DA5534B_003.doc

February 28th, 2005

3

00005534B784

ECN 711

RECOMMENDED OPERATING CONDITIONS

(

Parameter

Symbol

Conditions

Min.

Typ.

Max

Unit

Operating pressure range

p

10

1100

mbar

abs.

Supply voltage

VDD

2.2

3.0

3.6

V

Supply current,

average (1)

during conversion (2)

standby (no conversion)

VDD = 3.0 V

4

1

0.1

µA

mA

µA

Current consumption into

MCLK (3)

MCLK = 32.768 kHz

0.5

µA

Operating temperature

range

T

-40

+125

°C

Conversion time

MCLK = 32.768 kHz

35

ms

External clock signal (4)

MCLK

30.000 32.768 35.000

kHz

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 MS5534B.

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 2 ms.

3) This value can be reduced by switching off MCLK while MS5534B 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.