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Texas Instruments THS4051ID
- Part No.:
- THS4051ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4051ID.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,662
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Product details
Overview
THS4051ID 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%), ±100 mA output drive, and 0.01% differential gain error - enabling precision analog signal amplification in broadcast-grade video routing and high-resolution ADC/DAC buffer stages.
For engineers reviewing the THS4051ID datasheet, THS4051ID pinout, THS4051ID application, or THS4051ID equivalent, this device is selected for demanding AC-coupled wideband gain blocks where low distortion (−82 dBc THD at 1 MHz), rail-to-rail output swing capability (±13.6 V into 1 kΩ), and stable operation across ±4.5 V to ±16.5 V supplies are critical design requirements.
Technical Context
The THS4051ID employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling voltage-feedback architecture with unity-gain stability in both inverting and non-inverting configurations. Its internal compensation targets maximum small-signal bandwidth and slew rate, requiring external series output resistance (>20 Ω) when driving capacitive loads >10 pF to maintain phase margin.
It features dual null pins (Pin 1 and Pin 8) for precise offset trimming, a high-impedance input stage (1 MΩ Rin, 1.5 pF Cin), and robust power supply rejection (70–84 dB) across 10 Hz–10 MHz. The amplifier operates over −40°C to +85°C and draws only 8.5 mA per channel at ±15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 70 MHz at G = 1 (−3 dB); supports full HD video baseband without attenuation |
| Slew rate | 240 V/µs at ±15 V; enables clean 20-V step response within 60 ns |
| THD | −82 dBc @ 1 MHz, RL = 150 Ω; ensures minimal harmonic contamination in RF IF chains |
| Differential gain/phase | 0.01% / 0.01° @ NTSC, ±15 V; meets SMPTE 253M broadcast video fidelity standards |
| Supply range | ±4.5 V to ±16.5 V dual supply; accommodates legacy ±5 V and high-dynamic-range ±15 V systems |
| Output current | ±100 mA typical; drives multiple 75-Ω video lines or low-impedance ADC inputs directly |
| Input voltage noise | 14 nV/√Hz @ 10 kHz; preserves SNR in low-level sensor signal amplification |
Pinout & Package
THS4051ID is available in SOIC-8 (D package) and MSOP-8 (DGN package), both rated for −40°C to +85°C operation. The D package uses standard JEDEC SOIC footprint; DGN offers thermal-enhanced PowerPAD™ for improved power dissipation (θJA = 58.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null adjustment terminal (connect to potentiometer wiper for fine-tuning VOS) |
| 2 | IN− | Inverting input; high-impedance node (1 MΩ, 1.5 pF) for feedback network connection |
| 3 | IN+ | Non-inverting input; matched to IN− for common-mode rejection (CMRR ≥ 70 dB) |
| 4 | VCC− | Negative supply rail; must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| 5 | NC | No internal connection; leave unconnected (not used in SOIC-8 or MSOP-8 variants) |
| 6 | OUT | Amplified output; capable of ±13.6 V swing into 1 kΩ and ±100 mA sourcing/sinking |
| 7 | VCC+ | Positive supply rail; requires local 0.1 µF ceramic + 10 µF bulk capacitance |
| 8 | NULL | Second offset null terminal; used with Pin 1 for symmetric trim configuration |
Key Features
| Feature | Design Value |
|---|---|
| Stable at all gains | Unity-gain stable in both inverting and non-inverting topologies without external compensation |
| Video-optimized linearity | 0.01% differential gain and 0.01° differential phase errors meet broadcast video specifications |
| High output drive | ±100 mA output current enables direct driving of multiple 75-Ω coaxial cables or ADC reference buffers |
| Wide supply flexibility | Operates from ±4.5 V to ±16.5 V dual supply or 9 V to 33 V single supply for system-level voltage scalability |
| Low distortion | −82 dBc THD at 1 MHz into 150 Ω supports clean signal integrity in IF and baseband stages |
Applications
| Professional Video Routing | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Amplifying and distributing composite NTSC/PAL video signals across multi-monitor broadcast control rooms. IC Role / Device Role / Timing Role: Buffer and gain stage between video decoder and distribution amplifiers, maintaining signal fidelity across 0–30 MHz bandwidth. Use Value: 0.01% differential gain error prevents hue shifts; 30 MHz 0.1-dB flatness ensures accurate chroma/luma amplitude reproduction. |
Use Scenario: Driving the input of 14-bit, 100-MSPS ADCs in radar digitizers and medical ultrasound front-ends. IC Role / Device Role / Timing Role: Wideband buffer isolating sensitive ADC inputs from source impedance variations and PCB trace reflections. Use Value: 60 ns settling time (0.1%) guarantees full-scale accuracy before ADC sampling; ±100 mA drive handles 150-Ω termination loads. |
| Communications IF Amplification | Test & Measurement Signal Generation |
|
Use Scenario: Intermediate-frequency amplification in 4G/LTE base station transceivers operating at 70–200 MHz IF bands. IC Role / Device Role / Timing Role: Fixed-gain post-mixer amplifier with low group delay variation across IF passband. Use Value: 70 MHz bandwidth and −82 dBc THD minimize adjacent-channel interference; PSRR > 70 dB rejects supply noise coupling into IF path. |
Use Scenario: Output stage of arbitrary waveform generators producing high-fidelity sine, square, and pulse waveforms up to 20 MHz. IC Role / Device Role / Timing Role: Final gain and drive stage delivering low-distortion, high-slew-rate output to 50-Ω or high-Z loads. Use Value: 240 V/µs slew rate prevents slew-induced distortion on fast edges; ±13.6 V swing into 1 kΩ enables 27 dBm output power capability. |
