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Texas Instruments THS4051IDRG4
- Part No.:
- THS4051IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4051IDRG4.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,689
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Product details
Overview
THS4051IDRG4 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 small-signal bandwidth (G = 1), 240 V/µs slew rate, 60 ns settling time (0.1%), ±100 mA output drive, and 0.01% differential gain / 0.01° differential phase error at NTSC video frequencies - enabling precision analog front-end amplification in broadcast-grade SD/HD video routing and reconstruction circuits.
For engineers reviewing the THS4051IDRG4 datasheet, THS4051IDRG4 pinout, THS4051IDRG4 application, or THS4051IDRG4 equivalent, this device is selected for demanding AC-coupled gain stages requiring wide 0.1-dB flatness (30 MHz), ultra-low harmonic distortion (−82 dBc @ 1 MHz, RL = 150 Ω), stable operation at all gains, and dual-supply flexibility (±4.5 V to ±16.5 V).
Technical Context
The THS4051IDRG4 employs a dielectrically isolated complementary bipolar process with GHz-class fT transistors, enabling its voltage-feedback architecture to achieve simultaneous high bandwidth, fast settling, and low distortion without external compensation. Its internal nulling pins (Pin 1 and Pin 8) support precise DC offset trimming in precision video chains.
It operates stably in both inverting and non-inverting configurations across all closed-loop gains, with input common-mode range extending to ±14.3 V (VCC = ±15 V) and output swing up to ±13.6 V into 1 kΩ - making it suitable for high-voltage, high-fidelity analog signal paths where rail-to-rail operation is not required but headroom and linearity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 70 MHz at G = 1, ±15 V supply - supports full-bandwidth amplification of HD video baseband signals without attenuation. |
| Slew rate | 240 V/µs at ±15 V - ensures faithful reproduction of fast transient edges in composite video and pulse-based imaging waveforms. |
| Settling time (0.1%) | 60 ns for 5-V step - enables accurate multi-level video DAC output reconstruction and fast data acquisition sampling. |
| Differential gain/phase | 0.01% / 0.01° at NTSC, ±15 V - meets SMPTE 170M broadcast video fidelity requirements for color accuracy. |
| Total harmonic distortion | −82 dBc @ 1 MHz, RL = 150 Ω - minimizes spurious content in RF-adjacent analog signal chains and IF amplifiers. |
| Supply voltage range | ±4.5 V to ±16.5 V dual supply - allows integration into legacy ±5 V, ±12 V, and ±15 V systems without level-shifting. |
| Output current (typ) | 100 mA per channel - drives multiple 75-Ω video loads or low-impedance ADC inputs directly. |
Pinout & Package
THS4051IDRG4 is packaged in an 8-pin SOIC (D package) with exposed pad thermal enhancement. The device uses standard op-amp pinout alignment compatible with industry layout practices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null adjustment terminal (connects to external trim potentiometer wiper for DC calibration). |
| 2 | IN− | Inverting input - accepts feedback network and sets closed-loop gain in inverting configuration. |
| 3 | IN+ | Non-inverting input - reference node for single-ended or differential input signal injection. |
| 4 | VCC− | Negative supply rail - must be decoupled locally with ≥0.1 µF ceramic capacitor to ground. |
| 5 | OUT | Amplified output - capable of sourcing/sinking ±100 mA into resistive or capacitive loads. |
| 6 | VCC+ | Positive supply rail - requires local decoupling; power supply rejection ratio exceeds 70 dB up to 1 MHz. |
| 7 | NC | No internal connection - left unconnected; no electrical function or thermal role. |
| 8 | NULL | Second offset null terminal - completes external trim circuit with Pin 1 for balanced nulling. |
Key Features
| Feature | Design Value |
|---|---|
| Stable at all gains | Internally compensated for unity-gain and higher closed-loop configurations - eliminates need for external compensation networks in video gain blocks. |
| 0.1-dB flatness to 30 MHz | Preserves amplitude integrity across entire SD/HD video baseband spectrum (DC–30 MHz), critical for chroma/luma separation fidelity. |
| Low distortion at 1 MHz | −82 dBc THD into 150 Ω - reduces intermodulation artifacts in multi-tone communication IF stages and broadband test equipment. |
| High output drive | 100 mA continuous output current - enables direct driving of coaxial cables, multiple video receivers, or low-RIN ADC buffers without external boost stages. |
| Wide supply range | Operates from ±4.5 V to ±16.5 V - supports reuse across legacy industrial, broadcast, and instrumentation platforms with varying rail voltages. |
Applications
| SD/HD Video Reconstruction | Broadcast Signal Distribution |
|---|---|
Use Scenario: Reconstructing RGB or YPbPr video signals after digital-to-analog conversion in studio monitors or video switchers. IC Role / Device Role / Timing Role: Final-stage buffer and gain amplifier ensuring flat frequency response and minimal color timing skew. Use Value: 0.01% differential gain error preserves hue fidelity across NTSC/PAL standards; 30-MHz 0.1-dB flatness maintains sharp edge definition in 1080i/720p signals. |
Use Scenario: Driving multiple 75-Ω coaxial outputs from a single video source in broadcast control rooms. IC Role / Device Role / Timing Role: High-current distribution amplifier with matched channel delay and gain. Use Value: ±100 mA output drive supports up to four parallel 75-Ω loads; low crosstalk (<−57 dB) prevents interference between routed video streams. |
| Medical Imaging Front-End | Test & Measurement Signal Conditioning |
Use Scenario: Amplifying low-amplitude ultrasound or MRI sensor outputs prior to digitization. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate gain stage preserving transient fidelity of pulsed echo waveforms. Use Value: 240 V/µs slew rate captures microsecond-scale acoustic reflections without slew-induced distortion; −82 dBc THD avoids masking weak diagnostic signals. |
