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Texas Instruments THS4211DRG4
- Part No.:
- THS4211DRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4211DRG4.pdf
- Description:
- IC OPAMP VFB 350MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,625
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Product details
Overview
THS4211DRG4 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, 1 GHz small-signal bandwidth (±5 V), –90 dBc THD at 30 MHz, 130-MHz 0.1-dB flat bandwidth (G = 2), and ±4.0 V output swing into 150 Ω - enabling use as an ADC preamplifier in high-speed data acquisition systems.
For engineers reviewing the THS4211DRG4 datasheet, THS4211DRG4 pinout, THS4211DRG4 application, or THS4211DRG4 equivalent, key selection criteria include its low harmonic distortion across 1–100 MHz, rail-to-rail output drive capability up to 170 mA, and compatibility with ±2.5 V to ±7.5 V dual supplies or 5–15 V single supplies.
Technical Context
The THS4211DRG4 employs a voltage-feedback architecture with internal compensation for unity-gain stability, eliminating external phase compensation components. Its high slew rate and wide bandwidth stem from a high-transconductance input stage and low-output-impedance buffer, supporting fast settling (22 ns to 0.1%) without peaking in G ≥ 2 configurations.
It operates with differential input voltage noise of 7 nV/√Hz and current noise of 4 pA/√Hz at 10 MHz, and maintains 56 dB minimum CMRR over ±1 V common-mode range. Input stage biasing supports operation from VS– + 1.2 V to VS+ – 1.2 V, enabling robust interfacing with precision ADC drivers and video signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 1 GHz at G = 1, ±5 V supply - enables direct RF sampling front-end buffering up to UHF. |
| Slew rate | 970 V/µs (G = 1, ±5 V) - supports full-scale 2-V step response within 2.1 ns, critical for pulse fidelity. |
| THD @ 30 MHz | –90 dBc (RL = 499 Ω) - ensures < 0.003% distortion in high-fidelity IF amplification stages. |
| 0.1-dB flat bandwidth | 130 MHz (G = 2) - maintains amplitude accuracy across multi-MHz video or communication baseband signals. |
| Output drive | ±4.0 V swing into 150 Ω, sourcing 220 mA - drives 75 Ω/150 Ω video lines or ADC inputs without external buffers. |
| Input voltage noise | 7 nV/√Hz at 1 MHz - preserves SNR in low-level sensor or IF amplifier gain stages. |
| Supply range | ±2.5 V to ±7.5 V dual or 5 V to 15 V single - supports portable, industrial, and broadcast power architectures. |
Pinout & Package
THS4211DRG4 is packaged in an SOIC-8 (D) thermally enhanced surface-mount package with exposed thermal pad (PowerPAD™), requiring connection to a PCB ground plane for optimal thermal performance and sustained 170 mA output drive.
| 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) with 0.3 pF capacitance for stable feedback network design. |
| 3 IN+ | Non-inverting input | Differential input node; matched to IN– for >56 dB CMRR and minimal offset drift. |
| 4 VS– | Negative supply | Connects to negative rail; decoupling capacitor required within 1 cm for PSRR >64 dB. |
| 5 NC | No connect | Internally unused; must remain unconnected to avoid parasitic coupling. |
| 6 VS+ | Positive supply | Connects to positive rail; requires local 0.1 µF ceramic + 4.7 µF tantalum decoupling. |
| 7 VOUT | Amplifier output | Low-impedance (0.3 Ω) output capable of driving 10 Ω loads; layout requires short trace to load. |
| 8 NC | No connect | Internally unused; floating or grounded - no effect on operation. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable operation | Eliminates need for external compensation networks, reducing BOM count and layout sensitivity in G = 1 applications. |
| Low distortion at high frequency | –90 dBc HD2/HD3 at 30 MHz enables clean signal reconstruction in 12–14-bit ADC front ends. |
| High output current | 220 mA sourcing capability allows direct drive of multiple 150 Ω video loads or parallel ADC inputs. |
| Video-optimized linearity | 0.007% differential gain / 0.003° differential phase meets SMPTE 253M broadcast standards. |
| Wide supply flexibility | Operates from ±2.5 V to ±7.5 V or 5–15 V single supply - simplifies integration into mixed-voltage systems. |
Applications
| High-Linearity ADC Preamplifier | Differential to Single-Ended Conversion |
|---|---|
Use Scenario: Buffering and gain-setting stage before a 125 MSPS pipeline ADC in radar digitizers. IC Role / Device Role / Timing Role: High-speed op-amp configured as non-inverting amplifier (G = 2) to match ADC input impedance and maximize SNR. Use Value: 130-MHz 0.1-dB flatness and –90 dBc THD preserve ENOB >11.2 bits across DC–60 MHz input spectrum. | Use Scenario: Converting differential IF output from a mixer to single-ended signal for SAW filter input. IC Role / Device Role / Timing Role: Fully differential-to-single-ended converter using THS4211DRG4 in gain-of-two configuration with matched feedback resistors. Use Value: 56 dB CMRR and 7 nV/√Hz input noise minimize common-mode interference and maintain 72 dB SFDR. |
| DAC Output Buffer | Active Filtering |
Use Scenario: Driving 75 Ω coaxial cable from a high-speed DAC in digital video waveform generation. IC Role / Device Role / Timing Role: Unity-gain voltage follower with 150 Ω series termination at output to suppress reflections. Use Value: 970 V/µs slew rate ensures <1% settling error on 10-ns video pulses; ±4.0 V swing supports 1 VPP NTSC/PAL levels. | Use Scenario: Implementing a 4th-order Chebyshev anti-alias filter at 40 MHz cutoff in medical ultrasound receivers. IC Role / Device Role / Timing Role: Second-stage amplifier in cascaded active filter topology with 392 Ω feedback and 150 Ω load. Use Value: 1 GHz bandwidth prevents phase shift-induced passband ripple; low distortion avoids harmonic aliasing into baseband. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-distortion amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4215DR | Identical AC/DC specs plus integrated power-down pin (PD); quiescent current drops to ≤900 µA in shutdown. | Required where system-level power gating is needed (e.g., battery-powered portable test equipment). | Select THS4215DR only if PD functionality is mandatory; THS4211DRG4 offers identical performance without added control logic. |
