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LM319D
Dual voltage comparator | IC COMPARATOR DUAL HS 14-SOICLM319D
Dual voltage comparator | IC COMPARATOR DUAL HS 14-SOIC
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Manufacturer Part # : LM319D
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Package/Case: SOP-14
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Part Status : Active
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Brand: STMicroelectronics
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Product Categories : Comparators
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Service & Packaging
Service & Packaging
About After Sales Service
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Initiate the application within 90 days from the shipment date.
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LM319D DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The LM319 series are precision high-speed dual comparators fabricated on a single monolithic chip. They are designed to operate over a wide range of supply voltages down to a single 5V logic supply and ground. Further, they have higher gain and lower input currents than devices like the µA710. The uncommitted collector of the output stage makes the LM319 compatible with RTL, DTL, and TTL as well as capable of driving lamps and relays at currents up to 25mA. Although designed primarily for applications requiring operation from digital logic supplies, the LM319 series are fully specified for power supplies up to ±15V. It features faster response than the LM111 at the expense of higher power dissipation. However, the high-speed, wide operating voltage range and low package count make the LM319 much more versatile than older devices like the µA711.FEATURES • Two independent comparators • Operates from a single 5V supply • Typically 80ns response time at ±15V • Minimum fanout of 3 (each side) • Maximum input current of 1µA over temperature • Inputs and outputs can be isolated from system ground • High common-mode slew rate
Key Features
- Two independent comparators
- Operates from a single 5V supply
- Typically 80ns response time at ±15V
- Minimum fanout of 3 (each side)
- Maximum input current of 1µA over temperature
- Inputs and outputs can be isolated from system ground
- High common-mode slew rate
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | STMicroelectronics | Product Category ! | Linear Comparators |
| Series | - | Type | General Purpose |
| Packaging ! | Tube Alternate Packaging | Package-Case | Surface Mount |
| Operating-Temperature | Open-Collector, Open-Emitter, TTL | Mounting-Type | 2 Elements |
| Output-Type | 8mV @ ±15V | Supplier-Device-Package | 12.5mA |
| Voltage-Supply-Single-Dual | - |
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 LM319D?
The LM319D is a high-speed dual voltage comparator designed by Texas Instruments. It is ideal for applications requiring fast response times and low input offset voltage, such as pulse and waveform generators, precision voltage comparators, and digital-to-analog converters.
How Does LM319D Work?
The LM319D operates as a high-speed voltage comparator, comparing two input voltage signals and providing a digital output based on their relative levels. It features a fast response time and low input offset voltage, making it suitable for high-speed digital systems and precision measurement applications.
How Many Pins does LM319D have and What are the Functions of the Pinout Configuration?
The LM319D 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.
- IN+ (1-): Non-inverting input pin for comparator 1.
- IN- (1-): Inverting input pin for comparator 1.
- OUT (1-): Output pin for comparator 1.
- IN+ (2-): Non-inverting input pin for comparator 2.
- IN- (2-): Inverting input pin for comparator 2.
- OUT (2-): Output pin for comparator 2.
What are the Pros and Cons of LM319D?
Pros:
- High Speed: Operates at high speed for time-critical applications.
- Low Input Offset Voltage: Provides accurate comparison of input signals.
- Wide Supply Voltage Range: Allows operation from a wide range of power supply voltages.
- Temperature Stability: Features good temperature stability for consistent performance across varying thermal conditions.
Cons:
- Power Consumption: May have relatively higher power consumption compared to low-power comparators.
- Noise Sensitivity: High-speed comparators may be more sensitive to input noise and fluctuations.
Are There Any Equivalents/Alternatives to LM319D for Recommendation?
- The LM311 from Texas Instruments is a single high-speed voltage comparator similar to the LM319D.
- Alternatives to the LM319D include the LT1716 from Analog Devices and the MAX902 from Maxim Integrated.
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