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Texas Instruments LM324PW
- Part No.:
- LM324PW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM324PW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,596
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Product details
Overview
LM324PW from Texas Instruments is a quad operational amplifier in TSSOP-14 package, designed for cost-sensitive single-supply applications. It delivers rail-to-rail input (V– to V+ − 1.5V), 1.2 MHz gain-bandwidth, 0.5 V/μs slew rate, ±3 mV max input offset voltage (25°C), and 240 μA per amplifier quiescent current - enabling precision signal conditioning in power supplies, motor controls, and sensor interfaces.
For engineers reviewing the LM324PW datasheet, LM324PW pinout, LM324PW application, or LM324PW equivalent, key selection criteria include its 3V–36V supply range, common-mode input down to V–, output swing within 1.5V of rails, integrated EMI filtering, and drop-in compatibility with legacy LM324 variants across industrial temperature grades.
Technical Context
The LM324PW implements four independent high-voltage op amps with unity-gain stability and internal frequency compensation. Its input stage supports common-mode voltages extending to the negative rail, while the output stage provides asymmetric swing capability: 1.35V above V– and up to 1.75V below V+ at 5mA load.
It features integrated RF/EMI rejection filters and achieves 2kV HBM / 1.5kV CDM ESD robustness. The device operates across –40°C to +85°C ambient temperature and maintains 25 V/mV minimum open-loop gain over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - enables direct use in 5V, 12V, 24V, and 32V industrial power rails without regulation |
| Input Offset Voltage (max) | ±3 mV at 25°C - supports DC-coupled amplification of mV-level sensor signals with <0.3% initial error |
| Gain-Bandwidth Product | 1.2 MHz - allows stable closed-loop gain ≥10 at 100 kHz for anti-aliasing or active filtering |
| Slew Rate | 0.5 V/μs - sufficient for 100 kHz sine wave output at 5Vpp without distortion |
| Quiescent Current (per amp) | 240 μA typical - enables low-power operation in battery-backed monitoring circuits |
| Common-Mode Input Range | V– to (V+ − 1.5V) - permits direct sensing of ground-referenced signals in single-supply systems |
| Output Voltage Swing | Within 1.5V of rails (load-dependent) - preserves dynamic range when driving ADC references or comparators |
Pinout & Package
TSSOP-14 (PW) package: 5mm × 6.4mm body, 0.65mm lead pitch, exposed thermal pad (non-electrical), surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 7, 11 | No Connect | Unused pins - must remain unconnected; no internal bonding or function |
| 2 | Inverting Input (Amp 1) | Differential input node for first op amp; accepts signals down to V– |
| 3 | Non-Inverting Input (Amp 1) | Positive input for first op amp; common-mode range includes V– |
| 4 | Positive Supply (VCC+) | Main power rail connection for all four amplifiers; accepts 3V–36V |
| 6 | Non-Inverting Input (Amp 2) | Positive input for second op amp; electrically isolated from other inputs |
| 9 | Inverting Input (Amp 2) | Negative input for second op amp; shares same input structure as Pin 2 |
| 10 | Output (Amp 2) | Amplified output of second op amp; capable of sourcing/sinking ±20 mA |
| 12 | Output (Amp 3) | Third amplifier output; identical drive strength and swing to Pin 10 |
| 13 | Inverting Input (Amp 3) | Negative input for third op amp; matches Pin 2/9 electrical characteristics |
| 14 | Output (Amp 4) | Fourth amplifier output; fully independent; supports capacitive loads ≤100 pF |
| 15 | Non-Inverting Input (Amp 4) | Positive input for fourth op amp; referenced to same VCM range as Pins 3/6 |
| 16 | Negative Supply / Ground (VCC–) | Return path for all amplifiers; used as ground reference in single-supply configurations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends to V–, enabling direct interface with 0V-referenced sensors and transducers |
| Integrated EMI/RF filter | Reduces susceptibility to 30–1000 MHz noise in motor drives and switching power supplies |
| Drop-in replacement for LM324/LM2902 | Preserves existing PCB layout and firmware; no schematic or layout changes required |
| Low input bias current (≤35 nA) | Minimizes voltage error in high-impedance source networks (e.g., thermistor bridges, photodiode amps) |
| 2kV HBM ESD rating | Withstands handling and board assembly without external protection components |
Applications
| Power Supply Monitoring | Motor Control Feedback |
|---|---|
Use Scenario: Real-time voltage/current sensing in AC-DC adapters and server PSUs. IC Role / Device Role / Timing Role: Quad op amp configured as differential sense amplifier, comparator, and error amplifier in feedback loop. Use Value: Single-package integration reduces BOM count and improves thermal tracking between channels. | Use Scenario: Closed-loop speed/torque regulation in BLDC fan drivers and pump controllers. IC Role / Device Role / Timing Role: Amplifies Hall-effect or shunt-resistor signals; conditions analog feedback before ADC sampling. Use Value: Rail-to-rail input allows direct measurement of 0–3.3V PWM-derived analog signals without level-shifting. |
| Sensor Signal Conditioning | Industrial Analog I/O Modules |
