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Texas Instruments LMV324QPWRQ1
- Part No.:
- LMV324QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV324QPWRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,062
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Product details
Overview
LMV324QPWRQ1 from Texas Instruments is a quad-channel, automotive-grade 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-enabling use in low-voltage sensor signal conditioning and body control modules.
For engineers reviewing the LMV324QPWRQ1 datasheet, LMV324QPWRQ1 pinout, LMV324QPWRQ1 application, or LMV324QPWRQ1 equivalent, key selection criteria include its AEC-Q100 qualification, TSSOP-14 package thermal performance (θJA = 113°C/W), rail-to-rail output drive into 2-kΩ loads, and guaranteed operation over −40°C to +125°C.
Technical Context
The LMV324QPWRQ1 implements a CMOS-input, rail-to-rail output op-amp architecture optimized for single-supply automotive systems. Its input stage supports common-mode voltage down to ground, eliminating level-shifting requirements in battery-monitoring and thermistor interfaces.
Each of the four amplifiers delivers 1-MHz gain-bandwidth product and 60° phase margin under 2-kΩ/200-pF load conditions, ensuring stable unity-gain buffer operation without external compensation in most sensor front-end 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 and sensors. |
| Unity-Gain Bandwidth | 1 MHz - Supports anti-aliasing filtering and active sensor conditioning up to ~100 kHz closed-loop bandwidth. |
| Slew Rate | 1 V/µs - Sufficient for 100-kHz full-scale sine wave output with ≤0.1% distortion at 2.5-V peak. |
| Input Offset Voltage | 7 mV max (full temp range) - Allows direct DC-coupled amplification of mV-level thermocouple or strain gauge signals with <1% error. |
| Supply Current (Quad) | 410 µA typ at 5 V - Enables always-on monitoring circuits with sub-1-mA total quiescent budget. |
| Operating Temperature | −40°C to +125°C - Qualified per AEC-Q100 Grade 1 for engine bay and powertrain applications. |
| Rail-to-Rail Output | VOL = 65 mV, VOH = VCC − 100 mV (RL = 10 kΩ) - Maximizes dynamic range in 3.3-V ADC interfaces. |
Pinout & Package
TSSOP-14 package (PW drawing), 5.0 mm × 4.4 mm × 1.2 mm body, 0.65-mm lead pitch, moisture sensitivity level 1 (260°C reflow compatible).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN+ | Non-inverting input for each of four independent amplifiers. |
| 2, 6, 10, 14 | IN− | Inverting input for each amplifier; accepts common-mode voltages from −0.2 V to VCC + 0.2 V. |
| 3, 7, 11, 12 | OUT | Rail-to-rail output capable of sourcing/sinking ≥10 mA at VCC = 5 V. |
| 4 | GND | Analog ground reference; must be connected to low-impedance system ground plane. |
| 14 | VCC+ | Positive supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates switching artifacts in Class-AB output stage, enabling clean audio and precision analog signal paths. |
| Ground-Sensing Input Range | Common-mode voltage includes 0 V, allowing direct connection to resistive sensors referenced to chassis ground. |
| AEC-Q100 Qualified | Qualified to Grade 1 (−40°C to +125°C), including HTOL, temperature cycling, and ESD testing per automotive standards. |
| Low Input Bias Current | 250 nA max ensures minimal loading on high-impedance pH electrodes or photodiode transimpedance nodes. |
| Stable with Capacitive Loads | Guaranteed stability driving ≥100 pF loads without isolation resistor, simplifying LCD bias and DAC output buffering. |
Applications
| Body Control Module Sensor Interface | Automotive Cabin Air Quality Monitor |
|---|---|
Use Scenario: Amplifying low-level signals from NTC thermistors and humidity sensors in door modules and HVAC controls. IC Role / Device Role / Timing Role: Quad op-amp configured as precision non-inverting amplifiers and voltage followers for signal conditioning prior to MCU ADC sampling. Use Value: Rail-to-rail output maximizes 3.3-V ADC utilization; ground-sensing inputs eliminate level-shifters, reducing BOM count by one IC per channel. | Use Scenario: Signal conditioning for electrochemical CO₂ and VOC sensors requiring low-noise, low-drift amplification near ground potential. IC Role / Device Role / Timing Role: Transimpedance amplifier and offset-compensated differential stage for ppm-level gas concentration detection. Use Value: 39 nV/√Hz input voltage noise and 5 µV/°C offset drift enable sub-1% measurement accuracy across cabin temperature range. |
| 12-V Battery Voltage Monitor | Electric Power Steering (EPS) Motor Current Sense |
Use Scenario: High-side and low-side sensing of 12-V battery voltage and starter current during cranking events. IC Role / Device Role / Timing Role: Precision difference amplifier and buffered reference generator for real-time battery health diagnostics. Use Value: 65 dB CMRR at 0–4 V common-mode range rejects alternator ripple; 125°C rating ensures reliability during under-hood thermal soak. | Use Scenario: Isolation-free current sensing in EPS motor phase legs using shunt resistors and bidirectional amplification. IC Role / Device Role / Timing Role: Bidirectional current sense amplifier with programmable gain and rail-to-rail output for MCU current loop control. Use Value: 1-V/µs slew rate supports fast overcurrent response (<1 µs); 410 µA quiescent current enables continuous monitoring during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324QDRQ1 | SOIC-14 package (86°C/W θJA), same electrical specs, larger footprint and higher thermal resistance. | Better suited for prototyping or legacy PCBs with SOIC footprints; less suitable for space-constrained modules. | Select when board layout already accommodates SOIC-14 or thermal derating margins exceed 20°C. |
| TSV914IQDT | Higher GBW (8 MHz), lower noise (14 nV/√Hz), but higher supply current (820 µA) and no AEC-Q100 qualification. | Applicable in non-automotive industrial or consumer designs requiring higher speed or precision. | Choose only for non-automotive applications where AEC-Q100 compliance is not required and 8-MHz bandwidth is needed. |
Compared with LMV324QDRQ1 and TSV914IQDT, the LMV324QPWRQ1 provides optimal balance of automotive qualification, compact TSSOP-14 packaging, and ultra-low quiescent power-making it the preferred choice for production-tier body electronics where footprint, thermal performance, and qualification are jointly constrained.
