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Texas Instruments OPA4992QPWRQ1
- Part No.:
- OPA4992QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4992QPWRQ1.pdf
- Description:
- AUTOMOTIVE, QUAD, 40-V, 10.6-MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:2,571
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Product details
Overview
OPA4992QPWRQ1 from Texas Instruments is a quad-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 OPA4992QPWRQ1 datasheet, OPA4992QPWRQ1 pinout, OPA4992QPWRQ1 application, or OPA4992QPWRQ1 equivalent, this page delivers verified electrical specs, TSSOP-14 package layout, automotive-grade thermal performance (RθJA = 120.0°C/W), and validated alternatives for high-voltage precision signal conditioning.
Technical Context
The OPA4992QPWRQ1 integrates dual PMOS/NMOS input pairs enabling full rail-to-rail common-mode operation from V– to V+, with MUX-friendly differential input tolerance up to 40 V. Its patented input protection eliminates clamping diodes, avoiding transient-induced settling delays in multiplexed sensor interfaces.
It features unity-gain stability, 115 dB CMRR at 40 V supply, and robust EMIRR performance above 70 dB up to 1 GHz - critical for noisy automotive powertrain environments where DC/DC converter ripple and inverter switching noise must be rejected without phase reversal.
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 connection to 12 V/24 V/48 V automotive battery rails without external regulators |
| Input Offset Voltage | ±0.21 mV typical - enables sub-1% error in 100 mΩ shunt-based current sensing at 10 A full scale |
| Offset Drift | ±0.25 µV/°C - ensures <1 µV total drift over –40°C to +125°C, critical for stable eCall and TCU analog front-ends |
| Gain-Bandwidth Product | 10.6 MHz - allows closed-loop bandwidth >1 MHz at G = 10 for fast-response motor control loop compensation |
| Slew Rate | 32 V/µs - sustains clean 10 V step response in <0.65 µs (0.1%), essential for high-speed OBC voltage regulation |
| Quiescent Current | 2.4 mA per amplifier - totals 9.6 mA for quad channel, enabling low-power always-on telematics monitoring |
| Common-Mode Rejection | 115 dB at 40 V - rejects >3 MV/V of common-mode noise from traction inverter gate drivers |
Pinout & Package
Packaged in 14-pin TSSOP (PW), 5 mm × 6.4 mm body size, with exposed pad for thermal enhancement in high-power automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1+, IN1− | Noninverting/inverting input, channel 1 | Differential pair accepting rail-to-rail inputs; supports comparator mode with no external hysteresis needed |
| OUT1 | Output, channel 1 | Rail-to-rail swing with 48 mV headroom at 10 kΩ load - drives ADC reference buffers directly |
| V+ | Positive supply | Highest potential rail; accepts up to 40 V - connects to HV bus or isolated DC/DC output |
| V− | Negative supply | Lowest potential rail; may be ground or negative bias - enables single- or dual-supply operation |
| IN2+ to IN4−, OUT2 to OUT4 | Inputs/outputs for channels 2–4 | Identical per-channel architecture - enables simultaneous multi-sensor conditioning (e.g., 3-phase current + temperature) |
Key Features
| Feature | Design Value |
|---|---|
| MUX-friendly inputs | Full 40 V differential input range without clamping diodes - eliminates settling delay in multiplexed battery cell monitoring |
| Rail-to-rail I/O | Input common-mode extends to both supply rails; output swings within 48 mV of rails at 10 kΩ - maximizes dynamic range in 3.3 V ADC systems |
| AEC-Q100 Grade 1 | Qualified from –40°C to +125°C ambient; HBM ESD 2.5 kV, CDM 1.5 kV - meets automotive module-level reliability requirements |
| High short-circuit current | ±65 mA output drive - sustains fault conditions in high-side current sense amplifiers without latch-up |
| Low broadband noise | 4.4 nV/√Hz at 10 kHz - preserves SNR in HEV/EV DC/DC converter voltage feedback paths |
Applications
| Automotive Head Unit | Telematics Control Unit (TCU) |
|---|---|
Use Scenario: Analog audio signal routing and level-shifting between infotainment SoC and Class D amplifier inputs. IC Role / Device Role / Timing Role: Quad op amp configured as two differential receivers and two active filters for noise-immune line-level signal conditioning. Use Value: Rail-to-rail input captures full 2 VPP audio swing; 7 nV/√Hz noise floor prevents audible hiss in premium audio systems. |
Use Scenario: Signal conditioning for GNSS antenna LNA bias and cellular modem RF front-end monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier for LTE/5G transceiver current sensing and GPS LNA VBias regulation feedback. Use Value: ±0.25 µV/°C drift ensures stable bias over vehicle cabin temperature extremes; 115 dB CMRR rejects GSM burst interference. |
| Traction Inverter | HEV/EV On-Board Charger (OBC) |
Use Scenario: High-side and low-side current sensing in 3-phase motor drive inverters using shunt resistors. IC Role / Device Role / Timing Role: Quad-channel current sense amplifier with matched gain paths for simultaneous phase current measurement. Use Value: 32 V/µs slew rate resolves fast-switching SiC gate driver transients; ±210 µV offset enables <0.5% current measurement accuracy at 500 A peak. |
