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Texas Instruments LMV324AQDRQ1
- Part No.:
- LMV324AQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV324AQDRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,737
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Product details
Overview
LMV324AQDRQ1 from Texas Instruments is a quad-channel, automotive-grade operational amplifier with rail-to-rail output, AEC-Q100 Grade 1 qualification (–40°C to +125°C), ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, and 70 µA per channel quiescent current. It operates from 2.5 V to 5.5 V single supply and serves as a precision signal-conditioning amplifier in low-voltage automotive sensor interfaces and current-sensing circuits.
For engineers reviewing the LMV324AQDRQ1 datasheet, LMV324AQDRQ1 pinout, LMV324AQDRQ1 application, or LMV324AQDRQ1 equivalent, key selection criteria include its rail-to-rail output swing (20 mV from rails at 10 kΩ), resistive open-loop output impedance (1.2 kΩ at 1 MHz), EMI/RFI filtering, and guaranteed operation across extended temperature and low-supply conditions without phase reversal.
Technical Context
The LMV324AQDRQ1 implements a P-channel/N-channel complementary input stage enabling rail-to-rail input common-mode range (V– – 0.1 V to V+ – 1 V) and eliminating phase reversal under overdrive. Its class-AB output stage delivers full rail-to-rail swing with 20 mV headroom into 10 kΩ loads and supports stable operation with ≥500 pF capacitive loads due to resistive open-loop output impedance.
It features integrated EMI/RFI rejection filtering, unity-gain stability, and AEC-Q100-compliant robustness including HBM ESD Level 2 (±2 kV) and CDM Level C6 (±1 kV). Electrical performance-including 30 nV/√Hz noise, 10 pA input bias current, and 86–95 dB CMRR-is specified across –40°C to +125°C at supply voltages from 2.5 V to 5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V single supply - enables direct integration into 3.3 V and 5 V automotive domains without level-shifting. |
| Input Offset Voltage | ±1 mV (typ) - ensures ≤100 µV error in 100 mV shunt-based current sensing at room temperature. |
| Unity-Gain Bandwidth | 1 MHz - supports closed-loop gain configurations up to ~100 kHz with adequate phase margin for sensor signal conditioning. |
| Quiescent Current | 70 µA per channel - allows four independent amplifiers to operate continuously in always-on vehicle modules with <300 µA total IQ. |
| Output Swing | Within 20 mV of rails (at 10 kΩ) - maximizes dynamic range when driving SAR ADCs with 0–5 V input ranges. |
| Open-Loop Output Impedance | 1.2 kΩ (at 1 MHz) - enables stable operation with high capacitive loads (≥500 pF), simplifying anti-alias filter design. |
| CMRR | 86–95 dB (over temp/voltage) - rejects common-mode noise from shared ground paths in body electronics subsystems. |
Pinout & Package
LMV324AQDRQ1 is packaged in a 14-pin SOIC (D package) with 8.65 mm × 3.91 mm body size and standard pin pitch. This RoHS-compliant, surface-mount package supports automated assembly and meets automotive thermal requirements (RθJA = 115.1°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; rail-to-rail capable with 40 mA short-circuit rating. |
| 2 | –IN A | Inverting input, channel A - accepts feedback network or inverted signal path in transimpedance or difference configurations. |
| 3 | +IN A | Non-inverting input, channel A - connects to reference, sensor, or high-impedance source; supports common-mode down to V– – 0.1 V. |
| 4 | V+ | Positive supply - accepts 2.5–5.5 V DC; decoupling capacitor required within 10 mm for EMI suppression. |
| 5 | +IN B | Non-inverting input, channel B - electrically isolated from channel A; enables dual-sensor monitoring on single IC. |
| 6 | –IN B | Inverting input, channel B - used for differential pair or independent gain stage; no crosstalk with channel A (–120 dB @ 1 kHz). |
| 7 | OUT B | Amplifier B output - independently buffered output; same drive strength and rail-to-rail behavior as OUT A. |
| 8 | V– | Negative supply / ground - return path for all four amplifiers; must be low-impedance to minimize PSRR degradation. |
| 9 | –IN C | Inverting input, channel C - supports third independent signal path; validated for continuous operation at 125°C ambient. |
