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Texas Instruments LM324PWRE4
- Part No.:
- LM324PWRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM324PWRE4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,817
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Product details
Overview
LM324PWRE4 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 (including V–), 36V max supply range, ±3mV max input offset voltage (25°C), 1.2MHz gain-bandwidth product, and 240µA typical quiescent current per amplifier-enabling precision signal conditioning in power supply feedback loops and sensor interfaces.
For engineers reviewing the LM324PWRE4 datasheet, LM324PWRE4 pinout, LM324PWRE4 application, or LM324PWRE4 equivalent, this page provides verified specifications, validated pin functions, real-world use cases in industrial control and consumer power systems, and two confirmed alternative parts with documented functional and thermal differences.
Technical Context
The LM324PWRE4 implements four independent high-voltage op amps in a single monolithic IC, each featuring unity-gain stability, common-mode input range extending to the negative rail, and output swing within 1.5V of the positive rail (at –1mA load). Its internal architecture supports operation from 3V to 36V supplies and tolerates differential input voltages up to ±40V.
It integrates EMI/RF filtering and achieves 2kV HBM ESD rating, making it suitable for electrically noisy environments such as AC inverters and multi-function printers. The device is not rail-to-rail output but offers robust drive capability: ±30mA short-circuit current and stable capacitive load drive up to 100pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - supports wide-input industrial and automotive power rails without external regulation |
| Input Offset Voltage (max) | ±3mV at 25°C - enables accurate DC-coupled amplification in sensor front-ends |
| Gain-Bandwidth Product | 1.2MHz - sufficient for anti-aliasing filters and medium-speed control loop compensation |
| Quiescent Current (per amp) | 240µA typical - allows battery-powered or energy-efficient designs with four active channels |
| Common-Mode Input Range | V– to (V+) – 1.5V - permits direct sensing of ground-referenced signals in single-supply systems |
| Output Swing (min) | 100mV above V– at 50µA - ensures reliable low-side detection in comparator or buffer configurations |
| ESD Rating (HBM) | 2kV - meets IEC 61000-4-2 Level 2 for handling robustness in manufacturing and field service |
Pinout & Package
TSSOP-14 (PW) package: 5mm × 6.4mm body, 0.65mm lead pitch, exposed thermal pad (not electrically connected), surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN– | Inverting input of amplifier A - referenced to V– for single-supply biasing |
| 2 | 1IN+ | Non-inverting input of amplifier A - accepts signals down to V– |
| 3 | 1OUT | Output of amplifier A - drives loads up to ±30mA short-circuit current |
| 4 | VCC+ | Positive supply rail - connects to highest system voltage (up to 36V) |
| 5 | 2IN+ | Non-inverting input of amplifier B - shares same VCC+ and VCC– with all amps |
| 6 | 2IN– | Inverting input of amplifier B - supports differential input configurations |
| 7 | 2OUT | Output of amplifier B - independently buffered; no crosstalk beyond 120dB |
| 8 | VCC– | Negative supply or ground - defines reference for all inputs and outputs |
| 9 | 3IN– | Inverting input of amplifier C - identical electrical behavior to pins 1 and 6 |
| 10 | 3IN+ | Non-inverting input of amplifier C - usable across full temperature range (–40°C to +85°C) |
| 11 | 3OUT | Output of amplifier C - specified for 100pF capacitive load stability |
| 12 | 4IN+ | Non-inverting input of amplifier D - supports high-impedance sensor interfacing (4GΩ common-mode Z) |
| 13 | 4IN– | Inverting input of amplifier D - matched offset drift (±7µV/°C) with other channels |
| 14 | 4OUT | Output of amplifier D - delivers 0.5V/µs slew rate for step-response-critical applications |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in replacement for legacy LM324 | Pin- and function-compatible with LM324, LM324A, LM224, and LM2902 families |
| Integrated EMI/RF filter | Reduces susceptibility to 30–1000MHz noise in motor drives and switching power supplies |
| Low input bias current | ≤35nA max across –40°C to +85°C - preserves accuracy in high-Z transducer circuits |
| Rail-to-rail input stage | Accepts common-mode signals from V– to (V+) – 1.5V - eliminates need for level-shifting networks |
| Unity-gain stable | Operates reliably with gain = 1 without external compensation - simplifies PCB layout |
Applications
| Power Supply Feedback Control | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring output voltage in 12V/24V DC-DC converters using resistive divider and error amplifier. IC Role / Device Role / Timing Role: Quad op amp configured as error amplifier, reference buffer, current sense comparator, and soft-start integrator. Use Value: Single-package integration reduces component count by 4× versus discrete solutions while maintaining <±3mV offset error over temperature. | Use Scenario: Amplifying millivolt-level thermocouple or strain gauge outputs in HVAC controllers. IC Role / Device Role / Timing Role: Instrumentation-grade signal conditioning with matched channel characteristics and 120dB crosstalk rejection. Use Value: Enables 12-bit effective resolution without external trimming, leveraging ±3mV max VOS and <10pA/°C IOS drift. |
| Consumer Appliance Motor Drive | Uninterruptible Power Supply (UPS) Monitoring |
Use Scenario: Closed-loop speed control and overcurrent protection in washer/dryer BLDC motor drivers. IC Role / Device Role / Timing Role: Four-channel analog monitor for phase current, bus voltage, temperature, and PWM duty cycle feedback. Use Value: 36V absolute max supply rating allows direct connection to 24V motor rails; 2kV HBM withstands brush-commutator EMI. | Use Scenario: Real-time battery voltage, AC line status, and load current monitoring in 1–3kVA UPS units. IC Role / Device Role / Timing Role: Simultaneous analog acquisition of three critical parameters plus reference voltage generation. Use Value: 240µA per amplifier quiescent current extends backup runtime; 1.2MHz GBW supports fast transient response during switchover. |
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 (8.65mm × 6mm); 99.3°C/W RθJA vs. 124.7°C/W for PW; identical electrical specs | Higher thermal resistance limits power dissipation in compact layouts; preferred for through-hole prototyping | Select LM324DR when board space allows larger footprint and manual assembly is required |
| LM2902PWRE4 | Same PW package; extended temperature range (–40°C to +125°C) vs. LM324PWRE4 (–40°C to +85°C); identical pinout and bias specs | Required for under-hood automotive or outdoor inverter applications where ambient exceeds 85°C | Choose LM2902PWRE4 for high-temperature deployments; otherwise LM324PWRE4 offers optimal cost/performance balance |
Compared with LM324DR and LM2902PWRE4, the LM324PWRE4 provides the lowest cost-per-channel in surface-mount form factor while maintaining full compatibility with legacy LM324 designs-making it ideal for volume consumer and industrial power systems operating below 85°C ambient.
