The LM393B and LM2903B devices are the next generation versions of the industry standard LM393 and LM2903 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.

The and LM2903B can drop-in replace the LM293, LM393 and LM2903, for both “A” and “V” grades. All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage.

Features: 

•  NEW LM393B and LM2903B
•  Improved specifications of B-version
  – Maximum rating: up to 38 V
  – ESD rating (HBM): 2k V
  – Low input offset: 0.37 mV
  – Low input bias current: 3.5 nA
  – Low supply-current: 200 µA per comparator
  – Faster response time of 1 µsec
  – Extended temperature range for LM393B
  – Available in tiny 2 x 2mm WSON package
•  B-version is drop-in replacement for LM293,
  LM393 and LM2903, A and V versions
•  Common-mode input voltage range includes
  ground

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