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Texas Instruments LMV324IDRQ1
- Part No.:
- LMV324IDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV324IDRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,859
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Product details
Overview
LMV324IDRQ1 from Texas Instruments is a quad-channel, automotive-qualified operational amplifier with rail-to-rail output swing, 1-MHz unity-gain bandwidth, 1-V/µs slew rate, and 410 µA typical supply current at 5 V. It operates from 2.7 V to 5.5 V and features ground-sensing input common-mode range, making it suitable for low-voltage sensor signal conditioning in engine control units and body electronics.
For engineers reviewing the LMV324IDRQ1 datasheet, LMV324IDRQ1 pinout, LMV324IDRQ1 application, or LMV324IDRQ1 equivalent, key selection considerations include its AEC-Q100 Grade 1 qualification (−40°C to 125°C), SOIC-14 package, rail-to-rail output capability under light load, input offset voltage ≤9 mV over temperature, and compatibility with cost-sensitive, space-constrained automotive analog front-ends.
Technical Context
The LMV324IDRQ1 implements a CMOS-input, rail-to-rail output op-amp architecture optimized for single-supply operation. Its input stage supports common-mode voltages down to ground (−0.2 V at 5 V), enabling direct interfacing with resistive sensors and DAC outputs. The output stage delivers full swing within 10–40 mV of rails into 10-kΩ loads, preserving dynamic range in low-voltage systems.
It integrates four independent amplifiers sharing one supply pair (VCC+, GND) and exhibits no crossover distortion. Designed for automotive environments, it meets AEC-Q100 Grade 1 requirements and includes robust ESD protection (±2 kV HBM) and latch-up immunity per JESD78.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - Enables direct use with 3.3 V and 5 V automotive domains without level-shifting. |
| Unity-Gain Bandwidth | 1 MHz - Supports stable closed-loop operation up to ~100 kHz for gain ≥10, sufficient for sensor filtering and buffer applications. |
| Slew Rate | 1 V/µs - Limits large-signal settling time to <1 µs for 1-V step, adequate for slow-to-moderate speed signal conditioning. |
| Input Offset Voltage | ≤9 mV (full temp range) - Ensures ≤0.9% error in 1-V full-scale measurements without trimming. |
| Supply Current (Quad) | 410 µA typ @ 5 V - Delivers ultra-low power for always-on modules; total quiescent draw <1.7 mW at 5 V. |
| Rail-to-Rail Output | VOL = 65 mV, VOH = VCC − 100 mV @ RL = 10 kΩ - Maintains >98% output dynamic range at 5 V, critical for ADC interface fidelity. |
| Common-Mode Input Range | −0.2 V to VCC + 0.2 V - Accepts inputs at ground or slightly below, supporting single-ended transducer interfaces. |
Pinout & Package
LMV324IDRQ1 is housed in a 14-pin SOIC (D) package with standard 1.27-mm pitch, 8.65-mm × 3.91-mm footprint, and gull-wing leads. It is RoHS-compliant, green (Pb-free, Sb/Br-free), and rated MSL Level-1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN+ | Non-inverting input for each of four amplifiers - referenced to GND; accepts signals from 0 V to VCC. |
| 2, 6, 10, 14 | IN− | Inverting input for each amplifier - used for feedback or differential sensing; same common-mode range as IN+. |
| 3, 7, 11, 12 | OUT | Rail-to-rail output terminal - drives capacitive or resistive loads up to 10 kΩ while maintaining >98% swing. |
| 4 | GND | Analog ground reference - must be connected directly to system ground plane for noise immunity and offset stability. |
| 14 | VCC+ | Positive supply pin - supplies all four amplifiers; decoupling capacitor (0.1 µF) required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C), qualified for engine bay and cabin ECUs. |
| No crossover distortion | Eliminates switching artifacts in audio and precision DC-coupled paths, ensuring clean small-signal linearity. |
| Ground-sensing input | Common-mode range extends to −0.2 V, enabling direct connection to thermistors, potentiometers, and current-sense shunts tied to GND. |
| Low quiescent current | 410 µA typical for all four channels - reduces thermal load and extends battery life in always-on vehicle subsystems. |
| Stable with capacitive loads | Maintains ≥60° phase margin driving up to 100 pF, simplifying layout in noisy automotive harness environments. |
Applications
| Engine Coolant Temperature Sensing | Body Control Module Window Motor Feedback |
|---|---|
Use Scenario: Signal conditioning of NTC thermistor voltage divider in coolant circuit. IC Role / Device Role / Timing Role: Quad op-amp configured as precision buffer, gain stage, comparator reference, and fault-detection amplifier. Use Value: Rail-to-rail output preserves full 0–5 V ADC range; ground-sensing input enables direct thermistor interface without level shifters. | Use Scenario: Monitoring bidirectional motor current and position feedback in power window actuator. IC Role / Device Role / Timing Role: Current-sense amplifier and direction-detect comparator within compact BCU PCB. Use Value: Low 410 µA supply current minimizes standby drain; AEC-Q100 qualification ensures reliability across thermal cycling. |
| Infotainment System Microphone Bias | Advanced Driver Assistance Camera Power Supply Monitor |
