High gain acquisition
SX8722
High gain acquisition for sensor interface
ADVANCED COMMUNICATIONS & SENSING GENERAL DESCRIPTION
The main functi...
Description
SX8722
High gain acquisition for sensor interface
ADVANCED COMMUNICATIONS & SENSING GENERAL DESCRIPTION
The main function of the SX8722 is to acquire signal from Wheatstone bridges or single ended sensors. The input can be a pressure sensor, a GMR or AMR magnetic sensor, a chemical sensor, a thermistor or a mix of several of these sensors. The SX8722 Sensor interface is totally configurable through an I2C compatible interface. Several parameters are configurable through this interface such as alarms or signal post processing.
DATASHEET
KEY PRODUCT FEATURES
16 + 10 bits differential acquisition Preamplifier programmable gain up to 1000 Sensor offset compensation up to 15 times full scale of input signal 4 differential or 7 single ended signal inputs 2 differential reference inputs
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I2C compatible connection to application Internal RC and 32 kHz Oscillators Low power modes - Sleep - Shutdown 4 Full configuration pre selections including: - ZoomingADC™ configuration - 2 alarms with on & off thresholds - Digital filtering
APPLICATION
Pressure sensing (industrial, altimeter, diving computer) Chemical sensing (monitoring, security) Magnetic sensing (compass)
ORDERING INFORMATION
Part Number SX8722I070LF Tools Evaluation Kit Temperature Range -40°C to 125°C Part number XE8000EV120 Package MLPQ44-7x7
I2C EEPROM interface Stand alone mode for alarm monitoring Clock out pin Calibration pin Reset pin Ready / Busy pin
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