www.sensirion.com / D1

Version 3

– April 2022

8/18

3 Electrical Specifications

and max. values are valid in the full temperature range -40

and are based on characterization.

3.1 Electrical Characteristics

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Comments

Supply

voltage

1.08

3.3

3.6

V

-

Power-

up/down level

Static power supply

0.6

-

1.08

V

-

Slew rate of

the supply

voltage

-

-

20

V/ms

Voltage changes on the

rates may lead to a reset

Supply current

(no heater)

Idle state

-

-

0.08

-

1.0

3.4

µA

At 25°C

At 125°C

Power up

-

50

-

µA

-

Measurement

-

320

500

µA

Current while sensor is

measuring

Aver., high repeatability

Aver., med. repeatability

Aver., low repeatability

-

-

-

2.2

1.2

0.4

-

-

-

µA

Aver. current consumption

(continuous operation with

one meas. per second)

Power

consumpt. at

VDD=1.2V

(no heater)

-

Aver., high repeatability

Aver., med. repeatability

Aver., low repeatability

-

-

-

2.6

1.4

0.5

-

-

-

µW

Aver. power consumption

(continuous operation with

one meas. per second)

Low level

input voltage

-

0

-

0.3*

V

-

High level

input voltage

-

0.7*

-

V

-

Pull up

resistors

820

-

-

Ω

-

≥ 1.62 V

390

-

-

Ω

-

Low level

output voltage

> 820 Ω

-

-

0.2*

V

-

= 1.62V … 2.0V,

> 390 Ω

-

-

0.2*

V

-

> 390 Ω

-

-

0.4

V

-

Capacitive

bus load

≤ 820 Ω: fast mode

-

-

400

pF

Capacitive bus load can be

determined from

for fast mode and

plus

= 390 Ω,

VDD > 1.62 V: fast

mode plus

-

-

340

pF

Table 3: Electrical specifications.