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Texas Instruments THS4051CDGN
- Part No.:
- THS4051CDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4051CDGN.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,993
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Product details
Overview
THS4051CDGN 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%), ±15 V dual-supply operation, and 100 mA output drive - enabling clean amplification of composite video, RGB signals, and fast pulse waveforms in broadcast equipment and test instrumentation.
For engineers reviewing the THS4051CDGN datasheet, THS4051CDGN pinout, THS4051CDGN application, or THS4051CDGN equivalent, this page provides verified electrical specifications, DGN-package terminal mapping, video-optimized performance metrics, thermal design guidance, and validated alternative options for high-fidelity analog signal paths requiring low differential gain/phase error and wide 0.1-dB flatness to 30 MHz.
Technical Context
The THS4051CDGN employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling voltage-feedback architecture with unity-gain stability across inverting and non-inverting configurations. Its internal compensation prioritizes 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 (Pins 1 and 8) for offset trimming, rail-to-rail input common-mode range (±14.3 V at ±15 V supply), and low distortion performance driven by matched NPN/PNP pairs - delivering −82 dBc THD at 1 MHz (RL = 150 Ω) and 0.01% differential gain / 0.01° differential phase for NTSC video at ±15 V.
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 and fast transient response without peaking. |
| Slew rate | 240 V/µs at ±15 V - enables faithful reproduction of 20-V step signals within 83 ns (25–75%). |
| Settling time (0.1%) | 60 ns for 5-V step - meets timing-critical sampling and multiplexing requirements in ADC drivers. |
| Differential gain/phase | 0.01% / 0.01° at NTSC, ±15 V - ensures color fidelity in broadcast-grade video distribution systems. |
| THD @ 1 MHz | −82 dBc (RL = 150 Ω) - suppresses harmonic artifacts in RF IF stages and communication baseband chains. |
| Supply range | ±4.5 V to ±16.5 V dual supply - accommodates legacy ±5 V, ±12 V, and modern ±15 V system rails. |
| Output current | 100 mA typical - drives multiple 75-Ω video lines or low-impedance ADC inputs without gain loss. |
| Input voltage noise | 14 nV/√Hz at 10 kHz - preserves SNR in low-level sensor signal conditioning before digitization. |
Pinout & Package
THS4051CDGN uses an 8-pin PowerPAD™ MSOP (DGN) package with exposed thermal pad soldered to PCB ground plane for enhanced thermal dissipation (θJA = 58.4°C/W, θJC = 4.7°C/W). The package supports tape-and-reel delivery (add 'R' suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | Offset null adjustment input (connect external potentiometer wiper; pins 1 & 8 form null pair). |
| 2 | IN− | Inverting input - high-impedance node (1 MΩ) for feedback network connection in inverting amps. |
| 3 | IN+ | Non-inverting input - accepts DC-biased video sync pulses or sensor reference signals. |
| 4 | VCC− | Negative supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 5 | NC | No internal connection - leave unconnected; not bonded or functional. |
| 6 | VCC+ | Positive supply rail - requires local 0.1 µF + 10 µF bulk capacitance for high-frequency stability. |
| 7 | OUT | Amplified output - capable of ±13.6 V swing into 1 kΩ; series resistor needed for CL >10 pF. |
| 8 | NULL | Offset null adjustment input - completes trim circuit with Pin 1 per datasheet Figure 42. |
Key Features
| Feature | Design Value |
|---|---|
| 70-MHz bandwidth at G = 1 | Enables direct amplification of 30-MHz 0.1-dB flat video bandwidth without cascading stages. |
| 0.01% differential gain error | Maintains consistent color saturation across NTSC/PAL video sources in multi-channel routing gear. |
| 240 V/µs slew rate | Prevents slew-induced distortion on fast-rising digital clock edges or pulse-width modulated signals. |
| PowerPAD™ thermal enhancement | Enables 2.14 W power dissipation at TA = 25°C - critical for sustained video line-driver operation. |
| Stable at all gains | Eliminates need for external compensation networks in both inverting and non-inverting topologies. |
| ±15 V supply compatibility | Interoperates with legacy industrial and broadcast equipment using standard ±15 V analog rails. |
Applications
| Broadcast Video Distribution | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Amplifying and distributing composite NTSC video signals across 4+ 75-Ω coaxial outputs in studio switchers. IC Role / Device Role / Timing Role: Single-ended video buffer with DC restoration and gain control. Use Value: 0.01% differential gain/phase preserves color accuracy; 100 mA drive supports simultaneous multi-load sourcing without external buffers. |
Use Scenario: Driving the input of a 12-bit, 100-MSPS ADC in automated test equipment capturing fast transients. IC Role / Device Role / Timing Role: Low-noise, fast-settling ADC driver with 60 ns settling to 0.1%. Use Value: 70 MHz bandwidth captures harmonics beyond Nyquist; −82 dBc THD prevents spurious tones from corrupting spectral analysis. |
| Medical Ultrasound Beamforming | RF/IF Signal Conditioning |
|
Use Scenario: Amplifying low-amplitude echo return signals from piezoelectric transducers prior to digitization. IC Role / Device Role / Timing Role: Low-noise, wideband preamplifier in analog front-end channel. Use Value: 14 nV/√Hz input noise maximizes dynamic range; rail-to-rail input allows direct coupling of bipolar echo waveforms. |
Use Scenario: Buffering and level-shifting IF signals (1–50 MHz) between mixer and demodulator stages in SDR receivers. IC Role / Device Role / Timing Role: High-linearity IF amplifier with precise gain control and impedance matching. Use Value: −89 dBc THD at 1 MHz (RL = 1 kΩ) minimizes intermodulation distortion; 30 MHz 0.1-dB flatness ensures amplitude consistency across channel bandwidth. |
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 |
|---|---|---|---|
| THS4031CDGN | 100 MHz bandwidth, 100 V/µs slew rate, lower 3.3-nV/√Hz voltage noise - but only 30 mA output drive. | Better for low-noise preamp stages; insufficient for multi-load video distribution or heavy capacitive loads. | Select THS4031CDGN when noise dominates over drive strength and bandwidth >70 MHz is required. |
| THS4081CDGN | 175 MHz bandwidth, 235 V/µs slew rate, 12.5 mA supply current - but 0.05% differential gain error and no PowerPAD™. | Higher speed for IF sampling; degraded video fidelity and higher thermal resistance (θJA = 87.7°C/W). | Select THS4081CDGN for wideband RF applications where video accuracy is secondary to raw bandwidth. |
Compared with THS4051CDGN, THS4031CDGN trades output drive and video linearity for lower noise and higher bandwidth, while THS4081CDGN sacrifices thermal performance and differential gain accuracy to achieve greater small-signal bandwidth - making THS4051CDGN the optimal choice for video-critical, thermally constrained, or multi-load analog signal paths.
