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Texas Instruments OPA4992QDRQ1
- Part No.:
- OPA4992QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA4992QDRQ1.pdf
- Description:
- AUTOMOTIVE QUAD 40-V 10.6-MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,203
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Product details
Overview
OPA4992QDRQ1 from Texas Instruments is a quad-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-designed for high-side/low-side current sensing in HEV/EV DC/DC converters and traction inverters.
For engineers reviewing the OPA4992QDRQ1 datasheet, OPA4992QDRQ1 pinout, OPA4992QDRQ1 application, or OPA4992QDRQ1 equivalent, this page delivers verified electrical specs, TSSOP-14 package details, automotive-grade thermal performance (RθJA = 120.0°C/W), and real-world selection guidance for precision high-voltage analog signal conditioning.
Technical Context
The OPA4992QDRQ1 implements a patented MUX-friendly front-end architecture enabling full 40-V differential input swing without clamping diodes-eliminating settling delays in multiplexed sensor interfaces. Its dual-input-stage design (NCH + PCH) supports rail-to-rail common-mode range from V– to V+, including operation at supply rails.
It features unity-gain stability with 64° phase margin into 20 pF loads, robust EMIRR (>100 dB at 100 MHz), and operates across ±1.35 V to ±20 V or 2.7 V to 40 V supplies-enabling direct integration into 12 V, 24 V, and 48 V automotive power domains without level-shifting.
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 12 V/24 V/48 V automotive rails and split-supply legacy systems. |
| Input Offset Voltage | ±0.21 mV (typ), ±1.2 mV (max over –40°C to +125°C): Enables <1% error in 100 mΩ shunt-based current sensing at 10 A. |
| Offset Drift | ±0.25 µV/°C (typ): Contributes <0.03 mV drift over full automotive temperature range-critical for stable eCall and TCU biasing. |
| Gain-Bandwidth Product | 10.6 MHz: Supports closed-loop bandwidth >1 MHz at G = 10 for fast-response motor control feedback paths. |
| Slew Rate | 32 V/µs: Sustains 10 V step response in ≤0.3 µs (0.1% settling), essential for transient detection in traction inverter protection circuits. |
| Common-Mode Rejection | 115 dB (min at 40 V): Rejects >300 kV/V of supply noise-key for accurate sensing in noisy high-power EV subsystems. |
| Quiescent Current | 2.4 mA per amplifier (typ): Total 9.6 mA for quad channel-meets low-power requirements in always-on telematics modules. |
Pinout & Package
TSSOP-14 package (PW), 5.0 mm × 6.4 mm body, 0.65 mm pitch, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT1, OUT2, OUT3, OUT4 | Amplifier outputs; rail-to-rail swing enables direct interface to SAR ADCs or comparator inputs without level shift. |
| 2, 6, 9, 13 | IN1–, IN2–, IN3–, IN4– | Inverting inputs; tolerate differential voltage up to 40 V-safe for direct connection to shunt resistors in high-side sensing. |
| 3, 5, 10, 12 | IN1+, IN2+, IN3+, IN4+ | Noninverting inputs; support common-mode range from V– to V+, enabling ground-referenced or high-side referenced configurations. |
| 4 | V+ | Positive supply rail; accepts up to 40 V-directly powers from battery or post-DC/DC converter bus. |
| 11 | V– | Negative supply rail; supports true dual-supply operation or single-supply ground reference (0 V). |
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 | Input CM range extends to both supply rails; output swings within 7 mV of rails at no load-maximizes dynamic range in 3.3 V ADC interfaces. |
| AEC-Q100 Grade 1 | Qualified from –40°C to +125°C ambient; HBM ESD 2.5 kV, CDM 1.5 kV-meets functional safety requirements for ASIL-B systems. |
| High short-circuit current | ±65 mA output drive-supports driving 2 kΩ loads while maintaining rail-to-rail swing, critical for active filter stages in OBC feedback loops. |
| Low broadband noise | 4.4 nV/√Hz at 10 kHz-enables high-resolution current measurement in wireless charging receivers with minimal SNR degradation. |
Applications
| Automotive High-Side Current Sensing | EV On-Board Charger (OBC) Feedback |
|---|---|
Use Scenario: Monitoring motor phase current in traction inverter using 5 mΩ shunt resistor on high-side switch leg. IC Role / Device Role / Timing Role: Precision difference amplifier with gain = 100, rejecting common-mode voltage up to 400 V (with external resistors), feeding isolated sigma-delta ADC. Use Value: ±0.21 mV offset ensures <0.5% full-scale error at 200 A; 115 dB CMRR suppresses PWM switching noise coupling into sense path. |
Use Scenario: Closed-loop voltage regulation of 400 V DC bus in bidirectional OBC using shunt-based current feedback. IC Role / Device Role / Timing Role: Quad op amp configured as two independent current-sense amps (channels 1&2) and two error amplifiers (channels 3&4) for dual-phase control. Use Value: 10.6 MHz GBW enables >500 kHz loop bandwidth; 32 V/µs slew rate ensures fast transient recovery during load steps. |
| Telematics Control Unit (TCU) Sensor Interface | Emergency Call (eCall) Audio Preconditioning |
Use Scenario: Conditioning signals from multiple vehicle sensors (coolant temp, brake pressure, yaw rate) before multiplexing into MCU ADC. IC Role / Device Role / Timing Role: Quad buffer/level-shifter with rail-to-rail I/O, operating from 5 V supply, sharing single reference voltage. Use Value: MUX-friendly inputs prevent cross-talk during channel switching; ±10 pA bias current avoids loading high-impedance thermistor networks. |
