MS5534B_1 Datasheet, PDF (3/21 Pages) Intersema Sensoric SA – BAROMETER MODULE

RECOMMENDED OPERATING CONDITIONS
Parameter
Operating pressure range
Supply voltage
Supply current,
average (1)
during conversion (2)
standby (no conversion)
Current consumption into
MCLK (3)
Operating temperature
range
Conversion time
External clock signal (4)
Duty cycle of MCLK
Serial data clock
Symbol
p
VDD
I_avg
I_sc
I_ss
T
t_conv
MCLK
SCLK
(Ta = 25°C, VDD = 3.0 V unless noted otherwise)
Conditions
Min. Typ. Max
Unit
VDD = 3.0 V
10
1100
mbar
abs.
2.2
3.0
3.6
V
4
µA
1
mA
0.1
µA
MCLK = 32.768 kHz
0.5
µA
MCLK = 32.768 kHz
-40
+125
°C
35
ms
30.000 32.768 35.000 kHz
40/60 50/50 60/40
%
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.
DA5534B_003.doc
February 28th, 2005
3
00005534B784
ECN 711