Analog Devices introduces dual supply supervisory ICs
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Analog Devices has launched the ADM6305, pictured, and ADM6306 dual voltage supervisors, which have been designed to provide high voltage threshold accuracy of 1.2% for monitoring low voltage core rails.
The devices are claimed to be able to monitor two supplies and provide a reset signal to digital processor based systems. Analog Devices, which specialises in semiconductors for signal processing applications, has said that the devices are ideal for dual supply processors and FPGA's.
Features include two adjustable, resistor programmable, under voltage reset inputs of 0.4 and 1.23, as well as monitor supplies of less than 1.2V when the threshold is set at 0.4V.
The company claim that when a monitored power supply voltage falls below the minimum voltage threshold, a single, active low output triggers a system reset. Once all voltages rise above the selected threshold level, the reset signal is said to remain low for the reset timeout period. Four reset timeout options of 1, 20, 140ms and 1.12s are provided.
The ADM6305 and ADM6306 are available in a 5 lead SOT-23 package, are specified over a temperature range of -40 to 85°C and are available in a 1.7 x 3mm SOT package.
