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Texas Instruments OPA2992QDRQ1
- Part No.:
- OPA2992QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2992QDRQ1.pdf
- Description:
- AUTOMOTIVE, DUAL, 40-V, 10-MHZ R
- Quantity:
- Payment:
- Shipping:
Inventory:586
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Product details
Overview
OPA2992QDRQ1 from Texas Instruments is a dual-channel, AEC-Q100 Grade 1 automotive operational amplifier with rail-to-rail input and output, ±210 µV typical offset voltage, 10.6 MHz gain-bandwidth, and 32 V/µs slew rate - deployed in high-side current sensing and traction inverter feedback loops within HEV/EV power stages.
For engineers reviewing the OPA2992QDRQ1 datasheet, OPA2992QDRQ1 pinout, OPA2992QDRQ1 application, or OPA2992QDRQ1 equivalent, this page delivers verified electrical specs, validated dual-channel pin mapping for DGK (VSSOP-8), automotive thermal performance data, and real-world selection guidance against comparable dual op amps for 40V automotive signal conditioning.
Technical Context
The OPA2992QDRQ1 integrates a patented MUX-friendly front end enabling full-rail differential input swing up to 40 V without clamping diodes - eliminating transient-induced settling delays in multiplexed sensor interfaces. Its dual-channel architecture shares a common high-voltage (±20 V / 2.7–40 V) supply domain while maintaining channel separation >115 dB CMRR and <0.4 µV/V DC coupling error.
It employs complementary PMOS/NMOS input stages to sustain rail-to-rail common-mode range across temperature (–40°C to +125°C), supports open-loop comparator operation, and delivers 65 mA short-circuit output current per channel - critical for driving capacitive loads in motor control feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V (or ±1.35 V to ±20 V): supports single-supply HEV battery monitoring and dual-supply inverter gate driver biasing. |
| Input Offset Voltage | ±0.21 mV typical (±1.2 mV max over –40°C to +125°C): enables sub-1% accuracy in shunt-based current measurement at 100 A. |
| Offset Drift | ±0.25 µV/°C typical: contributes <0.3 µV error over full automotive temperature range - negligible vs. 210 µV initial offset. |
| Gain-Bandwidth Product | 10.6 MHz: supports closed-loop bandwidth >1 MHz at G = 10 for fast-response motor phase current regulation. |
| Slew Rate | 32 V/µs: ensures distortion-free amplification of 10-V step signals within 0.3 µs (0.1% settling), critical for PWM edge fidelity. |
| Common-Mode Rejection | 115 dB (typical at 40 V): rejects noise from high-dv/dt inverter switching nodes when measuring high-side shunt voltages. |
| Quiescent Current | 2.4 mA per amplifier: allows dual-channel precision amplification in always-on telematics modules with <5 mW total dissipation. |
Pinout & Package
DGK package: 8-pin VSSOP (3 mm × 4.9 mm), thermally enhanced for automotive under-hood mounting; pin-compatible with industry-standard dual op amp footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Channel 1 output - drives feedback loop of high-side current sense amplifier; rail-to-rail swing supports 0–40 V dynamic range. |
| 2 | IN1– | Inverting input, channel 1 - accepts shunt resistor low-side voltage; MUX-friendly design tolerates ±40 V differential transients. |
| 3 | IN1+ | Noninverting input, channel 1 - referenced to system ground or isolated potential; high ZICM (6 TΩ) minimizes leakage error. |
| 4 | V– | Negative supply terminal - connects to battery ground or isolated negative rail; handles continuous 65 mA sink per channel. |
| 5 | IN2+ | Noninverting input, channel 2 - used for auxiliary sensor conditioning (e.g., temperature or voltage monitor); independent bias path. |
| 6 | IN2– | Inverting input, channel 2 - supports differential measurement of auxiliary signals; same robust input architecture as CH1. |
| 7 | OUT2 | Channel 2 output - drives secondary feedback or diagnostic path; matched AC performance ensures channel-to-channel timing alignment. |
