Texas Instruments THS4051IDGNR
- Part No.:
- THS4051IDGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4051IDGNR.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:3,937
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Product details
Overview
THS4051IDGNR from Texas Instruments is a single-channel, high-speed voltage-feedback operational amplifier optimized for professional video, imaging, and communication signal conditioning. It delivers 70 MHz bandwidth (G = 1), 240 V/µs slew rate, 60 ns settling time (0.1%), ±15 V dual-supply operation, and 100 mA output drive - enabling clean amplification of composite video, RGB, or high-fidelity analog baseband signals in broadcast equipment and test instrumentation.
For engineers reviewing the THS4051IDGNR datasheet, THS4051IDGNR pinout, THS4051IDGNR application, or THS4051IDGNR equivalent, this page provides verified electrical specifications, MSOP-8 package layout, video-grade distortion performance (−82 dBc THD at 1 MHz), differential gain/phase accuracy (0.01%/0.01°), and real-world design context for stable unity-gain and G ≥ 2 configurations.
Technical Context
The THS4051IDGNR employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling wide bandwidth and low distortion without external compensation. Its voltage-feedback architecture supports stable operation at all gains in both inverting and non-inverting topologies, with no minimum gain requirement.
It features internal nulling pins (Pins 1 and 8) for precise input offset adjustment, rail-to-rail output swing capability (±13.6 V into 1 kΩ at ±15 V supplies), and robust thermal design via PowerPAD™ thermal pad in the DGN package - critical for sustained high-output-current operation in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 70 MHz at G = 1, ±15 V - supports full HD baseband video (≤30 MHz 0.1-dB flatness) without attenuation. |
| Slew rate | 240 V/µs at ±15 V - ensures distortion-free reproduction of fast transient video sync pulses and digital waveform edges. |
| Total harmonic distortion | −82 dBc at 1 MHz, RL = 150 Ω - meets broadcast-grade video linearity requirements (e.g., SMPTE RP-168). |
| Differential gain/phase error | 0.01% / 0.01° at NTSC, ±15 V - preserves color fidelity in analog video distribution systems. |
| Supply voltage range | ±4.5 V to ±16.5 V dual supply - enables flexible integration into legacy ±12 V or modern ±15 V analog signal chains. |
| Output current (continuous) | 100 mA typical - drives multiple 75-Ω video loads or low-impedance ADC inputs without external buffering. |
| Input voltage noise | 14 nV/√Hz at 10 kHz - maintains SNR > 70 dB for µV-level sensor signal amplification stages. |
Pinout & Package
THS4051IDGNR is housed in an 8-pin PowerPAD™ MSOP (DGN) package with exposed thermal pad for enhanced heat dissipation. The package measures 3.0 mm × 3.0 mm × 1.0 mm and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null input (connect to external potentiometer wiper for precision DC trimming). |
| 2 | IN− | Inverting input - accepts feedback network for stable closed-loop gain configuration. |
| 3 | IN+ | Non-inverting input - high-impedance node (1 MΩ) for signal source connection. |
| 4 | VCC− | Negative supply rail - must be decoupled locally with ≥0.1 µF ceramic capacitor. |
| 5 | OUT | Amplified output - capable of ±13.6 V swing into 1 kΩ; requires series resistor for >10 pF capacitive loads. |
| 6 | VCC+ | Positive supply rail - decoupling essential to maintain PSRR > 70 dB across 10 Hz–10 MHz. |
| 7 | NC | No internal connection - left unconnected per TI datasheet SLOS238D. |
| 8 | NULL | Offset null reference - paired with Pin 1 for balanced nulling circuit implementation. |
Key Features
| Feature | Design Value |
|---|---|
| Stable at all gains | Unity-gain and G ≥ 2 configurations operate without phase compensation components - reduces BOM count and layout area. |
| PowerPAD™ thermal enhancement | θJA = 58.4°C/W enables 2.14 W power dissipation at TA = 25°C - sustains 100 mA output current without thermal shutdown in compact enclosures. |
| Professional video performance | 0.1-dB flatness to 30 MHz + 0.01% differential gain error - eliminates color bleeding and hue shift in SD/HD analog video routing. |
| Low distortion at high frequency | −89 dBc THD at 1 MHz, RL = 1 kΩ - preserves spectral purity in IF amplification and high-speed data acquisition front-ends. |
| Wide supply flexibility | Operates from ±4.5 V to ±16.5 V dual supply or 9 V to 33 V single supply - simplifies reuse across legacy and new system power domains. |
Applications
| Broadcast Video Distribution | High-Speed Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying and distributing composite NTSC/PAL video signals across multi-monitor studio environments with minimal crosstalk and color degradation. IC Role / Device Role / Timing Role: Buffer and driver amplifier in the final stage of video signal path, maintaining impedance matching to 75-Ω coaxial lines. Use Value: 0.01% differential gain error and 30 MHz 0.1-dB bandwidth ensure broadcast-compliant color fidelity and edge sharpness over long cable runs. |
Use Scenario: Conditioning analog outputs from high-resolution ADCs before digitization in oscilloscopes or automated test equipment. IC Role / Device Role / Timing Role: High-fidelity gain stage with low noise (14 nV/√Hz) and fast settling (60 ns) to preserve signal integrity during rapid sampling transitions. Use Value: 240 V/µs slew rate prevents slewing-induced distortion on fast-rising waveforms, while −82 dBc THD maintains ENOB > 12 bits at 1 MHz. |
| Medical Imaging Signal Chain | Communications Baseband Amplifier |
|
Use Scenario: Amplifying low-amplitude ultrasound echo signals prior to digitization in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-noise, high-output-current preamplifier interfacing piezoelectric transducer arrays to ADC inputs. Use Value: 100 mA drive capability supports direct connection to 50-Ω ADC drivers; 14 nV/√Hz input noise maximizes dynamic range for weak echo detection. |
