DS8500 Low-Power, Single-Chip HART Modem



Version

1



Registered Product Information

Manufacturer: Maxim Integrated
Product Name: DS8500 Low-Power, Single-Chip HART Modem
Product Description: Modem IC
Protocol: HART
Category: Modem IC
Profile: HART Field Device
More Information:
The DS8500 is a HART-registered single-chip modem IC ideal for low-power process-control transmitters. Power consumption is reduced by dynamically disabling the transmit or receive circuitry when not in use. The device integrates the modulation and demodulation of the 1200Hz/2200Hz FSK signal, has very low power consumption, and needs only a few external components due to the integrated digital signal processing. The input signal is sampled by an analog-to-digital converter (ADC), followed by a digital filter/demodulator. This architecture ensures reliable signal detection in noisy environments. The output digital-to- analog converter (DAC) generates a sine wave and provides a clean signal with phase-continuous switching between 1200Hz and 2200Hz. Features * Single-Chip, Half-Duplex, 1200bps FSK Modulation and Demodulation * Digital Signal Processing Provides Reliable Input Signal Detection in Noisy Conditions * Sinusoidal Output Signal with Lowest Harmonic Distortion * Few External Components Enable a Space-Saving Solution * Standard Component 3.6864MHz Crystal * Complies to HART Physical Layer Requirements * 2.7V to 3.6V Operating Voltage * 285µA (max) Current Consumption * Space-Saving, 5mm x 5mm x 0.8mm, 20-Pin TQFN Applications * 4–20mA Loop-Powered Transmitters for Temperature, Pressure, Flow, and Level Measurement * HART Multiplexers * HART Modem Interface Connectivity

Registered Product Details

Manufacturer ID (hex): 00607D
Device Type ID (hex): E1FF
DEV_REV (hex): 0x01
Technology Version: 7
Wireless Product: No

Registration Information

Registration Authority: FieldComm Group
Registration Status: Registered

Contact Information