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Texas Instruments THS4304DBVT
- Part No.:
- THS4304DBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
THS4304DBVT.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,049
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Product details
Overview
THS4304DBVT from Texas Instruments is a wideband voltage-feedback operational amplifier in SOT-23-5 package, designed for high-speed ADC driving and RF signal conditioning. It delivers 3 GHz small-signal bandwidth at G=+1, 830 V/µs slew rate, 2.4 nV/√Hz input voltage noise, and operates from single 5-V or 3-V supply with 18 mA quiescent current - enabling high-fidelity analog front-ends in ultrasound and telecom receivers.
For engineers reviewing the THS4304DBVT datasheet, THS4304DBVT pinout, THS4304DBVT application, or THS4304DBVT equivalent, key selection criteria include its 240 MHz large-signal bandwidth at 2-Vpp output, –84 dBc second-harmonic distortion at 10 MHz, 300 MHz 0.1-dB flatness, and validated performance driving ADS5500-type 125-MSPS ADCs in differential configurations.
Technical Context
The THS4304DBVT implements a traditional voltage-feedback topology with balanced inputs, low offset voltage (≤5 mV), and high common-mode rejection (≥73 dB), optimized for single-supply operation without rail-to-rail input/output. Its BiCom3 SiGe process enables 3 GHz unity-gain bandwidth while maintaining low distortion under heavy capacitive loading.
It supports non-inverting and inverting gain configurations with external feedback networks (e.g., RF = 249 Ω for G = +2); layout-critical design requires minimized parasitic capacitance at IN− and VOUT, removal of ground plane beneath the device, and tight placement of 0.1-µF ceramic bypass capacitors adjacent to VS+ and VS− pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 3 GHz at G = +1 - enables baseband-to-RF signal amplification up to cellular/WiFi bands without external compensation. |
| Slew Rate | 830 V/µs - supports clean 2-Vpp transient response within 2.5 ns rise time for fast-pulse applications like gamma camera front-ends. |
| Input Voltage Noise | 2.4 nV/√Hz at 1 MHz - preserves SNR in low-amplitude sensor interfaces such as ultrasound transducer preamps. |
| Harmonic Distortion | –84 dBc 2nd HD at 10 MHz - ensures minimal spectral contamination when driving 12-bit+ ADCs like ADS5500. |
| Supply Range | 2.7 V to 5.5 V single supply - eliminates need for ±5-V rails, reducing power system complexity in portable medical and test equipment. |
| Quiescent Current | 18 mA - balances high-speed performance with thermal manageability in space-constrained SOT-23-5 PCB layouts. |
| 0.1-dB Flatness | 300 MHz at G = +2 - guarantees amplitude fidelity across wide IF bands in RF/IF receiver chains. |
Pinout & Package
SOT-23-5 package: compact 2.9 mm × 1.6 mm footprint with exposed pad for thermal enhancement; pin 1 marked by dot; NC on pin 3 per TI datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Feedback node for gain-setting; sensitive to parasitic capacitance - requires short trace and no ground plane underneath. |
| 2 (IN+) | Non-Inverting Input | High-impedance signal entry point; common-mode range extends 0.2 V beyond rails for flexible biasing. |
| 3 (NC) | No Internal Connection | Unbonded pin - must remain unconnected; no routing or grounding permitted. |
| 4 (VS−) | Negative Supply | Ground reference for single-supply operation; requires local 0.1-µF ceramic bypass to minimize PSRR degradation. |
| 5 (VOUT) | Amplifier Output | Capable of sourcing/sinking ≥57 mA into 10 Ω load; drives 100 Ω directly with <2 dB peaking using 249 Ω feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 2.7 V to 5.5 V - eliminates dual-rail power supplies in battery-powered or space-limited systems. |
| Low distortion at high frequency | –84 dBc 2nd harmonic at 10 MHz with 100 Ω load - maintains SFDR >70 dB for 125-MSPS ADC interfacing. |
| High slew rate & bandwidth synergy | 830 V/µs slew rate supports full 240 MHz large-signal bandwidth - avoids slewing-induced distortion in pulse amplification. |
| Package-optimized HD2 performance | SOT-23 variant achieves 6 dB better 2nd harmonic vs MSOP under 100 Ω load - critical for differential ADC driver matching. |
| Robust thermal rating | 156 mW power dissipation at TA = 85°C - enables reliable operation in sealed enclosures without forced air cooling. |
Applications
| Ultrasound Imaging Front-End | RF/IF Receiver Chain |
|---|---|
Use Scenario: Amplifying weak echo signals from piezoelectric transducers before digitization in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth ADC driver providing 2-Vpp swing into 100 Ω with minimal added distortion. Use Value: 2.4 nV/√Hz input noise and –84 dBc HD2 preserve dynamic range for detecting sub-millimeter tissue boundaries. | Use Scenario: Buffering and gain-setting stage between mixer output and ADC input in 3G/4G baseband receivers. IC Role / Device Role / Timing Role: Wideband voltage amplifier with 300 MHz 0.1-dB flatness ensuring amplitude accuracy across 20–200 MHz IF bands. Use Value: 3 GHz small-signal bandwidth allows stable G=+2 configuration with 249 Ω feedback resistor, minimizing group delay variation. |
| Gamma Camera Signal Conditioning | High-Speed Data Acquisition System |
Use Scenario: Shaping and amplifying scintillation detector pulses prior to time-of-flight measurement in nuclear medicine imaging. IC Role / Device Role / Timing Role: Fast-settling op-amp delivering 4.5 ns to 1% for precise pulse timing with minimal overshoot. Use Value: 830 V/µs slew rate and 2.5 ns rise time enable accurate capture of nanosecond-scale photon arrival events. | Use Scenario: Driving ADS5500 125-MSPS ADC in automated test equipment requiring high SFDR and low jitter. IC Role / Device Role / Timing Role: Differential ADC driver configured with matched RF/RG network to suppress even-order harmonics. Use Value: Validated THS4304 + ADS5500 SFDR performance shown in TI datasheet Figure 1, supporting >70 dB effective resolution. |
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 |
|---|---|---|---|
| LMH6702MF/NOPB | 2.8 GHz GBW, 30 mA IQ, SOIC-8 only - higher quiescent current, no SOT-23 option. | Less suitable for space-constrained portable designs due to larger package and thermal footprint. | Select when board area permits SOIC-8 and higher drive current (>100 mA) is required for 50 Ω loads. |
| ADA4817-1ARMZ | 1 GHz GBW, 1.3 mA IQ, 110 V/µs slew - lower bandwidth/noise trade-off, superior power efficiency. | Better for low-power, medium-bandwidth applications where 3 GHz is unnecessary. | Select when optimizing for battery life in handheld test gear and 1 GHz bandwidth suffices for target signal chain. |
Compared with LMH6702MF/NOPB and ADA4817-1ARMZ, the THS4304DBVT uniquely combines SOT-23-5 form factor, 3 GHz bandwidth, and 18 mA IQ - making it the only choice for miniaturized, high-SFDR ADC drivers where PCB real estate and thermal density are constrained.
