Prodotti > Circuiti integrati (CI) > Circuiti integrati comparatori > LTC1445IS#PBF

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Fabbricante : Analog Devices, Inc
Pacchetto : SOP16
Tipologia di produzione : Voltage References ; Reference plus Comparator or Amplifier
Datasheet: LTC1445IS#PBF Datasheet (PDF)
RoHs Status: Pb-free Halide free
Stock: 333


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LTC1445IS#PBF Dettagli del prodotto

The LTC1443/LTC1444/LTC1445IS#PBF are ultralow power quad comparators with a built-in reference. The comparators feature less than 8.5μA supply current over temperature, an internal reference (1.182V ±1% for LTC1443 or 1.221V ±1% for LTC1444/LTC1445), programmable hysteresis (LTC1444/LTC1445) and TTL/CMOS output (LTC1443/ LTC1445) that sinks and sources current (open-drain output for LTC1444). 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 (LTC1443). Comparator hysteresis is easily programmable using two resistors and the HYST pin (LTC1444/LTC1445). Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The LTC1443/LTC1445IS#PBF comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally happens when the comparator changes logic states, power supply glitches are eliminated.

The LTC1443/LTC1444/LTC1445IS#PBF are available in the 16-pin SO, PDIP and DFN packages.



  • Ultralow Quiescent Current: 8.5μA Max
  • Reference Output Drives 0.01μF Capacitor
  • Adjustable Hysteresis (LTC1444/LTC1445)
  • Wide Supply Range Single: 2V to 11V Dual: ±1V to ±5.5V
  • Input Voltage Range Includes the Negative Supply
  • TTL/CMOS Compatible Outputs
  • Propagation Delay: 12μs (Typ) (10mV Overdrive)
  • No Crowbar Current
  • 40mA Continuous Source Current
  • Pin Compatible Upgrades for MAX924 (LTC1443)
  • Low Profile (5mm × 4mm × 0.8mm) DFN Package


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

LTC1445IS#PBF Pinout
(Immagine: Pinout)

LTC1445IS#PBF Block Diagram
(Immagine: Diagram)

Parametri tecnici

  • Type
  • with Voltage Reference
  • Number of Elements
  • 4
  • Output Type
  • Voltage Supply, Single/Dual (??)
  • 2V ~ 11V, ??1V ~ 5.5V
  • Voltage Input Offset (Max)
  • 10mV @ 5V
  • Current Output (Typ)
  • 0.015mA @ 5V
  • Current Quiescent (Max)
  • 8.5??A
  • CMRR, PSRR (Typ)
  • 80dB CMRR, 80dB PSRR
  • Propagation Delay (Max)
  • 12??s
  • Hysteresis
  • 50mV
  • Operating Temperature
  • -40??C ~ 85??C
  • Package / Case
  • 16-SOIC (0.154, 3.90mm Width)
  • Mounting Type
  • Surface Mount
  • Supplier Device Package
  • 16-SOIC

LTC1445IS#PBF Datasheet

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Modelli Fabbricante Pacchetto Descrizione
LTC1445CS#PBF ADI 16-SOIC (0.154, 3.90mm Width) IC COMP W/REF LOWPWR QUAD 16SOIC

LTC1445IS#PBF Related speciale

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Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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