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3.1 Timings

Max. values are measured at −40 °C and 1.08 V supply voltage (based on characterization).

Parameter

Symbol

Conditions

Min.

Typ. Max. Units

Comments

Power-up time

tPU

After hard reset,

VDD ≥ VPOR

-

0.3

1

ms

Time between VDD reaching

VPOR and sensor entering idle

state

Soft reset time

tSR

After soft reset

-

-

1

ms

Time between ACK of soft

reset command and sensor

entering idle state. Also valid

for I2C general call reset.

Measurement

duration

tMEAS,l

Low

repeatability

-

1.3

1.6

ms

Including tPU:

The three repeatability

modes differ with respect to

measurement duration, noise

level and energy

consumption

tMEAS,m

Med.

repeatability

-

3.7

4.5

ms

tMEAS,h

High

repeatability

-

6.9

8.3

ms

Heater-on

duration

tHeater

Long pulse

0.9

1

1.1

s

After that time the heater is

automatically switched off

Short pulse

0.09

0.1

0.11

s

After that time the heater is

automatically switched off

Table 5. System timing specifications

3.2 Absolute Maximum Ratings

Stress levels beyond those listed in Table 6 may cause permanent damage or affect the reliability of the

device. These are stress ratings only and functional operation of the device at these conditions is not

guaranteed. Ratings are only tested each at a time.

Parameter

Rating

Max. voltage on any pin

VSS −0.3 V … VDD +0.3 V

Operating temperature range

−40 °C … 125 °C

Storage temperature range

−40 °C …150 °C

ESD HBM

2 kV

ESD CDM

500 V

Latch up, JESD78 Class II, 125 °C

100 mA

Table 6. Absolute maximum ratings.