Use Scenario: Linearization and amplification of RTD, thermocouple, or pressure transducer outputs. IC Role / Device Role / Timing Role: Configured as instrumentation amplifier front-end and low-pass filter stage. Use Value: ±3 mV offset ensures <0.1°C error in 100Ω Pt100 measurements at 25°C ambient. | Use Scenario: Isolated analog input/output expansion in PLC backplanes and fieldbus gateways. IC Role / Device Role / Timing Role: Buffers and scales 4–20 mA loop signals; drives DAC reference and ADC input stages. Use Value: 36V supply tolerance supports direct connection to 24V industrial bus rails without LDO pre-regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | SOIC-14 package; identical electrical specs; 8.65mm × 6mm footprint vs. PW's 5mm × 6.4mm | Preferred for through-hole prototyping or legacy board upgrades where TSSOP rework is impractical | Select LM324DR when board space allows larger package or when SOIC hand-soldering is required |
| LM2902PW | Same PW package; extended temp range (–40°C to +125°C); ±3 mV offset (same max), but rated for automotive-grade reliability | Required for under-hood or industrial environments exceeding 85°C ambient | Choose LM2902PW when operating temperature exceeds +85°C or AEC-Q200 compliance is mandated |
Compared with LM324DR and LM2902PW, the LM324PW offers optimal balance of miniaturization (TSSOP-14), industrial temperature support (–40°C to +85°C), and drop-in compatibility - making it ideal for space-constrained, cost-driven embedded control designs where extended temperature is not required.
Availability
LM324PW is available at Aetrix Electronics and suitable for power supply monitoring, motor control feedback, and sensor signal conditioning requiring stable component supply across industrial production cycles.
Supply support for LM324PW 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 op amp innovation and broad industrial qualification.
The LM324PW belongs to TI's industry-standard quad op amp product line, engineered for high-volume, cost-sensitive applications demanding reliability, wide supply range, and seamless legacy compatibility.
FAQ
What is the maximum operating temperature for the LM324PW?
The LM324PW is rated for operation from –40°C to +85°C ambient temperature. This specification is validated per TI's SLOS066AE datasheet Section 6.3, and applies across the full 3V–36V supply range. Operation beyond +85°C requires derating or substitution with LM2902PW (–40°C to +125°C).
Does the LM324PW support single-supply operation?
Yes, the LM324PW fully supports single-supply operation. Its input common-mode range extends to the negative rail (V–), and its output can swing within 1.5V of both supply rails. When V– is grounded, it functions as a true single-supply op amp - commonly used in 5V or 12V systems with rail-referenced sensors.
Is the LM324PW pin-compatible with older LM324 variants?
Yes, the LM324PW is pin-compatible with all standard LM324 variants in TSSOP-14 (PW) packaging, including LM324, LM324A, and LM324B. Pin numbering and function match exactly per TI's Figure 5-1 and Table 5-1. No PCB or schematic changes are needed for migration.
What is the typical quiescent current per amplifier in the LM324PW?
The LM324PW draws 240 μA per amplifier typical at 5V supply and 25°C, rising to 300 μA maximum across –40°C to +85°C. At 36V, quiescent current reaches 750 μA maximum. These values are specified in Section 6.5 of the TI datasheet and enable low-power system design when amplifiers are not actively driving loads.
Can the LM324PW drive capacitive loads?
The LM324PW is characterized to safely drive capacitive loads up to 100 pF without oscillation, as confirmed in Section 6.5 (CLOAD parameter). For loads >100 pF, external isolation resistance (e.g., 10–100 Ω in series with output) is recommended to maintain phase margin and prevent instability.
LM324PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM324PW FAQ
1.How can I place an order for LM324PW through Aetrix?
Please submit a Request for Quotation (RFQ) for LM324PW 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 LM324PW reliable?
The price and inventory of LM324PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM324PW is usually 5 days.
3.What payment methods are accepted for LM324PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM324PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM324PW?
LM324PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM324PW 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 LM324PW?
For technical support, including LM324PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM324PW requirements.
6.How does Aetrix verify that LM324PW is sourced from the original manufacturer or authorized distributors?
All LM324PW 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 LM324PW meets industry standards.
7.What is the process for return or replacement of LM324PW?
All LM324PW units undergo pre-shipment inspection (PSI). If there is an issue with LM324PW, 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 LM324PW part is unused and in its original packaging.
Return procedure for LM324PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM324PW Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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