HP02S
HP02S is BAROMETER MODULE manufactured by HOPERF.
Description
The HP02S includes a piezo-resistive pressure sensor and an ADC interface. It provides 16 bit word data for pressure and temperature related voltage. With the help of a highly accurate calibration of the senor, 5 unique coefficients were stored on the chip, thus accurate pressure and temperature reading can be realized. HP02S is a low power, low voltage device with automatic power down switching. I2C Serial Interface is used for munications with a microprocessor. Features
. 14 Bit ENOB ADC resolution . Supply voltage 2.0v-5.0v . 0° C to + 50° C operating range Applications . Pressure measurement and control systems . Mobile altimeter/barometer systems . Weather forecast products . Adventure or multi-mode watches Block Diagram
Free Datasheet http://../
Hope RF
BAROMETER MODULE
2011-6-8 Version: 1.4
Pin Name VSS VDD MCLK XCLR SDA SCL
Pin Number 1 2 3 4 5 6
Type G P I I I/O I
Function power ground power VCC master clock(32k) input ADC reset input (keep low when system is in idle state) . I²C data input and output
I2C clock input
- XCLR is to reset the AD converter (active low). XCLR should be set to high only during AD conversion phase(reading T1,D1). While at all other states, such as reading calibration factors, this pin should be kept low.
Absolute Maximum Ratings
Parameter Supply Voltage Over pressure Storage Temperature Symbol VDD P Tstg Min -0.3 -40 Max 5 5 125 Unit V Bar(abs)
°C
Remended Operating Conditions
Parameter Supply Voltage Supply Current During Conversion stand by Operating Pressure Range Operating Temperature Range Conversion Time Duty Cycle of MCLK Serial Date Rate I P T T SCL VDD=3V Symbol VDD I Conditions VDD=3V Min 2.0 0.0001 0.01 --300 0 MCLK=32k 40% 50% Typ 3 0.5 0.5 0.1 25 Max 5.0 2 2 3 1100 50 35 60% 500 Unit V m A m A
μΑ hpa (abs)
°C ms % KHZ
Pressure and Temperature Output Characteristics
With the calibration data provided by the HP02S system, it should be able to reach the following characteristics:
Paramet...