Use Scenario: Providing stable 2.5 V bias voltage and AC-coupled amplification for MEMS microphone input. IC Role / Device Role / Timing Role: Precision voltage follower and low-noise preamplifier in audio front-end. Use Value: 39 nV/√Hz input noise at 1 kHz ensures high SNR; rail-to-rail output maximizes headroom into codec ADC. | Use Scenario: Real-time monitoring of 12 V battery-derived 5 V and 3.3 V rails feeding camera image sensor and ISP. IC Role / Device Role / Timing Role: Quad comparator and precision reference buffer for multi-rail power-good detection. Use Value: Four independent channels enable simultaneous monitoring of multiple supplies without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324DR | Industrial-grade (−40°C to 85°C), identical electrical specs but non-automotive qualified. | Not suitable for under-hood or safety-critical modules requiring AEC-Q100 compliance. | Select when automotive qualification is unnecessary and cost is primary constraint. |
| TSV914IQDT | Higher 8-MHz GBW, 15-V/µs slew rate, lower 1.1-mV max VIO, but higher 880-µA ICC and only 2.7–5.5 V operation. | Better for higher-speed signal chains (e.g., active filters), but consumes >2× more current and lacks published AEC-Q100 data. | Select when bandwidth and precision outweigh power and qualification requirements. |
Compared with LMV324DR and TSV914IQDT, LMV324IDRQ1 uniquely balances AEC-Q100 Grade 1 reliability, ultra-low 410-µA quiescent current, and proven rail-to-rail performance in production automotive ECUs-making it optimal for cost-sensitive, thermally demanding, always-on analog functions.
Availability
LMV324IDRQ1 is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and infotainment subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324IDRQ1 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, embedded processing, and automotive ICs, with decades of automotive qualification expertise and broad manufacturing scale.
The LMV3xx-Q1 product line was designed specifically for cost-sensitive, low-voltage automotive signal conditioning-delivering rail-to-rail output, ground-sensing inputs, and AEC-Q100 qualification in industry-standard packages like SOIC and TSSOP.
FAQ
What is the operating temperature range for LMV324IDRQ1?
The LMV324IDRQ1 is qualified per AEC-Q100 Grade 1, supporting continuous operation from −40°C to +125°C ambient. This rating is validated across all electrical parameters in the datasheet's "electrical characteristics at specified free-air temperature range" tables and applies to the SOIC-14 package under defined thermal conditions.
Does LMV324IDRQ1 support true rail-to-rail input?
No, LMV324IDRQ1 does not support rail-to-rail input. Its common-mode input voltage range extends from −0.2 V to VCC + 0.2 V (at 5 V), enabling ground-referenced inputs but not full rail-to-rail input swing. The device does provide rail-to-rail output swing, delivering VOL ≤ 65 mV and VOH ≥ VCC − 100 mV into 10-kΩ loads.
Can LMV324IDRQ1 drive capacitive loads reliably?
Yes, LMV324IDRQ1 maintains ≥60° phase margin when driving capacitive loads up to 100 pF, as confirmed by Figure 3 and Figure 4 in the SLOS415E datasheet. For loads >100 pF, external isolation resistance (e.g., 10–100 Ω in series with output) is recommended to preserve stability in automotive harness environments.
What is the maximum output short-circuit current for LMV324IDRQ1?
Per the datasheet's electrical characteristics table (page 5), LMV324IDRQ1 delivers a minimum sourcing short-circuit current of 5 mA and sinking short-circuit current of 10 mA at 25°C and VCC = 5 V. These values decrease with temperature; at 125°C, sinking current drops to ~30 mA (Figure 17), limiting safe continuous short-circuit duration without thermal derating.
Is LMV324IDRQ1 pin-compatible with LM324 or LM324-Q1?
No, LMV324IDRQ1 is not pin-compatible with LM324 or LM324-Q1. While both are quad op-amps in SOIC-14 packages, LMV324IDRQ1 uses a different pinout: pins 1/5/9/13 are IN+, 2/6/10/14 are IN−, 3/7/11/12 are OUT, pin 4 is GND, and pin 14 is VCC+. In contrast, LM324 places VCC+ on pin 4 and GND on pin 11. Direct substitution requires PCB redesign.
LMV324IDRQ1 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:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 1.7 mV
- Current - Supply:
- 410µA (x4 Channels)
- Current - Output / Channel:
- 160 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMV324IDRQ1 FAQ
1.How can I place an order for LMV324IDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324IDRQ1 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 LMV324IDRQ1 reliable?
The price and inventory of LMV324IDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324IDRQ1 is usually 5 days.
3.What payment methods are accepted for LMV324IDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324IDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324IDRQ1?
LMV324IDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324IDRQ1 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 LMV324IDRQ1?
For technical support, including LMV324IDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324IDRQ1 requirements.
6.How does Aetrix verify that LMV324IDRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV324IDRQ1 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 LMV324IDRQ1 meets industry standards.
7.What is the process for return or replacement of LMV324IDRQ1?
All LMV324IDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV324IDRQ1, 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 LMV324IDRQ1 part is unused and in its original packaging.
Return procedure for LMV324IDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324IDRQ1 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
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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