Maxim Integrated DS8500-JND+ HART Modem

The DS8500-JND+ is a highly integrated HART (Highway Addressable Remote Transducer) modem solution from Maxim Integrated, designed to simplify the development of industrial smart sensors and transmitters. This device is an essential component for professionals in the process control and automation industry, enabling seamless communication between intelligent field instruments and host systems.

Featuring a complete HART physical layer modem solution, the DS8500-JND+ operates as a bell 202 frequency shift keyed (FSK) modem, compliant with the HART physical layer specification: HCF_SPEC-54. This ensures that the device can effortlessly interface with HART networks, providing reliable two-way digital communication without disturbing the 4-20mA analog signal that transmits the primary measured variable.

The modem's low power consumption makes it ideal for loop-powered devices, and it is capable of operating in a wide supply voltage range of 3.0V to 5.5V, making it versatile for various application requirements. The DS8500-JND+ features a programmable carrier detect threshold and a programmable transmitter phase continuous frequency shift, which allows for fine-tuning to optimize performance in different system configurations.

Integration is further simplified by the inclusion of selectable GPIO, a UART interface for communication with microcontrollers, and minimal external components required for operation. This eases the design process and accelerates time-to-market for developers of HART-enabled devices.

The DS8500-JND+ comes in a compact 16-pin NSOIC package, which is space-efficient and suitable for the dense layouts often found in industrial equipment. Moreover, it is specified for the industrial temperature range (-40°C to +85°C), ensuring reliable operation in harsh environments.

With its robust feature set, the Maxim Integrated DS8500-JND+ modem is an optimal choice for designers looking to implement HART communication capabilities in their products, providing both the reliability and the flexibility required in the demanding field of industrial process control.