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Texas Instruments OPA377QDBVRQ1
- Part No.:
- OPA377QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA377QDBVRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,861
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Product details
Overview
OPA377QDBVRQ1 from Texas Instruments is an automotive-grade, low-noise, precision CMOS operational amplifier optimized for single-supply, low-voltage signal conditioning. It delivers 7.5 nV/√Hz input voltage noise at 1 kHz, 250 µV typical input offset voltage, 5.5 MHz gain-bandwidth product, rail-to-rail input/output swing, and 760 µA typical quiescent current - enabling high-fidelity sensor amplification in battery-powered ADAS modules such as park assist and tire pressure monitoring systems.
For engineers reviewing the OPA377QDBVRQ1 datasheet, OPA377QDBVRQ1 pinout, OPA377QDBVRQ1 application, or OPA377QDBVRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade specifications (AEC-Q100 Grade 1), real-world application mappings, and two rigorously cross-checked alternative parts with documented functional and packaging differences.
Technical Context
The OPA377QDBVRQ1 employs a precision CMOS input stage with rail-to-rail common-mode range extending 100 mV beyond both supply rails, supporting operation from 2.2 V to 5.5 V. Its 5.5 MHz GBW and 2 V/µs slew rate enable stable unity-gain buffer and active filter configurations up to 25 kHz.
It integrates EMI-rejecting input filtering (–3 dB at ~75 MHz) and supports direct drive of up to 250 pF capacitive loads in unity-gain configuration. Input bias current remains ultra-low (±0.2 pA typical) across –40°C to +125°C, ensuring minimal offset drift in unregulated automotive power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.2 V to 5.5 V - enables direct connection to 3.3 V or 5 V automotive rails without regulation |
| Gain-Bandwidth Product | 5.5 MHz - supports stable second-order active filters up to 25 kHz cutoff frequency |
| Input Offset Voltage | 250 µV (typical) - ensures <1 mV error in 4–20 mA loop receivers or bridge sensor interfaces |
| Voltage Noise Density | 7.5 nV/√Hz at 1 kHz - preserves SNR in low-level thermocouple or strain gauge amplification |
| Quiescent Current | 760 µA (typical) - allows continuous operation in always-on vehicle subsystems with <10 µW idle power per channel |
| Operating Temperature | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and cabin electronics |
| Common-Mode Range | Rail-to-rail (V– – 0.1 V to V+ + 0.1 V) - accommodates ground-referenced sensors in single-supply systems |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal output; rail-to-rail swing supports full dynamic range into 10 kΩ load |
| 2 - V– | Negative Supply | Lowest potential supply rail; tied to GND in single-supply operation |
| 3 - +IN | Noninverting Input | High-impedance CMOS node; accepts signals from V– – 0.1 V to V+ + 0.1 V |
| 4 - –IN | Inverting Input | Differential input node; used for feedback and gain-setting networks |
| 5 - V+ | Positive Supply | Highest potential supply rail; operates down to 2.2 V for extended battery life |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ±4 kV and CDM ±1 kV ESD robustness |
| EMI input filtering | Integrated low-pass filter (–3 dB at ~75 MHz) suppresses RF rectification-induced offset shifts |
| Capacitive load drive | Stable with up to 250 pF in unity-gain; enhanced stability via 10–20 Ω series output resistor |
| Ultra-low input bias current | ±0.2 pA typical - prevents significant voltage drop across >100 MΩ source impedances |
| 0.1 Hz to 10 Hz noise | 0.8 µVPP - critical for DC-coupled sensor front-ends requiring sub-microvolt baseline stability |
Applications
| Active Cruise Control Radar Signal Conditioning | Park Assist Ultrasonic Transceiver Amplifier |
|---|---|
Use Scenario: Amplifies weak differential IF signals from 24 GHz radar mixers before ADC sampling. IC Role / Device Role / Timing Role: Precision DC-coupled transimpedance and gain stage with low 1/f noise and high PSRR. Use Value: 7.5 nV/√Hz noise floor and 5.5 MHz bandwidth preserve radar range resolution; 760 µA IQ enables always-on detection mode. |
Use Scenario: Buffers and conditions echo return signals from ultrasonic parking sensors operating at 40–70 kHz. IC Role / Device Role / Timing Role: Rail-to-rail I/O buffer with fast settling (1.6 µs to 0.1%) for pulse-echo timing accuracy. Use Value: 2 V/µs slew rate and 250 µV offset ensure precise time-of-flight measurement; SOT-23-5 footprint minimizes PCB area in tight bumper modules. |
| Tire Pressure Monitoring System (TPMS) Sensor Interface | Infotainment Audio Line Driver |
Use Scenario: Amplifies millivolt-level outputs from piezoresistive pressure sensors inside wheel assemblies. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier front-end with battery-supplied 3.3 V operation. Use Value: 0.32 µV/°C offset drift and 250 µV initial offset minimize calibration burden; 2.2 V min supply extends battery life in cold environments. |
Use Scenario: Drives analog audio outputs (e.g., AUX, headphone) from DSPs in head units with minimal distortion. IC Role / Device Role / Timing Role: Unity-gain line driver with THD+N = 0.00027% at 1 kHz for high-fidelity playback. Use Value: Rail-to-rail output swing delivers full 3.3 Vpp signal into 10 kΩ loads; low 7.5 nV/√Hz noise preserves audio SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV771QDBVRQ1 | Lower GBW (1.5 MHz), higher IQ (1.15 mA), same SOT-23-5 package and AEC-Q100 Grade 1 rating | Not suitable for >10 kHz active filters or fast-settling sensor interfaces | Select when cost sensitivity outweighs bandwidth needs and lower noise is not required |
| OPA333QDBVRQ1 | Zero-drift architecture, 0.02 µV/°C drift, but lower GBW (350 kHz) and higher 1/f noise (0.7 µVPP) | Better for DC-stable thermistor or RTD interfaces; unsuitable for AC-coupled radar or audio | Prefer for ultra-low drift DC measurements where bandwidth <100 kHz suffices |
Compared with LMV771QDBVRQ1 and OPA333QDBVRQ1, the OPA377QDBVRQ1 uniquely balances 5.5 MHz bandwidth, 7.5 nV/√Hz noise, and 760 µA quiescent current in an AEC-Q100-qualified SOT-23-5 package - making it the only option among the three for high-SNR, medium-bandwidth automotive signal chains requiring simultaneous precision and speed.
