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The LTC331/393 single-/dual- channel comparators are drop-in, pin-for-pin compatible replacements for the LMV331/LMV393, and low-voltage versions of TL331/LM393. The devices with open-drain output offer the ultimate combination of high speed (100 ns propagation delay) and very low power consumption (37 μA), and feature such as rail-torail inputs, low offset voltage (typically 1 mV), large output drive current, and a wide range of supply voltages from 1.8 V to 5.5 V. The devices are very easy to implement in a wide variety of applications where require critical response time, power-sensitive, lowvoltage, and/or tight board space.
Advantages of the LTC331/393 also include the added benefit of internal hysteresis provide noise immunity, preventing output oscillations even with slow-moving input signals. Designed with the most modern techniques, the LTC331/393 achieve superior performance over BiCMOS or bipolar versions on the market.
The LTC331 (single) is available in both SOT23-5L and SC70-5L packages. The LTC393 (dual) is offered in DFN-8L, SOIC-8L, MSOP-8L and TSSOP-8L packages. All devices are rated over -40 ℃ to +85 ℃ industrial temperature range.
◼ Micro-power Operating Current (37 μA) Preserves Battery Power
◼ Fast 100 ns Propagation Delay (100-mV Overdrive)
◼ Single 1.8 V to 5.5 V Supply Voltage Range
– Can be Powered From the Same 1.8V/2.5V/3.3V/5V System Rails
◼ Rail-to-Rail Input
◼ Open-Drain Output Current Drive: 30 mA Typically at 5V Supply
◼ Internal Hysteresis for Clean Switching
◼ Internal RF/EMI Filter
◼ Operating Temperature Range: -40 ℃ to +85 ℃
◼ Consumer Accessories
◼ Portable and Battery-Powered Devices
◼ Alarms and Monitoring Circuits
◼ Threshold Detectors and Discriminators
◼ Logic Level Shifting or Translation
◼ Zero-Crossing Detectors
◼ Window Comparators
◼ IR Receivers
◼ Line Receivers
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