MS5534AP Datasheet, PDF (1/21 Pages) List of Unclassifed Manufacturers – BAROMETER MODULE

MS5534A
BAROMETER MODULE
♦ Integrated pressure sensor
♦ Pressure range 300-1100 mbar
♦ 15 Bit ADC
♦ 6 coefficients for a software
compensation stored on-chip
♦ 3-wire serial interface
♦ 1 system clock line (32.768 kHz)
♦ Low voltage / low power
DESCRIPTION
The MS5534A is a SMD-hybrid device including a piezoresistive pressure sensor and an ADC-Interface IC. It
provides a 16 Bit data word from a pressure- and temperature-dependent voltage. Additionally the module
contains 6 readable coefficients for a highly accurate software calibration of the sensor. MS5534A is a low-
power, low-voltage device with automatic power down (ON/OFF) switching. A 3-wire interface is used for all
communications with a microcontroller. Sensor packaging options are plastic or metal cap.
FEATURES
• 15-Bit ADC resolution
• Supply voltage 2.2 V to 3.6 V
• Low Supply current
• -40°C to +60°C
• Small size
• No external components required
APPLICATIONS
• Mobile altimeter/barometer systems
• Weather control systems
• Adventure or multi-mode watches
• GPS Receivers
BLOCK DIAGRAM
SENSOR ^+IN
-IN
SGND
Input MUX
ADC
dig.
Filter
Sensor
Interface IC
Digital
Interface
Memory
(PROM)
64 bits
Fig.: 1 Block Diagram 5534
VDD
MCLK
DIN
DOUT
SCLK
GND
DA5534_022.doc
July 17th, 2002
1
ECN493