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Texas Instruments LMV324QPWRE4
- Part No.:
- LMV324QPWRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV324QPWRE4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,550
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Product details
Overview
LMV324QPWRE4 from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5.5 V) single-supply operation, delivering 1 MHz unity-gain bandwidth, 1 V/μs slew rate, and 410 μA typical supply current per amplifier. It features rail-to-rail output swing, ground-sensing input common-mode range, and operates across –40°C to 125°C - enabling use in portable media players, HVAC sensor conditioning, and motor control feedback loops.
For engineers reviewing the LMV324QPWRE4 datasheet, LMV324QPWRE4 pinout, LMV324QPWRE4 application, or LMV324QPWRE4 equivalent, key selection criteria include its guaranteed rail-to-rail output drive into 10 kΩ at 2.7 V, input offset voltage ≤7 mV (typ), ESD protection exceeding 2000-V HBM, shutdown capability (in LMV324S variant), and TSSOP-14 package compatibility with space-constrained industrial PCB layouts.
Technical Context
The LMV324QPWRE4 implements a CMOS-input, rail-to-rail output op-amp architecture with internal compensation for stable unity-gain operation. Its input stage supports common-mode voltages down to ground (0 V) and up to VCC – 0.2 V, while the output stage delivers full swing within 60 mV of each rail under 10 kΩ load at 2.7 V.
It operates as a true single-supply device with no dual-rail requirement; biasing and signal referencing are simplified by the ground-capable input and rail-swinging output. The amplifier exhibits 60° phase margin and 10 dB gain margin at 1 MHz, ensuring robust stability with capacitive loads up to 100 pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V - enables direct integration into 3.3 V and 5 V systems without level-shifting or LDO overhead. |
| Unity-Gain Bandwidth | 1 MHz - supports audio pre-amplification, sensor signal buffering, and active filter stages up to ~100 kHz closed-loop. |
| Slew Rate | 1 V/μs - sufficient for 100 kHz full-scale sine waves at 1 Vpp without distortion in unity-gain configurations. |
| Input Offset Voltage | 7 mV typ (25°C) - allows accurate DC-coupled amplification of mV-level transducer outputs with minimal calibration. |
| Rail-to-Rail Output | Swings within 60 mV of VCC and GND at 10 kΩ load - maximizes dynamic range in low-voltage ADC driver applications. |
| ESD Protection | 2000-V HBM - meets IEC 61000-4-2 Level 2 requirements for board-level transient immunity without external protection. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive, industrial motor drives, and outdoor embedded controllers. |
Pinout & Package
TSSOP-14 package (PW), body size 5.00 mm × 4.40 mm, 0.65 mm pitch, thermally enhanced for surface-mount assembly on standard FR-4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Drives external load or next-stage input; rail-to-rail capable with 60 mV headroom at 10 kΩ. |
| 2 (IN–1) | Amplifier 1 inverting input | Accepts feedback network or inverted signal path; supports common-mode down to GND. |
| 3 (IN+1) | Amplifier 1 noninverting input | Accepts reference, sensor, or buffered signal; same ground-sensing range as IN–1. |
| 4 (VCC+) | Positive supply rail | Single 2.7–5.5 V supply input; decoupling capacitor required within 10 mm for stability. |
| 5 (IN+2) | Amplifier 2 noninverting input | Independent channel input; electrically isolated from other channels except shared VCC/GND. |
| 6 (IN–2) | Amplifier 2 inverting input | Used for differential configuration or inverting gain stage; matched bias current to IN+2. |
| 7 (OUT2) | Amplifier 2 output | Output stage identical to OUT1; no crosstalk specification but >90 dB isolation at 1 kHz per datasheet. |
| 8 (GND) | Negative supply / reference | System ground return; must be low-impedance plane connection for all four amplifiers. |
| 9 (IN+3) | Amplifier 3 noninverting input | Third independent channel input; shares same electrical specs and layout rules as IN+1/IN+2. |
| 10 (IN–3) | Amplifier 3 inverting input | Supports multi-channel instrumentation; input bias current 11–250 nA ensures low error in high-Z sources. |
| 11 (OUT3) | Amplifier 3 output | Delivers same rail-to-rail performance as OUT1/OUT2; sourcing/sinking current specified up to 60 mA. |
| 12 (IN–4) | Amplifier 4 inverting input | Fourth channel input; fully functional with identical AC/DC specs across temperature range. |
| 13 (IN+4) | Amplifier 4 noninverting input | Enables quad-channel signal conditioning - e.g., 4-sensor analog front-end in HVAC or motor control. |
| 14 (OUT4) | Amplifier 4 output | Final output stage; output swing and short-circuit current match other channels (120–300 mV low-level at 5 V). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables maximum signal dynamic range in 3.3 V systems - e.g., driving SAR ADCs with 0–3.3 V input range without level-shifting. |
| Ground-sensing input | Allows direct interfacing with 0 V-referenced sensors (thermistors, RTDs, current shunts) without input biasing resistors. |
| Low quiescent current | 410 μA typical total (all four amps) at 2.7 V - extends battery life in portable media players and netbooks. |
| –40°C to 125°C operation | Qualified for automotive cabin modules and industrial PLC I/O cards where ambient temperature exceeds 85°C. |
| No crossover distortion | CMOS input stage eliminates Class AB crossover notch, preserving fidelity in audio mixing and precision DC servo loops. |
Applications
| Desktop PCs | HVAC Sensor Conditioning |
|---|---|
Use Scenario: Voltage-level translation and fan speed control feedback in motherboard power management circuits. IC Role / Device Role / Timing Role: Quad op-amp used for PWM comparator reference generation, thermal diode amplification, VRM current sense amplification, and VRM voltage monitoring. Use Value: Single-package integration reduces BOM count and PCB area vs discrete solutions; rail-to-rail output ensures full 0–3.3 V DAC output utilization. | Use Scenario: Signal conditioning of NTC thermistors, humidity sensors, and airflow transducers in residential HVAC control boards. IC Role / Device Role / Timing Role: Amplifies low-level mV signals from temperature/humidity sensors, provides filtering, drives microcontroller ADC inputs, and buffers reference voltages. Use Value: Ground-sensing input eliminates need for negative supply or level-shifting; 125°C rating supports placement near heat exchangers. |
