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Texas Instruments OPA2377QDGKRQ1
- Part No.:
- OPA2377QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2377QDGKRQ1.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:422
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Product details
Overview
OPA2377QDGKRQ1 from Texas Instruments is a dual-channel, automotive-grade precision operational amplifier optimized for low-noise, low-quiescent-current signal conditioning in battery-powered systems. It delivers 7.5 nV/√Hz input voltage noise at 1 kHz, 250 μV typical offset voltage, 5.5 MHz gain-bandwidth product, rail-to-rail input/output swing, and operates from 2.2 V to 5.5 V single supply - enabling high-accuracy sensor front-ends in active cruise control and tire pressure monitoring.
For engineers reviewing the OPA2377QDGKRQ1 datasheet, OPA2377QDGKRQ1 pinout, OPA2377QDGKRQ1 application, or OPA2377QDGKRQ1 equivalent, key selection considerations include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), 760 μA per amplifier quiescent current, 0.8 μVPP 0.1-Hz to 10-Hz noise, CMOS input architecture with ±0.2 pA bias current, and VSSOP-8 package compatibility with space-constrained automotive PCB layouts.
Technical Context
The OPA2377QDGKRQ1 employs a precision CMOS input stage with rail-to-rail common-mode range extending 100 mV beyond both supply rails, supporting direct interfacing with unregulated battery sources. Its internal EMI-rejecting input filter (–3 dB at ~75 MHz) mitigates rectification-induced offset shifts in noisy automotive environments.
It features unity-gain stable operation with up to 250 pF capacitive load drive capability, enhanced by optional series output resistance (10–20 Ω) for improved pulse response. The device maintains 112 dB open-loop gain and 90 dB CMRR over temperature, ensuring dc precision in dynamic operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5.5 MHz - supports stable closed-loop gain ≥2 with bandwidth >2 MHz for fast sensor signal amplification. |
| Input Voltage Noise | 7.5 nV/√Hz at 1 kHz - enables resolution of microvolt-level signals in low-amplitude sensor interfaces. |
| 0.1–10 Hz Noise | 0.8 μVPP - critical for dc-coupled applications like pressure or temperature sensing where low-frequency drift dominates error budget. |
| Quiescent Current | 760 μA per amplifier - allows dual-channel precision amplification in always-on automotive modules without excessive battery drain. |
| Offset Voltage | 250 μV typical - ensures <±1 mV total input-referred error before trimming in 12-bit ADC front-ends. |
| Supply Range | 2.2 V to 5.5 V - directly interfaces with 3.3 V or unregulated 12 V battery-derived rails using simple LDOs or buck converters. |
| Operating Temperature | –40°C to +125°C ambient - meets AEC-Q100 Grade 1 requirements for under-hood and cabin-mounted ECUs. |
Pinout & Package
The OPA2377QDGKRQ1 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for thermal performance (RθJA = 171.2°C/W) and high-density automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Output, channel A | Amplified signal source for first channel; rail-to-rail swing supports full-scale ADC input drive. |
| 2 (–IN A) | Inverting input, channel A | High-impedance node for feedback networks; accepts differential or inverting configurations. |
| 3 (+IN A) | Noninverting input, channel A | Direct connection point for reference or sensor signals; CMOS input draws <±0.2 pA. |
| 4 (V–) | Negative power supply | Ground reference for single-supply operation; must be connected even when using 0 V as return. |
| 5 (+IN B) | Noninverting input, channel B | Independent second channel input; enables dual-sensor conditioning or signal buffering + filtering. |
| 6 (–IN B) | Inverting input, channel B | Separate feedback node for channel B; no crosstalk with channel A due to >140 dB channel separation. |
| 7 (OUT B) | Output, channel B | Second independent output; supports simultaneous processing of two analog channels without multiplexing delay. |
| 8 (V+) | Positive power supply | Primary power rail; PSRR >100 dB ensures immunity to ripple on battery-derived supplies. |
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 - suitable for safety-critical ADAS subsystems. |
| Rail-to-rail I/O | Input common-mode range extends 100 mV beyond supply rails; output swings within 20 mV of rails at 10 kΩ load - maximizes dynamic range in low-voltage systems. |
| Low 0.1–10 Hz noise | 0.8 μVPP enables stable dc measurements in tire pressure sensors and MEMS accelerometers without post-acquisition filtering. |
| EMI-hardened input filter | Integrated 75 MHz low-pass filter suppresses RF rectification effects from AM/FM bands and switching regulators - eliminates need for external RFI suppression. |
| Capacitive load drive | Stable with up to 250 pF pure capacitance; supports direct connection to long traces or ADC input capacitors without external isolation resistors. |
Applications
| Active Cruise Control Radar Signal Conditioning | Park Assist Ultrasonic Transducer Interface |
|---|---|
Use Scenario: Amplifying weak IF signals from 24 GHz radar receivers prior to ADC sampling in adaptive cruise control modules. IC Role / Device Role / Timing Role: Dual-channel precision op amp providing low-noise, low-drift gain with matched channel characteristics for differential IF signal processing. Use Value: 7.5 nV/√Hz noise floor preserves SNR of microvolt-level radar echoes; 5.5 MHz bandwidth supports >10 MHz IF signal fidelity. | Use Scenario: Buffering and conditioning echo pulses from ultrasonic transducers in automated parking assist systems. IC Role / Device Role / Timing Role: High-speed dual op amp driving ADC inputs while rejecting EMI from nearby motors and inverters. Use Value: Integrated 75 MHz EMI filter prevents false trigger events; rail-to-rail output ensures full utilization of 12-bit ADC reference range. |
