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LTC1445


Part Number LTC1445
Manufacturer Linear Technology
Title Ultralow Power Quad Comparators
Description LTC1443/LTC1444/LTC1445 Ultralow Power Quad Comparators with Reference FEATURES s s DESCRIPTIO ® s s s s s s s s Ultralow Quiescent Current: 8...
Features s s DESCRIPTIO ® s s s s s s s s Ultralow Quiescent Current: 8.5µA Max Wide Supply Range Single: 2V to 11V Dual: ± 1V to ± 5.5V Input Voltage Range Includes the Negative Supply Reference Output Drives 0.01µF Capacitor Adjustable Hysteresis (LTC1444/LTC1445) TTL/CMOS Compatible Outputs Propagation...

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LTC1440 : LTC1440/LTC1441/LTC1442 Ultralow Power Single/Dual Comparator with Reference U U FEATURES ■ Ultralow Quiescent Current: 2.1µA Typ (LTC1440) ■ Reference Output Drives 0.01µF Capacitor ■ Adjustable Hysteresis (LTC1440/LTC1442) ■ 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 MAX921/922/923 ■ 3mm x 3mm x 0.75mm DFN Package (LTC1440) U APPLICATIO S ■ Battery-Powered System Monitoring ■ Threshold Detectors ■ Window Comparators ■ Oscillator Circuits , LT, LTC and LTM are registere.

LTC1441 : LTC1440/LTC1441/LTC1442 Ultralow Power Single/Dual Comparator with Reference U U FEATURES ■ Ultralow Quiescent Current: 2.1µA Typ (LTC1440) ■ Reference Output Drives 0.01µF Capacitor ■ Adjustable Hysteresis (LTC1440/LTC1442) ■ 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 MAX921/922/923 ■ 3mm x 3mm x 0.75mm DFN Package (LTC1440) U APPLICATIO S ■ Battery-Powered System Monitoring ■ Threshold Detectors ■ Window Comparators ■ Oscillator Circuits , LT, LTC and LTM are registere.

LTC1442 : LTC1440/LTC1441/LTC1442 Ultralow Power Single/Dual Comparator with Reference U U FEATURES ■ Ultralow Quiescent Current: 2.1µA Typ (LTC1440) ■ Reference Output Drives 0.01µF Capacitor ■ Adjustable Hysteresis (LTC1440/LTC1442) ■ 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 MAX921/922/923 ■ 3mm x 3mm x 0.75mm DFN Package (LTC1440) U APPLICATIO S ■ Battery-Powered System Monitoring ■ Threshold Detectors ■ Window Comparators ■ Oscillator Circuits , LT, LTC and LTM are registere.

LTC1443 : The LTC®1443/LTC1444/LTC1445 are ultralow power quad comparators with a built-in reference. The comparators feature less than.

LTC1444 : LTC1443/LTC1444/LTC1445 Ultralow Power Quad Comparators with Reference FEATURES s s DESCRIPTIO ® s s s s s s s s Ultralow Quiescent Current: 8.5µA Max Wide Supply Range Single: 2V to 11V Dual: ± 1V to ± 5.5V Input Voltage Range Includes the Negative Supply Reference Output Drives 0.01µF Capacitor Adjustable Hysteresis (LTC1444/LTC1445) TTL/CMOS Compatible Outputs Propagation Delay: 12µs (Typ) (10mV Overdrive) No Crowbar Current 40mA Continuous Source Current Pin Compatible Upgrades for MAX924 (LTC1443) The LTC 1443/LTC1444/LTC1445 are ultralow power quad comparators with a built-in reference. The comparators feature less than 8.5µA supply current over temperature, an internal reference .

LTC1446 : LTC1446/LTC1446L Dual 12-Bit Rail-to-Rail Micropower DACs in SO-8 U U FEATURES s Dual DACs with 12-Bit Resolution s SO-8 Package s Rail-to-Rail Output Amplifiers s Internal Reference s Maximum DNL Error: 0.5LSB s 3V Operation (LTC1446L): ICC = 650µA Typ s 5V Operation (LTC1446): ICC = 1000µA Typ s Settling Time: 14µs to ±0.5LSB s Power-On Reset Clears DACs to 0V s 3-Wire Cascadable Serial Interface with 500kHz Update Rate s Schmitt Trigger On Input Allows Direct Optocoupler Interface s Low Cost U APPLICATIO S s Digital Calibration s Industrial Process Control s Automatic Test Equipment s Cellular Telephones DESCRIPTIO The LTC®1446/LTC1446L are dual 12-bit digital-to-analog converters (DAC.

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LTC1448 : The LTC®1448 is a dual rail-to-rail voltage output, 12-bit digital-to-analog converter (DAC). It includes rail-to-rail output buffer amplifiers and an easy-to-use 3-wire serial interface. It is available in 8-pin SO and PDIP packages and provides the smallest footprint of any dual 12-bit DAC. The LTC1448 has an external reference input pin (REF) and its outputs swing from 0V to REF. The REF input can be tied to VCC providing rail-to-rail operation from supplies of 2.7V to 5.5V. (For devices with internal reference see the LTC1446 data sheet.) The LTC1448 dissipates 2.5mW from a 5V supply. The low power supply current and the small SO-8 package make the LTC1448 ideal for battery-powered appli.




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