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Texas Instruments THS4211DGNR
- Part No.:
- THS4211DGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4211DGNR.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,695
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Product details
Overview
THS4211DGNR from Texas Instruments is a unity-gain stable, voltage-feedback operational amplifier optimized for high-linearity signal conditioning in wideband analog systems. It delivers 970 V/µs slew rate, –90 dBc THD at 30 MHz (RL = 499 Ω), 130-MHz 0.1-dB bandwidth (G = 2), ±5 V operation, and drives 170 mA into low-impedance loads - enabling use as an ADC driver or video line driver in instrumentation and communications infrastructure.
For engineers reviewing the THS4211DGNR datasheet, THS4211DGNR pinout, THS4211DGNR application, or THS4211DGNR equivalent, key selection criteria include its distortion performance at 30–70 MHz, thermal behavior in MSOP-8 PowerPAD™ package, output drive capability into 150 Ω, and compatibility with ±2.5 V to ±7.5 V dual supplies or 5–15 V single supply.
Technical Context
The THS4211DGNR employs a voltage-feedback architecture with internal compensation for unity-gain stability, eliminating external phase compensation components. Its high slew rate and wide small-signal bandwidth (1 GHz typical) stem from optimized transconductance and low-output-impedance stages, supporting fast transient response without peaking in G ≥ 1 configurations.
Designed for demanding AC-coupled and DC-coupled signal paths, it maintains differential gain of 0.007% and differential phase of 0.003° under NTSC/PAL video conditions, while harmonic distortion remains below –80 dBc at 30 MHz with 2 VPP output into 150 Ω - confirming suitability for high-fidelity baseband and IF amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 1 GHz at G = 1, enabling direct RF sampling front-end buffering up to UHF |
| Slew rate | 970 V/µs at ±5 V, supporting full-scale 2 VPP steps in ≤22 ns (0.1%) |
| THD @ 30 MHz | –90 dBc (2nd/3rd harmonic, RL = 499 Ω), critical for high-SNR data acquisition |
| 0.1-dB flat bandwidth | 130 MHz at G = 2, ensuring amplitude fidelity across multi-MHz video or comms bands |
| Output current | 170 mA sink / 220 mA source (RL = 10 Ω), driving coaxial cables or multiple 150 Ω loads |
| Input voltage noise | 7 nV/√Hz at 1 MHz, preserving SNR in low-level sensor interface stages |
| Supply range | ±2.5 V to ±7.5 V dual or 5 V to 15 V single, supporting mixed-voltage system integration |
Pinout & Package
The THS4211DGNR is housed in an 8-pin MSOP package with exposed PowerPAD™ thermal pad (DGN), requiring solder connection to PCB ground plane for thermal management and optimal distortion performance. Package dimensions: 3.0 mm × 3.0 mm × 0.8 mm, pitch 0.65 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NC | No connect | Internally unused; must remain unconnected per TI design guidelines |
| 2 IN− | Inverting input | Differential input node; high-impedance (4 MΩ), low capacitance (0.2 pF) |
| 3 IN+ | Non-inverting input | Differential input node; matched to IN− for CMRR > 50 dB up to 10 MHz |
| 4 VS− | Negative supply rail | Connect to −2.5 V to −7.5 V or ground (in single-supply); decoupling required |
| 5 NC | No connect | Internally unused; must remain unconnected |
| 6 VS+ | Positive supply rail | Connect to +2.5 V to +7.5 V or +5 V to +15 V; decoupling required |
| 7 VOUT | Amplifier output | Capable of ±4.0 V swing into 499 Ω; low 0.3 Ω closed-loop impedance at 1 MHz |
| 8 NC | No connect | Internally unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability | Operates stably at G = 1 without external compensation, reducing BOM count and layout sensitivity |
| PowerPAD™ thermal enhancement | θJC = 4.7 °C/W enables 1.71 W power dissipation at TA ≤ +25°C when PowerPAD is grounded |
| Low distortion at high frequency | –82 dBc 3rd-harmonic at 30 MHz (G = 2, VO = 2 VPP, RL = 499 Ω) supports 12+ bit ADC preamp accuracy |
| High output drive | Delivers 170 mA sinking current into 10 Ω, sufficient for driving 150 Ω video lines with multiple loads |
| Video-optimized linearity | 0.007% differential gain / 0.003° differential phase meets broadcast-grade NTSC/PAL requirements |
Applications
| High-Linearity ADC Preamplifier | Differential-to-Single-Ended Conversion |
|---|---|
Use Scenario: Conditioning low-amplitude sensor outputs before digitization in 12–14-bit SAR or pipeline ADCs operating at 10–50 MSPS. IC Role / Device Role / Timing Role: Single-ended buffer and gain stage with minimal added noise and distortion, preserving ENOB across 1–30 MHz bandwidth. Use Value: 7 nV/√Hz input voltage noise and –90 dBc THD ensure >72 dB SNR at 30 MHz, directly extending effective resolution. | Use Scenario: Converting differential IF signals from mixers or ADCs to single-ended form for downstream filtering or detection. IC Role / Device Role / Timing Role: High-speed, low-phase-error active balun with precise gain matching between IN+ and IN− paths. Use Value: 0.003° differential phase error preserves I/Q orthogonality in 70 MHz IF receivers, minimizing image rejection degradation. |
| DAC Output Buffer | Active Filtering |
Use Scenario: Driving resistive or reactive loads from high-speed DACs (e.g., 16-bit, 100 MSPS) in waveform generation or communications transmitters. IC Role / Device Role / Timing Role: Low-output-impedance current booster that maintains monotonicity and settling within 55 ns (0.01%) after full-scale transitions. Use Value: 970 V/µs slew rate and 22 ns 0.1% settling enable clean reconstruction of multi-tone waveforms up to 20 MHz. | Use Scenario: Implementing 2nd- or 3rd-order active filters in anti-aliasing or channel-select stages for software-defined radios. IC Role / Device Role / Timing Role: Gain block in Sallen-Key or multiple-feedback topologies with minimal group delay variation. Use Value: 130-MHz 0.1-dB flatness ensures <0.1 dB passband ripple in 20 MHz low-pass filters, avoiding signal distortion. |
