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Texas Instruments OPA2992QDGKRQ1
- Part No.:
- OPA2992QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2992QDGKRQ1.pdf
- Description:
- AUTOMOTIVE, DUAL, 40-V, 10-MHZ R
- Quantity:
- Payment:
- Shipping:
Inventory:2,308
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Product details
Overview
OPA2992QDGKRQ1 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 product, 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 OPA2992QDGKRQ1 datasheet, OPA2992QDGKRQ1 pinout, OPA2992QDGKRQ1 application, or OPA2992QDGKRQ1 equivalent, this page delivers verified electrical specs, dual-channel VSSOP-8 pin mapping, automotive-grade thermal and ESD performance data, and validated alternatives for high-voltage precision signal conditioning.
Technical Context
The OPA2992QDGKRQ1 implements a patented MUX-friendly front-end architecture enabling full 40-V differential input swing without clamping diodes - eliminating transient-induced settling delays in multichannel switched-sensor systems. Its dual PMOS/NMOS input stage supports common-mode voltage from V– to V+, enabling operation at supply rails.
It integrates a high-slew-rate output stage delivering ±65 mA short-circuit current and 7 nV/√Hz input voltage noise at 1 kHz, while maintaining 115 dB CMRR and 2.4 mA per amplifier quiescent current across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V (±1.35 V to ±20 V) - supports direct integration into 12 V, 24 V, and 48 V automotive battery domains without level-shifting. |
| Input Offset Voltage | ±0.21 mV typical - enables sub-0.1% error in 100 mΩ shunt-based current sensing at 10 A full scale. |
| Offset Drift | ±0.25 µV/°C - ensures <±1.5 µV total drift over –40°C to +125°C, critical for stable closed-loop control in traction inverters. |
| Gain-Bandwidth Product | 10.6 MHz - allows stable unity-gain configuration with >64° phase margin and <0.65 µs 0.1% settling for fast transient response. |
| Common-Mode Rejection | 115 dB at VS = 40 V - rejects >3 mV of common-mode noise on 40 V bus, preserving accuracy in noisy high-power environments. |
| Output Drive | ±65 mA short-circuit current - sustains robust output under fault conditions and drives ≥2 kΩ loads with <300 mV headroom at 40 V supply. |
| EMI Rejection Ratio | ≥80 dB up to 1 GHz - mitigates RF interference from motor drives and wireless charging fields without external filtering. |
Pinout & Package
DGK package: 8-pin VSSOP (3 mm × 4.9 mm), thermally enhanced for automotive under-hood mounting; RoHS-compliant, moisture sensitivity level 2a.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1+ | Noninverting input, channel 1 | Accepts signals from V– to V+ - enables direct connection to shunt resistor high-side node without attenuation. |
| IN1– | Inverting input, channel 1 | Supports differential measurement with rail-to-rail common-mode range - essential for bidirectional current sensing. |
| OUT1 | Output, channel 1 | Rail-to-rail swing with <60 mV headroom at 10 kΩ load - interfaces directly with SAR ADC reference buffers or comparator inputs. |
| V– | Negative (lowest) power supply | Reference for both channels; must be connected to system ground or negative rail - no internal biasing. |
| IN2+ | Noninverting input, channel 2 | Independent high-impedance input for secondary sensing path (e.g., DC-link voltage monitoring). |
| IN2– | Inverting input, channel 2 | Configurable as inverting amplifier or comparator input - supports open-loop use in eCall alert triggering circuits. |
| OUT2 | Output, channel 2 | Unity-gain stable; drives capacitive loads up to 200 pF - suitable for filtering before analog-to-digital conversion. |
| V+ | Positive (highest) power supply | Accepts up to 40 V - powers both amplifiers from same rail as main inverter gate driver supply. |
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. |
| Rail-to-rail I/O | Operates with input common-mode and output swing spanning V– to V+ - enables single-supply designs in 12 V automotive systems. |
| AEC-Q100 Grade 1 | Qualified from –40°C to +125°C ambient - meets thermal requirements for placement near traction inverter modules. |
| Low 1/f noise | 2.77 µVPP integrated 0.1 Hz to 10 Hz - preserves signal integrity in low-frequency motor control feedback loops. |
| High EMIRR | ≥80 dB rejection up to 1 GHz - suppresses coupling from 6.78 MHz wireless charging fields and PWM switching noise. |
Applications
| High-Side Current Sensing | Traction Inverter Feedback |
|---|---|
Use Scenario: Monitoring phase current in 400 V EV traction inverter using 100 µΩ shunt resistor. IC Role / Device Role / Timing Role: Dual-channel precision op amp performing bidirectional current amplification and offset compensation. Use Value: ±0.21 mV offset and 115 dB CMRR enable ≤0.2% full-scale error across temperature, meeting ASIL-B functional safety targets. |
Use Scenario: Closed-loop control of IGBT gate drive timing via sensed collector-emitter voltage. IC Role / Device Role / Timing Role: High-speed buffer and level translator for fast overvoltage detection signal path. Use Value: 32 V/µs slew rate and 0.65 µs 0.1% settling ensure <100 ns fault response time, supporting ISO 26262 ASIL-C timing constraints. |
| eCall Emergency Trigger | OBC DC/DC Converter Monitoring |
Use Scenario: Detecting vehicle crash signature via accelerometer analog output and triggering GSM module activation. IC Role / Device Role / Timing Role: Comparator-mode amplifier detecting threshold-crossing events with hysteresis. Use Value: Rail-to-rail input and open-loop stability allow direct interface to MEMS sensor outputs without external biasing. |
