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Texas Instruments OPA992QDBVRQ1
- Part No.:
- OPA992QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA992QDBVRQ1.pdf
- Description:
- AUTOMOTIVE, SINGLE, 40-V, 10-MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,185
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Product details
Overview
OPA992QDBVRQ1 from Texas Instruments is a single-channel, AEC-Q100 Grade 1 automotive operational amplifier with rail-to-rail input and output, ±210 µV max offset voltage, 10.6 MHz gain-bandwidth, and 32 V/µs slew rate - deployed in high-side current sensing and traction inverter voltage monitoring circuits.
For engineers reviewing the OPA992QDBVRQ1 datasheet, OPA992QDBVRQ1 pinout, OPA992QDBVRQ1 application, or OPA992QDBVRQ1 equivalent, this page delivers verified electrical specs, package-validated pin functions, automotive-grade thermal and ESD performance data, and real-world use-case implementation guidance for HEV/EV powertrain systems.
Technical Context
The OPA992QDBVRQ1 implements a patented MUX-friendly front-end architecture with dual-input-stage (NCH/PCH) topology enabling full 40-V differential input tolerance and operation as an open-loop comparator without phase reversal. Its rail-to-rail input extends to both supply rails, supporting direct connection to battery-sensed nodes in 12 V–48 V automotive subsystems.
It features unity-gain stability with 64° phase margin at 20 pF capacitive load, robust EMIRR >100 dB up to 1 GHz, and low 7 nV/√Hz noise at 1 kHz - optimized for precision signal conditioning in noisy high-voltage environments such as DC/DC converters and on-board chargers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V (±1.35 V to ±20 V): supports 12 V, 24 V, and 48 V automotive battery architectures without external level-shifting. |
| Input Offset Voltage | ±0.21 mV (typ), ±1.2 mV (max over –40°C to +125°C): enables <0.1% error in 100 mV shunt-based current sensing at full temperature range. |
| Gain-Bandwidth Product | 10.6 MHz: supports closed-loop bandwidth >1 MHz at G = 10 for fast transient response in motor control feedback loops. |
| Slew Rate | 32 V/µs: ensures distortion-free amplification of 10 V step signals within 0.3 µs settling time (0.1%) - critical for eCall audio pre-amplification. |
| Common-Mode Rejection | 115 dB (typ): rejects >100,000:1 common-mode interference from high-dV/dt inverters, preserving accuracy in noisy TCU analog front-ends. |
| Quiescent Current | 2.48 mA per amplifier (typ at 25°C): balances low-power operation with high-speed performance for always-on telematics modules. |
| ESD Rating | HBM ±2000 V, CDM ±1500 V (AEC-Q100-002/-011): meets automotive board-level ESD immunity requirements without external protection. |
Pinout & Package
OPA992QDBVRQ1 is packaged in a 5-pin SOT-23 (DBV) footprint measuring 2.9 mm × 2.8 mm, qualified for reflow soldering and automotive under-hood mounting.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output node; drives 10 kΩ loads to within 48 mV of rails at 40 V supply - suitable for direct interface to SAR ADC reference buffers. |
| 2 | V– | Negative supply terminal; accepts ground or negative rail down to –20 V - enables bipolar operation in external amplifier designs. |
| 3 | IN+ | Noninverting input; supports common-mode voltage from V– to V+, enabling direct connection to battery-sensed points without attenuation. |
| 4 | IN– | Inverting input; same rail-to-rail CM range as IN+; differential input withstands ±40 V - allows comparator-mode use in emergency call fault detection. |
| 5 | V+ | Positive supply terminal; rated for up to 42 V absolute max - compatible with 48 V mild-hybrid systems with transient overvoltage margin. |
Key Features
| Feature | Design Value |
|---|---|
| MUX-friendly inputs | Full 40 V differential input range with no internal clamping diodes - eliminates settling delay and distortion in multiplexed battery cell monitoring. |
| Rail-to-rail I/O | Input common-mode extends to both supply rails; output swings to within 7 mV of rails (no load) - maximizes dynamic range in low-voltage HEV DC/DC controllers. |
| Low noise density | 4.4 nV/√Hz at 10 kHz - preserves SNR in wideband audio paths for automotive head units operating above 20 kHz. |
| High short-circuit current | ±65 mA output drive - sustains stable operation during load transients in traction inverter gate driver bias supplies. |
| EMI rejection | EMIRR >100 dB at 100 MHz - suppresses RF coupling from wireless charging coils into OBC sensor signal chains. |
Applications
| High-Side Current Sensing | Traction Inverter Voltage Monitoring |
|---|---|
|
Use Scenario: Measuring motor phase current via shunt resistor placed between high-side switch and battery positive in 400 V EV inverters. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail input referenced to 400 V common-mode potential. Use Value: ±210 µV offset enables sub-1% current measurement accuracy across –40°C to +125°C without calibration. |
Use Scenario: Scaling and conditioning DC-link voltage for isolation amplifier input in SiC-based traction inverters. IC Role / Device Role / Timing Role: High-voltage attenuator buffer with 115 dB CMRR rejecting switching noise from 10 kHz–100 kHz PWM edges. Use Value: 32 V/µs slew rate ensures faithful reproduction of fast voltage transients during fault events. |
| Automotive Head Unit Audio Preamp | eCall Microphone Signal Conditioning |
|
Use Scenario: Low-noise amplification of MEMS microphone output before ADC in infotainment systems. IC Role / Device Role / Timing Role: Single-supply, low-noise op amp operating from 5 V rail with 7 nV/√Hz input noise at 1 kHz. Use Value: 10.6 MHz GBW supports flat frequency response up to 20 kHz with <0.00005% THD+N at 3 VRMS output. |
