The DAC8740H and DAC8741H (DAC874xH) are HART®, FOUNDATION Fieldbus™, and PROFIBUS PA compatible low-power modems designed for industrial process control and industrial-automation applications. In HART mode, the DAC874xH integrates all of the required circuitry to operate as half-duplex HART physical layer modems, in either slave or master configurations wit.
•1 HART-compliant physical layer modem
– 1200-Hz, 2200-Hz HART FSK sinusoids
– Register programmable amplitude of TX signals (DAC8741H only)
– Integrated RX demodulator and band-pass filter with minimal external components
• FOUNDATION Fieldbus compatible H1 controller and medium attachment unit (MAU)
– 31.25 kbit/s communication based on Manchester-coded bus powered (MBP)
– Integrated Manchester encoder and decoder
– Compatible with PROFIBUS PA
• Low quiescent current: 180 µA max at typical industrial operating temperature range (
–40°C to +85°C)
• Integrated 1.5-V reference
• Flexible clockin.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | DAC8741H |
Texas Instruments |
low-power modems | |
2 | DAC8718 |
Texas Instruments |
DIGITAL-TO-ANALOG CONVERTER | |
3 | DAC8728 |
Texas Instruments |
DIGITAL-TO-ANALOG CONVERTER | |
4 | DAC8734 |
Texas Instruments |
DIGITAL-TO-ANALOG CONVERTER | |
5 | DAC8750 |
Texas Instruments |
Digital-to-Analog Converters | |
6 | DAC8760 |
Texas Instruments |
DIGITAL-TO-ANALOG CONVERTER | |
7 | DAC8775 |
Texas Instruments |
DIGITAL-TO-ANALOG CONVERTER | |
8 | DAC80 |
Burr-Brown Corporation |
Monolithic 12-Bit DIGITAL-TO-ANALOG CONVERTERS | |
9 | DAC800 |
National Semiconductor |
8 BIT DIGITAL TO ANALOG CONVERTERS | |
10 | DAC80004 |
Texas Instruments |
D/A Converter | |
11 | DAC801 |
National Semiconductor |
8 BIT DIGITAL TO ANALOG CONVERTERS | |
12 | DAC802 |
National Semiconductor |
8 BIT DIGITAL TO ANALOG CONVERTERS |