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Texas Instruments THS3061DGNRG4
- Part No.:
- THS3061DGNRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS3061DGNRG4.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,154
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Product details
Overview
THS3061DGNRG4 from Texas Instruments is a single-channel, high-voltage current-feedback amplifier optimized for low-distortion, high-slew-rate signal conditioning. It delivers 7000 V/μs slew rate at ±15 V supplies, 300 MHz unity-gain bandwidth, and –81 dBc third-harmonic distortion at 10 MHz (G = 2, RL = 150 Ω), enabling use in video line drivers and VDSL line driver applications.
For engineers reviewing the THS3061DGNRG4 datasheet, THS3061DGNRG4 pinout, THS3061DGNRG4 application, or THS3061DGNRG4 equivalent, key selection criteria include its 8-pin MSOP-PowerPAD™ package, ±5 V to ±15 V dual-supply operation, 145 mA output drive into 50 Ω, and validated performance in high-speed ADC preamplifier and test-and-measurement systems.
Technical Context
The THS3061DGNRG4 employs a current-feedback architecture with BiCOM-1 bipolar process, enabling wide bandwidth independent of closed-loop gain-e.g., 220 MHz at G = 10 (Rf = 200 Ω). Its input stage features asymmetric impedance: ~518 kΩ noninverting input resistance and ~71 Ω inverting input resistance, requiring careful feedback network design to maintain stability and minimize distortion.
Thermal management is critical: the DGN package incorporates an electrically isolated PowerPAD™ requiring connection to a thermally conductive PCB plane. At ±15 V, quiescent current is 8.3 mA/channel, and maximum junction temperature is limited to +125°C for continuous reliability-exceeding this risks parametric degradation or failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 300 MHz - Enables stable operation with minimal peaking (<0.3 dB) at G = 1, supporting wideband DC-coupled signal paths. |
| Slew Rate | 7000 V/μs - Supports full-scale 20-V step response in <3 ns, critical for pulsed high-fidelity imaging and radar front-ends. |
| HD3 @ 10 MHz | –81 dBc (G = 2, RL = 150 Ω) - Meets broadcast-grade video differential gain/phase specs (0.02%/0.01°) without post-compensation. |
| Output Current | ±145 mA into 50 Ω - Drives terminated coaxial lines directly, eliminating external buffer stages in VDSL and instrumentation outputs. |
| Supply Range | ±5 V to ±15 V - Allows flexible rail selection: ±5 V for low-power portable test gear; ±15 V for high-dynamic-range ADC drivers. |
| Input Voltage Noise | 2.6 nV/√Hz - Dominates system noise floor only above ~10 kHz; combined with low input bias current, suits high-Z sensor interfaces. |
| Small-Signal BW @ G=5 | 260 MHz (±15 V) - Maintains >200 MHz bandwidth even at moderate gains, enabling multi-stage high-frequency filtering without cascaded roll-off. |
Pinout & Package
The THS3061DGNRG4 is housed in an 8-pin MSOP package with exposed PowerPAD™ thermal pad (DGN), requiring solder connection to a dedicated PCB copper pour for thermal integrity. Pin 1 is marked by a dot; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Must be left floating or grounded per layout best practices; no electrical function. |
| 2 (VIN−) | Inverting input | Low-impedance node (~71 Ω); sets feedback path; requires matched trace length to noninverting input for common-mode rejection. |
| 3 (VIN+) | Noninverting input | High-impedance node (~518 kΩ); sensitive to stray capacitance; must be routed short and shielded from noise sources. |
| 4 (VS−) | Negative supply | Connect directly to low-impedance ground plane; decouple with 0.1 µF ceramic + 10 µF tantalum close to pin. |
| 5 (NC) | No internal connection | Must be left floating or grounded; no internal bond wire or circuitry. |