| Motor Control Feedback | Portable Media Players |
Use Scenario: Closed-loop current and position sensing in brushless DC motor drivers for appliances like washing machines. IC Role / Device Role / Timing Role: Amplifies shunt resistor voltage drops, conditions Hall-effect encoder signals, and buffers analog setpoints for motor driver ICs. Use Value: 1 V/μs slew rate supports fast current loop response; 4-channel density enables full 3-phase + fault detection on one IC. | Use Scenario: Audio line driver, microphone preamplifier, and headphone buffer in MP3 players and digital audio recorders. IC Role / Device Role / Timing Role: Provides gain, impedance matching, and DC blocking for analog audio paths between codec, mic, and speaker/headphone outputs. Use Value: Low 410 μA supply current extends playback time; rail-to-rail output drives 16 Ω headphones directly with minimal THD+N. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324IDR | SOIC-14 package (8.65 mm × 3.91 mm); same electrical specs, no shutdown function. | Larger footprint; preferred for through-hole prototyping or legacy SOIC-compatible designs. | Select when board space permits larger package or when existing SOIC footprints require drop-in replacement. |
| MCP6004-E/ST | Microchip part; 1 MHz GBW, 1 V/μs slew, but higher input offset (1.5 mV max) and lower ESD rating (4 kV HBM). | Lower cost in high-volume consumer applications; not qualified for automotive or extended temperature industrial use. | Choose for cost-sensitive, non-automotive applications where 125°C operation and 2 kV HBM are not required. |
Compared with LMV324QPWRE4, LMV324IDR offers identical performance in a larger SOIC package ideal for manual assembly, while MCP6004-E/ST trades ESD robustness and temperature range for lower unit cost in commercial-grade portable electronics.
Availability
LMV324QPWRE4 is available at Aetrix Electronics and suitable for desktop PC power management, HVAC sensor interfaces, and motor control feedback requiring stable component supply and long-term industrial lifecycle support.
Supply support for LMV324QPWRE4 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 connectivity technologies with over 90 years of innovation in high-reliability components.
The LMV3xx product line was designed specifically for cost-sensitive, space-constrained applications operating from 2.7 V to 5.5 V - targeting portable electronics, industrial sensors, and automotive cabin systems where rail-to-rail output and ground-sensing inputs are critical.
FAQ
What is the maximum supply voltage for LMV324QPWRE4?
The absolute maximum supply voltage for LMV324QPWRE4 is 5.5 V. Operation above this risks permanent damage. Recommended operating range is 2.7 V to 5.5 V, with full electrical specifications guaranteed across that span. At 5 V, LMV324QPWRE4 delivers 120 mV low-level output swing into 10 kΩ, confirming robust rail-to-rail behavior.
Does LMV324QPWRE4 support true rail-to-rail input?
No - LMV324QPWRE4 supports rail-to-rail *output* swing but has a ground-sensing input common-mode range (0 V to VCC – 0.2 V), not full rail-to-rail input. This allows direct connection to 0 V-referenced sensors but excludes signals extending beyond VCC. For full rail-to-rail input, consider TI's TLV2464 or similar devices.
Can LMV324QPWRE4 drive capacitive loads without oscillation?
Yes - LMV324QPWRE4 maintains stability with capacitive loads up to 100 pF at unity gain, as confirmed by phase margin ≥60° and gain margin ≥10 dB in the datasheet. For loads >100 pF, a series resistor (≥100 Ω) between output and capacitance is recommended to preserve stability.
Is LMV324QPWRE4 pin-compatible with LMV324IDR?
Yes - LMV324QPWRE4 (TSSOP-14) and LMV324IDR (SOIC-14) share identical pinout and electrical functionality. Both have 14 pins with identical terminal assignments (OUT1, IN–1, IN+1, VCC+, etc.). Mechanical compatibility requires PCB footprint adaptation, but no schematic changes are needed.
What is the typical input bias current of LMV324QPWRE4 at 25°C?
The typical input bias current of LMV324QPWRE4 is 11 nA at 25°C and 2.7 V supply, with a maximum of 250 nA across the full temperature range (–40°C to 125°C). This low bias current minimizes voltage errors in high-impedance sensor interfaces such as thermistor networks or photodiode transimpedance stages.
LMV324QPWRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 40 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV324QPWRE4 FAQ
1.How can I place an order for LMV324QPWRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324QPWRE4 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 LMV324QPWRE4 reliable?
The price and inventory of LMV324QPWRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324QPWRE4 is usually 5 days.
3.What payment methods are accepted for LMV324QPWRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324QPWRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324QPWRE4?
LMV324QPWRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324QPWRE4 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 LMV324QPWRE4?
For technical support, including LMV324QPWRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324QPWRE4 requirements.
6.How does Aetrix verify that LMV324QPWRE4 is sourced from the original manufacturer or authorized distributors?
All LMV324QPWRE4 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 LMV324QPWRE4 meets industry standards.
7.What is the process for return or replacement of LMV324QPWRE4?
All LMV324QPWRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV324QPWRE4, 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 LMV324QPWRE4 part is unused and in its original packaging.
Return procedure for LMV324QPWRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324QPWRE4 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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MCP6006UT-E/OT
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LM324PWR
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