UPC271, 311

R03DS0151EJ0100 Rev.1.00

Page 7 of 8

2019.10.1

USE WITH PRECAUTIONS

 Power Supply (Dual Power Supply / Single Power Supply)

The comparator operates when a predetermine voltage is applied between V + - V - . Therefore, while it

operates from a single power supply (V - = GND), it is not possible to operate the input near GND. So please

be careful of the common-mode input voltage range.

 Ratings of input pin voltage

When the voltage of input pin exceeds the absolute maximum rating, the parasitic diode within the IC may

conduct, causing characteristics degradation or damage. Therefore, please use the input pin within the

power supply voltage range. In addition, if it exceeds the power supply voltage, it is recommended to make

a clamping circuit using a diode with low forward voltage (e.g.: Schottky diode) as protection.

 Range of common-mode input voltage

When the power supply voltage does not meet the condition of electrical characteristics, the range of

common-mode input voltage is as follows.

VICM (TYP.) : V - +0.3 to V + -1.2 [V] (TA = 25

C)

During designing, do include some margin by considering characteristics variation and temperature

characteristics, etc.

 Handling of ICs

When stress is added to the ICs due to warpage or bending of a board, the characteristic may fluctuate due

to piezoelectric (piezo) effect. Therefore, please pay attention to warpage or bending of a board.