Use Scenario: Building programmable gain stages in automated test equipment (ATE) for RF component characterization. IC Role / Device Role / Timing Role: Wideband, stable amplifier in calibrated signal path with known gain/phase response. Use Value: 70-MHz bandwidth and 60-ns settling enable fast step-response testing; ±16.5 V max supply accommodates high-dynamic-range stimulus generation. |
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 |
|---|---|---|---|
| THS4031IDR | 100 MHz bandwidth, lower noise (9 nV/√Hz), but only 50 mA output drive and no NULL pins. | Better suited for low-noise preamplification; unsuitable for multi-load video distribution due to limited drive capability. | Select THS4031IDR when input-referred noise dominates system SNR and load current ≤50 mA. |
| THS4081IDR | 175 MHz bandwidth, 1.8 mA supply current (vs. 8.5 mA), but reduced output drive (60 mA) and higher THD (−72 dBc @ 1 MHz). | Optimized for portable/battery-powered instruments; insufficient for broadcast video fidelity requirements. | Choose THS4081IDR only when bandwidth >100 MHz is mandatory and power budget is constrained below 2 mA per channel. |
Compared with THS4031IDR and THS4081IDR, the THS4051IDRG4 uniquely balances high output drive (100 mA), broadcast-grade video linearity (0.01% DG/DP), and robust stability across all gains - making it the preferred choice for fixed-power, multi-load, high-fidelity analog signal routing where distortion and drive strength are primary constraints.
Availability
THS4051IDRG4 is available at Aetrix Electronics and suitable for SD/HD video reconstruction, broadcast signal distribution, medical imaging front-ends, and test & measurement signal conditioning requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for THS4051IDRG4 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, embedded processing, and high-performance signal chain solutions with over 50 years of amplifier design heritage.
The THS405x family was engineered specifically for professional video, imaging, and high-fidelity communication systems - prioritizing bandwidth-flatness tradeoffs, differential gain/phase accuracy, and robust output drive over ultra-low power or rail-to-rail operation.
FAQ
What is the operating temperature range for the THS4051IDRG4?
The THS4051IDRG4 is rated for industrial operation from −40°C to +85°C (I-suffix grade). This range is validated across all key specifications including bandwidth, slew rate, and differential gain/phase error - ensuring consistent performance in broadcast equipment racks, medical imaging enclosures, and factory-floor test systems without derating.
Does the THS4051IDRG4 require external compensation for unity-gain stability?
No, the THS4051IDRG4 is internally compensated and remains stable at unity gain and all higher closed-loop gains in both inverting and non-inverting configurations. This eliminates the need for external compensation capacitors or feedback network adjustments - simplifying PCB layout and reducing bill-of-materials cost in video gain blocks and instrumentation amplifiers.
Can the THS4051IDRG4 drive a 75-Ω video load directly?
Yes, the THS4051IDRG4 delivers ±100 mA output current and maintains specified distortion and settling performance into 75-Ω loads. When driving 75-Ω coaxial cables, use a series 20-Ω resistor at the output (per TI application guidance) to prevent ringing caused by capacitive loading - preserving signal integrity in SDI and analog video transmission paths.
What is the purpose of Pins 1 and 8 (NULL) on the THS4051IDRG4?
Pins 1 and 8 are offset null terminals used to minimize input offset voltage via an external 10-kΩ potentiometer connected between them, with the wiper grounded. This feature enables sub-millivolt DC calibration in precision video reconstruction and medical sensor amplification - critical for eliminating static color shifts or baseline drift in long-integration imaging systems.
How does the THS4051IDRG4 compare to the THS4051CDRG4 in terms of performance?
The THS4051IDRG4 and THS4051CDRG4 share identical AC and DC specifications except for temperature range: the 'I' grade operates from −40°C to +85°C, while the 'C' grade is limited to 0°C to +70°C. All key parameters - 70 MHz bandwidth, 240 V/µs slew rate, 0.01% differential gain, and −82 dBc THD - are guaranteed across their respective full temperature ranges per TI's datasheet test conditions.
THS4051IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 100 mA
- 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-SOIC
THS4051IDRG4 FAQ
1.How can I place an order for THS4051IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051IDRG4 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 THS4051IDRG4 reliable?
The price and inventory of THS4051IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051IDRG4 is usually 5 days.
3.What payment methods are accepted for THS4051IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051IDRG4?
THS4051IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051IDRG4 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 THS4051IDRG4?
For technical support, including THS4051IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051IDRG4 requirements.
6.How does Aetrix verify that THS4051IDRG4 is sourced from the original manufacturer or authorized distributors?
All THS4051IDRG4 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 THS4051IDRG4 meets industry standards.
7.What is the process for return or replacement of THS4051IDRG4?
All THS4051IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4051IDRG4, 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 THS4051IDRG4 part is unused and in its original packaging.
Return procedure for THS4051IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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