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Texas Instruments OPA355QDBVRQ1
- Part No.:
- OPA355QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA355QDBVRQ1.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:9,570
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Product details
Overview
OPA355QDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, 200-MHz gain-bandwidth, rail-to-rail output CMOS operational amplifier with digital shutdown enable, designed for automotive video signal conditioning and high-speed ADC/DAC interface circuits. It delivers 360 V/μs slew rate, 5.8 nV/√Hz input voltage noise, and differential gain/phase of 0.02% / 0.05° at NTSC video frequencies.
For engineers reviewing the OPA355QDBVRQ1 datasheet, OPA355QDBVRQ1 pinout, OPA355QDBVRQ1 application, or OPA355QDBVRQ1 equivalent, this page provides verified technical context, automotive-grade thermal and ESD specifications, real-world video and data-converter interface performance metrics, and validated alternative options for high-speed analog signal path design.
Technical Context
The OPA355QDBVRQ1 employs a voltage-feedback CMOS architecture optimized for unity-gain stability and wide dynamic range operation on single supplies (2.5 V to 5.5 V) or split supplies (±1.25 V to ±2.75 V). Its input common-mode range extends 100 mV below ground and up to 1.5 V below V+, while rail-to-rail output swing remains within 100 mV of both rails under 150-Ω load.
It integrates a TTL-compatible enable pin (logic-high active, 2 V threshold) that reduces quiescent current from 8.3 mA to 3.4 μA and places the output in high-impedance state in <30 ns. Thermal shutdown activates at 160°C junction temperature and resets at 140°C, supporting robust operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 450 MHz - enables stable 1× gain configuration for video buffers and sensor interfaces without external compensation. |
| Gain-Bandwidth Product | 200 MHz - supports G = 2 amplification up to 170 MHz with 150-Ω load, suitable for high-resolution ADC front-ends. |
| Slew Rate | 360 V/μs - ensures distortion-free reproduction of fast transient signals such as video sync pulses and digital waveform edges. |
| Input Voltage Noise | 5.8 nV/√Hz - critical for low-noise transimpedance amplifiers in photodiode-based automotive LiDAR and ambient light sensing. |
| Rail-to-Rail Output Swing | Within 100 mV of rails at 150-Ω load - maximizes dynamic range in 3.3-V and 5-V automotive systems with limited supply headroom. |
| Enable/Disable Time | 100 ns / 30 ns - allows precise gating for time-division multiplexing of multiple sensor channels onto shared analog buses. |
| Automotive Temp Range | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1, enabling use in engine control units, ADAS camera modules, and infotainment audio paths. |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm body size), surface-mount, thermally enhanced for automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Amplifier output | High-current, rail-to-rail output capable of ±60 mA continuous drive; enters high-Z state when ENABLE = LOW. |
| V– (Pin 2) | Negative supply | Reference for enable logic and bias network; supports true single-supply operation when tied to ground. |
| IN+ (Pin 3) | Noninverting input | CMOS input with 3 pA bias current; common-mode range includes ground, enabling direct connection to unipolar sensors. |
| IN– (Pin 4) | Inverting input | Summing node for transimpedance and active filter configurations; low input capacitance minimizes peaking with photodiode sources. |
| ENABLE (Pin 5) | Digital shutdown control | TTL-compatible input referenced to V–; internal 100-kΩ pullup ensures default ON state if left floating. |
| V+ (Pin 6) | Positive supply | Accepts 2.5 V to 5.5 V single supply or positive rail of dual supply; absolute max 7.5 V across V+–V–. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C), HBM ESD Level 2 (2 kV), CDM Level C4B (750 V on corner pins). |
| Video signal fidelity | Differential gain 0.02% and phase 0.05° at NTSC standard - meets broadcast-grade video buffer requirements. |
| Low-power shutdown | Reduces per-channel supply current from 8.3 mA to 3.4 μA, extending battery life in always-on ADAS subsystems. |
| Wide supply flexibility | Operates from 2.5 V to 5.5 V single supply or ±1.25 V to ±2.75 V dual supply - simplifies power architecture in mixed-voltage ECUs. |
| Thermal protection | Integrated junction temperature monitoring shuts down output at 160°C and recovers automatically at 140°C. |
Applications
| Automotive Camera Signal Chain | High-Speed ADC Input Buffer |
|---|---|
Use Scenario: Front-facing ADAS camera module digitizing analog RGB or YUV video signals before HDMI or MIPI CSI-2 serialization. IC Role / Device Role / Timing Role: Video buffer amplifier driving 150-Ω coaxial cable or PCB trace to ADC input, maintaining NTSC-compliant differential gain/phase. Use Value: 0.02% differential gain error preserves color fidelity; 75 MHz gain flatness ensures accurate pixel timing across full HD resolution. |
Use Scenario: Precision SAR or pipeline ADC front-end in automotive radar signal processing, where fast settling and low noise are critical. IC Role / Device Role / Timing Role: Unity-gain buffer isolating sensor source from ADC input capacitance, providing 30 ns 0.1% settling time for 16-bit conversion. Use Value: 360 V/μs slew rate prevents slewing-induced distortion; rail-to-rail output maximizes SNR by utilizing full ADC input range. |
| Transimpedance Amplifier (LiDAR) | Active Filter for Engine Control |
Use Scenario: Photodiode current-to-voltage conversion in short-range automotive LiDAR receivers operating at 850 nm or 905 nm wavelengths. IC Role / Device Role / Timing Role: Transimpedance amplifier with 3 pA input bias current and 5.8 nV/√Hz voltage noise, optimized for low-capacitance photodiodes. Use Value: Low input bias current minimizes dark current error; wide 450 MHz unity-gain bandwidth supports >100 MHz pulse detection bandwidth. |
