The A5191HRT is a highly integrated, single-chip CMOS modem designed for use in highway addressable remote transducer (HART) field instruments and master systems. It supports half-duplex 1200 bits per second FSK modulation using 1200 Hz and 2200 Hz shift frequencies, ensuring reliable digital communication over industrial 4-20 mA loops. The device provides modulation, demodulation, receive filtering, carrier detection, and signal shaping with low power consumption, making it ideal for intrinsically safe applications within an industrial temperature range of -40°C to +85°C. Available in multiple packages, it integrates external crystal or ceramic resonator operation for stable timing.
Supports half-duplex 1200 bits/sec FSK modulation at 1200 Hz and 2200 Hz
Power Supply Voltage: 3.0V to 5.5V
Operating Temperature Range: -40°C to +85°C
External clock: 460.8 kHz crystal or ceramic resonator
Package Options: PLCC-28, QFN-32, LQFP-32
Carrier detect signal threshold: approximately 100 mVp-p
Receive filter: band-pass with high-pass filtering
Analog inputs: RxA, RxAFI; Digital outputs: RxD, CD
Supported communication baud rate: 1200 baud
Low power consumption optimized for safety applications
Equivalent to industry-standard HART physical layer components
Pin counts: 28, 32 in various packages, with Pb-free options
Buy the HART Modem Series A5191HRT: A5191HRTPGXTD
Order the ON Semiconductor A5191HRTPGXTD HART modem online today and ensure seamless industrial communication. This single-chip solution supports 1200 baud FSK modulation, low power operation, and a wide temperature range from -40°C to +85°C. Available in various packages including PLCC, QFN, and LQFP, it features internal or external crystal operation for stable timing. Ideal for remote transducers, multiplexers, and loop-powered transmitters, purchase now for trusted performance in demanding industrial environments.
Buy ON Semiconductor A5191HRTPGXTD now and experience reliable HART communication with low power consumption for industrial automation.
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