Use Scenario: Amplifying crash-detection accelerometer signals and voice pickup in emergency call modules. IC Role / Device Role / Timing Role: AEC-Q100 qualified amplifier with ±2000 V HBM ESD rating for unshielded cabin-mounted sensors. Use Value: 0.3 µs 0.1% settling time ensures accurate capture of 100 ms impact transients for reliable eCall trigger logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA991QDBVRQ1 | Same pinout and package; lower 4.5 MHz GBW and 15 V/µs slew rate; ±300 µV max offset. | Targeted at cost-sensitive, lower-bandwidth applications like HVAC sensor interfaces - not suitable for fast-switching inverter monitoring. | Select OPA991QDBVRQ1 only when bandwidth <5 MHz and slew rate <20 V/µs are acceptable. |
| LM7332QMA/NOPB | SOIC-8 package; ±15 V max supply; 20 MHz GBW but higher 1.2 mV offset and no AEC-Q100 qualification. | Used in industrial test equipment; lacks automotive temperature grade and ESD ratings required for TCU deployment. | LM7332QMA/NOPB requires full requalification for automotive use and PCB layout redesign due to different footprint and thermal profile. |
Compared with OPA991QDBVRQ1 and LM7332QMA/NOPB, the OPA992QDBVRQ1 uniquely combines AEC-Q100 Grade 1 qualification, 10.6 MHz bandwidth, ±210 µV offset, and SOT-23 packaging - making it the only drop-in solution for space-constrained, high-accuracy HEV/EV powertrain signal chains.
Availability
OPA992QDBVRQ1 is available at Aetrix Electronics and suitable for traction inverter monitoring, HEV/EV on-board charger feedback, and automotive telematics control unit (TCU) analog front-ends requiring stable component supply across extended temperature and voltage ranges.
Supply support for OPA992QDBVRQ1 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 delivering analog and embedded processing solutions, with over 90 years of innovation in automotive-grade IC design and manufacturing.
The OPAx992-Q1 family was developed specifically for high-voltage, high-precision signal conditioning in next-generation electric vehicle power electronics - emphasizing rail-to-rail operation, low drift, and robustness against EMI and ESD in harsh automotive environments.
FAQ
What is the maximum supply voltage rating for OPA992QDBVRQ1?
The OPA992QDBVRQ1 has an absolute maximum supply voltage of 42 V (V+ to V–), with recommended operation from 2.7 V to 40 V. This allows direct integration into 48 V mild-hybrid systems while maintaining 2 V headroom for load dump transients - a key requirement validated in AEC-Q100 stress testing.
Does OPA992QDBVRQ1 support true rail-to-rail input at 40 V supply?
Yes, OPA992QDBVRQ1 supports common-mode input voltage from V– to V+ across its full 40 V supply range. This is confirmed by datasheet Figure 5-5 and Section 5.7, enabling direct connection to high-side shunt resistors without external level-shifting circuitry - a core feature distinguishing it from legacy automotive op amps.
Can OPA992QDBVRQ1 be used as a comparator?
Yes, OPA992QDBVRQ1 is explicitly designed for open-loop comparator use: its MUX-friendly inputs tolerate full 40 V differential swing, and Figure 5-34 confirms no phase reversal. However, it lacks built-in hysteresis or latch functionality - external feedback is required for clean digital output in eCall fault-detection circuits.
What is the thermal resistance (RθJA) of OPA992QDBVRQ1 in SOT-23 package?
The OPA992QDBVRQ1 in DBV (SOT-23) package has a junction-to-ambient thermal resistance (RθJA) of 189.3°C/W, as specified in Section 5.4 of the datasheet. This value assumes standard JEDEC 2-layer board conditions and informs thermal design for continuous 2.48 mA quiescent operation in sealed TCU enclosures.
Is OPA992QDBVRQ1 qualified for automotive safety-critical applications?
OPA992QDBVRQ1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ±2000 V and CDM ±1500 V ESD ratings. While it is not ISO 26262 ASIL-certified as a standalone component, its robust parametric stability and failure-mode documentation support use in ASIL-B/C system designs when implemented per TI's functional safety manual for OPAx992-Q1.
OPA992QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 1
- Output Type:
- Single Ended, Rail-to-Rail
- Slew Rate:
- 32V/µs
- Gain Bandwidth Product:
- 10.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 210 µV
- Current - Supply:
- 2.48mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA992QDBVRQ1 FAQ
1.How can I place an order for OPA992QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA992QDBVRQ1 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 OPA992QDBVRQ1 reliable?
The price and inventory of OPA992QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA992QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for OPA992QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA992QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA992QDBVRQ1?
OPA992QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA992QDBVRQ1 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 OPA992QDBVRQ1?
For technical support, including OPA992QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA992QDBVRQ1 requirements.
6.How does Aetrix verify that OPA992QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA992QDBVRQ1 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 OPA992QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of OPA992QDBVRQ1?
All OPA992QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA992QDBVRQ1, 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 OPA992QDBVRQ1 part is unused and in its original packaging.
Return procedure for OPA992QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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