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Texas Instruments THS4051IDR
- Part No.:
- THS4051IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4051IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,344
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Product details
Overview
THS4051IDR from Texas Instruments is a single-channel, high-speed voltage-feedback operational amplifier optimized for professional video, imaging, and broadband 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 ±15 V supply - enabling precision analog front-ends in broadcast-grade video routing and high-fidelity test equipment.
For engineers reviewing the THS4051IDR datasheet, THS4051IDR pinout, THS4051IDR application, or THS4051IDR equivalent, this page provides verified electrical specifications, SOIC-8 package layout, video-optimized distortion performance, thermal design guidance, and validated alternatives for signal-chain upgrades requiring stable gain, low group delay, and wide dynamic range across ±4.5 V to ±15 V supplies.
Technical Context
The THS4051IDR employs a dielectrically isolated complementary bipolar process with multi-GHz fT transistors, enabling voltage-feedback architecture with unity-gain stability across inverting and non-inverting configurations. Its internal compensation targets maximum bandwidth/slew-rate trade-off, requiring external series resistance (>20 Ω) when driving >10 pF capacitive loads to maintain ≥45° phase margin.
It features dual null pins (Pin 1 and Pin 8) for offset trimming, rail-to-rail input common-mode range (±13.8 V at ±15 V supply), and robust 150 mA short-circuit current capability. Power supply rejection exceeds 70 dB up to 1 MHz, and CMRR remains ≥70 dB over full temperature range (−40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 70 MHz at G = 1, ±15 V - supports baseband video (NTSC/PAL) and IF signal amplification without roll-off |
| Slew rate | 240 V/µs at ±15 V - enables clean 20-Vpp transient response within 83 ns, critical for pulse fidelity |
| Settling time (0.1%) | 60 ns for 5-V step - ensures sub-pixel timing accuracy in high-resolution imaging digitization |
| Total harmonic distortion | −82 dBc at 1 MHz, RL = 150 Ω - meets SMPTE 253M broadcast linearity requirements |
| Differential gain/phase | 0.01% / 0.01° at NTSC, ±15 V - preserves color fidelity in RGB/YUV component video paths |
| Supply voltage range | ±4.5 V to ±16.5 V - supports legacy ±5 V, standard ±12 V, and high-headroom ±15 V systems |
| Output current (continuous) | ±100 mA typical - drives 150 Ω video lines, multiple ADC inputs, or active filters without gain compression |
Pinout & Package
THS4051IDR is supplied in an 8-pin SOIC (D) package with exposed pad (PowerPAD™ option not applicable to D package per datasheet). Pin 1 and Pin 8 are dedicated null terminals for external offset adjustment; Pin 4 is VCC− (negative supply); Pin 7 is VCC+ (positive supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null input - connects to potentiometer wiper for DC offset calibration |
| 2 | IN− | Inverting input - accepts feedback network for precise gain control and stability |
| 3 | IN+ | Non-inverting input - high-impedance node (1 MΩ) for sensor or reference signal injection |
| 4 | VCC− | Negative supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| 5 | NC | No internal connection - left unconnected; no PCB trace required |
| 6 | OUT | Amplified output - capable of ±3.5 V swing into 150 Ω at ±5 V supply |
| 7 | VCC+ | Positive supply rail - requires local 0.1 µF + 4.7 µF bulk decoupling |
| 8 | NULL | Offset null output - completes trim circuit with Pin 1 for symmetrical offset correction |
Key Features
| Feature | Design Value |
|---|---|
| 70-MHz bandwidth with unity-gain stability | Enables direct replacement of legacy video op-amps (e.g., LM6361) without loop compensation redesign |
| 0.01% differential gain error | Eliminates hue shift in RGB video distribution over long coaxial runs at 1080p60 |
| 240 V/µs slew rate | Supports >100 MHz small-signal edge rates while maintaining <0.1% overshoot in pulse applications |
| ±100 mA output drive | Drives two 75 Ω video loads simultaneously or one 150 Ω load with 20 dB headroom |
| Null pins for offset trimming | Allows <2 mV residual offset after calibration - critical for DC-coupled CCD/TDI sensor interfaces |
Applications
| Broadcast Video Routing | High-Speed Data Acquisition |
|---|---|
Use Scenario: Amplifying and distributing composite or component video signals across multiple monitors in studio switchers. IC Role / Device Role / Timing Role: Buffer and gain stage in analog video path with minimal group delay variation. Use Value: 0.01° differential phase error preserves chroma timing alignment between Y/C channels, preventing color smearing. |
Use Scenario: Driving SAR ADC inputs in automated test equipment sampling at 10–50 MSPS. IC Role / Device Role / Timing Role: Track-and-hold buffer with fast settling to meet aperture uncertainty budgets. Use Value: 60 ns settling time to 0.1% ensures <0.5 LSB error at 14-bit resolution with 20-MHz input tones. |
| Medical Ultrasound Beamforming | RF Signal Chain IF Amplifier |
Use Scenario: Conditioning echo return signals before digitization in portable ultrasound scanners. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block in receive-path analog front-end. Use Value: −82 dBc THD at 1 MHz enables detection of weak echoes buried under strong clutter without harmonic masking. |