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 |
|---|---|---|---|
| THS4031ID | 100 MHz bandwidth, 12 nV/√Hz input noise, 7.5 mA supply current - higher speed but lower output drive (±60 mA) | Better suited for low-noise pre-amplification than video line driving due to reduced output current | Select THS4031ID when bandwidth >70 MHz is required and load current <60 mA; avoid for multi-75-Ω video fanout |
| THS4081ID | 175 MHz bandwidth, 1.8 mA supply current, ±30 mA output - ultra-low power, lower drive and distortion performance (−72 dBc THD) | Targeted at battery-powered portable instrumentation, not broadcast or high-fidelity signal paths | Choose THS4081ID only for space-constrained, low-power designs where THD > −75 dBc and drive <30 mA are acceptable |
Compared with THS4051ID, THS4031ID trades output drive and video linearity for higher bandwidth and lower noise, while THS4081ID sacrifices drive strength, distortion, and video specs for dramatic power reduction - making THS4051ID the optimal balance for professional video and medium-power wideband analog signal chains.
Availability
THS4051ID is available at Aetrix Electronics and suitable for professional video routing, high-speed data acquisition, communications IF amplification, and test & measurement signal generation requiring stable component supply across industrial temperature ranges.
Supply support for THS4051ID 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 THS4051ID belongs to TI's THS405x family of high-speed voltage-feedback amplifiers, designed specifically for professional video, imaging, and wideband communication systems demanding low distortion, high output drive, and precision DC/AC performance.
FAQ
What is the operating temperature range for the THS4051ID?
The THS4051ID is specified for operation from −40°C to +85°C (I-suffix grade), making it suitable for industrial and commercial environments including broadcast equipment racks and outdoor communications enclosures. Electrical characteristics are guaranteed across this full range, with key parameters like THD, bandwidth, and output swing validated at both extremes per TI SLOS238D datasheet Section 6.
Does the THS4051ID require external compensation for stability?
No - the THS4051ID is internally compensated and unity-gain stable in both inverting and non-inverting configurations. However, when driving capacitive loads >10 pF (e.g., long cables or ADC input capacitance), a series resistor ≥20 Ω must be placed between the THS4051ID output pin and the load to preserve phase margin and prevent ringing, as documented in the "Driving a Capacitive Load" section of the THS4051ID datasheet.
Can the THS4051ID be used with single-supply operation?
Yes - the THS4051ID supports single-supply operation from 9 V to 33 V. Input common-mode range extends to within 1.2 V of each rail (e.g., 3.8 V to 11.2 V at VCC = 15 V), and output swing reaches within 1.4 V of each rail (e.g., 1.6 V to 13.4 V). For rail-to-rail input/output performance, external level-shifting or biasing is required, as the THS4051ID does not feature rail-to-rail input or output architecture.
What is the purpose of Pins 1 and 8 (NULL) on the THS4051ID?
Pins 1 and 8 are offset null terminals used to minimize input offset voltage (VOS ≤ 10 mV typical) via an external potentiometer (typically 10 kΩ) connected between them, with the wiper tied to VCC−. This adjustment is especially valuable in DC-coupled precision gain stages where VOS drift contributes directly to output error - a capability not found in many high-speed op-amps, and explicitly supported in the THS4051ID's SOIC-8 and MSOP-8 packages.
How does the THS4051ID compare to the dual-channel THS4052ID in terms of performance?
The THS4051ID and THS4052ID share identical per-channel AC and DC specifications - same 70 MHz bandwidth, 240 V/µs slew rate, −82 dBc THD, and −40°C to +85°C rating. The THS4052ID integrates two independent THS4051ID cores in one package (SOIC-8 or MSOP-8), offering space savings for dual-path applications like stereo audio or differential signaling, but with no per-channel performance trade-off versus the single-channel THS4051ID.
THS4051ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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-SOIC
THS4051ID FAQ
1.How can I place an order for THS4051ID through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051ID 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 THS4051ID reliable?
The price and inventory of THS4051ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051ID is usually 5 days.
3.What payment methods are accepted for THS4051ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051ID?
THS4051ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051ID 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 THS4051ID?
For technical support, including THS4051ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051ID requirements.
6.How does Aetrix verify that THS4051ID is sourced from the original manufacturer or authorized distributors?
All THS4051ID 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 THS4051ID meets industry standards.
7.What is the process for return or replacement of THS4051ID?
All THS4051ID units undergo pre-shipment inspection (PSI). If there is an issue with THS4051ID, 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 THS4051ID part is unused and in its original packaging.
Return procedure for THS4051ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4051ID Tags
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