A5191HRT Overview
Description
The A5191HRT is a single-chip, CMOS modem for use in highway addressable remote transducer (HART) field instruments and masters. The modem and a few external passive components provide all of the functions needed to satisfy HART physical layer requirements including modulation, demodulation, receive filtering, carrier detect, and transmit-signal shaping.
Key Features
- Single-chip, Half-duplex 1200 Bits per Second FSK Modem
- Bell 202 Shift Frequencies of 1200 Hz and 2200 Hz
- 5.5 V Power Supply
- Transmit-signal Wave Shaping
- Receive Band-pass Filter
- Low Power: Optimal for Intrinsically Safe Applications
- Compatible with 3.3 V or 5 V Microcontroller
- Internal Oscillator Requires 460.8 kHz Crystal or Ceramic Resonator
- Meets HART Physical Layer Requirements
- Industrial Temperature Range of -40 °C to +85 °C