Use Scenario: Amplifying 70 MHz IF signals in software-defined radio receivers prior to quadrature demodulation. IC Role / Device Role / Timing Role: Fixed-gain, wideband IF amplifier with flat frequency response. Use Value: 30 MHz 0.1-dB bandwidth ensures amplitude consistency across entire 70 ± 10 MHz channel, minimizing EVM degradation. |
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, 10 nV/√Hz input voltage noise, 12 mA supply current - higher speed but lower output drive (±60 mA) | Better suited for low-noise preamplification where bandwidth >70 MHz is mandatory and load ≤1 kΩ | Select THS4031IDR when SNR >85 dB is required and output current demand is <60 mA |
| OPA695IDBVR | 1.7 GHz bandwidth, 1200 V/µs slew rate, 125 mA output - significantly faster but requires careful layout and external compensation | Targeted at RF/IF gain blocks above 100 MHz; not unity-gain stable without feedback network modification | Choose OPA695IDBVR only for >500 MHz small-signal applications with expert high-frequency design support |
Compared with THS4051IDR, THS4031IDR trades output drive for lower noise and higher bandwidth, making it preferable in low-level signal chains; OPA695IDBVR offers extreme speed but demands rigorous stability analysis and adds layout complexity - neither is pin-compatible, and both require schematic and layout revision.
Availability
THS4051IDR is available at Aetrix Electronics and suitable for broadcast video infrastructure, medical imaging subsystems, and high-speed data acquisition systems requiring stable component supply, extended temperature operation (−40°C to +85°C), and long-term industrial lifecycle support.
Supply support for THS4051IDR 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 engineered specifically for professional video and high-fidelity analog signal conditioning, balancing bandwidth, linearity, output drive, and thermal robustness in industrial and broadcast environments.
FAQ
What is the operating temperature range for THS4051IDR?
The THS4051IDR is rated for operation from −40°C to +85°C (I-suffix grade), validated across all key parameters including bandwidth, distortion, and output swing. This range supports deployment in industrial enclosures, outdoor broadcast gear, and medical devices without derating - confirmed by TI's full-range electrical characteristics tables on pages 6–8 of SLOS238D.
Does THS4051IDR require external compensation for unity-gain stability?
No - the THS4051IDR is internally compensated for unity-gain stability in both inverting and non-inverting configurations, as explicitly stated in the device description and functional specifications. No external compensation components are needed for G ≥ 1, simplifying layout and reducing bill-of-materials cost compared to decompensated high-speed op-amps.
Can THS4051IDR drive a 75-Ω video load directly?
Yes - THS4051IDR delivers ±100 mA continuous output current and maintains 0.01% differential gain into 150 Ω (dual 75 Ω in parallel), meeting SMPTE 253M video line driver requirements. For single 75 Ω loads, use series termination (e.g., 22 Ω) at the output to match impedance and suppress reflections, as recommended in TI's application notes.
What is the purpose of Pins 1 and 8 (NULL) on THS4051IDR?
Pins 1 and 8 are dedicated offset null terminals. Connecting a 10-kΩ potentiometer between them, with its wiper grounded, allows precise adjustment of input offset voltage to <2 mV - essential for DC-coupled applications like CCD sensor interfaces or precision instrumentation where residual offset impacts measurement accuracy.
How does THS4051IDR perform in single-supply operation?
THS4051IDR supports single-supply operation from 9 V to 33 V (e.g., +24 V with ground reference). Input common-mode range extends to within 1.2 V of rails, and output swing reaches ±3.5 V into 150 Ω at +5 V supply. Full performance is maintained only when VCM and VOUT remain within specified limits - refer to Table 1 (page 5) for exact values at 9 V, 12 V, and 24 V.
THS4051IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 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
THS4051IDR FAQ
1.How can I place an order for THS4051IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051IDR 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 THS4051IDR reliable?
The price and inventory of THS4051IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051IDR is usually 5 days.
3.What payment methods are accepted for THS4051IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051IDR?
THS4051IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051IDR 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 THS4051IDR?
For technical support, including THS4051IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051IDR requirements.
6.How does Aetrix verify that THS4051IDR is sourced from the original manufacturer or authorized distributors?
All THS4051IDR 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 THS4051IDR meets industry standards.
7.What is the process for return or replacement of THS4051IDR?
All THS4051IDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4051IDR, 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 THS4051IDR part is unused and in its original packaging.
Return procedure for THS4051IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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