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AD5700-1 - Low Power HART Modem

General Description

HART-compliant fully integrated FSK modem 1200 Hz and 2200 Hz sinusoidal shift frequencies 115 µA maximum supply current in receive mode Suitable for intrinsically safe applications Integrated receive band-pass filter Minimal external components required Clocking optimized for various system config

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Data Sheet Low Power HART Modem AD5700/AD5700-1 FEATURES GENERAL DESCRIPTION HART-compliant fully integrated FSK modem 1200 Hz and 2200 Hz sinusoidal shift frequencies 115 µA maximum supply current in receive mode Suitable for intrinsically safe applications Integrated receive band-pass filter Minimal external components required Clocking optimized for various system configurations Ultralow power crystal oscillator (60 µA maximum) External CMOS clock source Precision internal oscillator (AD5700-1only) Buffered HART output—extra drive capability 8 kV HBM ESD rating 1.71 V to 5.5 V power supply 1.71 V to 5.