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 |
|---|---|---|---|
| THS4215DGNR | Identical AC/DC specs plus integrated power-down pin (PD); quiescent current drops to ≤900 µA in shutdown | Required where dynamic power gating is needed (e.g., battery-powered test equipment, burst-mode receivers) | Select THS4215DGNR only if power-down functionality is mandatory; pinout differs (PD replaces NC on Pin 1) |
| LMH6629MA/NOPB | Lower 5.3 nV/√Hz noise, but –72 dBc THD at 30 MHz and 500 MHz GBW; not unity-gain stable | Suitable for noise-critical, moderate-distortion applications (e.g., photodiode TIA front-end), not for G = 1 video/ADC buffering | Choose LMH6629MA/NOPB only when ultra-low noise dominates over distortion and stability requirements |
Compared with THS4211DGNR, THS4215DGNR adds power-down control at the cost of one dedicated pin, while LMH6629MA/NOPB trades distortion and stability for lower noise - making THS4211DGNR the optimal choice for unity-gain, low-THD, thermally constrained wideband buffering.
Availability
THS4211DGNR is available at Aetrix Electronics and suitable for high-speed data acquisition, video signal routing, and communications infrastructure requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for THS4211DGNR 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 amplifiers and precision signal chains.
The THS4211 belongs to TI's high-speed voltage-feedback op-amp product line, engineered specifically for wideband, low-distortion applications including ADC/DAC interfacing, video signal processing, and IF/RF signal conditioning.
FAQ
What is the maximum recommended junction temperature for continuous operation of the THS4211DGNR?
The THS4211DGNR has a maximum junction temperature limit of +125°C for continuous operation to ensure long-term reliability and stable distortion performance. Exceeding this temperature may cause measurable THD degradation and accelerated parameter drift. Thermal design must maintain TJ ≤ +125°C using the PowerPAD™ thermal pad connected to a solid copper plane, especially under high-output-current conditions.
Does the THS4211DGNR require external compensation for unity-gain stability?
No, the THS4211DGNR is internally compensated for unity-gain stability and operates robustly at G = 1 without external components. This eliminates phase-compensation networks, reduces board area, and avoids tuning sensitivity - confirmed by TI's unity-gain frequency response plots showing no peaking up to 1 GHz in the THS4211DGNR datasheet.
Can the THS4211DGNR operate from a single 5-V supply?
Yes, the THS4211DGNR supports single-supply operation from 5 V to 15 V. At VS = 5 V, it delivers 800 V/µs slew rate, 300 MHz small-signal bandwidth (G = 2), and ±3.8 V output swing into 499 Ω - enabling use in space-constrained, low-voltage systems such as portable test gear or embedded vision modules.
What is the purpose of the exposed PowerPAD™ on the THS4211DGNR package?
The exposed PowerPAD™ on the THS4211DGNR serves as a thermal conduction path to the PCB, lowering junction-to-case thermal resistance to 4.7 °C/W. It must be soldered to a thermally robust ground plane to dissipate heat effectively; failure to do so risks exceeding +125°C junction temperature and degrading distortion performance or causing permanent damage.
How does the THS4211DGNR perform in video applications with multiple 150-Ω loads?
The THS4211DGNR maintains 0.007% differential gain and 0.003° differential phase across up to eight 150 Ω video loads at 40 IRE, verified in TI's Figure 19–20. Its 170 mA sink capability and low 0.3 Ω output impedance ensure minimal signal loss and timing skew, meeting broadcast-grade NTSC/PAL distribution requirements without external buffers.
THS4211DGNR 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:
- 970V/µs
- Gain Bandwidth Product:
- 350 MHz
- -3db Bandwidth:
- 325 MHz
- Current - Input Bias:
- 7 µA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 19mA
- Current - Output / Channel:
- 220 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4211DGNR FAQ
1.How can I place an order for THS4211DGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4211DGNR 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 THS4211DGNR reliable?
The price and inventory of THS4211DGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4211DGNR is usually 5 days.
3.What payment methods are accepted for THS4211DGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4211DGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4211DGNR?
THS4211DGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4211DGNR 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 THS4211DGNR?
For technical support, including THS4211DGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4211DGNR requirements.
6.How does Aetrix verify that THS4211DGNR is sourced from the original manufacturer or authorized distributors?
All THS4211DGNR 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 THS4211DGNR meets industry standards.
7.What is the process for return or replacement of THS4211DGNR?
All THS4211DGNR units undergo pre-shipment inspection (PSI). If there is an issue with THS4211DGNR, 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 THS4211DGNR part is unused and in its original packaging.
Return procedure for THS4211DGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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