Availability
THS4304DBVT is available at Aetrix Electronics and suitable for ultrasound imaging front-ends, RF/IF receiver chains, gamma camera signal conditioning, and high-speed data acquisition systems requiring stable component supply and long-term production continuity.
Supply support for THS4304DBVT 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 90 years of innovation in high-performance signal chain components.
The THS4304DBVT belongs to TI's high-speed operational amplifier product line, engineered specifically for single-supply, wideband ADC driver and RF signal conditioning applications demanding low noise, low distortion, and compact packaging.
FAQ
What is the maximum operating supply voltage for THS4304DBVT?
The THS4304DBVT supports a maximum operating supply voltage of +6.0 V across VS+ and VS− terminals, as specified in the Absolute Maximum Ratings table. However, recommended operation is limited to 2.7 V to 5.5 V for optimal performance and reliability. Exceeding 5.5 V risks permanent damage and violates the device's qualified operating conditions defined in the datasheet.
Can THS4304DBVT drive a 50-Ω load directly?
The THS4304DBVT is not rated for continuous 50-Ω load driving per its Electrical Characteristics: output current is specified as 57 mA sourcing/sinking into 10 Ω, and 3.7 V swing into 100 Ω at 5 V supply. For 50-Ω applications, use a series resistor (e.g., 50 Ω) to isolate the load and maintain stability - TI's EVM schematic confirms this practice for 50-Ω terminated inputs/outputs in THS4304DBVT-based designs.
Does THS4304DBVT require external compensation capacitors?
The THS4304DBVT is internally compensated for unity-gain stability but benefits from external optimization: a 0.5 pF capacitor across the feedback resistor (e.g., CF = 0.5 pF with RF = 249 Ω) improves 0.1-dB flatness to 300 MHz and reduces peaking. TI's datasheet Figure 4 and Application Information section explicitly recommend this for G = +2 configurations to achieve best amplitude fidelity.
How does THS4304DBVT compare to THS4304DGK in harmonic distortion performance?
Under 100 Ω load, the THS4304DBVT (SOT-23-5) delivers ~6 dB better second-harmonic distortion than the THS4304DGK (MSOP-8), as confirmed in TI's Application Information section and Figure 9. This advantage stems from reduced package parasitics in the smaller SOT-23, making THS4304DBVT preferred for ultra-low-distortion differential ADC driver applications where HD2 directly impacts SFDR.
Is THS4304DBVT suitable for single-supply 3-V operation?
Yes, THS4304DBVT is fully characterized for 3-V single-supply operation: it delivers 900 MHz small-signal bandwidth, 750 V/µs slew rate, and 450 MHz large-signal bandwidth at 1-Vpp output. The datasheet specifies valid input common-mode range (–0.2 V to 2.6 V), output swing (1.7 V), and quiescent current (17.2–18.4 mA) under 3-V conditions - confirming robust functionality in low-voltage portable systems.
THS4304DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 830V/µs
- Gain Bandwidth Product:
- 870 MHz
- -3db Bandwidth:
- 3 GHz
- Current - Input Bias:
- 7 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 18mA
- Current - Output / Channel:
- 140 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
THS4304DBVT FAQ
1.How can I place an order for THS4304DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4304DBVT 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 THS4304DBVT reliable?
The price and inventory of THS4304DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4304DBVT is usually 5 days.
3.What payment methods are accepted for THS4304DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4304DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4304DBVT?
THS4304DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4304DBVT 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 THS4304DBVT?
For technical support, including THS4304DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4304DBVT requirements.
6.How does Aetrix verify that THS4304DBVT is sourced from the original manufacturer or authorized distributors?
All THS4304DBVT 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 THS4304DBVT meets industry standards.
7.What is the process for return or replacement of THS4304DBVT?
All THS4304DBVT units undergo pre-shipment inspection (PSI). If there is an issue with THS4304DBVT, 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 THS4304DBVT part is unused and in its original packaging.
Return procedure for THS4304DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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