hart chip
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HT5700 Low Power HART Chip (Modem)
HT5700 Low Power HART Chip (Modem)： 1. HT5700 Low Power HART Chip Fully integrated FSK modem compliant with HART standards； 2. HT5700 Low Power HART Chip HART output with drive capability 3. HT5700 Low Power HART Chip Internal integrated crystal oscillator to simplify circuit 4. HT5700 Low Power HART Chip Working temperature: -40℃~+125℃ 5. HT5700 Low Power HART Chip Working current: <115u4 (3.3V) 6. HT5700 Low Power HART Chip Dimension: 4mmx4mm, encapsulation: LFCSP24 7. HT5700 Low Power HART Chip Fully compatible with Onsemi AD5700, reducing material costs
Email Details
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0102-2024
Development of hart pressure transmitter using domestic hart chip HART1200M
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.
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0506-2026
Hardware Circuit Design and Signal Integrity
The core challenge of HART hardware design lies in how to simultaneously carry a 4-20 mA DC analog signal, a 1200/2200 Hz FSK AC signal, and possible loop supply voltage on the same pair of wires, ensuring that the three do not interfere with each other and meet stringent industrial EMC standards. This chapter starts with the system architecture and analyzes the design key points layer by layer.
