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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 14SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：DTL, Open-Collector, Open-Emitter, RTL, TTL
- Voltage - Supply, Single/Dual (±)：5V ~ 36V, ±2.5V ~ 18V
- Voltage - Input Offset (Max)：1mV @ ±15V
- Current - Input Bias (Max)：0.5µA @ ±15V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：12.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Grade：-
- Qualification：-
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Overview
The LM319AM is a high-speed dual voltage comparator manufactured by Texas Instruments. It features two independent comparators within a single package, designed for rapid signal comparison and threshold detection. The device operates with an open-collector output configuration, allowing compatibility with various logic families including RTL, DTL, and TTL. It supports a wide supply voltage range from 5V to 36V single supply or ±2.5V to ±18V dual supply. The typical response time is 80ns at ±15V supply, ensuring fast switching capabilities suitable for demanding analog signal processing applications.
Feature Summary
- High-speed operation with short propagation delay for rapid signal threshold detection
- Open-collector outputs compatible with multiple logic families without additional circuitry
- Wide single or dual power supply voltage flexibility for diverse system integration
Applications
- Fast A/D converter interface circuits
- Waveform generation and shaping systems
- Industrial sensor level detection and alarm triggering
Procurement Notes
Verify the specific suffix 'AM' against the manufacturer's current datasheet to confirm the exact temperature grade and package variant. Ensure the ordering part number matches the required commercial temperature range specifications. Confirm RoHS compliance status through official documentation before procurement.
Selection Notes
Select this component when high-speed differential input comparison is required alongside open-collector output flexibility. Consider the 80ns response time for timing-critical applications. Evaluate the wide supply voltage tolerance against system power constraints. Verify that the open-collector nature aligns with downstream logic requirements.
Part Context
This device belongs to the LM119/LM219/LM319 family of precision high-speed dual comparers. The LM319 series specifically targets commercial temperature ranges, distinguishing it from the military-grade LM119 and industrial-grade LM219 variants. All members share identical pinouts and electrical characteristics except for operating temperature limits.
Replacement Considerations
LM319N-NOPB
FAQ
What is the maximum output current capability?
The open-collector outputs can sink up to 25 mA, allowing direct driving of loads such as relays or indicators.
How does the input offset voltage affect performance?
The device specifies a maximum input offset voltage of 8 mV, which determines the minimum voltage difference required to switch the output state accurately.
