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      Industrial Control
      This product series include HART Modem IC, current loop IC, and industrial-level sensor IC for industrial measurement and communication purposes.
      Program overview
      The single-chip HART modem SD2057 and digital-to-analog converter SD2421 are used to implement the HART protocol remote communication module.
      Program advantages

      • High precision, low power consumption, low cost, and reliability

      • High stability that satisfies the requirements of the industrial environment

      High precision, low power consumption, low cost, and reliability

      High stability that satisfies the requirements of the industrial environment

      Features
      Hart

      • Meets HART physical layer requirements

      • Complies with Bell202 standard carrier 1200Hz and 2200Hz

      • Integrated receiving filter with minimal external components required

      • Buffered HART output for drive capability

      • UART port

      • Operating voltage range: 2.7~5.5V

      • Low power consumption, 112µA maximum supply current in transmit mode

      • Operating temperature range: -55℃-125℃

      • RoHS compliant

      4-20mA current loop

      • 16 bits resolution and monotonicity

      • ±0.01% integral nonlinearity

      • 3V/3.3V/5V selectable voltage source

      • 2.5V & 1.25V precision reference

      • 520uA maximum quiescent current

      • HART compatible

      • Flexible serial interface

      • Flexible alarm current output

      • Short circuit protection and over current protection

      • 16 pins SOIC package

      • Operating temperature range: -40℃ to +85℃

      Application diagram
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