LTC1441 - Ultralow Power Single/Dual Comparator

Features

  • Ultralow Quiescent Current: 3.5µA Typ
  • Reference Output Drives 0.01µF Capacitor
  • 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 MAX922
  • 8-pin DIP and SO-8 Package

Typical Application

LTC1441 Typical Application
LTC1441 Typical Application

Description

The LTC1441 is an ultralow power dual comparator, featuring less than 5.7µA supply current over temperature.  The TTL/CMOS outputs both sink and source current.

The comparators operate from a single 2V to 11V supply or a dual ±1V to ±5.5V supply.  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 LTC1441 is available in an 8-pin PDIP and SO package.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC1441CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LTC1441CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LTC1441CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LTC1441IN8#PBF N-8 N I 05-08-1510 (N8) Yes
LTC1441IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LTC1441IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes


LTC1441 Package Drawing
LTC1441 Package Drawing
LTC1441 Package Drawing
LTC1441 Package Drawing
LTC1441 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC1441CN8#PBF N-8 C $2.15 $1.80 Yes
LTC1441CS8#PBF SO-8 C $2.15 $1.80 Yes
LTC1441CS8#TRPBF SO-8 C $1.86 Yes
LTC1441IN8#PBF N-8 I $2.55 $2.15 Yes
LTC1441IS8#PBF SO-8 I $2.55 $2.15 Yes
LTC1441IS8#TRPBF SO-8 I $2.21 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Battery-Powered System Monitoring
  • Threshold Detectors
  • Window Comparators
  • Oscillator Circuits

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

Models for the following parts are available in LTspice:
LTC1441

Technical Support