN is sourced from the original manufacturer or authorized distributors?
All THS3061DGN 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 THS3061DGN meets industry standards.
7.What is the process for return or replacement of THS3061DGN?
All THS3061DGN units undergo pre-shipment inspection (PSI). If there is an issue with THS3061DGN, 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 THS3061DGN part is unused and in its original packaging.
Return procedure for THS3061DGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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