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.
5 V interface −40°C to +125°C operation 4 mm × 4 mm LFCSP package HART physical laye...