| LMH6629MA/NOPB | Lower 5.5 nV/√Hz noise, but 700 V/µs slew rate and –75 dBc THD at 30 MHz; not unity-gain stable (requires ≥10 V/V min gain). | Suitable for lower-distortion-critical, higher-gain (>10×) transimpedance or IF amplifier stages. | Choose LMH6629MA/NOPB only when noise dominates over slew rate and gain ≥10 is acceptable; THS4211DRG4 remains preferred for G = 1–5 ADC driver roles. |
Compared with THS4215DR and LMH6629MA/NOPB, THS4211DRG4 uniquely combines unity-gain stability, 1 GHz bandwidth, and –90 dBc distortion - making it the only drop-in solution for G = 1–2 high-fidelity ADC/DAC interface designs without redesigning compensation or layout.
Availability
THS4211DRG4 is available at Aetrix Electronics and suitable for high-speed data acquisition, broadcast video infrastructure, and medical imaging systems requiring stable component supply, long-term production continuity, and TI-qualified automotive-grade traceability.
Supply support for THS4211DRG4 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 over 50 years of innovation in high-performance signal chain solutions.
The THS4211 product line was engineered specifically for wideband, low-distortion analog signal conditioning - targeting demanding applications including high-resolution ADC/DAC interfaces, video signal distribution, and communications infrastructure.
FAQ
What supply voltages does the THS4211DRG4 support?
The THS4211DRG4 operates from ±2.5 V to ±7.5 V dual supplies or 5 V to 15 V single supply. At ±5 V, it achieves 1 GHz small-signal bandwidth and 970 V/µs slew rate; at 5 V single supply, bandwidth reduces to 980 MHz with 800 V/µs slew rate. Quiescent current remains 19–24 mA across this full range, enabling flexible power architecture integration without performance trade-offs.
Is the THS4211DRG4 unity-gain stable, and what does that mean for circuit design?
Yes, the THS4211DRG4 is internally compensated for unity-gain stability. This means it can be configured as a voltage follower (G = 1) without external phase compensation components or risk of oscillation. Designers benefit from simplified layout, reduced component count, and guaranteed stability across temperature and capacitive loads up to 100 pF - critical for ADC input buffering and video line driving where gain-of-one operation is routine.
What is the maximum output current and voltage swing of the THS4211DRG4?
The THS4211DRG4 delivers ±4.0 V output swing into 150 Ω at ±5 V supply (minimum), with sourcing capability up to 220 mA and sinking up to 170 mA (RL = 10 Ω). This enables direct drive of standard video loads, multiple parallel ADC inputs, or 75 Ω transmission lines with proper termination - eliminating need for external output buffers in most high-speed analog interface applications.
How does the THS4211DRG4 perform in video applications like NTSC/PAL signal conditioning?
The THS4211DRG4 meets broadcast video linearity requirements with 0.007% differential gain error and 0.003° differential phase error at G = 2, RL = 150 Ω. These values ensure accurate color reproduction and minimal timing skew across composite video waveforms, satisfying SMPTE 253M compliance for professional video routing, distribution amplifiers, and waveform monitors using the THS4211DRG4 as a gain block or line driver.
Does the THS4211DRG4 require special PCB layout considerations?
Yes - the THS4211DRG4's SOIC-8 PowerPAD™ package requires the exposed thermal pad to be soldered to a solid copper ground plane for thermal dissipation and optimal 170 mA output drive. Supply pins (VS+, VS–) must have local 0.1 µF ceramic + 4.7 µF bulk decoupling within 1 cm. Input traces should be symmetrical and short; feedback resistors (e.g., 392 Ω) must be placed adjacent to the amplifier to minimize parasitic inductance affecting stability and bandwidth.
THS4211DRG4 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:
- 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:
- -
- 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-SOIC
THS4211DRG4 FAQ
1.How can I place an order for THS4211DRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4211DRG4 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 THS4211DRG4 reliable?
The price and inventory of THS4211DRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4211DRG4 is usually 5 days.
3.What payment methods are accepted for THS4211DRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4211DRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4211DRG4?
THS4211DRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4211DRG4 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 THS4211DRG4?
For technical support, including THS4211DRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4211DRG4 requirements.
6.How does Aetrix verify that THS4211DRG4 is sourced from the original manufacturer or authorized distributors?
All THS4211DRG4 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 THS4211DRG4 meets industry standards.
7.What is the process for return or replacement of THS4211DRG4?
All THS4211DRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4211DRG4, 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 THS4211DRG4 part is unused and in its original packaging.
Return procedure for THS4211DRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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