LTC1440
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LTC1440

Ultralow Power Single/Dual Comparator with Reference

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Info: : PRODUCTION tooltip
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Part Details
Part Models 14
1ku List Price Starting From $1.79
Features
  • Ultralow Quiescent Current: 2.1µA Typ
  • Reference Output Drives 0.01µF Capacitor
  • Adjustable Hysteresis
  • Wide Supply Range:
    • Single: 2V to 11V
    • Dual: ±1V to ±5.5V
  • Input Voltage Range Includes the Negative Supply
  • TTL/CMOS Compatible Outputs
  • 12µs Propagation Delay with 10mV Overdrive
  • No Crowbar Current
  • 40mA Continuous Source Current
  • Pin Compatible Upgrades for MAX921/931
  • 3mm × 3mm × 0.75mm DFN Package
Additional Details
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The LTC1440 is an ultralow power comparator with a built-in voltage reference. The comparator features less than 4.0µA supply current over temperature. The internal reference is 1.182V with ±1% accuracy. The LTC1440 has programmable hysteresis and TTL/CMOS outputs that sink and source current. The reference output can drive a bypass capacitor of up to 0.01µF without oscillation.

The comparators operate from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. Comparator hysteresis is easily programmed by using two resistors and the HYST pin. Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally happens when the comparator changes logic states, the power supply glitches are eliminated.

The LTC1440 is available in a 3mm × 3mm × 0.75mm DFN package, as well as 8-pin PDIP and SO-8.

Applications

  • Battery-Powered System Monitoring
  • Threshold Detectors
  • Window Comparators
  • Oscillator Circuits
Part Models 14
1ku List Price Starting From $1.79

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1440CMS8#PBF

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LTC1440CMS8#TRPBF

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LTC1440IMS8#PBF

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LTC1440IMS8#TRPBF

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Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LTC1440CN8#PBF

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LTC1440IN8#PBF

PRODUCTION

Oct 12, 2022

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1440CS8#PBF

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LTC1440CS8#TRPBF

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LTC1440IS8#PBF

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LTC1440IS8#TRPBF

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Jun 16, 2021

- 21_0026

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC1440CS8#PBF

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LTC1440CS8#TRPBF

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LTC1440IS8#PBF

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LTC1440IS8#TRPBF

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 3, 2020

- 20_0128

arrow down

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1440CMS8#PBF

PRODUCTION

LTC1440CMS8#TRPBF

PRODUCTION

LTC1440IMS8#PBF

PRODUCTION

LTC1440IMS8#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LTC1440CN8#PBF

PRODUCTION

LTC1440IN8#PBF

PRODUCTION

Oct 12, 2022

- 22_0255

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1440CS8#PBF

PRODUCTION

LTC1440CS8#TRPBF

PRODUCTION

LTC1440IS8#PBF

PRODUCTION

LTC1440IS8#TRPBF

PRODUCTION

Jun 16, 2021

- 21_0026

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC1440CS8#PBF

PRODUCTION

LTC1440CS8#TRPBF

PRODUCTION

LTC1440IS8#PBF

PRODUCTION

LTC1440IS8#TRPBF

PRODUCTION

Software and Part Ecosystem

Software and Part Ecosystem

Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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