| 10 | +IN C | Non-inverting input, channel C - shares same input stage architecture as channels A/B; maintains 10 pA bias current across temperature. |
| 11 | V– | Negative supply / ground - redundant connection for improved grounding; ties directly to pin 8 internally in SOIC package. |
| 12 | +IN D | Non-inverting input, channel D - enables fourth analog channel without additional die area; identical AC/DC specs to other inputs. |
| 13 | –IN D | Inverting input, channel D - supports independent feedback loop; immune to overvoltage up to V+ + 0.5 V (diode-clamped). |
| 14 | OUT D | Amplifier D output - fully characterized for settling time (4 µs to 0.01%), overload recovery (0.9 µs), and THD+N (0.005% @ 1 kHz). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 20 mV of supply rails into 10 kΩ, preserving >99% of ADC input range in 5 V systems. |
| Resistive open-loop output impedance | 1.2 kΩ at 1 MHz enables stable closed-loop operation with ≥500 pF capacitive loads-no external isolation resistor needed. |
| No phase reversal under overdrive | Complementary P/N input stage eliminates output polarity inversion during input overvoltage, critical for safety-critical ADAS feedback loops. |
| Integrated RFI/EMI filter | Rejects >60 dB of 100 MHz–1 GHz interference at non-inverting input, reducing need for external ferrite beads in infotainment PCBs. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C operation with HBM ±2 kV and CDM ±1 kV ESD ratings-meets automotive module-level reliability requirements. |
Applications
| Infotainment Audio Preamp | Body Control Module Current Sensing |
|---|---|
Use Scenario: Amplifying low-level microphone or line-in signals in automotive head units with 3.3 V supply. IC Role / Device Role / Timing Role: Quad-channel op amp providing gain, DC blocking, and rail-to-rail buffering before ADC sampling. Use Value: 30 nV/√Hz input noise and 1 MHz bandwidth preserve audio fidelity; 70 µA/channel IQ extends battery runtime in accessory mode. | Use Scenario: Monitoring LED driver or window motor current in BCM using shunt resistor and single-supply configuration. IC Role / Device Role / Timing Role: Four independent low-side current sense amplifiers, each configured as non-inverting gain stage (G = 50). Use Value: ±1 mV VOS ensures <±50 µA measurement error at 1 A load; rail-to-rail output interfaces directly with 12-bit MCU ADC. |
| ADAS Camera Power Monitor | EV On-Board Charger Sensor Interface |
Use Scenario: Real-time monitoring of camera module power rail health via voltage divider and precision scaling. IC Role / Device Role / Timing Role: Precision buffer and level-shifter converting 12 V rail sense to 0–5 V for MCU ADC input. Use Value: 86–95 dB CMRR rejects switching noise from nearby DC/DC converters; 125°C rating supports under-hood placement. | Use Scenario: Conditioning signals from temperature, voltage, and current sensors in OBC control board operating at 85°C ambient. IC Role / Device Role / Timing Role: Signal conditioner for NTC thermistors, shunt-based current sensors, and isolated voltage dividers. Use Value: Four matched channels reduce BOM count; 10 pA IB prevents thermistor self-heating errors; EMI filtering suppresses SMPS coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel, rail-to-rail output op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324QDRQ1 | Legacy version without AEC-Q100 Grade 1 certification; ±2 mV VOS (vs ±1 mV), higher 100 µA/ch IQ. | Not qualified for safety-critical or high-reliability automotive modules requiring full AEC-Q100 compliance. | Select only for cost-sensitive, non-safety automotive sub-systems where extended temperature validation is not required. |
| TSV914IQDT | STMicroelectronics quad op amp; 8 MHz GBW, 1.9 V to 5.5 V supply, but only AEC-Q100 Grade 2 (–40°C to +105°C). | Limited to cabin applications; lacks 125°C operation and lower noise (42 nV/√Hz vs 30 nV/√Hz) for precision sensing. | Consider for infotainment front-end where bandwidth >1 MHz is needed, but verify thermal derating above 105°C. |
Compared with LMV324QDRQ1 and TSV914IQDT, LMV324AQDRQ1 provides tighter offset, lower power, full Grade 1 temperature support, and superior EMI rejection-making it the preferred choice for ADAS, powertrain, and under-hood sensor signal chains where accuracy and robustness are mandatory.
