Congratulations On Your Successful Submission
Submission Failure
LM239AD
Analog Comparators Quad Differential ComparatorLM239AD
Analog Comparators Quad Differential Comparator
-
Manufacturer Part # : LM239AD
-
Package/Case: SOIC-14
-
Brand: Texas Instruments
-
Product Categories : Comparators
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
WireTransfer
Paypal
CreditCard
WesternUnion
MoneyGram
Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
Example
Tape and Reel
Cut Tape
Tube or Tray
LM239AD DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $1.482 | $1.48 |
| 10 | $1.285 | $12.85 |
| 30 | $1.164 | $34.92 |
| 100 | $1.038 | $103.80 |
| 500 | $0.983 | $491.50 |
| 1000 | $0.958 | $958.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
Texas Instruments' LM239AD is a quad voltage comparator IC designed for high-speed operation and low input offset voltage. With four independent voltage comparators and a wide power supply voltage range, it is suitable for a variety of precision measurement and control applications. The IC's low input bias currents and offset currents ensure high accuracy and stability, while its open-collector output stage allows for convenient interfacing with other circuits, adding flexibility to system design. The LM239AD also features a wide common-mode input voltage range, including ground, enabling versatile configurations to meet different application requirements. Additionally, its robust design and availability in various package options make it a reliable choice for harsh environmental conditions and diverse assembly requirements
Key Features
- Improved thermal management
- Simplified circuit design
- Increase device lifespan
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Number of channels | 4 | Output type | Open-collector |
| Propagation delay time (µs) | 1.3 | Vs (max) (V) | 36 |
| Vs (min) (V) | 2 | Vos (offset voltage at 25°C) (max) (mV) | 3 |
| Iq per channel (typ) (mA) | 0.2 | Input bias current (±) (max) (nA) | 50 |
| Rail-to-rail | Out | Rating | Catalog |
| Operating temperature range (°C) | -25 to 85 | Features | Standard comparator |
| VICR (max) (V) | 34.5 | VICR (min) (V) | 0 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM239AD?
The LM239AD is a quad differential comparator IC designed by Texas Instruments. It is commonly used in applications that require comparison of analog signals, such as voltage level detection, zero-crossing detection, and waveform shaping.
How Does LM239AD Work?
The LM239AD works by comparing the voltages present at its four input pins and providing a high or low output based on the comparison results. It has open-drain outputs which can be pulled up to a desired voltage level for compatibility with different logic families. The device is designed for use in both single-supply and dual-supply voltage systems.
How Many Pins does LM239AD have and What are the Functions of the Pinout Configuration?
The LM239AD is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VCC+: Positive power supply pin.
- VCC-: Negative power supply pin.
- IN1, IN2, IN3, IN4: Differential input pins for comparators 1, 2, 3, and 4.
- OUT1, OUT2, OUT3, OUT4: Output pins for comparators 1, 2, 3, and 4.
- GND: Ground pin.
What are the Pros and Cons of LM239AD?
Pros:
- Quad Comparator: Contains four independent comparators in a single package, providing cost and space savings.
- Wide Supply Voltage Range: Compatible with a wide range of supply voltages, making it versatile for various applications.
- Open-Drain Outputs: Allows for flexible output configurations and interface with different logic levels.
- Low Input Offset Voltage: Provides accurate comparison of input signals with minimal offset error.
Cons:
- Propagation Delay: May have non-negligible propagation delay which needs to be considered in timing-critical applications.
- Noisy Environment Sensitivity: Being a comparator, it may be susceptible to noise interference in noisy environments.
- Complex Pinout: The 14-pin SOIC package may require careful attention to pin connections for proper functionality.
Are There Any Equivalents/Alternatives to LM239AD for Recommendation?
- The LM339 from Texas Instruments is a similar quad comparator IC that can be used as an alternative to the LM239AD.
- Alternatives to the LM239AD include the LM2901 from Texas Instruments and the MC3302 from ON Semiconductor.
Recommend Parts
-
![LM301AP]()
3,981 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LMV772MA]()
LMV772MA
$0.409 With its wide operating temperature range of -40 to 125 degrees Celsius
Brand: Texas Instruments Package/Case: SOIC-8
7,876 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM4991MA]()
6,780 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM358H]()
LM358H
$2.013 With its low noise and high input impedance, the LM358H is a versatile choice for precision signal processing and amplification
Brand: Texas Instruments Package/Case: TO-99-8
4,775 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM7322MAX]()
Op Amp with Dual High Output Current Amplifiers
Brand: Texas Instruments Package/Case: SOIC-8
5,771 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM7322MA]()
5,189 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM4701T]()
3,320 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM324LVIPWR]()
Operational Amplifiers - Op Amps Quad, 5.5-V, 1-MHz, 3-mV offset voltage operational amplifier 14-TSSOP -40 to 125
Brand: Texas Instruments Package/Case: TSSOP-14
3,370 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LMV324AIDR]()
LMV324AIDR
$0.074 Quad, 5.5-V, 1-MHz, 4-mV offset voltage, RRO operational amplifier 14-SOIC -40 to 125
Brand: Texas Instruments Package/Case: SOIC-14
3,625 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM358BIPWR]()
LM358BIPWR
$0.059 Dual, 36-V, 1.2-MHz, 3-mV offset voltage operational amplifier with -40°C to 85°C operation 8-TSSOP -40 to 85
Brand: Texas Instruments Package/Case: TSSOP-8
7,756 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM2904BIDGKR]()
LM2904BIDGKR
$0.054 Dual, 36-V, 1.2-MHz operational amplifier with -40°C to 125°C operation 8-VSSOP -40 to 125
Brand: Texas Instruments Package/Case: VSSOP-8
3,326 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LM239PW]()
Analog Comparators Quad Differential Comparator
Brand: Texas Instruments Package/Case: TSSOP-14
7,985 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LMC6484IM]()
LMC6484IM
$1.052 This amplifier has a supply voltage range of 15.5V and comes in a 14-pin SOIC package
Brand: Texas Instruments Package/Case: SOIC (D)-14
3,712 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LMC6484IMX/NOPB]()
Operational Amplifiers - Op Amps CMOS QUAD RRIO OP AMP
Brand: Texas Instruments Package/Case: SOIC-14
6,727 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LMC6482IMM]()
LMC6482IMM
$0.911 Op Amp Dual Precision Amplifier R-R I/O ±7.75V/15.5V 8-Pin VSSOP T/R
Brand: Texas Instruments Package/Case: VSSOP-8
7,680 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![LMC6482IM]()
LMC6482IM
$0.659 SOP Package Operational Amplifier for precise electronic circuit designs
Brand: Texas Instruments Package/Case: SOIC (D)-8
3,397 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
