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Texas Instruments LMV324IDRG4Q1
- Part No.:
- LMV324IDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV324IDRG4Q1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,760
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Product details
Overview
LMV324IDRG4Q1 from Texas Instruments is a quad-channel, low-voltage (2.7 V to 5.5 V), rail-to-rail output operational amplifier qualified for automotive applications (−40°C to 125°C). It delivers 1 MHz unity-gain bandwidth, 1 V/µs slew rate, 410 µA typical supply current per amplifier (1.64 mA total), and rail-to-rail output swing into 10 kΩ load at 5 V. It serves signal conditioning in automotive body control modules, sensor interfaces, and battery monitoring circuits.
For engineers reviewing the LMV324IDRG4Q1 datasheet, LMV324IDRG4Q1 pinout, LMV324IDRG4Q1 application, or LMV324IDRG4Q1 equivalent, key selection considerations include its AEC-Q100 qualification, rail-to-rail output capability at low supply voltage, input common-mode range extending to ground, and guaranteed performance across −40°C to 125°C ambient temperature.
Technical Context
The LMV324IDRG4Q1 implements a CMOS input stage with complementary bipolar output stage, enabling rail-to-rail output swing while maintaining low input bias current (15 nA typ at 25°C) and wide common-mode input range (−0.2 V to VCC + 0.2 V). Its internal biasing supports stable operation down to 2.7 V single-supply.
It features no crossover distortion due to its Class AB output architecture and achieves 60° phase margin with 1 MHz gain-bandwidth product under standard test conditions (CL = 200 pF, RL = 100 kΩ), ensuring robust stability in unity-gain buffer and active filter configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - Enables direct interface with 3.3 V and 5 V automotive microcontrollers without level-shifting. |
| Unity-Gain Bandwidth | 1 MHz - Supports audio-frequency signal conditioning and medium-speed sensor amplification (e.g., thermistor, potentiometer). |
| Slew Rate | 1 V/µs - Limits large-signal settling time to ≤1 µs for 1 V step, suitable for DC-coupled analog front-ends. |
| Input Offset Voltage | 7 mV max (typ 1.7 mV) - Ensures ≤7 mV DC error in precision gain stages; full-range spec is 9 mV over −40°C to 125°C. |
| Output Swing (RL = 10 kΩ) | VCC − 100 mV (high), 65 mV (low) at 5 V - Delivers true rail-to-rail output usable for ADC reference buffering and comparator input drive. |
| Supply Current (Quad) | 410 µA typ / 1160 µA max - Enables ultra-low-power operation in always-on vehicle subsystems (e.g., door module wake-up sensing). |
| Common-Mode Input Range | −0.2 V to VCC + 0.2 V - Allows direct connection of grounded sensors (e.g., NTC thermistors) without external bias resistors. |
Pinout & Package
LMV324IDRG4Q1 is housed in a 14-pin SOIC (D) package with 1.27 mm pitch, 8.65 mm × 3.91 mm footprint, and JEDEC MS-012AC compliant outline. Thermal resistance θJA is 86°C/W, supporting operation up to 125°C ambient with appropriate PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 10, 13 | Inverting Input (−) | Accepts feedback or differential signal; high impedance (>10⁹ Ω) enables high-gain configurations without loading. |
| 2, 6, 9, 12 | Non-inverting Input (+) | Reference input node; common-mode range includes ground, simplifying single-supply sensor biasing. |
| 3, 8, 11, 14 | Output | Rail-to-rail capable; drives 10 kΩ loads to within 100 mV of rails at 5 V, reducing need for external level-shifting. |
| 4 | GND | Analog ground reference; must be connected directly to low-impedance system ground plane to minimize noise coupling. |
| 14 | VCC+ | Positive supply rail; accepts 2.7–5.5 V; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Rated for automotive Grade 1 (−40°C to 125°C), including stress testing per JESD22, ensuring reliability in engine bay and cabin electronics. |
| Rail-to-Rail Output | Delivers full dynamic range utilization at low supply voltages, maximizing SNR when driving 12-bit ADCs or low-voltage comparators. |
| No Crossover Distortion | Class AB output stage eliminates notch distortion in audio and precision analog paths, critical for accurate sensor signal fidelity. |
| Low Supply Current | 410 µA typical total quiescent current (102.5 µA per op-amp) enables multi-channel monitoring in power-constrained ECUs. |
| Ground-Sensing Inputs | Input common-mode range extends 0.2 V below GND, allowing direct interface with 0 V-referenced transducers without external bias networks. |
Applications
| Automotive Cabin Temperature Sensing | 12 V Battery Voltage Monitoring |
|---|---|
Use Scenario: Amplifying output of NTC thermistor mounted on HVAC control board for cabin temperature feedback. IC Role / Device Role / Timing Role: Precision DC-coupled non-inverting amplifier with gain = 2, referenced to ground. Use Value: Rail-to-rail output ensures full 0–3.3 V ADC input range utilization; ground-sensing inputs eliminate need for bias resistors, reducing BOM count and layout area. | Use Scenario: Scaling 12 V battery voltage to 0–3.3 V range for microcontroller ADC input in body control module. IC Role / Device Role / Timing Role: High-impedance voltage divider buffer with unity gain and rail-to-rail output. Use Value: 10⁹ Ω input impedance prevents loading of resistive divider; 1.64 mA total supply current minimizes parasitic drain during vehicle sleep mode. |
| Automotive Door Module Window Position Feedback | Engine Coolant Level Detection Interface |
