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Texas Instruments LM324LVIPWR
- Part No.:
- LM324LVIPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM324LVIPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,476
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Product details
Overview
LM324LVIPWR from Texas Instruments is a quad-channel, low-voltage operational amplifier designed for cost-sensitive, single-supply systems operating from 2.7 V to 5.5 V. It delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 40 nV/√Hz input voltage noise density, and 90 µA per channel quiescent current - enabling precision signal conditioning in battery-powered environmental sensors and low-side current sensing circuits.
For engineers reviewing the LM324LVIPWR datasheet, LM324LVIPWR pinout, LM324LVIPWR application, or LM324LVIPWR equivalent, this page provides verified specifications, SOIC-14 package details, functional pin mapping, real-world use cases in HVAC and UPS systems, and two validated alternative op amps with documented performance trade-offs.
Technical Context
The LM324LVIPWR implements a P-channel input stage with parallel N-channel enhancement to eliminate phase reversal during overdrive, supporting rail-to-rail common-mode input down to ground and within 1 V of V+. Its unity-gain stable architecture features 75° phase margin at 5.5 V supply and achieves 1.5 V/µs slew rate with 4 µs (0.1%) settling time for 2-V steps.
It operates across –40°C to 125°C with 84 dB DC CMRR at 2.7 V and 92 dB at 5.5 V, 100 dB PSRR, and robust 2-kV HBM ESD tolerance. The device maintains open-loop gain ≥110 dB at 2.7 V and ≥125 dB at 5.5 V, enabling stable closed-loop performance in high-impedance sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - supports four independent analog signal paths on one die, reducing board space vs discrete singles/duals. |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct operation from Li-ion, USB, or regulated 3.3 V rails without level-shifting. |
| Input Offset Voltage | ±1 mV (typ) - ensures ≤10 mV error in 10-bit ADC interfaces with 3.3 V full-scale range. |
| Unity-Gain Bandwidth | 1 MHz - supports stable amplification of signals up to ~100 kHz with <1% gain error. |
| Quiescent Current / Ch | 90 µA (typ) - allows >1-year battery life in coin-cell–powered smoke detectors or portable test gear. |
| Input Voltage Noise | 40 nV/√Hz @ 1 kHz - preserves SNR in low-level thermistor or strain gauge front-ends. |
| Common-Mode Range | Includes ground to (V+) – 1 V - permits direct interfacing with 0–3.3 V sensors in single-supply configurations. |
Pinout & Package
LM324LVIPWR is packaged in a 14-pin SOIC (D) with body size 8.65 mm × 3.91 mm, optimized for automated assembly and thermal dissipation in industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads ≥2 kΩ; swings to within 1 V of V+ and 75 mV of V–. |
| 2 | IN1– | Inverting input, channel 1 - accepts feedback networks for inverting gain stages or transimpedance configurations. |
| 3 | IN1+ | Noninverting input, channel 1 - connects to reference voltages or high-impedance sensor outputs. |
| 4 | V+ | Positive supply - must be decoupled with ≥100 nF ceramic capacitor near pin for stability. |
| 5 | IN2+ | Noninverting input, channel 2 - isolated from channel 1; supports dual-sensor monitoring (e.g., temp + humidity). |
| 6 | IN2– | Inverting input, channel 2 - used for differential sensing or active filtering with matched RC networks. |
| 7 | OUT2 | Amplifier 2 output - electrically independent; shares V+ and V– rails with other channels. |
| 8 | OUT3 | Amplifier 3 output - enables three-stage signal chain (e.g., gain → filter → buffer) without external ICs. |
| 9 | IN3– | Inverting input, channel 3 - supports cascaded configurations where previous stage output feeds this node. |
| 10 | IN3+ | Noninverting input, channel 3 - referenced to same ground as all channels; no internal isolation. |
| 11 | V– | Negative supply / ground - functions as system ground in single-supply mode; must be low-impedance. |
| 12 | IN4+ | Noninverting input, channel 4 - accommodates fourth sensor or diagnostic path (e.g., supply rail monitor). |
| 13 | IN4– | Inverting input, channel 4 - configurable for comparator-like behavior with hysteresis via external resistors. |
| 14 | OUT4 | Amplifier 4 output - delivers final conditioned signal to MCU ADC or display driver with <100 µV offset drift. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal under overdrive | Eliminates output latch-up during input transients - critical for field transmitter reliability in HVAC control loops. |
| Robust 2-kV HBM ESD rating | Survives handling and board-level ESD events without protection diodes, reducing BOM count in consumer electronics. |
| Extended temperature range | –40°C to 125°C operation enables deployment in automotive cabin modules and industrial power supply monitors. |
| Low broadband noise | 40 nV/√Hz at 1 kHz ensures <0.01% THD+N in audio preamp and oscilloscope front-end applications. |
| Unity-gain stable | Operates without external compensation in gain = 1 buffers - simplifies design of reference voltage followers. |
Applications
| Environmental Sensor Signal Conditioning | Low-Side Current Sensing |
|---|---|
|
Use Scenario: Amplifying microvolt-level outputs from thermistors, RTDs, or gas sensors in battery-powered air quality monitors. IC Role / Device Role / Timing Role: Quad-channel precision amplifier providing gain, offset correction, and filtering for four independent sensor inputs. Use Value: ±1 mV offset and 40 nV/√Hz noise preserve resolution in 12-bit ADC conversions across –40°C to 85°C ambient. |
Use Scenario: Measuring load current in UPS inverters or DC motor controllers by amplifying shunt resistor voltage. IC Role / Device Role / Timing Role: Single-supply op amp configured as noninverting amplifier with 35× gain for 0–1 A sensing range. Use Value: Rail-to-rail input enables accurate measurement down to 0 V common-mode; 1.5 V/µs slew rate supports fast transient detection. |
| HVAC Temperature Transmitter | Rack-Mount Server Power Monitoring |
|
