LM319:Dual, high speed comparator

These products are precision high-speed dual comparators designed to operate over a wide range of supply voltages down to a single 5 V logic supply and ground. They feature low input currents and high gains.

The open collector of the output stage makes them compatible with transistor-transistor logic (TTL) as well as capable of driving lamps and relays at currents up to 25 mA.

Although designed primarily for applications requiring operation from digital logic supplies, these comparators are fully specified for power supplies up to ±15 V.

They feature faster response times than the LM111 at the expense of higher current consumption. However, the high speed, wide operating voltage range and low package count make the LM119, LM219, and LM319 much more versatile.

Key Features

  • Two independent comparators
  • Supply voltage: +5 V to ±15 V
  • Typically 80 ns response time at ±15 V
  • Minimum fan-out of two each side
  • Maximum input current of 1 μA over the operating temperature range
  • Inputs and outputs can be isolated from system ground
  • High common-mode slew rate
Product Specifications
DescriptionVersionSize
DS0434: High-speed dual comparators3.0972 KB
Application Notes
DescriptionVersionSize
AN4071: Introduction to comparators, their parameters and basic applications1.0482 KB
User Manuals
DescriptionVersionSize
UM0065: MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS1.0120 KB
HW Model & CAD Libraries
DescriptionVersionSize
LM119/LM219/LM319 PSpice model1.01 KB
ST library for all op amps and comparators SPICE models2.045 KB
Presentations
DescriptionVersionSize
VMA automotive applications1 MB
Selection Guides
DescriptionVersionSize
ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance.1.0818 KB
Brochures
DescriptionVersionSize
Operational amplifiers: performance, robust and advanced technology2 MB
Products and Solutions for Factory Automation and Control1.03 MB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
LM319DTSO-14Tape And Reel0700.391000NECEAR99MOROCCO
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
LM319DTSO-14IndustrialEcopack3
High-speed dual comparators LM319
circuit_diagram_2155_thumbnail.png LM319
Introduction to comparators, their parameters and basic applications LM2901H
MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS TSV631
MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS LM319
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1