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Texas Instruments LM324N
- Part No.:
- LM324N
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
LM324N.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Payment:
- Shipping:
Product details
What Is an TI LM324N?
The Texas Instruments LM124N consists of four independent, high-gain, internally frequency compensated operational amplifiers designed to operate from a single power supply over a wide range of voltages. Operation from split-power supplies is also possible and the low-power supply current drain is independent of the magnitude of the power supply voltage. Application areas include transducer amplifiers, DC gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power supply systems. For example, the LM324N can directly operate off of the standard 5-V power supply voltage which is used in digital systems and easily provides the required interface electronics without requiring the additional ±15 V power supplies.
LM124N Features
- Internally frequency compensated for stable unity-gain operation
- High DC voltage gain of 100 dB
- Wide bandwidth of 1 MHz (unity gain), with temperature compensation
- Flexible power supply range:
- Single supply: 3V to 32V
- Dual supply: ±1.5V to ±16V
- Very low supply current drain: 700 µA, essentially independent of supply voltage
- Low input bias current: 45 nA, temperature compensated
- Low input offset voltage: 2 mV, and offset current of 5 nA
- Input common-mode voltage range includes ground
- Differential input voltage range equal to power supply voltage
- Large output voltage swing: from 0V to V+ – 1.5V
Pin Configuration and Functions
LM324N IC Pin Configuration
| Pin Name | Pin No. | Type | Description |
| OUTPUT1 | 1 | O | Output, Channel 1 |
| INPUT1− | 2 | I | Inverting Input, Channel 1 |
| INPUT1+ | 3 | I | Noninverting Input, Channel 1 |
| V+ | 4 | P | Positive Supply Voltage |
| INPUT2+ | 5 | I | Noninverting Input, Channel 2 |
| INPUT2− | 6 | I | Inverting Input, Channel 2 |
| OUTPUT2 | 7 | O | Output, Channel 2 |
| OUTPUT3 | 8 | O | Output, Channel 3 |
| INPUT3− | 9 | I | Inverting Input, Channel 3 |
| INPUT3+ | 10 | I | Noninverting Input, Channel 3 |
| GND | 11 | P | Ground or Negative Supply Voltage |
| INPUT4+ | 12 | I | Noninverting Input, Channel 4 |
| INPUT4− | 13 | I | Inverting Input, Channel 4 |
| OUTPUT4 | 14 | O | Output, Channel 4 |
LM324N Advantages
- Eliminates the need for dual supplies in many analog designs
- Four op amps in a single, internally compensated package
- Direct sensing near ground with output also capable of reaching ground
- Compatible with all logic families, easing integration
- Low power drain ideal for battery-powered systems
- Input common-mode voltage range and output swing support ground-referenced operation
- Unity gain crossover frequency is temperature compensated
- Input bias current is also temperature compensated, enhancing stability in varying environments
Applications of LM124-N:
The LM124-N is closely related to the widely-used LM324N and shares many practical application scenarios. Below are typical uses of the LM124-N in real-world circuit designs:1. Signal Conditioning
Amplifies low-level signals, filters out noise, and matches impedance-ideal for sensor interfaces and analog front ends.
2. Voltage Comparator
Compares two input voltages and drives logic-level outputs for overvoltage protection, zero-crossing detection, and monitoring.
3. Active Filters
Implements low-pass, high-pass, band-pass, and band-stop filters for frequency selection in audio, communication, and test systems.
4. Voltage Reference & Buffer
Operates as a voltage follower to provide a stable reference for ADCs, DACs, or precision analog subsystems.
5. Oscillator Circuits
Generates square or triangle waves for timing control, waveform synthesis, PWM control, or tone generation.
6. Active Rectifiers
Used in precision full-wave rectifier circuits, achieving better efficiency than passive diode-based designs.
7. Current Sensing
Detects current across shunt resistors in power management, battery monitoring, or motor control, leveraging its low offset specs.
8. Temperature Measurement
Interfaces with thermistors or sensors to build temperature control loops, with accurate signal amplification and linearization.
9. Voltage Regulation
Forms feedback loops in voltage regulator circuits to maintain constant output under load and input fluctuations.
10. Audio Amplifiers
Supports low-power audio applications such as intercoms, alarms, and portable sound systems by acting as a simple amplifier.
Environmental & Export Classifications
| Attribute | Description |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | Not Applicable |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
LM324N Specifications
- Specifications
- FAQ
- Attributes
- Property Value
- Manufacturer
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 45 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.5mA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- 0°C ~ 70°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
1. How to order LM324N on BomKey Electronics?
Currently,, BomKey Electronics only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does BomKey Electronics guarantee that LM324N is from the original manufacturer or authorized agents?
We have a professional and experienced quality control team to strictly verify and test the LM324N. All suppliers must pass our qualification reviews before they can publish their products including LM324N on BomKey Electronics; we pay more attention to the channels and quality of LM324N products than any other customer. We strictly implement supplier audits, so you can purchase with confidence. .
3. Are the LM324N price and inventory displayed accurate?
The price and inventory of LM324N fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?
Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.
Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?
Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.
Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.
Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of LM324N?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM324N we delivered, we will accept the replacement or return of the LM324N only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LM324N.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as LM324N pin diagram, LM324N datasheet?
If you need any after-sales service, please do not hesitate to contact us.
LM324N Comparison
| Images |  |
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| Part No. | LM324N | LM324N/NOPB | LM324NSR | LM324NS | LM324NE4 |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Series | LinCMOS™ | LinCMOS™ | - | - | LinCMOS™ |
| Package/Case | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 14-SOIC (0.209", 5.30mm Width) | 14-SOIC (0.209", 5.30mm Width) | 14-DIP (0.300", 7.62mm) |
| Packaging | Tube | Tube | Tape & Reel (TR) | Bulk | Bulk |
| Product Status | Active | Active | Active | Active | Obsolete |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 |
| Output Type | - | - | - | - | - |
| Slew Rate | - | - | 0.5V/µs | 0.5V/µs | - |
| Gain Bandwidth Product | 1.2 MHz | 1 MHz | 1.2 MHz | 1.2 MHz | 1.2 MHz |
| -3db Bandwidth | - | - | - | - | - |
| Current - Input Bias | 45 nA | 45 nA | 20 nA | 20 nA | 45 nA |
| Voltage - Input Offset | 2 mV | 2 mV | 3 mV | 3 mV | 2 mV |
| Current - Supply | 1.5mA | 1.5mA | 1.4mA (x4 Channels) | 1.4mA (x4 Channels) | 1.5mA |
| Current - Output / Channel | 40 mA | 40 mA | 30 mA | 30 mA | 40 mA |
| Voltage - Supply Span (Min) | 3 V | 3 V | 3 V | 3 V | 3 V |
| Voltage - Supply Span (Max) | 32 V | 32 V | 30 V | 30 V | 32 V |
| Operating Temperature | 0°C ~ 70°C (TJ) | 0°C ~ 70°C (TJ) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TJ) |
| Grade | - | - | - | Automotive | - |
| Qualification | - | - | - | AEC-Q100 | - |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Surface Mount | Through Hole |
| Supplier Device Package | 14-PDIP | 14-PDIP | 14-SO | 14-SO | 14-PDIP |
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