Use Scenario: Converting PT100 resistance changes into 0–5 V analog outputs for building management systems. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier with matched input pairs for 3-wire RTD bridge excitation and linearization. Use Value: 84 dB CMRR at 2.7 V suppresses 50/60 Hz mains interference in unshielded HVAC duct environments. |
Use Scenario: Monitoring 12 V and 3.3 V rail currents in enterprise servers using multiple shunt resistors and ADC inputs. IC Role / Device Role / Timing Role: Quad op amp performing simultaneous current-to-voltage conversion for four independent power domains. Use Value: 90 µA/channel quiescent current minimizes self-heating error in densely packed server PCBs with tight thermal budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher 6.4 MHz GBW, 220 µA/ch IQ, ±2 mV VOS - trades power for speed and precision. | Better suited for active filters or higher-frequency sensor interfaces (>100 kHz), less optimal for ultra-low-power battery use. | Select TLV2464IDR when bandwidth >1 MHz or offset <±2 mV is required; LM324LVIPWR preferred for IQ <100 µA constraints. |
| LM324DR | Legacy 36 V max supply, ±3 mV VOS, 1.2 mA/ch IQ, –25°C to 85°C - higher power, wider voltage, narrower temp range. | Compatible in legacy 5 V designs but unsuitable for 3.3 V-only or extended-temp industrial deployments. | Choose LM324DR only for backward compatibility in existing 5 V systems; LM324LVIPWR required for modern low-voltage, wide-temp designs. |
Compared with TLV2464IDR and LM324DR, LM324LVIPWR uniquely balances ultra-low quiescent current (90 µA/ch), extended temperature support (–40°C to 125°C), and industry-standard SOIC-14 footprint - making it the optimal choice for new energy-efficient, ruggedized embedded systems where power and reliability are co-prioritized.
Availability
LM324LVIPWR is available at Aetrix Electronics and suitable for environmental sensor signal conditioning, low-side current sensing, HVAC temperature transmitters, and rack-mount server power monitoring requiring stable component supply across automotive, industrial, and consumer production cycles.
Supply support for LM324LVIPWR 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 and embedded processing technologies, with decades of expertise in precision amplifiers and power management ICs.
The LM324LV family was engineered specifically for cost-optimized, low-voltage industrial and consumer systems - delivering enhanced performance over legacy LM324 while maintaining pin compatibility and broad application flexibility.
FAQ
What is the maximum operating temperature for LM324LVIPWR?
The LM324LVIPWR is rated for continuous operation from –40°C to 125°C junction temperature. This extended range is validated per TI's thermal characterization data (RθJA = 102.1°C/W for SOIC-14), enabling reliable use in automotive engine compartments, industrial motor drives, and outdoor environmental monitoring enclosures without derating.
Does LM324LVIPWR support true rail-to-rail input?
LM324LVIPWR supports common-mode input down to the negative rail (ground in single-supply mode) and up to (V+) – 1 V across its full 2.7 V to 5.5 V supply range. It does not support input voltages at the positive rail, so designs must ensure VIN ≤ V+ – 1 V to maintain specified offset, CMRR, and THD+N performance per Section 6.7 of the datasheet.
Can LM324LVIPWR drive capacitive loads directly?
LM324LVIPWR exhibits stable step response with ≤100 pF capacitive load at unity gain, per Figure 6-23 and 6-24. For loads >100 pF, external series resistance (≥100 Ω) at the output is recommended to maintain phase margin >60°, as shown in Figure 6-20 - critical for driving long traces or ADC input capacitors in data acquisition systems.
Is LM324LVIPWR pin-compatible with legacy LM324 variants?
LM324LVIPWR uses the standard SOIC-14 pinout defined for quad op amps (per Figure 5-3), matching LM324, LM2902, and TL084. However, its lower supply range (2.7–5.5 V vs. 3–36 V) and reduced quiescent current require verification of bias network compatibility in existing 5 V or higher designs before drop-in replacement.
What is the overload recovery time of LM324LVIPWR?
The LM324LVIPWR recovers from output saturation in 1 µs (typical), as specified in Section 6.7 Electrical Characteristics. This fast recovery enables accurate pulse-width measurement and transient current capture in motor control and UPS fault-detection circuits without signal distortion or extended dead time.
LM324LVIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 90µA (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
LM324LVIPWR FAQ
1.How can I place an order for LM324LVIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM324LVIPWR 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 LM324LVIPWR reliable?
The price and inventory of LM324LVIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM324LVIPWR is usually 5 days.
3.What payment methods are accepted for LM324LVIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM324LVIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM324LVIPWR?
LM324LVIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM324LVIPWR 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 LM324LVIPWR?
For technical support, including LM324LVIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM324LVIPWR requirements.
6.How does Aetrix verify that LM324LVIPWR is sourced from the original manufacturer or authorized distributors?
All LM324LVIPWR 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 LM324LVIPWR meets industry standards.
7.What is the process for return or replacement of LM324LVIPWR?
All LM324LVIPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM324LVIPWR, 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 LM324LVIPWR part is unused and in its original packaging.
Return procedure for LM324LVIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM324LVIPWR 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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LM2904DGKR
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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
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