Use Scenario: Amplifying and filtering microphone signal in always-on eCall module with ultra-low quiescent power budget. IC Role / Device Role / Timing Role: Low-noise preamp (channel 1) + active bandpass filter (channel 2) + reference buffer (channel 3) + comparator (channel 4 used open-loop). Use Value: 7 nV/√Hz input noise preserves speech SNR; 2.4 mA per amp enables full quad operation at <10 mA total-within 15 mA system limit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision high-voltage op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902QDRQ1 | Lower GBW (1.2 MHz), higher offset (±3 mV), no rail-to-rail input, 0.5 mA per amp. | Acceptable for DC-biased sensor buffering where speed and precision are secondary. | Choose when cost sensitivity outweighs AC performance and offset requirements. |
| TSV914IQDT | Higher offset drift (±2.5 µV/°C), lower supply max (24 V), no AEC-Q100 qualification. | Limited to non-safety-critical cabin electronics; not suitable for powertrain or charging systems. | Consider only for infotainment subsystems with relaxed temp range and no functional safety mandate. |
Compared with LM2902QDRQ1 and TSV914IQDT, the OPA4992QDRQ1 delivers 9× higher bandwidth, 14× lower offset, and full AEC-Q100 Grade 1 compliance-making it the sole choice for ASIL-B current sensing and high-fidelity OBC feedback loops where parametric stability across temperature and voltage is non-negotiable.
Availability
OPA4992QDRQ1 is available at Aetrix Electronics and suitable for automotive head units, traction inverters, and HEV/EV on-board chargers requiring stable component supply across extended product lifecycles and rigorous qualification traceability.
Supply support for OPA4992QDRQ1 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 deep expertise in automotive-grade signal chain and power management ICs.
The OPAx992-Q1 family was engineered specifically for high-voltage, high-precision automotive analog signal conditioning-including current sensing, battery monitoring, and power supply feedback-where DC accuracy, noise immunity, and AEC-Q100 reliability are mandatory.
FAQ
What is the maximum supply voltage rating for OPA4992QDRQ1?
The OPA4992QDRQ1 supports an absolute maximum supply voltage of 42 V (V+ – V–), with recommended operation up to 40 V. This allows direct connection to 24 V and 48 V automotive battery rails and post-regulation high-voltage buses in traction inverters and OBCs-without external voltage dividers or regulators.
Does OPA4992QDRQ1 support true rail-to-rail input operation?
Yes, the OPA4992QDRQ1 supports rail-to-rail input common-mode range from V– to V+, including operation at the supply rails themselves. Its patented input architecture eliminates clamping diodes, enabling full 40 V differential input swing-critical for high-side shunt sensing and multiplexed sensor interfaces where input transients exceed supply rails.
What is the thermal resistance (RθJA) of OPA4992QDRQ1 in its TSSOP-14 package?
The OPA4992QDRQ1 in the PW (TSSOP-14) package has a junction-to-ambient thermal resistance (RθJA) of 120.0°C/W, measured per JEDEC JESD51-7 standard on a 2-layer board with 1-in² copper. This value enables reliable operation at full 125°C ambient when dissipating up to ~330 mW per package-sufficient for four channels at 2.4 mA each with moderate output loading.
Can OPA4992QDRQ1 be used as a comparator?
Yes, the OPA4992QDRQ1 is explicitly designed for open-loop comparator use due to its MUX-friendly inputs, rail-to-rail output, and absence of internal phase-compensation that would limit speed. Its 32 V/µs slew rate and 170 ns overload recovery time make it suitable for fast overcurrent detection in traction inverters-though external hysteresis is recommended for noise immunity.
Is OPA4992QDRQ1 qualified for automotive safety applications?
Yes, the OPA4992QDRQ1 is AEC-Q100 qualified for Grade 1 (–40°C to +125°C ambient), with HBM ESD rating of ±2500 V and CDM rating of ±1500 V. It meets requirements for ASIL-B systems per ISO 26262 when used in current sensing, feedback control, and sensor signal conditioning functions-supported by TI's automotive process flow, failure mode analysis, and long-term reliability data.
OPA4992QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 4
- 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:
- 2.4mA (x4 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:
- 14-SOIC
OPA4992QDRQ1 FAQ
1.How can I place an order for OPA4992QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4992QDRQ1 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 OPA4992QDRQ1 reliable?
The price and inventory of OPA4992QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4992QDRQ1 is usually 5 days.
3.What payment methods are accepted for OPA4992QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4992QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4992QDRQ1?
OPA4992QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4992QDRQ1 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 OPA4992QDRQ1?
For technical support, including OPA4992QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4992QDRQ1 requirements.
6.How does Aetrix verify that OPA4992QDRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA4992QDRQ1 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 OPA4992QDRQ1 meets industry standards.
7.What is the process for return or replacement of OPA4992QDRQ1?
All OPA4992QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA4992QDRQ1, 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 OPA4992QDRQ1 part is unused and in its original packaging.
Return procedure for OPA4992QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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