AD5700 Low Power HART Modem
Applications
Field transmitters
HART multiplexers
PLC and DCS analog I/O modules
HART network connectivity
The AD5700 is a single-chip solution, designed and specified to operate as a HART® FSK half-duplex modem, complying with the HART physical layer requirements. The AD5700 integrates all of the necessary filtering, signal detection, modulating, demodulating and signal generation functions, thus requiring few external components. The maximum supply current consumption of 115 µA and the small 4mm x 4mm housing, makes the AD5700 an optimal choice for low power loop-powered applications. Transmit waveforms are phase continuous 1200 Hz and 2200 Hz sinusoids. The AD5700 contains accurate carrier detect circuitry and uses a standard UART interface.
Features and Benefits- HART-compliant fully integrated FSK modem
- 1200 Hz and 2200 Hz sinusoidal shift frequencies
- 115 µA maximum supply current in receive mode
- Integrated receive band-pass filter
- Minimal external components required
- Clocking optimized for various system configurations
- Ultralow power crystal oscillator (60 µA maximum)
- External CMOS clock source - Intrinsically safe solution
- Buffered HART output—extra drive capability
- 1.71 V to 5.5 V power supply
- See data sheet for additional features
| IBIS ModelsReference Designs |
Data Sheets
Application Notes
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD5700ACPZ-RL7 Production | LFCSP:LEADFRM CHIP SCALE | REEL 1500 | -40 to 125C | 0 | 3.75 | Y |
| AD5700BCPZ-R5 Production | LFCSP:LEADFRM CHIP SCALE | OTH 500 | -40 to 125C | 0 | 4.45 | Y |
| AD5700BCPZ-RL7 Production | LFCSP:LEADFRM CHIP SCALE | REEL 1500 | -40 to 125C | 0 | 4.45 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-AD5700-1EBZ | Evaluation Board | 59.99 | Y |
Reference Materials
