Norwood, Mass. Analog Devices, Inc. (ADI) has expanded its family of interface products with a fully isolated, single-package, surface-mount RS-232 transceiver with integrated dc-to-dc converter to supply isolated power.
Touted as an industry first, the ADM3251E transceiver integrates a line driver, line receiver, oscillator, rectifier, regulator, voltage doubler, voltage inverter and transformers in a single-chip solution that isolates both the data and power lines on chip. The highly integrated device provides a robust serial communications interface with isolated power for use in harsh HVAC, industrial and medical applications.
The ADM3251E transceiver incorporates ADI's iCoupler and isoPower isolation technologies and is said to be the first surface-mount RS-232 transceiver to feature full isolation of both the data lines and power. With a 2.5-kV isolation rating, the RS-232 transceiver complies with industry-standard isolation regulations, including UL1577 and DIN VDE 0884-10, ensuring it will meet the robustness levels required in noisy operating environments such as isolated RS-232 diagnostic data ports in HVAC building control systems, industrial automation and control applications, point-of-sale equipment, programmable logic controllers, telecom and medical equipment.
The device is available in a Pb-free 13 x 10.56-mm (138 mm2), 20-lead wide body small outline integrated circuit (WSOIC) surface-mount package. The SMT package reduces board space by 45 percent compared with traditional ICs and helps to accelerate the manufacturing process and lower system development costs, ADI said.
Pricing: $2.99 each in quantities of 1,000.
Availability: Available now in production quantities.
Product information: ADM3251E, iCoupler digital isolation technology, isoPower dc-to-dc converter and interface products
Analog Devices Inc., www.analog.com