描述 Description

The LM2903B-Q1 device is the next generation version of the industry-standard LM2903-Q1 comparator family. This next generation family provides outstanding value for cost-sensitive applications, with features including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2kV ESD performance with drop-in replacement convenience.

All devices consist of two independent voltage comparators that are designed to operate over a wide range of voltages. Operation from dual supplies also is possible as long as the difference between the two supplies is within 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. The outputs can be connected to other open-collector outputs.

The LM2903-Q1 and LM2903B-Q1 are qualified for the AEC-Q100 Grade 1 temperature range of -40°C to +125°C. The LM2903E-Q1 is Qualified for the Grade 0 extended temperature range of -40°C to +150°C.

特性 Features

? Qualified for automotive applications
? AEC-Q100 qualified with the following results:
? Device temperature grade 0: –40°C to 150°C ambient operating temperature range (LM2903E-Q1)
? Device temperature grade 1: –40°C to 125°C ambient operating temperature range
? Device HBM ESD classification level H1C
? Device CDM ESD classification level C4B

? Improved 2 kV HBM ESD for \"B\" device
? Single supply or dual supplies
? Low supply-current independent of supply voltage 200 uA Typ Per comparator (\"B\" Versions)
? Low input bias current 3.5 nA Typ (\"B\" device)
? Low input offset current 0.5 nA Typ (\"B\" device)
? Low input offset voltage ±0.37 mV Typ (\"B\" device)
? Common-mode input voltage range includes ground
? Differential input voltage range equal to maximum-rated supply voltage ±36 V
? Output compatible with TTL, MOS, and CMOS
? Functional Safety-Capable
? Documentation available to aid functional safety system design