Availability
LMV324AQDRQ1 is available at Aetrix Electronics and suitable for infotainment audio preamplification, body control module current sensing, ADAS camera power monitoring, and EV on-board charger sensor interface applications requiring stable component supply across automotive production lifecycles.
Supply support for LMV324AQDRQ1 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 LMV324AQDRQ1 belongs to TI's automotive-qualified low-voltage op amp product line, engineered specifically for space-constrained, low-power sensor signal conditioning in AEC-Q100 Grade 1 environments.
FAQ
What is the maximum capacitive load the LMV324AQDRQ1 can drive while remaining stable?
The LMV324AQDRQ1 is characterized for stable operation with ≥500 pF capacitive loads due to its resistive open-loop output impedance. Typical overshoot remains below 15% and phase margin exceeds 60° at 1000 pF, enabling direct connection to anti-alias filters or long PCB traces without external isolation resistors. This behavior is verified across –40°C to +125°C and 2.5 V to 5.5 V supply range in the official LMV324AQDRQ1 datasheet.
Does the LMV324AQDRQ1 support true rail-to-rail input operation?
The LMV324AQDRQ1 supports rail-to-rail output swing but has a limited rail-to-rail input common-mode range: it extends 100 mV beyond the negative rail (V– – 0.1 V) and stops 1 V below the positive rail (V+ – 1 V) across its full 2.5 V to 5.5 V supply range. This is achieved via a P-channel input pair, with an auxiliary N-channel pair preventing phase reversal-though the latter is not optimized for linear operation.
Is the LMV324AQDRQ1 pin-compatible with the standard LMV324 series?
Yes, the LMV324AQDRQ1 uses the same 14-pin SOIC (D) package footprint and identical pinout as the commercial LMV324 and automotive LMV324QDRQ1 variants. All signal, power, and ground connections match exactly-enabling drop-in replacement in existing designs when upgrading to AEC-Q100 Grade 1 qualification and tighter parametric specifications.
What is the overload recovery time specification for the LMV324AQDRQ1?
The LMV324AQDRQ1 has a typical overload recovery time of 0.9 µs, defined as the time required for the output to return from saturation to linear operation after overdrive. This value is measured under VS = 5 V, G = –10, VIN = 600 mVpp conditions and is consistent across all four channels. Fast recovery minimizes signal distortion in transient-heavy automotive environments like motor startup or load dump events.
How does the EMI/RFI filtering in the LMV324AQDRQ1 improve system-level robustness?
The LMV324AQDRQ1 integrates on-die RFI and EMI rejection filtering at the non-inverting input, achieving >60 dB attenuation from 100 MHz to 1 GHz. This reduces susceptibility to radiated emissions from nearby RF sources (e.g., cellular modems, Bluetooth modules) and conducted noise from switching power supplies-lowering PCB-level filtering requirements and improving pass rates in CISPR 25 Class 5 testing for automotive ECUs.
LMV324AQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 70µA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMV324AQDRQ1 FAQ
1.How can I place an order for LMV324AQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324AQDRQ1 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 LMV324AQDRQ1 reliable?
The price and inventory of LMV324AQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324AQDRQ1 is usually 5 days.
3.What payment methods are accepted for LMV324AQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324AQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324AQDRQ1?
LMV324AQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324AQDRQ1 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 LMV324AQDRQ1?
For technical support, including LMV324AQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324AQDRQ1 requirements.
6.How does Aetrix verify that LMV324AQDRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV324AQDRQ1 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 LMV324AQDRQ1 meets industry standards.
7.What is the process for return or replacement of LMV324AQDRQ1?
All LMV324AQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV324AQDRQ1, 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 LMV324AQDRQ1 part is unused and in its original packaging.
Return procedure for LMV324AQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324AQDRQ1 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
Texas Instruments
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