1 Features
• NEW LM393B and LM2903B
• Improved specifications of B-version
– Maximum rating: up to 38V
– ESD rating (HBM): 2kV
– Low input offset: 0.37mV
– Low input bias current: 3.5nA
– Low supply-current: 200μA per comparator
– Faster response time of 1μsec
– 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
• Differential input voltage range equal to maximumrated
supply voltage: ±38 V
• Low output saturation voltage
• Output compatible with TTL, MOS, and CMOS

2 Applications
• Vacuum robot
• Single phase UPS
• Server PSU
• Cordless power tool
• Wireless infrastructure
• Applicances
• Building automation
• Factory automation & control
• Motor drives
• Infotainment & cluster

3 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.