Analog Devices Introduces Two Dual-supply Supervisory ICs For Monitoring Microprocessors & FPGAs

Analog Devices, Inc. (ADI) is introducing the ADM6305 and ADM6306 dual-voltage supervisors that provide high-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 well suited for dual supply processors and FPGA’s. Available in a space saving 1.7 x 3.0mm SOT package, the new ADM6305 and ADM6306 expands ADI’s portfolio into the widest portfolio of high accuracy multi voltage supervisors/monitors available.

Featuring two adjustable, resistor-programmable, under-voltage reset inputs of 0.4 and 1.23V, the ADM6305 and ADM6306 can monitor supplies of less than 1.2V when the threshold is set at 0.4V. 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), 20ms, 140ms and 1.12 seconds are also provided. The ADM6305 and ADM6306 are available in a 5-lead SOT-23 package and are specified over a temperature range of -40 to +85°C.

"Each device’s high threshold accuracy of ±1.2% 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."

The ADM6305 and ADM6306 are priced (in 1,000s) at $1.15.