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Texas Instruments THS4211DRB
- Part No.:
- THS4211DRB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
THS4211DRB.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8VSON
- Quantity:
- Payment:
- Shipping:
Inventory:893
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Product details
Overview
THS4211DRB from Texas Instruments is a unity-gain stable, high-speed voltage feedback operational amplifier optimized for wideband signal conditioning in precision analog systems. It delivers 1 GHz small-signal bandwidth (±5 V), 970 V/µs slew rate, −90 dBc THD at 30 MHz (RL = 499 Ω), and supports ±2.5 V to ±7.5 V or +5 V to +15 V supply operation - enabling high-fidelity ADC preamplification and video signal buffering.
For engineers reviewing the THS4211DRB datasheet, THS4211DRB pinout, THS4211DRB application, or THS4211DRB equivalent, this page provides verified package mapping (8-pin leadless MSOP with PowerPAD™), confirmed thermal performance (θJA = 45.8 °C/W), real-world distortion metrics, and validated alternatives for high-linearity, wideband amplifier selection.
Technical Context
The THS4211DRB employs a voltage-feedback architecture with internal compensation for unity-gain stability across ±5 V and +5 V supplies. Its high slew rate and low distortion stem from optimized transconductance stages and low-output-impedance output drivers capable of sourcing/sinking ≥200 mA.
Designed for demanding ac-coupled applications, it maintains 0.007% differential gain and 0.003° differential phase in G = 2 video configurations, while its input stage features 4 MΩ common-mode resistance and 0.3 pF common-mode capacitance - critical for maintaining signal integrity in high-frequency active filtering and DAC output buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 1 GHz at G = 1, ±5 V - enables full-spectrum capture of fast transient signals without peaking or instability. |
| Slew rate | 970 V/µs at G = 1, ±5 V - supports clean amplification of >100 MHz square waves with minimal edge rounding. |
| THD @ 30 MHz | −90 dBc (RL = 499 Ω) - ensures <0.003% harmonic contamination in high-frequency sensor or communication front-ends. |
| Differential gain/phase | 0.007% / 0.003° at G = 2, NTSC/PAL - meets broadcast-grade video fidelity requirements without external calibration. |
| Supply range | ±2.5 V to ±7.5 V dual or +5 V to +15 V single - allows direct interfacing with 3.3 V, 5 V, and 12 V system rails. |
| Output drive | ≥200 mA sourcing (RL = 10 Ω, ±5 V) - drives heavy capacitive loads or multiple downstream inputs without gain loss. |
| Input voltage noise | 7 nV/√Hz at 1 MHz - preserves SNR in low-level signal amplification prior to high-resolution ADCs. |
Pinout & Package
THS4211DRB uses an 8-pin leadless MSOP package with exposed PowerPAD™ thermal pad on the underside, requiring connection to a PCB copper plane for thermal management (θJC = 5 °C/W, θJA = 45.8 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must remain floating or tied to ground per layout best practices for noise immunity. |
| 2 | Inverting input (IN−) | Differential input node; requires matched trace length and impedance to IN+ for optimal CMRR above 10 MHz. |
| 3 | Non-inverting input (IN+) | Differential input node; referenced to system ground or bias network; sensitive to parasitic capacitance. |
| 4 | Negative supply (VS−) | Return path for dual-supply operation; must be decoupled with ≤100 nF ceramic capacitor near pin. |
| 5 | No Connect (NC) | Internally unconnected; no routing or stitching required; avoid via placement under pad. |
| 6 | Positive supply (VS+) | Power rail input; decoupling mandatory - TI recommends 100 nF + 10 µF parallel stack adjacent to pin. |
| 7 | Output (VOUT) | Low-impedance buffered output; capable of driving 150 Ω video loads or 499 Ω instrumentation loads directly. |
| 8 | No Connect (NC) | Internally unconnected; leave unconnected; do not tie to any net including ground or supply. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability | Guaranteed stable at G = 1 without external compensation - eliminates risk of oscillation in buffer or gain-of-one configurations. |
| PowerPAD™ thermal enhancement | θJA = 45.8 °C/W enables 2.18 W power dissipation at TA ≤ 25°C - supports continuous high-output swing without thermal shutdown. |
| Video-optimized linearity | 0.007% differential gain error preserves color fidelity in SD/HD video reconstruction without post-processing correction. |
| High output current | 220 mA sourcing capability (±5 V, RL = 10 Ω) allows direct driving of coaxial cables or multiple parallel ADC inputs. |
| Low input capacitance | 0.2 pF differential input capacitance minimizes frequency-dependent phase shift in high-Z sensor interfaces. |
Applications
| High Linearity ADC Preamplifier | Differential to Single-Ended Conversion |
|---|---|
|
Use Scenario: Amplifying low-amplitude sensor outputs (e.g., piezoelectric, photodiode) before 14–16-bit SAR or pipeline ADCs. IC Role / Device Role: High-gain, low-noise, low-distortion gain stage with precise dc offset control. Use Value: 7 nV/√Hz input noise and −90 dBc THD preserve ENOB at 30 MHz input frequencies, extending effective resolution by ≥0.8 bits. |
Use Scenario: Converting differential outputs from high-speed ADCs or DACs into single-ended signals for legacy processing stages. IC Role / Device Role: Precision active balun with matched gain and phase response across both legs. Use Value: 0.003° differential phase error ensures <1 LSB timing skew between I/Q channels in communications receivers. |
| DAC Output Buffer | Active Filtering |
|