| 8 | V+ | Positive supply terminal - accepts up to 40 V directly from 48 V battery or pre-regulated 12 V rail; integrated ESD protection (HBM ±2.5 kV). |
Key Features
| Feature | Design Value |
|---|---|
| MUX-friendly inputs | Full 40 V differential input capability without clamping diodes - eliminates settling delay in multiplexed battery cell monitoring systems. |
| Rail-to-rail I/O | Input common-mode range extends to both supply rails; output swings within 7 mV of rails at no load - maximizes dynamic range in 3.3 V MCU interfaces. |
| AEC-Q100 Grade 1 | Qualified from –40°C to +125°C ambient; HBM ±2.5 kV / CDM ±1.5 kV ESD rating - meets automotive module-level reliability requirements. |
| Low 1/f noise | 2.77 µVPP (0.1–10 Hz): reduces drift-induced error in slow-sampling battery SOC estimation algorithms. |
| High EMIRR | >100 dB rejection at 100 MHz - suppresses RF interference from nearby wireless charging or radar subsystems in vehicle cabin. |
| Unity-gain stable | No external compensation required - simplifies layout in space-constrained TCU and OBC PCBs with minimal BOM overhead. |
Applications
| High-Side Current Sensing | Traction Inverter Feedback |
|---|---|
Use Scenario: Measuring motor phase current via 500 µΩ shunt resistor in 400 V EV inverter half-bridge. IC Role / Device Role / Timing Role: Dual-channel OPA2992QDRQ1 configures CH1 as high-side differential amplifier (gain = 100) and CH2 as reference buffer for isolated ADC. Use Value: 115 dB CMRR rejects 400 Vpk switching noise; 32 V/µs slew rate preserves 10 kHz PWM edge integrity for precise torque control. |
Use Scenario: Closed-loop voltage regulation of DC-link capacitor in 800 V traction inverter using resistive divider feedback. IC Role / Device Role / Timing Role: OPA2992QDRQ1 CH1 buffers scaled DC-link voltage; CH2 conditions gate driver enable signal with comparator mode fallback. Use Value: 10.6 MHz GBW supports >500 kHz loop bandwidth; rail-to-rail output drives 3.3 V ADC input without level-shifting components. |
| On-Board Charger (OBC) Control | Telematics Control Unit (TCU) |
Use Scenario: Isolated current sensing in bidirectional OBC AC/DC and DC/DC stages during 11 kW charging. IC Role / Device Role / Timing Role: OPA2992QDRQ1 provides primary-side current feedback and secondary-side voltage regulation error amplification. Use Value: ±210 µV offset enables <0.5% full-scale error at 200 A; 2.4 mA IQ permits always-on status monitoring with <10 mW standby loss. |
Use Scenario: Signal conditioning for GNSS antenna LNA bias, CAN transceiver reference, and cellular modem power monitor. IC Role / Device Role / Timing Role: Dual op amp channels condition analog sensor outputs and provide precision voltage references for mixed-signal SoC peripherals. Use Value: 4.4 nV/√Hz broadband noise ensures clean GPS RF front-end bias; AEC-Q100 qualification guarantees 15-year field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQDRQ1 | Lower voltage (36 V max), higher offset (±1.5 mV), slower GBW (1.2 MHz), no MUX-friendly inputs | Cost-sensitive body electronics; unsuitable for 40 V HEV/EV power stages or fast current sensing | Select only for non-safety-critical 12 V systems where precision and speed are secondary to BOM cost. |
| TSV912IQDRQ1 | Lower voltage (16 V max), lower noise (12 nV/√Hz), no AEC-Q100 Grade 1 rating, smaller SOT-23 footprint | Infotainment audio preamps or low-power sensor nodes; cannot withstand 40 V battery transients | Use only in 5 V or 12 V domains with strict size constraints; not qualified for powertrain or safety-related functions. |
Compared with LM2904BQDRQ1 and TSV912IQDRQ1, the OPA2992QDRQ1 uniquely combines 40 V operation, AEC-Q100 Grade 1, MUX-friendly inputs, and 10.6 MHz bandwidth - making it the sole option for precision, high-speed current sensing in next-generation EV inverters and OBCs.