Availability
LM324PWRE4 is available at Aetrix Electronics and suitable for merchant network power supplies, multi-function printers, and desktop PC motherboard designs requiring stable component supply and long-term manufacturability.
Supply support for LM324PWRE4 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 delivering analog and embedded processing solutions with over 50 years of op amp innovation and manufacturing excellence.
The LM324PWRE4 belongs to TI's industry-standard general-purpose op amp portfolio, engineered for reliability, ease of use, and broad compatibility in cost-driven industrial, consumer, and computing applications.
FAQ
What is the maximum supply voltage for LM324PWRE4?
The LM324PWRE4 supports an absolute maximum supply voltage of 40V between VCC+ and VCC–, though recommended operation is limited to 3V–36V. Exceeding 36V risks parametric degradation and reduced long-term reliability, especially at elevated temperatures. All electrical characteristics in the datasheet are guaranteed only within the 3V–36V range, and thermal design must account for RθJA = 124.7°C/W in the TSSOP-14 package.
Does LM324PWRE4 support rail-to-rail output?
No, the LM324PWRE4 does not provide rail-to-rail output. Its output swings to within 1.35V of VCC+ (at –50µA load) and to within 100mV of VCC– (at 50µA load). This limitation is inherent to its bipolar input/output stage architecture. For true rail-to-rail output, consider TI's TLV2464 or similar CMOS alternatives-but note these require higher supply current and lack the LM324PWRE4's 36V tolerance.
Can LM324PWRE4 replace LM324N in existing PDIP-based designs?
LM324PWRE4 cannot be used as a direct physical replacement for LM324N (PDIP-14) due to incompatible packages-TSSOP-14 vs. PDIP-14-but it is a functional and pinout-compatible drop-in replacement at the schematic level. Layout redesign is required to accommodate the smaller 5mm × 6.4mm TSSOP footprint and 0.65mm pitch. Thermal performance differs significantly (RθJA = 124.7°C/W vs. 83.5°C/W), so power dissipation must be re-evaluated.
What is the input bias current specification for LM324PWRE4 over temperature?
The LM324PWRE4 specifies input bias current of –10nA to –35nA at 25°C, and –60nA maximum across the full operating range of –40°C to +85°C. This bipolar-input architecture exhibits predictable, linear temperature dependence-critical for high-impedance applications like photodiode transimpedance amplifiers where bias current directly impacts offset and noise. No additional external compensation is needed to maintain this spec.
Is LM324PWRE4 qualified for automotive applications?
The LM324PWRE4 is not AEC-Q200 qualified and is rated for –40°C to +85°C operation, which falls short of automotive Grade 2 (–40°C to +105°C) or Grade 1 (–40°C to +125°C) requirements. For automotive use, TI recommends the LM2902PWRE4 variant, which shares the same PW package and pinout but is characterized and tested across –40°C to +125°C and meets AEC-Q100 stress testing. LM324PWRE4 remains suitable for industrial and consumer applications within its specified temperature range.
LM324PWRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- -
- 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
LM324PWRE4 FAQ
1.How can I place an order for LM324PWRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM324PWRE4 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 LM324PWRE4 reliable?
The price and inventory of LM324PWRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM324PWRE4 is usually 5 days.
3.What payment methods are accepted for LM324PWRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM324PWRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM324PWRE4?
LM324PWRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM324PWRE4 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 LM324PWRE4?
For technical support, including LM324PWRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM324PWRE4 requirements.
6.How does Aetrix verify that LM324PWRE4 is sourced from the original manufacturer or authorized distributors?
All LM324PWRE4 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 LM324PWRE4 meets industry standards.
7.What is the process for return or replacement of LM324PWRE4?
All LM324PWRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LM324PWRE4, 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 LM324PWRE4 part is unused and in its original packaging.
Return procedure for LM324PWRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM324PWRE4 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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