MS5561C Datasheet, PDF (4/21 Pages) TE Connectivity Ltd – High accuracy temperature measurement

MS5561C
Micro Altimeter
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
Iavg
Isc
Iss
T
tconv
MCLK
SCLK
Conditions
VDD = 3.0 V
MCLK = 32.768 kHz
MCLK = 32.768 kHz
(Ta = 25 °C, VDD = 3.0 V unless noted otherwise)
Min
Typ
Max
Unit
10
1100
mbar
abs.
2.2
3.0
3.6
V
4
µA
1
mA
0.1
µA
0.5
µA
-40
+25
+85
°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 MS5561C.
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 MS5561C 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.
SENSOR SOLUTIONS ///MS5561C
09/2015
Page 4