| 6 (VS+) | Positive supply | Connect directly to low-impedance power plane; decoupling identical to VS− required for PSRR >74 dB. |
| 7 (VOUT) | Amplifier output | Capable of sourcing/sinking ±145 mA; requires series termination or controlled-impedance routing when driving 50 Ω loads. |
| 8 (NC) | No internal connection | Electrically isolated; may be used as thermal relief pad anchor but carries no signal. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback topology | Enables gain-independent bandwidth scaling-e.g., 220 MHz at G = 10-without sacrificing phase margin or stability. |
| PowerPAD™ thermal enhancement | DGN package achieves θJA = 58.4°C/W; mandatory PCB thermal pad connection enables 680 mW max power dissipation at TA = +85°C. |
| Low harmonic distortion | –81 dBc HD3 at 10 MHz ensures compliance with NTSC/PAL video standards and high-fidelity RF sampling front-ends. |
| High output drive | ±145 mA into 50 Ω eliminates need for discrete output buffers in line-driver and high-voltage DAC output stages. |
| Wide supply range | Operates from ±4.5 V to ±16.5 V absolute max, supporting both battery-powered portable instruments and industrial ±15 V systems. |
Applications
| Video Line Driver | VDSL Line Driver |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable in broadcast equipment with SMPTE 259M compliance requirements. IC Role / Device Role / Timing Role: Final-stage buffer amplifier delivering 1 VPP composite video with <0.02% differential gain error. Use Value: Eliminates external emitter-follower stage while maintaining 0.01° differential phase accuracy across 0–5.5 MHz bandwidth. |
Use Scenario: Transmitting upstream/downstream DSL signals over twisted-pair telephone lines up to 30 MHz. IC Role / Device Role / Timing Role: High-linearity transmit driver interfacing with ADSL2+ line codec and hybrid coupler. Use Value: Delivers –81 dBc HD3 at 10 MHz and ±145 mA peak current to meet ITU-T G.992.5 spectral mask requirements. |
| High-Voltage ADC Preamplifier | Test and Measurement System |
Use Scenario: Conditioning ±10 V sensor signals before digitization by 16-bit SAR ADCs with >90 dB SNR. IC Role / Device Role / Timing Role: Gain-of-2 signal conditioner with 300 MHz bandwidth ensuring <1 LSB settling in <125 ns (0.01%). Use Value: Achieves 2.6 nV/√Hz input noise and 7000 V/μs slew rate to preserve fast transients without slewing-induced distortion. |
Use Scenario: Output stage of arbitrary waveform generator producing 20 VPP pulses at 50 MHz repetition rates. IC Role / Device Role / Timing Role: Final amplification stage delivering high-fidelity, low-jitter analog waveforms to DUT inputs. Use Value: Sustains 120 MHz large-signal bandwidth (4 VPP) and 1 ns rise/fall time, enabling sub-ns edge fidelity in timing-critical validation. |
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 |
|---|---|---|---|
| THS3061DR | Same die in SOIC-8 (D) package; θJA = 97.5°C/W vs. DGN's 58.4°C/W; no PowerPAD™ thermal enhancement. | Lower power density limits continuous 145 mA output into 50 Ω at elevated ambient temperatures (>60°C). | Select THS3061DR only for space-tolerant, lower-power designs where thermal headroom exceeds 25°C. |
| OPA691 | Wider 350 mA output drive; higher 11.5 mA quiescent current; 350 MHz GBW but –75 dBc HD3 @ 10 MHz (G = 2). | Better suited for driving heavier capacitive loads or parallel 50 Ω terminations; trades distortion for raw current capability. | Choose OPA691 when load current >145 mA is required and –75 dBc HD3 meets system SFDR budget. |
Compared with THS3061DR, the THS3061DGNRG4 provides superior thermal performance for sustained high-current operation; versus OPA691, it offers 6 dB better harmonic distortion at 10 MHz while delivering adequate drive for single-50 Ω line loads.
Availability
THS3061DGNRG4 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 guaranteed traceable sourcing.
