LM393 IC datasheet SMD

LM393 SMD IC Description:

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 LM393B 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.


  •  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
  •  Differential input voltage range equal to maximum rated supply voltage: ±38 V
  •  Low output saturation voltage
  •  Output compatible with TTL, MOS, and CMOS

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