Use Scenario: Anti-aliasing or reconstruction filtering in engine knock sensor signal conditioning, requiring stable high-frequency response and DC accuracy. IC Role / Device Role / Timing Role: Second-order active low-pass filter stage with precise pole placement enabled by 200 MHz GBW and low input offset drift. Use Value: 84 dB open-loop gain at DC ensures <1 mV filter passband error; –40°C to +125°C offset drift of ±7 µV/°C maintains calibration integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA356DRBR | No shutdown function; identical 200-MHz GBW, 360 V/μs slew rate, and 5.8 nV/√Hz noise; same SOT-23-6 package. | Lacks enable control - unsuitable for power-gated sensor nodes but offers lower quiescent current (5.3 mA vs 8.3 mA) in always-on mode. | Select OPA356DRBR when shutdown is unnecessary and lowest possible static power is required in continuous operation. |
| OPA2350UA/2K5 | Rail-to-rail input/output; lower 38-MHz GBW; higher 7 nV/√Hz noise; dual-channel SO-8 package; no shutdown. | Better DC precision (150 µV max Vos) and input range but insufficient bandwidth for video or >10 MSPS ADC buffering. | Choose OPA2350UA/2K5 only for low-frequency, high-accuracy sensor signal conditioning where speed is secondary to offset and CMRR. |
Compared with OPA355QDBVRQ1, OPA356DRBR removes shutdown capability but improves static power efficiency, while OPA2350UA/2K5 trades bandwidth and noise performance for superior DC accuracy and rail-to-rail input - making OPA355QDBVRQ1 uniquely suited for automotive video and high-speed data acquisition where both speed and enable control are mandatory.
Availability
OPA355QDBVRQ1 is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor interfaces, high-speed data acquisition systems, and industrial video equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA355QDBVRQ1 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 decades of automotive-grade product development and AEC-Q100 qualification expertise.
The OPA355QDBVRQ1 belongs to TI's precision high-speed op-amp portfolio, engineered specifically for automotive video, sensor interface, and data converter applications demanding wide bandwidth, low noise, and robust operation in harsh environments.
FAQ
What is the maximum supply voltage for OPA355QDBVRQ1?
The absolute maximum supply voltage across V+ and V– terminals is 7.5 V. Operation beyond this rating may cause permanent damage. The recommended operating range is 2.5 V to 5.5 V total supply, supporting both single-supply (e.g., 3.3 V or 5 V) and dual-supply (e.g., ±2.5 V) configurations. The OPA355QDBVRQ1 datasheet specifies performance over this full range, with thermal derating applied above 5.5 V.
Does OPA355QDBVRQ1 support true single-supply operation with ground-referenced inputs?
Yes. The OPA355QDBVRQ1 features an input common-mode range that extends 100 mV below ground (V–) and up to 1.5 V below V+, enabling direct connection of ground-referenced sensors and unipolar signal sources. This capability is confirmed in the Electrical Characteristics table under "Common-mode voltage range" and is validated across the full –40°C to +125°C automotive temperature range.
How does the ENABLE pin function on OPA355QDBVRQ1?
The ENABLE pin (Pin 5) is TTL-compatible and referenced to V–. A logic HIGH ≥2 V enables normal operation (8.3 mA quiescent current); a logic LOW ≤0.8 V disables the amplifier, reducing current to 3.4 μA and placing the output in high-impedance state. Internal 100-kΩ pullup ensures default ON behavior if left unconnected. Enable/disable times are 100 ns and 30 ns respectively, as measured in the Electrical Characteristics section.
What video performance metrics are guaranteed for OPA355QDBVRQ1?
The OPA355QDBVRQ1 guarantees differential gain of 0.02% and differential phase of 0.05° under NTSC conditions (RL = 150 Ω, TA = 25°C), with 75 MHz gain flatness (0.1 dB). These values are measured and specified in the Electrical Characteristics table and Typical Characteristics Figure 19, confirming suitability for broadcast-quality automotive video signal routing and buffering.
Is thermal shutdown implemented in OPA355QDBVRQ1, and how does it behave?
Yes. OPA355QDBVRQ1 includes integrated thermal shutdown that activates at 160°C junction temperature, disabling the output to prevent damage. Normal operation resumes automatically when junction temperature falls below 140°C. This hysteresis is documented in the Electrical Characteristics table under "Thermal Shutdown" and applies across the full –40°C to +125°C ambient operating range.
OPA355QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 360V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- 450 MHz
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 8.3mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
OPA355QDBVRQ1 FAQ
1.How can I place an order for OPA355QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA355QDBVRQ1 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 OPA355QDBVRQ1 reliable?
The price and inventory of OPA355QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA355QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for OPA355QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA355QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA355QDBVRQ1?
OPA355QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA355QDBVRQ1 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 OPA355QDBVRQ1?
For technical support, including OPA355QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA355QDBVRQ1 requirements.
6.How does Aetrix verify that OPA355QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA355QDBVRQ1 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 OPA355QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of OPA355QDBVRQ1?
All OPA355QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA355QDBVRQ1, 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 OPA355QDBVRQ1 part is unused and in its original packaging.
Return procedure for OPA355QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA355QDBVRQ1 Tags
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