Use Scenario: Driving 75 Ω or 150 Ω video loads from high-speed DACs in medical imaging or test equipment. IC Role / Device Role: Low-output-impedance, high-slew-rate buffer with minimal settling time. Use Value: 22 ns settling to 0.1% at G = −1 enables accurate reproduction of >100 MSPS DAC waveforms without droop or overshoot. |
Use Scenario: Implementing 5th-order anti-aliasing or reconstruction filters in data acquisition systems. IC Role / Device Role: High-Q, low-drift active filter stage with wide dynamic range. Use Value: 1 GHz bandwidth supports filter corner frequencies up to 100 MHz with <0.1 dB passband ripple and monotonic roll-off. |
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 |
|---|---|---|---|
| THS4271DRBT | 1.4 GHz bandwidth, higher quiescent current (27 mA), no PowerPAD™ in DRBT variant - θJA = 62.5 °C/W. | Better small-signal bandwidth but reduced thermal margin in compact layouts; less suitable for sustained 200 mA output. | Select when >1 GHz closed-loop bandwidth is required and board-level thermal design accommodates higher θJA. |
| LMH6702MF/NOPB | 1.8 GHz bandwidth, 1000 V/µs slew rate, but only specified for ±5 V operation - no +5 V single-supply support. | Lacks single-supply flexibility and exhibits higher THD (−72 dBc @ 30 MHz) - unsuitable for precision video or low-distortion ADC buffering. | Choose only for ultra-wideband RF IF amplification where supply flexibility and video linearity are secondary. |
Compared with THS4211DRB, THS4271DRBT trades thermal efficiency for bandwidth headroom, while LMH6702MF/NOPB sacrifices supply versatility and distortion performance for raw speed - making THS4211DRB the optimal choice for thermally constrained, multi-rail, low-distortion applications.
Availability
THS4211DRB is available at Aetrix Electronics and suitable for high-speed data acquisition, broadcast video infrastructure, and precision test equipment requiring stable component supply, consistent parametric performance across temperature, and long-term manufacturability assurance.
Supply support for THS4211DRB 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 over 50 years of innovation in high-performance signal chain components.
The THS4211DRB belongs to TI's high-speed voltage feedback op-amp product line, engineered specifically for wideband, low-distortion signal conditioning in measurement, video, and communications systems operating from DC to >500 MHz.
FAQ
What supply voltages does the THS4211DRB support?
The THS4211DRB 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 bandwidth and 970 V/µs slew rate; at +5 V, bandwidth drops to 980 MHz with 800 V/µs slew rate. The device maintains specified performance across −40°C to +85°C ambient temperature.
Does the THS4211DRB require external compensation for unity-gain stability?
No, the THS4211DRB is internally compensated for unity-gain stability across all supported supply voltages and load conditions. This eliminates the need for external compensation networks, simplifying layout and ensuring predictable step response with 22 ns settling to 0.1% at G = −1.
How is thermal management handled on the THS4211DRB's PowerPAD™ package?
The THS4211DRB's DRB package integrates an exposed PowerPAD™ thermal pad that must be soldered to a dedicated PCB copper pour connected to ground or a thermal plane. With proper thermal vias (≥6× 0.3 mm), θJA reduces to 45.8 °C/W, enabling 2.18 W dissipation at TA ≤ 25°C without exceeding TJ = 125°C.
Can the THS4211DRB drive standard 75 Ω video loads?
Yes - the THS4211DRB delivers 0.007% differential gain and 0.003° differential phase into 150 Ω loads at G = 2, meeting SMPTE 253M and ITU-R BT.601 video standards. For 75 Ω, use G = 1 with series termination or add a 75 Ω back-termination resistor to maintain impedance match and minimize reflections.
What is the maximum output current capability of the THS4211DRB?
The THS4211DRB sources ≥220 mA and sinks ≥170 mA into RL = 10 Ω at ±5 V (TA = 25°C). Under worst-case conditions (TA = 85°C), minimum sourcing remains 180 mA - sufficient to drive multiple 150 Ω video loads or charge/discharge 1000 pF capacitive loads within nanoseconds.
THS4211DRB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- 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:
- 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-VSON (3x3)
THS4211DRB FAQ
1.How can I place an order for THS4211DRB through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4211DRB 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 THS4211DRB reliable?
The price and inventory of THS4211DRB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4211DRB is usually 5 days.
3.What payment methods are accepted for THS4211DRB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4211DRB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4211DRB?
THS4211DRB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4211DRB 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 THS4211DRB?
For technical support, including THS4211DRB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4211DRB requirements.
6.How does Aetrix verify that THS4211DRB is sourced from the original manufacturer or authorized distributors?
All THS4211DRB 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 THS4211DRB meets industry standards.
7.What is the process for return or replacement of THS4211DRB?
All THS4211DRB units undergo pre-shipment inspection (PSI). If there is an issue with THS4211DRB, 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 THS4211DRB part is unused and in its original packaging.
Return procedure for THS4211DRB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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