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
  

• 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