The LTC1443IS is an ultralow power, quad comparator with reference
peculiarity
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Ultra-low quiescent current:8.5μA (maximum)
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The reference output can be driven0.01μFcapacitor
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Adjustable hysteresis(LTC1444 / LTC1445)
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Wide power supply range
Single channel:2Vreach11V
Dual channel:±1Vreach ±5.5V
- The input voltage range includes the negative supply
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TTL / CMOSCompatible output
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Propagation delay: Typical12μs (10mVOverdriven)
- No transient open current
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40mAContinuous supply current
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MAX924is a pin-compatible upgrade device(LTC1443)
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lichen(5mm x 4mm x 0.8mm) DFNencapsulation
description
LTC®1443 / LTC1444 / LTC1445is an ultra-low power quad comparator with a built-in voltage reference. These comparators haveof supply current(Over the entire temperature range), an internal benchmark(LTC1443for1.182V±1%whereasLTC1444 / LTC1445is1.221V±1%), programmable hysteresis(LTC1444 / LTC1445)and those that can absorb and supply currentTTL / CMOSoutput(LTC1443 / LTC1445aboutLTC1444is an open-drain output)。 The reference output can drive a UP GUUM0.01μFof bypass capacitors without oscillation.
Comparator adoption2Vreach11VSingle operating power supply or±1Vreach±5.5VDual operating power supplies(LTC1443)。 Comparator hysteresis can easily be used with two resistors and HYSTPins(LTC1444 / LTC1445)to set it up. The input of each comparator operates from the negative supply to the positive supply1.3VWithin.LTC1443 / LTC1445The comparator output stage can supply up to continuously40mAof current. Power supply interference is eliminated by eliminating cross-conduction currents that are common when comparators change logic states.
LTC1443 / LTC1444 / LTC1445adopt16PinsSO、PDIPand5mm x 4mm DFNEncapsulation.