ADI: ±0.5% accurate supervisors target very low voltage components

Analog Devices announces the Power by Linear LTC2962-LTC2964 family of exceptionally accurate 4-channel voltage supervisors for increased system voltage margin and enhanced reliability.  ASIC, FPGA, DSP, MCU and MPU architectures that operate from supplies as low as 1V cannot utilize traditional 1%-2% accurate voltage supervisors without shedding valuable system voltage margin and shrinking the remaining load operating voltage range.  The LTC2962 family possesses a best-in-class ±0.5% reset threshold accuracy, which relaxes power supply demands, increases system tolerance to transients, and enabling a lower nominal supply to dramatically reduce power consumption.  The LTC2962 family fulfills many network, telecom and automotive requirements with its high accuracy, flexible 1V to 5V (or adjustable) reset thresholds, and wide operating temperature range.

A unique feature set differentiates the LTC2962 family in the low power voltage monitor market, making it an excellent choice for many multi-rail applications.  For each channel, one of 16 preset or adjustable, ±0.5% accurate, voltage thresholds can be easily selected for undervoltage, overvoltage or negative monitoring.  The supervisory circuits monitor inputs and drive the outputs according to the configured thresholds.  Alternatively, a manual reset input is also available for optional use of a pushbutton switch to force a system reset.  Ordering options include a watchdog with adjustable timers (LTC2963-1) and individual comparator open-drain outputs for each channel (LTC2964).  An adjustable timeout period is available on all devices. 

The LTC2962 family is available today in multiple temperature grades: 0 to 70°C (C grade), –40 to 85°C (I grade), and –40 to 125°C (H grade).  The LTC2962 is available in a 16-lead 3 x 3mm QFN, while the LTC2963-1 and LTC2964 are available in a 20-lead 3x 4mm QFN.


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