Smallest HART modem IC minimizes system size and power consumption
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Tiny, low-power HART modem IC reduces system size.
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SUNNYVALE, CA—April 23, 2009—Maxim Integrated Products (NASDAQ: MXIM) introduces the DS8500, a single-chip, HART-compliant modem IC that enables the smallest solution size for modulating and demodulating 1.2kHz/2.2kHz FSK signals. This device integrates an ADC and state machine to implement the digital filter required to eliminate noise from the HART signal. The built-in digital filter minimizes the number of external components while ensuring reliable signal detection in noisy industrial environments. A simple, single-pole, lowpass/highpass RC filter is all that is required externally. Additionally, the DS8500 features a low, 285µA (max) active-mode current for applications in which low power consumption is critical. Packaged in a space-saving TQFN, the DS8500 is ideal for space-constrained, 4–20mA current-loop applications.
The DS8500 operates from 2.7V to 3.6V, and is fully specified over the -40°C to +85°C extended temperature range. It is available in a lead-free, 5mm x 5mm x 0.8mm, 20-pin TQFN package. Pricing starts at $4.10 (1000-up, FOB USA).
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company reported revenue in excess of $2 billion for fiscal 2008. Maxim was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 5900 products serving the industrial, communications, consumer, and computing markets. For more information, go to www.maxim-ic.com.
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