Datasheet Summary
SD2085 Low Power HARTTM Modem
Feature
- Single chip, half duplex 1200 bps FSK modem
- Meets HART physical layer requirements
- Bell 202 shift frequencies of 1200Hz and
2200Hz
- Buffered HART output for drive capability
- Digital signal processing provides reliable input signal detection
- UART interface
- 2.7V to 3.6V power supply
- 85μA maximum supply current in transmit mode
- -55°C to +125°C operation range
- 20pins 5mm х 5mm x 0.75mm TQFN20 package
- RoHS pliant
General Description
The SD2085 is a CMOS single chip modem IC used in Highway Addressable Remote Transducer (HART) field instruments and masters. This IC integrates all necessary filtering, signal detection, modulating,...