Availability
THS4051CDGN is available at Aetrix Electronics and suitable for broadcast video infrastructure, medical imaging front-ends, and high-speed data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for THS4051CDGN 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 connectivity technologies, with decades of expertise in high-performance op-amps and precision signal chain solutions.
The THS405x family was engineered specifically for professional video, imaging, and high-fidelity analog signal conditioning - balancing bandwidth, linearity, output drive, and thermal robustness in compact surface-mount packages.
FAQ
What is the maximum safe operating junction temperature for THS4051CDGN?
The absolute maximum junction temperature for THS4051CDGN is 150°C. To ensure reliability, design must limit power dissipation using the DGN package's thermal metrics: θJA = 58.4°C/W and θJC = 4.7°C/W. At TA = 25°C, maximum allowable power is 2.14 W. Derate linearly above 25°C ambient using the dissipation rating table in the datasheet. THS4051CDGN thermal performance depends critically on proper PowerPAD™ soldering to a large copper ground plane.
Can THS4051CDGN operate from a single +12 V supply?
Yes, THS4051CDGN supports single-supply operation from +9 V to +32 V. When using +12 V, configure the input common-mode range between +1.5 V and +10.5 V (VICR = +1.5 V to +10.5 V), bias the non-inverting input at mid-supply (e.g., +6 V), and AC-couple the output if DC level shift is required. Note that slew rate drops to 200 V/µs and full-power bandwidth reduces versus ±15 V operation - verify performance with actual signal conditions in THS4051CDGN SPICE models or bench testing.
Does THS4051CDGN require external compensation for unity-gain stability?
No, THS4051CDGN is internally compensated and stable at all closed-loop gains, including unity gain, in both inverting and non-inverting configurations. However, its compensation prioritizes bandwidth and slew rate - so driving capacitive loads >10 pF directly at the output will degrade phase margin and cause ringing. Always insert a 20–100 Ω series resistor between THS4051CDGN output and capacitive load to isolate the amplifier from reactive feedback.
How does THS4051CDGN achieve 0.01% differential gain in video applications?
THS4051CDGN achieves 0.01% differential gain through matched complementary bipolar transistor pairs fabricated on a 30-V dielectrically isolated process, ensuring symmetrical clipping and minimal gain variation across luminance/chrominance frequency bands. This is measured under NTSC 40 IRE modulation at ±15 V supply with G = 2. Performance holds across temperature (0°C to 70°C) and load count (up to four 150-Ω loads), as confirmed in Figures 34–35 of the THS4051CDGN datasheet.
What is the purpose of Pins 1 and 8 (NULL) on THS4051CDGN?
Pins 1 and 8 on THS4051CDGN are dedicated offset null terminals used together to adjust input offset voltage to <1 mV. Connect a 10-kΩ potentiometer across Pins 1 and 8, with the wiper tied to VCC− (Pin 4); adjusting the potentiometer balances internal input stage mismatches. This is essential in DC-coupled precision applications like medical sensor interfaces or calibration circuits where THS4051CDGN's typical 2.5–10 mV VOS would introduce measurable error.
THS4051CDGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- 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:
- 100 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4051CDGN FAQ
1.How can I place an order for THS4051CDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051CDGN 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 THS4051CDGN reliable?
The price and inventory of THS4051CDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051CDGN is usually 5 days.
3.What payment methods are accepted for THS4051CDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051CDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051CDGN?
THS4051CDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051CDGN 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 THS4051CDGN?
For technical support, including THS4051CDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051CDGN requirements.
6.How does Aetrix verify that THS4051CDGN is sourced from the original manufacturer or authorized distributors?
All THS4051CDGN 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 THS4051CDGN meets industry standards.
7.What is the process for return or replacement of THS4051CDGN?
All THS4051CDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4051CDGN, 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 THS4051CDGN part is unused and in its original packaging.
Return procedure for THS4051CDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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