Supply support for THS3061DGNRG4 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-performance amplifier design and manufacturing.
The THS3061DGNRG4 belongs to TI's high-speed current-feedback amplifier product line, engineered specifically for applications demanding simultaneous high slew rate, wide bandwidth, and ultra-low distortion in compact form factors.
FAQ
What is the maximum safe operating voltage for THS3061DGNRG4?
The THS3061DGNRG4 has an absolute maximum supply voltage rating of ±16.5 V. Operation beyond this risks permanent damage. For reliable continuous use, TI specifies ±15 V as the recommended maximum operating voltage. The device maintains full AC performance-including 7000 V/μs slew rate and 300 MHz bandwidth-within this range, and thermal derating begins above ±15 V due to increased power dissipation in the DGN package.
Can THS3061DGNRG4 drive a 50 Ω load continuously at ±15 V supply?
Yes, THS3061DGNRG4 is rated for ±145 mA output current into 50 Ω at ±15 V, and its DGN package-with PowerPAD™ connected to a thermally robust PCB plane-supports continuous operation under this condition at ambient temperatures ≤+85°C. However, sustained full-load operation requires adherence to the package's 680 mW maximum power dissipation limit and proper thermal via placement beneath the PowerPAD™ to maintain junction temperature ≤+125°C.
What feedback resistor value should be used for THS3061DGNRG4 at G = 2 with ±15 V supplies?
For a noninverting gain of 2 with ±15 V supplies, TI recommends Rf = 560 Ω (with Rg = 560 Ω), as specified in the "Recommended Resistor Values for Optimum Frequency Response" table. This value balances bandwidth (275 MHz small-signal), phase margin, and distortion (–81 dBc HD3 at 10 MHz). Using 1% tolerance metal-film resistors is mandatory to avoid gain error and maintain stability across temperature.
Is THS3061DGNRG4 suitable for driving multiple 150 Ω video loads simultaneously?
THS3061DGNRG4 maintains 0.02% differential gain and 0.01° differential phase accuracy with one 150 Ω load (NTSC/PAL), but driving multiple parallel 150 Ω loads degrades these metrics-differential gain increases to >0.05% at two loads. For multi-load video distribution, TI recommends using a dedicated video amplifier like the THS7353 or adding passive splitting with impedance-matched buffering; THS3061DGNRG4 is optimized for single-point high-fidelity drive.
How does the PowerPAD™ on THS3061DGNRG4 affect PCB layout?
The PowerPAD™ on THS3061DGNRG4 is an electrically isolated thermal pad on the underside of the MSOP package that must be soldered to a dedicated, low-thermal-resistance copper pour connected to the system ground or negative supply plane. TI requires ≥4 thermal vias (0.3 mm diameter, filled or capped) under the pad, each connected to an internal ground plane. Failure to implement this results in excessive junction temperature, reduced output current capability, and potential long-term reliability failure-even within datasheet voltage/current limits.
THS3061DGNRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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
THS3061DGNRG4 FAQ
1.How can I place an order for THS3061DGNRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3061DGNRG4 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 THS3061DGNRG4 reliable?
The price and inventory of THS3061DGNRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3061DGNRG4 is usually 5 days.
3.What payment methods are accepted for THS3061DGNRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3061DGNRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3061DGNRG4?
THS3061DGNRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3061DGNRG4 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 THS3061DGNRG4?
For technical support, including THS3061DGNRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3061DGNRG4 requirements.
6.How does Aetrix verify that THS3061DGNRG4 is sourced from the original manufacturer or authorized distributors?
All THS3061DGNRG4 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 THS3061DGNRG4 meets industry standards.
7.What is the process for return or replacement of THS3061DGNRG4?
All THS3061DGNRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS3061DGNRG4, 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 THS3061DGNRG4 part is unused and in its original packaging.
Return procedure for THS3061DGNRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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