Availability
OPA2992QDRQ1 is available at Aetrix Electronics and suitable for traction inverter feedback, on-board charger (OBC) control, and telematics control unit (TCU) signal conditioning requiring stable component supply across automotive production lifecycles.
Supply support for OPA2992QDRQ1 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 for automotive, industrial, and personal electronics markets.
The OPAx992-Q1 product line targets high-voltage automotive signal conditioning - specifically engineered for precision current/voltage sensing, motor control feedback, and power conversion monitoring in HEV/EV systems operating up to 40 V.
FAQ
What is the maximum supply voltage for OPA2992QDRQ1?
The OPA2992QDRQ1 supports a supply voltage range of 2.7 V to 40 V (single supply) or ±1.35 V to ±20 V (dual supply). Absolute maximum rating is 42 V, but operation above 40 V risks permanent damage. This 40 V rating enables direct interface with 48 V automotive batteries after transient suppression, unlike legacy op amps limited to 36 V.
Does OPA2992QDRQ1 support rail-to-rail input and output simultaneously?
Yes, the OPA2992QDRQ1 supports rail-to-rail input common-mode range (from V– to V+) and rail-to-rail output swing (within 7 mV of rails at no load). This dual rail-to-rail capability allows full utilization of supply headroom in both sensing and driving stages - essential for maximizing SNR in low-voltage MCU interfaces fed by high-voltage shunts.
Can OPA2992QDRQ1 be used as a comparator?
Yes, the OPA2992QDRQ1 is explicitly designed for open-loop comparator operation due to its MUX-friendly inputs, which tolerate differential input voltages up to 40 V without forward-biasing internal protection structures. It exhibits no phase reversal and recovers from overload in 170 ns - making it suitable for overcurrent detection in traction inverters.
What is the thermal resistance (RθJA) of OPA2992QDRQ1 in the DGK package?
The OPA2992QDRQ1 in DGK (VSSOP-8) package has a junction-to-ambient thermal resistance (RθJA) of 173.9°C/W, measured per JEDEC JESD51-7 standard. This value assumes standard 2-layer PCB with 1-in² copper pour; actual board-level performance improves with thermal vias and internal ground planes - critical for sustained 2.4 mA/channel operation in +105°C under-hood environments.
Is OPA2992QDRQ1 qualified for automotive safety-critical applications?
The OPA2992QDRQ1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ±2.5 kV and CDM ±1.5 kV ESD ratings. While not ASIL-certified as a standalone component, it is widely deployed in ASIL-B/C systems (e.g., OBC, TCU) where system-level fault handling and redundancy ensure functional safety compliance - confirmed in TI's Automotive Safety Manual for OPAx992-Q1.
OPA2992QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 32V/µs
- Gain Bandwidth Product:
- 10.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 210 µV
- Current - Supply:
- 2.4mA (x2 Channels)
- 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:
- 8-SOIC
OPA2992QDRQ1 FAQ
1.How can I place an order for OPA2992QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2992QDRQ1 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 OPA2992QDRQ1 reliable?
The price and inventory of OPA2992QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2992QDRQ1 is usually 5 days.
3.What payment methods are accepted for OPA2992QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2992QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2992QDRQ1?
OPA2992QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2992QDRQ1 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 OPA2992QDRQ1?
For technical support, including OPA2992QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2992QDRQ1 requirements.
6.How does Aetrix verify that OPA2992QDRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA2992QDRQ1 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 OPA2992QDRQ1 meets industry standards.
7.What is the process for return or replacement of OPA2992QDRQ1?
All OPA2992QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2992QDRQ1, 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 OPA2992QDRQ1 part is unused and in its original packaging.
Return procedure for OPA2992QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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