Use Scenario: Voltage and current regulation feedback in bidirectional AC/DC and DC/DC stages of 11 kW OBC modules. IC Role / Device Role / Timing Role: Error amplifier in isolated flyback and LLC controller feedback loops; also used in digital isolator input buffering. Use Value: 10.6 MHz GBW supports >500 kHz loop bandwidth for fast transient response to grid voltage sags; 40 V rating matches 800 V battery interface levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4197QPWRQ1 | Lower offset (±25 µV), lower noise (5.5 nV/√Hz), but 2 MHz GBW and 15 V/µs slew rate | Better DC precision for ultra-low-drift sensor interfaces; insufficient speed for OBC fast-loop compensation | Select when offset drift and long-term stability outweigh bandwidth needs - not suitable for traction inverter current sensing |
| LM2902QDRQ1 | Wider temp range (–40°C to +125°C), but higher offset (±3 mV), slower slew (0.3 V/µs), no rail-to-rail input | Cost-optimized general-purpose use in non-critical HVAC or lighting controls | Acceptable only for low-speed, low-accuracy functions like cabin temperature averaging - cannot replace OPA4992QPWRQ1 in safety-critical power stages |
Compared with OPA4197QPWRQ1 and LM2902QDRQ1, the OPA4992QPWRQ1 uniquely balances 10.6 MHz bandwidth, rail-to-rail operation, and automotive-grade precision - making it irreplaceable in HEV/EV power conversion where both speed and DC accuracy are simultaneously required.
Availability
OPA4992QPWRQ1 is available at Aetrix Electronics and suitable for automotive head unit, traction inverter, and HEV/EV on-board charger applications requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for OPA4992QPWRQ1 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 family was designed specifically for high-voltage, high-precision signal conditioning in automotive powertrain and charging systems - emphasizing rail-to-rail operation, low drift, and robust EMI immunity under harsh electrical environments.
FAQ
What is the maximum supply voltage for OPA4992QPWRQ1?
The OPA4992QPWRQ1 supports a maximum supply voltage of 40 V across V+ and V−, with absolute maximum ratings allowing up to 42 V for short-duration transients. This enables direct integration into 24 V and 48 V automotive subsystems without external voltage scaling - confirmed in Section 5.1 Absolute Maximum Ratings of the SBOSAC9E datasheet.
Does OPA4992QPWRQ1 support rail-to-rail input and output simultaneously?
Yes, the OPA4992QPWRQ1 supports true rail-to-rail input (common-mode range from V− to V+) and rail-to-rail output (swing within 48 mV of rails at 10 kΩ load). This capability is explicitly verified in Sections 5.3 and 5.7 of the datasheet and enables full utilization of ADC input ranges in single-supply automotive systems.
Is OPA4992QPWRQ1 qualified for automotive safety-critical applications?
The OPA4992QPWRQ1 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. While not ASIL-certified as a standalone component, its qualification supports use in ASIL-B/C system designs when implemented per TI's functional safety documentation (SIL-OPAx992-Q1).
Can OPA4992QPWRQ1 be used as a comparator?
Yes - the OPA4992QPWRQ1 is explicitly designed for open-loop comparator operation due to MUX-friendly inputs that tolerate differential voltages up to 40 V and lack internal clamping diodes. Its 32 V/µs slew rate and absence of phase reversal (Figure 5-34) make it suitable for fast overvoltage detection in OBC and inverter protection circuits.
What is the thermal resistance of OPA4992QPWRQ1 in TSSOP-14 package?
In the PW (TSSOP-14) package, the OPA4992QPWRQ1 has a junction-to-ambient thermal resistance (RθJA) of 120.0°C/W, junction-to-case (top) of 50.4°C/W, and junction-to-board of 63.1°C/W - values specified in Section 5.6 Thermal Information for Quad Channel of the SBOSAC9E datasheet and validated under JEDEC JESD51-2A conditions.
OPA4992QPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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-TSSOP
OPA4992QPWRQ1 FAQ
1.How can I place an order for OPA4992QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4992QPWRQ1 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 OPA4992QPWRQ1 reliable?
The price and inventory of OPA4992QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4992QPWRQ1 is usually 5 days.
3.What payment methods are accepted for OPA4992QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4992QPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4992QPWRQ1?
OPA4992QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4992QPWRQ1 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 OPA4992QPWRQ1?
For technical support, including OPA4992QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4992QPWRQ1 requirements.
6.How does Aetrix verify that OPA4992QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA4992QPWRQ1 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 OPA4992QPWRQ1 meets industry standards.
7.What is the process for return or replacement of OPA4992QPWRQ1?
All OPA4992QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA4992QPWRQ1, 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 OPA4992QPWRQ1 part is unused and in its original packaging.
Return procedure for OPA4992QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA4992QPWRQ1 Tags
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