The HART protocol superimposes audio digital signals on 4~20 mA analog signals. The digital signal amplitude is 0.5 mA and the data rate reaches 1200 b/s. 1200 Hz represents logic "1" and 2200 Hz represents logic "0". Enables two-way digital communication. HART communication has the characteristics of simultaneous point-to-point 4 ~ 20 mA analog and digital communication, multi-station communication methods, and multiple transmissions.The HT1200M is compatible with the SYM20C15 and HT20C15 and with ON OnSemi's A5191HRT and HT2015.

HT1200M is a low-power modem chip that can be used in HART devices, which only needs a small number of external components to complete the modulation and demodulation of HART signals.

HT1200M is a low-power modem chip that can be used in HART devices, which only needs a small number of external components to complete the modulation and demodulation of HART signals.

Protocol: HART (HT1200M HART Communication Controller) Operating Temperature: -40-85°C(HT1200M HART Communication Controller) Dissipation Power: International Standard(HT1200M HART Communication Controller) Supply Voltage: 3.3-5.0V(HT1200M HART Communication Controller) Application: for the Fieldbus Instruments(HT1200M HART Communication Controller) D/C: 28pin, 32pin(HT1200M HART Communication Controller) Package: 28pin, 32pin(HT1200M HART Communication Controller) Compatibility: with HT20C15 and SYM20C15(HT1200M HART Communication Controller) Layer: Single Chip, FSK Modem(HT1200M HART Communication Controller) Operation Current: Less Than 200uA(HT1200M HART Communication Controller)