Availability
OPA377QDBVRQ1 is available at Aetrix Electronics and suitable for active cruise control, park assist, and tire pressure monitoring systems requiring stable component supply across automotive production lifecycles.
Supply support for OPA377QDBVRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and personal electronics markets.
The OPAx377-Q1 product line was designed specifically for AEC-Q100-compliant, low-power, high-precision signal conditioning in automotive ADAS and body electronics - emphasizing noise performance, rail-to-rail operation, and wide supply flexibility.
FAQ
What is the maximum capacitive load the OPA377QDBVRQ1 can drive stably in unity-gain configuration?
The OPA377QDBVRQ1 can directly drive up to 250 pF of pure capacitive load while maintaining phase margin and avoiding oscillation in unity-gain buffer configuration. For loads exceeding this value, a 10–20 Ω series resistor placed between the output pin and the capacitive load restores stability without degrading DC accuracy - a method validated in TI's SBOS797A datasheet Figure 24. This capability is critical for driving ADC input capacitance or long PCB traces in automotive sensor nodes.
Does the OPA377QDBVRQ1 support true rail-to-rail input common-mode range?
Yes, the OPA377QDBVRQ1 supports a rail-to-rail input common-mode voltage range from (V–) – 0.1 V to (V+) + 0.1 V, as specified in Section 6.7 of the SBOS797A datasheet. This allows direct interfacing with ground-referenced sensors and single-ended sources in 3.3 V or 5 V systems. However, input offset voltage increases when common-mode voltage exceeds (V+) – 1 V, so optimal DC precision is maintained within (V–) to (V+) – 1.3 V.
What AEC-Q100 stress test results apply specifically to the OPA377QDBVRQ1?
The OPA377QDBVRQ1 is qualified per AEC-Q100 with Device Temperature Grade 1 (–40°C to +125°C ambient), Human-Body Model ESD Level 3A (±4000 V), and Charged-Device Model ESD Level C6 (±1000 V). These results are explicitly stated in the "Features" section of the SBOS797A datasheet and apply to the OPA377QDBVRQ1 device itself - not inferred from family-level claims.
Can the OPA377QDBVRQ1 operate from a 2.2 V single supply?
Yes, the OPA377QDBVRQ1 is fully specified for operation from 2.2 V to 5.5 V single supply, including all key parameters (GBW, noise, offset, PSRR) across –40°C to +125°C. At 2.2 V, it maintains 5.5 MHz gain-bandwidth and 760 µA typical quiescent current, enabling use in energy-constrained automotive subsystems powered directly by aging or cold batteries without LDO regulation.
Is there internal EMI filtering in the OPA377QDBVRQ1, and what is its cutoff frequency?
Yes, the OPA377QDBVRQ1 integrates internal input EMI filtering with a –3 dB cutoff frequency of approximately 75 MHz, providing both common-mode and differential-mode rejection. As described in Section 7.3.4 of SBOS797A, this filter reduces rectification-induced offset shifts caused by RF interference - a critical feature for automotive environments with high electromagnetic noise from ignition systems and infotainment radios.
OPA377QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 760µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 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-23-5
OPA377QDBVRQ1 FAQ
1.How can I place an order for OPA377QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA377QDBVRQ1 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 OPA377QDBVRQ1 reliable?
The price and inventory of OPA377QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA377QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for OPA377QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA377QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA377QDBVRQ1?
OPA377QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA377QDBVRQ1 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 OPA377QDBVRQ1?
For technical support, including OPA377QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA377QDBVRQ1 requirements.
6.How does Aetrix verify that OPA377QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA377QDBVRQ1 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 OPA377QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of OPA377QDBVRQ1?
All OPA377QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA377QDBVRQ1, 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 OPA377QDBVRQ1 part is unused and in its original packaging.
Return procedure for OPA377QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA377QDBVRQ1 Tags
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