Date: 18/11/2010

Dual voltage supervisory ICs from Analog Devices for dual supply processors and FPGAs

Analog Devices, Inc. has unveiled the ADM6305 and ADM6306 dual-voltage supervisory ICs, reported to provide voltage threshold accuracy of 1.2% for monitoring low voltage core rails. These new supervisory ICs are designed to monitor two supplies, provide a reset signal to digital processor-based systems and are suggested for dual supply processors and FPGA's.

These supervisory ICs feature two adjustable, resistor-programmable, under-voltage reset inputs of 0.4 V and 1.23 V. The ADM6305 and ADM6306 can monitor supplies of less than 1.2 V when the threshold is set at 0.4 V. 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 remains low for the reset timeout period. Four reset timeout options of 1 ms (milliseconds), 20 ms, 140 ms and 1.12 seconds are also provided. These ICs have a power consumption of 8 ?A (typical) that benefits portable device designs.

"Each device's high threshold accuracy of ±1.2 percent allows very accurate monitoring of low voltage core rails," said Nigel Brooke, product marketing manager, Power Management Technology Group, Analog Devices. "When this is compared to the ±2.4% accuracy specified for the nearest alternative supervisors, the ADM6305 and ADM6306 are the most accurate microprocessor supervisors available."

Package: 5-lead SOT-23

Operating temperature range: -40°C to +85°C

Price: Each US$1.15 for 1K pieces

Availability: Now