DA5541B_005.doc

3

00005541766 ECN865

RECOMMENDED OPERATING CONDITIONS

(T=25°C, VDD=3.0V unless noted otherwise)

Parameter

Symbol

Conditions

Min.

Typ.

Max

Unit

Operating pressure range

p

0

14

bar

Supply voltage

VDD

2.2

3.0

3.6

V

Supply current,

Average (1)

during conversion (2)

standby (no conversion)

4

1

0.1

µA

mA

µA

Current consumption into

MCLK (3)

MCLK=32768Hz

0.5

µA

Operating temperature

Range

-40

+25

+85

°C

Conversion time (15 Bit)

MCLK=32768Hz

35

ms

External clock signal (4)

MCLK

30000

32768

35000

Hz

Duty cycle of MCLK

40/60

50/50

60/40

%

Serial data clock

SCLK

500

kHz

NOTES

1) Under the assumption of one conversion every second. Conversion means either a pressure or a

temperature measurement started by a command to the serial interface of MS5541B.

2) During conversion the sensor will be switched on and off in order to reduce power consumption; the total on

time within a conversion is about 2ms.

3) This value can be reduced by switching off MCLK while MS5541B is in standby mode.

4) It is strongly recommended that a crystal oscillator be used because the device is sensitive to clock jitter. A

square-wave form of the clock signal is a must.