Availability
LMV324QPWRQ1 is available at Aetrix Electronics and suitable for automotive body control modules, cabin air quality monitors, battery management subsystems, and electric power steering current sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324QPWRQ1 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 delivering analog and embedded processing solutions for automotive, industrial, personal electronics, and communications markets.
The LMV3xx-Q1 product line was designed specifically for cost-sensitive, low-voltage automotive signal conditioning applications-including sensor interfaces, battery monitoring, and actuator drivers-where AEC-Q100 qualification, rail-to-rail operation, and sub-500-µA quiescent current are mandatory.
FAQ
What is the maximum operating junction temperature for LMV324QPWRQ1?
The LMV324QPWRQ1 has a maximum operating virtual junction temperature (TJ) of 150°C, as specified in the Absolute Maximum Ratings table. This limit applies under all operating conditions, and thermal design must ensure that power dissipation and ambient temperature keep actual junction temperature below this threshold-especially critical in under-hood applications where ambient can reach 125°C.
Does LMV324QPWRQ1 support true rail-to-rail input operation?
The LMV324QPWRQ1 does not support rail-to-rail input; its common-mode input voltage range extends from −0.2 V to VCC + 0.2 V (with 50-dB CMRR guaranteed from 0 V to VCC − 1 V). However, it does provide rail-to-rail output swing-capable of driving within 65 mV of GND and 100 mV of VCC under 10-kΩ load-making it ideal for single-supply systems where output headroom is critical.
Can LMV324QPWRQ1 drive capacitive loads without oscillation?
Yes, the LMV324QPWRQ1 is internally compensated for stability with capacitive loads up to 100 pF when driving a 2-kΩ load, as confirmed by Figure 6–9 in the datasheet. For loads >100 pF, a series isolation resistor (≥10 Ω) between the output and capacitance is recommended to maintain ≥45° phase margin and prevent peaking or ringing in sensor filter stages.
What is the input offset voltage drift over temperature for LMV324QPWRQ1?
The LMV324QPWRQ1 has an average input offset voltage temperature coefficient of 5 µV/°C, measured at 25°C. Over the full −40°C to +125°C operating range, the total offset variation due to temperature is bounded by the 9-mV maximum VIO specification, meaning worst-case drift contributes ≤2 µV/°C average across the range-critical for maintaining accuracy in uncalibrated temperature-sensing circuits.
Is LMV324QPWRQ1 pin-compatible with standard LM324 or LMV324 variants?
No, LMV324QPWRQ1 is not pin-compatible with commercial-grade LM324 or non-Q1 LMV324 variants in TSSOP-14. While the pin functions match (same IN+/IN−/OUT/GND/VCC assignment), the Q1 version undergoes additional automotive screening, tighter test limits, and different lot traceability-requiring separate qualification. Substitution requires validation of AEC-Q100 stress test results and thermal derating under automotive duty cycles.
LMV324QPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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 ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV324QPWRQ1 FAQ
1.How can I place an order for LMV324QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324QPWRQ1 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 LMV324QPWRQ1 reliable?
The price and inventory of LMV324QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324QPWRQ1 is usually 5 days.
3.What payment methods are accepted for LMV324QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324QPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324QPWRQ1?
LMV324QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324QPWRQ1 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 LMV324QPWRQ1?
For technical support, including LMV324QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324QPWRQ1 requirements.
6.How does Aetrix verify that LMV324QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV324QPWRQ1 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 LMV324QPWRQ1 meets industry standards.
7.What is the process for return or replacement of LMV324QPWRQ1?
All LMV324QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV324QPWRQ1, 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 LMV324QPWRQ1 part is unused and in its original packaging.
Return procedure for LMV324QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324QPWRQ1 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
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LM324DR
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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
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LM2902DR
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LM358P
Texas Instruments
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