Use Scenario: Regulating 400 V to 12 V DC/DC converter output voltage in onboard charger systems. IC Role / Device Role / Timing Role: Error amplifier in isolated feedback loop, compensating optocoupler latency. Use Value: 10.6 MHz GBW and 64° phase margin ensure stable regulation at 100 kHz switching frequency with minimal phase lag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-voltage, automotive op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQDRQ1 | Lower bandwidth (1.2 MHz), higher offset (±3 mV), no rail-to-rail output - requires external level-shifting for 40 V bus sensing. | Suitable only for non-critical 12 V subsystems (e.g., HVAC fan control); not qualified for traction or safety-critical paths. | Select when cost is primary constraint and performance requirements are relaxed below ASIL-B thresholds. |
| TSV912IQDRQ1 | Higher offset drift (±3.5 µV/°C), lower supply max (24 V), no AEC-Q100 Grade 1 rating - limited to cabin electronics. | Applicable in infotainment audio preamps but fails thermal validation for under-hood deployment. | Choose only for low-power, low-noise cabin applications where 40 V operation and extended temperature range are unnecessary. |
Compared with LM2904BQDRQ1 and TSV912IQDRQ1, the OPA2992QDGKRQ1 delivers 8.8× higher bandwidth, 14× lower offset, and full 40 V rail-to-rail operation - making it the sole option qualified for ASIL-B current sensing in HEV/EV power stages.
Availability
OPA2992QDGKRQ1 is available at Aetrix Electronics and suitable for high-side current sensing, traction inverter feedback, eCall emergency trigger, and OBC DC/DC converter monitoring requiring stable component supply across automotive production lifecycles.
Supply support for OPA2992QDGKRQ1 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 deep expertise in automotive-grade signal chain solutions.
The OPAx992-Q1 family was designed specifically for high-voltage, precision signal conditioning in ASIL-B automotive power systems - targeting current sensing, motor control, and battery management where DC accuracy and AC speed are jointly critical.
FAQ
What is the maximum supply voltage for OPA2992QDGKRQ1?
The OPA2992QDGKRQ1 supports a maximum supply voltage of 40 V (V+ to V–), with absolute maximum ratings extending to 42 V. This enables direct operation from 24 V and 48 V automotive battery rails without external regulators or voltage dividers - a key requirement for traction inverter auxiliary supplies and OBC DC/DC monitoring circuits.
Does OPA2992QDGKRQ1 support rail-to-rail input and output simultaneously?
Yes, the OPA2992QDGKRQ1 supports rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing (within 7 mV of rails at no load). This dual rail-to-rail capability allows single-supply operation in 12 V automotive systems and eliminates the need for external bias networks in high-side shunt amplifier configurations.
Is OPA2992QDGKRQ1 qualified for automotive safety applications?
Yes, the OPA2992QDGKRQ1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2500 V and CDM rating of ±1500 V. It meets functional safety requirements for ASIL-B systems when used in current sensing and feedback paths - supported by TI's automotive process flow, failure-in-time (FIT) data, and diagnostic coverage documentation.
Can OPA2992QDGKRQ1 be used as a comparator?
Yes, the OPA2992QDGKRQ1 is explicitly designed for open-loop comparator operation due to its MUX-friendly inputs, rail-to-rail common-mode range, and absence of internal clamping diodes. It tolerates up to 40 V differential input voltage and provides fast overload recovery (<170 ns), making it suitable for eCall crash detection and overvoltage protection triggers.
What is the thermal resistance (RθJA) of OPA2992QDGKRQ1 in DGK package?
The OPA2992QDGKRQ1 in DGK (VSSOP-8) package has a junction-to-ambient thermal resistance (RθJA) of 173.9°C/W, as specified in the datasheet. This value assumes standard JEDEC 2-layer board conditions and confirms suitability for surface-mount placement on thermally constrained PCB areas near power modules in automotive ECUs.
OPA2992QDGKRQ1 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:
- 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:
- 10 pA
- 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-VSSOP
OPA2992QDGKRQ1 FAQ
1.How can I place an order for OPA2992QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2992QDGKRQ1 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 OPA2992QDGKRQ1 reliable?
The price and inventory of OPA2992QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2992QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for OPA2992QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2992QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2992QDGKRQ1?
OPA2992QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2992QDGKRQ1 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 OPA2992QDGKRQ1?
For technical support, including OPA2992QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2992QDGKRQ1 requirements.
6.How does Aetrix verify that OPA2992QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA2992QDGKRQ1 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 OPA2992QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of OPA2992QDGKRQ1?
All OPA2992QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2992QDGKRQ1, 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 OPA2992QDGKRQ1 part is unused and in its original packaging.
Return procedure for OPA2992QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2992QDGKRQ1 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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