ADM706PANZ Datasheet

Supervisory Circuits


The ADM706P/ADM706R/ADM706S/ADM706T/ ADM706PANZ and the ADM708R/ADM708S/ADM708T microprocessor supervisory circuits are suitable for monitoring either 3 V or 3.3 V power supplies. The ADM706P/ADM706R/ADM706S/ADM706T provide power-supply monitoring circuitry that generate a reset output during power-up, power-down, and brownout conditions. The reset output remains operational with VCC as low as 1 V. Independent watchdog monitoring circuitry is also provided. This is activated if the watchdog input has not been toggled within 1.6 seconds. In addition, there is a 1.25 V threshold detector for power-fail warning, low battery detection, or to monitor an additional power supply. An active low debounced MR input is also included. The ADM706R, ADM706S, and ADM706T are identical except for the reset threshold monitor levels, which are 2.63 V, 2.93 V, and 3.08 V, respectively. The ADM706P is identical to the ADM706R in that the reset threshold is 2.63 V. It differs only in that it has an active high reset output. The ADM708R/ADM708S/ADM708T provide similar functionality as the ADM706R/ADM706S/ADM706T and only differ in that a watchdog timer function is not available. Instead, an active high reset output (RESET) is provided in addition to the active low (RESET) output. All parts are available in narrow 8-lead PDIP and 8-lead SOIC packages. ADM706PANZ Features • Precision supply voltage monitor • 100 μA quiescent current • 200 ms reset pulse width • Debounced manual reset input (MR) • Independent watchdog timer • Reset output • Voltage monitor for power-fail or low battery warning • Guaranteed RESET valid with VCC = 1 V • Superior upgrade for MAX706P/R/S/T, MAX708R/S/T ADM706PANZ Applications • Microprocessor systems • Computers • Controllers • Intelligent instruments • Critical microprocessor monitoring • Battery-operated systems • Portable instruments


[{"Name":"Monitored Voltage:","Value":"2.63 V"},{"Name":"Undervoltage Threshold:","Value":"2.55 V "},{"Name":"Overvoltage Threshold:","Value":"2.7 V"},{"Name":" Maximum Operating Temperature:","Value":"+ 85 C"},{"Name":"Minimum Operating Temperature:","Value":"- 40 C"},{"Name":" Maximum Power Dissipation:","Value":"727 mW"},{"Name":"Supply Voltage - Min:","Value":"4.75 V"},{"Name":"Supply Voltage - Max:","Value":"5.5 V"},{"Name":" Power-Up Reset Delay (Typ):","Value":"280 ms"},{"Name":"","Value":""}]

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