ST7LITE49K2 datasheet(229/245 Pages) STMICROELECTRONICS

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ST7LITE49K2

Electrical characteristics

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13.11.1

Amplifier output offset variation

The offset is quite sensitive to temperature variations. In order to ensure a good reliability in

measurements, the offset must be recalibrated periodically i.e. during power on or whenever

the device is reset depending on the customer application and during temperature variation.

The table below gives the typical offset variation over temperature:

13.12

Analog comparator characteristics

Table 104.

Offset variation at TA = 25 °C

Typical offset variation (LSB)

Unit

-45

-20

+25

+90

°C

-12

-7

+13

LSB

Table 105.

Analog comparator characteristics

Symbol

Parameter

Min

Typ

Max

Unit

VDDA

Supply range

4.5

5.5

VIN

Comparator input voltage range

VDDA

Temp

Temperature range

-40

125

°C

Voffset

Comparator offset error

IDD(CMP)

Analog Comparator Consumption

120

µA

Analog Comparator Consumption

during power-down

200

tpropag

Comparator propagation delay

tstartup

Startup filter duration

5002)

tstab

Stabilisation time

500

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