| Tire Pressure Monitoring System (TPMS) Front-End | Infotainment Audio Pre-Amplifier |
Use Scenario: Amplifying millivolt-level bridge outputs from MEMS pressure sensors inside rotating wheel assemblies. IC Role / Device Role / Timing Role: Precision dual op amp performing low-drift, low-power signal conditioning in battery-operated TPMS sensors. Use Value: 250 μV offset and 0.32 μV/°C drift minimize calibration frequency; 760 μA quiescent current extends 10-year battery life. | Use Scenario: Low-noise pre-amplification of analog audio inputs (e.g., AUX, microphone) in automotive head units. IC Role / Device Role / Timing Role: Dual-channel op amp providing gain, filtering, and DC blocking before audio codec interface. Use Value: 0.00027% THD+N at 1 kHz ensures high-fidelity playback; rail-to-rail I/O simplifies single-supply audio design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333QDGKRQ1 | Zero-drift architecture; 0.02 μV/°C max drift vs. 2 μV/°C for OPA2377QDGKRQ1; higher 350 μA quiescent current per channel. | Better for ultra-stable dc measurements (e.g., strain gauge bridges); less optimal for wideband sensor signals due to chopping artifacts. | Select OPA2333QDGKRQ1 when sub-μV drift dominates system error budget over bandwidth or noise. |
| LMV722QDGKRQ1 | Higher 1.3 mA quiescent current; lower 1.5 MHz GBW; 12 nV/√Hz noise at 1 kHz; not AEC-Q100 Grade 1 qualified. | Suitable for non-safety-critical cabin modules; insufficient bandwidth/noise performance for radar or high-resolution TPMS. | Select LMV722QDGKRQ1 only for cost-sensitive, non-automotive-qualified designs requiring basic dual op amp functionality. |
Compared with OPA2333QDGKRQ1 and LMV722QDGKRQ1, the OPA2377QDGKRQ1 uniquely balances 5.5 MHz bandwidth, 7.5 nV/√Hz noise, 760 μA quiescent current, and AEC-Q100 Grade 1 compliance - making it the optimal choice for automotive sensor signal chains demanding both speed and precision under extended temperature operation.
Availability
OPA2377QDGKRQ1 is available at Aetrix Electronics and suitable for active cruise control, park assist, tire pressure monitoring, infotainment, and active filtering applications requiring stable component supply across automotive production lifecycles.
Supply support for OPA2377QDGKRQ1 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 designing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and consumer markets.
The OPAx377-Q1 product line delivers low-noise, low-quiescent-current precision op amps specifically engineered for automotive sensor signal conditioning, battery-powered ADAS subsystems, and high-fidelity analog front-ends in harsh-temperature environments.
FAQ
What automotive qualification level does the OPA2377QDGKRQ1 meet?
The OPA2377QDGKRQ1 is AEC-Q100 qualified for Grade 1 operation, with full specification over –40°C to +125°C ambient temperature, HBM ESD rating of ±4000 V, and CDM ESD rating of ±1000 V - meeting requirements for engine bay and cabin-mounted electronic control units.
Can the OPA2377QDGKRQ1 drive a 1000-pF capacitive load?
No, the OPA2377QDGKRQ1 is specified for stable operation with up to 250 pF of pure capacitive load in unity-gain configuration. Driving 1000 pF requires external compensation, such as a 10–20 Ω series resistor at the output, or increasing noise gain above unity to improve phase margin.
What is the maximum supply voltage for the OPA2377QDGKRQ1?
The absolute maximum supply voltage for the OPA2377QDGKRQ1 is 7 V, but the recommended operating range is 2.2 V to 5.5 V. Operation above 5.5 V risks permanent damage and violates AEC-Q100 stress limits defined in the datasheet.
Does the OPA2377QDGKRQ1 support true rail-to-rail input common-mode range?
Yes, the OPA2377QDGKRQ1 supports rail-to-rail input with common-mode voltage range from (V–) – 0.1 V to (V+) + 0.1 V. However, offset voltage remains lowest and CMRR highest only within (V–) to (V+) – 1.3 V - outside this region, performance degrades gradually.
How does the integrated EMI filter in the OPA2377QDGKRQ1 improve system reliability?
The OPA2377QDGKRQ1 incorporates an internal low-pass input filter with –3 dB attenuation at ~75 MHz, reducing rectification-induced dc offset shifts caused by AM/FM broadcast, cellular, or switching regulator noise - eliminating field failures in automotive environments without requiring external ferrite beads or RC filters.
OPA2377QDGKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- 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 (x2 Channels)
- 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:
- 8-VSSOP
OPA2377QDGKRQ1 FAQ
1.How can I place an order for OPA2377QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2377QDGKRQ1 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 OPA2377QDGKRQ1 reliable?
The price and inventory of OPA2377QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2377QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for OPA2377QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2377QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2377QDGKRQ1?
OPA2377QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2377QDGKRQ1 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 OPA2377QDGKRQ1?
For technical support, including OPA2377QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2377QDGKRQ1 requirements.
6.How does Aetrix verify that OPA2377QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA2377QDGKRQ1 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 OPA2377QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of OPA2377QDGKRQ1?
All OPA2377QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2377QDGKRQ1, 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 OPA2377QDGKRQ1 part is unused and in its original packaging.
Return procedure for OPA2377QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2377QDGKRQ1 Tags
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