Use Scenario: Boosting I/Q baseband signals in software-defined radio (SDR) transceivers before DAC output or upconversion stages. IC Role / Device Role / Timing Role: Wideband, low-distortion gain block operating from DC to 30 MHz with precise amplitude/phase matching. Use Value: Matched differential gain/phase (0.01%/0.01°) minimizes image rejection degradation; 70 MHz bandwidth accommodates wideband LTE/WiMAX modulation spectra. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4031IDGNR | 100 MHz bandwidth, 100 V/µs slew rate, 6.5 mA supply current - lower speed but significantly lower power consumption. | Better suited for battery-powered portable instruments where thermal headroom and quiescent current are constrained. | Select THS4031IDGNR when 100 MHz bandwidth suffices and supply current < 7 mA is required; not drop-in due to different AC performance envelope. |
| THS4081IDGNR | 175 MHz bandwidth, 390 V/µs slew rate, 12.5 mA supply current - higher speed and drive, but increased distortion (−76 dBc THD at 1 MHz). | Preferred for ultra-high-definition video (>60 MHz) or RF IF amplification where bandwidth outweighs THD priority. | Choose THS4081IDGNR for applications demanding >100 MHz small-signal BW; verify THD impact on system SNR before substitution. |
Compared with THS4051IDGNR, THS4031IDGNR trades bandwidth for lower power and THS4081IDGNR trades distortion for higher speed - making THS4051IDGNR the optimal balance for professional video and mid-bandwidth instrumentation requiring both fidelity and drive strength.
Availability
THS4051IDGNR is available at Aetrix Electronics and suitable for broadcast video distribution, high-speed data acquisition, medical imaging signal conditioning, and communications baseband amplification requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for THS4051IDGNR 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 op-amps and signal-chain solutions.
The THS405x family was designed specifically for professional video, imaging, and high-fidelity analog signal conditioning - emphasizing low distortion, precise differential gain/phase, and robust output drive in compact packages.
FAQ
What is the operating temperature range for THS4051IDGNR?
The THS4051IDGNR is rated for industrial operation from −40°C to +85°C (I-suffix), validated across all key parameters including bandwidth, THD, and output drive. This range is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of TI's SLOS238D datasheet, supporting deployment in outdoor broadcast enclosures and factory-floor test equipment.
Does THS4051IDGNR require external compensation for unity-gain stability?
No, THS4051IDGNR is internally compensated and stable at all gains, including unity gain, in both inverting and non-inverting configurations. This is explicitly stated in the device description and functional specifications of the TI datasheet - eliminating the need for external compensation networks and simplifying PCB layout for video and instrumentation designs.
What is the purpose of Pins 1 and 8 (NULL) on THS4051IDGNR?
Pins 1 and 8 are offset null terminals used to adjust input offset voltage via an external potentiometer (typically 10 kΩ) connected between them, with the wiper grounded. This allows precise DC trimming in precision DC-coupled applications such as medical sensor interfaces or calibration circuits where sub-mV offset is critical - as documented in the THS4051IDGNR functional block diagram and application information section.
Can THS4051IDGNR drive a 75-Ω video load directly?
Yes, THS4051IDGNR delivers 100 mA continuous output current and is specified for RL = 150 Ω and RL = 1 kΩ loads. Driving a 75-Ω load is feasible within its safe operating area (SOA), provided supply rails are ≥±12 V and thermal management (via PowerPAD™) is maintained - as confirmed by output voltage swing and short-circuit current specs in the datasheet.
How does THS4051IDGNR compare to THS4052IDGNR in terms of pin compatibility?
THS4051IDGNR (single-channel) and THS4052IDGNR (dual-channel) share identical MSOP-8 (DGN) packaging and pinout for the active channel: Pin 2 = IN−, Pin 3 = IN+, Pin 4 = VCC−, Pin 5 = OUT, Pin 6 = VCC+, Pins 1/8 = NULL. However, THS4052IDGNR uses Pins 1/8 for the second amplifier's null, making it not pin-compatible for single-channel replacement without board revision.
THS4051IDGNR 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:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 240V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 70 MHz
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 8.5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4051IDGNR FAQ
1.How can I place an order for THS4051IDGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051IDGNR 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 THS4051IDGNR reliable?
The price and inventory of THS4051IDGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051IDGNR is usually 5 days.
3.What payment methods are accepted for THS4051IDGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051IDGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051IDGNR?
THS4051IDGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051IDGNR 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 THS4051IDGNR?
For technical support, including THS4051IDGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051IDGNR requirements.
6.How does Aetrix verify that THS4051IDGNR is sourced from the original manufacturer or authorized distributors?
All THS4051IDGNR 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 THS4051IDGNR meets industry standards.
7.What is the process for return or replacement of THS4051IDGNR?
All THS4051IDGNR units undergo pre-shipment inspection (PSI). If there is an issue with THS4051IDGNR, 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 THS4051IDGNR part is unused and in its original packaging.
Return procedure for THS4051IDGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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