Use Scenario: Conditioning analog signal from potentiometer-based window position sensor in power window ECU. IC Role / Device Role / Timing Role: Low-noise, DC-stable buffer amplifier with 1 MHz bandwidth sufficient for slow mechanical position changes. Use Value: 39 nV/√Hz input voltage noise preserves resolution of 10-bit position measurement; AEC-Q100 qualification guarantees operation at 125°C near motor drivers. | Use Scenario: Amplifying low-level signal from capacitive coolant level sensor in engine bay. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier converting sensor current to voltage. Use Value: 15 nA input bias current prevents significant error in high-impedance sensor circuits; −40°C to 125°C operation ensures reliability under hood thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324DRQ1 | Same silicon, identical electrical specs, but rated for −40°C to 85°C industrial temperature range. | Not qualified for automotive under-hood or powertrain applications requiring 125°C operation. | Select LMV324DRQ1 only for cost-sensitive non-automotive designs where extended temperature is unnecessary. |
| TSV914IQDT | Higher GBW (8 MHz), lower offset (1.5 mV max), but higher supply current (850 µA typ) and not AEC-Q100 qualified. | Lacks automotive qualification and fails temperature screening; unsuitable for production automotive ECUs. | Consider TSV914IQDT only for prototyping or non-safety-critical infotainment subsystems where speed outweighs qualification requirements. |
Compared with LMV324DRQ1 and TSV914IQDT, LMV324IDRG4Q1 uniquely combines AEC-Q100 Grade 1 qualification, rail-to-rail output, and sub-2 mA total supply current-making it the only drop-in solution for production automotive body electronics requiring guaranteed 125°C operation and low power.
Availability
LMV324IDRG4Q1 is available at Aetrix Electronics and suitable for automotive body control modules, battery management systems, and sensor interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324IDRG4Q1 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and personal electronics markets.
The LMV3xx-Q1 product line was designed specifically for cost-sensitive, low-voltage automotive applications requiring rail-to-rail output, extended temperature operation, and AEC-Q100 qualification-targeting body electronics, chassis, and comfort systems.
FAQ
What is the operating temperature range for LMV324IDRG4Q1?
The LMV324IDRG4Q1 is qualified for automotive Grade 1 operation, with a specified operating free-air temperature range of −40°C to 125°C. This rating is verified per AEC-Q100 standards and applies across all electrical parameters in the datasheet's "electrical characteristics at specified free-air temperature range" tables. The device maintains rail-to-rail output swing and 1 MHz bandwidth throughout this full range.
Does LMV324IDRG4Q1 support true rail-to-rail input?
No, LMV324IDRG4Q1 does not support rail-to-rail input. Its common-mode input voltage range extends from −0.2 V to VCC + 0.2 V, meaning it accepts inputs 0.2 V beyond the supply rails-but not all the way to VCC or GND in high-precision configurations. However, it does provide true rail-to-rail output swing, delivering signals within 100 mV of VCC and 65 mV of GND at 5 V supply with 10 kΩ load.
Is LMV324IDRG4Q1 pin-compatible with standard LM324?
No, LMV324IDRG4Q1 is not pin-compatible with the legacy LM324. While both are quad op-amps in 14-pin SOIC packages, LMV324IDRG4Q1 uses the standard LMV324 pinout (GND on pin 4, VCC+ on pin 14), whereas LM324 places VCC+ on pin 4 and GND on pin 11. Interchanging them without PCB revision will cause functional failure and potential damage due to reversed supply connections.
What is the maximum capacitive load LMV324IDRG4Q1 can drive stably?
LMV324IDRG4Q1 remains stable with capacitive loads up to 500 pF when configured as a unity-gain buffer (AV = +1) with RL = 2 kΩ, as confirmed by Figure 3 in the datasheet showing ≥25% phase margin. For loads exceeding 500 pF, external isolation resistor (≥100 Ω) between output and capacitance is recommended to maintain stability, especially in automotive environments where EMI filtering adds parasitic capacitance.
How does LMV324IDRG4Q1 differ from LMV324IDRQ1?
LMV324IDRG4Q1 and LMV324IDRQ1 share identical electrical specifications and packaging (14-pin SOIC), but LMV324IDRG4Q1 is green RoHS-compliant (Pb-free, no Sb/Br), while LMV324IDRQ1 uses standard CU NIPDAU finish. Both are AEC-Q100 qualified for −40°C to 125°C, but LMV324IDRG4Q1 meets stricter environmental compliance requirements for modern automotive supply chains.
LMV324IDRG4Q1 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
LMV324IDRG4Q1 FAQ
1.How can I place an order for LMV324IDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324IDRG4Q1 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 LMV324IDRG4Q1 reliable?
The price and inventory of LMV324IDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324IDRG4Q1 is usually 5 days.
3.What payment methods are accepted for LMV324IDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324IDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324IDRG4Q1?
LMV324IDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324IDRG4Q1 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 LMV324IDRG4Q1?
For technical support, including LMV324IDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324IDRG4Q1 requirements.
6.How does Aetrix verify that LMV324IDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All LMV324IDRG4Q1 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 LMV324IDRG4Q1 meets industry standards.
7.What is the process for return or replacement of LMV324IDRG4Q1?
All LMV324IDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV324IDRG4Q1, 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 LMV324IDRG4Q1 part is unused and in its original packaging.
Return procedure for LMV324IDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324IDRG4Q1 Tags
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