ADM693A Series

Microprocessor Supervisor with Backup Battery Switchover, Watchdog Feature, Power Fail Warning, 4.4V Threshold Voltage, 250mA Output Current

Manufacturer: Analog Devices

Catalog

Microprocessor Supervisor with Backup Battery Switchover, Watchdog Feature, Power Fail Warning, 4.4V Threshold Voltage, 250mA Output Current

Part	Type	Reset	Output	Package / Case	Package / Case [x]	Package / Case [y]	Reset Timeout [Min]	Number of Voltages Monitored	Supplier Device Package	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Threshold	Reset Timeout	Package / Case	Package / Case	Package / Case
Analog Devices ADM693AARN	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-SOIC	0.154 in	3.9 mm	140 ms	1	16-SOIC	Surface Mount	85 °C	-40 °C	4.4 V
Analog Devices ADM693AN	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-DIP				1	16-PDIP	Through Hole	85 °C	-40 °C	4.4 V	35 ms	0.3 in	7.62 mm
Analog Devices ADM693SQ	Simple Reset/Power-On Reset	Active High/Active Low	Push-Pull Totem Pole	16-CDIP				1	16-CERDIP	Through Hole	125 °C	-55 °C	4.4 V	35 ms			0.3 in 7.62 mm
Analog Devices ADM693AARW	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-SOIC	0.295 in	7.5 mm	140 ms	1	16-SOIC	Surface Mount	85 °C	-40 °C	4.4 V
Analog Devices ADM693AARWZ-REEL	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-SOIC	0.295 in	7.5 mm	140 ms	1	16-SOIC	Surface Mount	85 °C	-40 °C	4.4 V
Analog Devices ADM693ANZ	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-DIP				1	16-PDIP	Through Hole	85 °C	-40 °C	4.4 V	35 ms	0.3 in	7.62 mm
Analog Devices ADM693ARZ	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-SOIC	0.295 in	7.5 mm		1	16-SOIC	Surface Mount	85 °C	-40 °C	4.4 V	35 ms
Analog Devices ADM693AR-REEL	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-SOIC	0.295 in	7.5 mm		1	16-SOIC	Surface Mount	85 °C	-40 °C	4.4 V	35 ms
Analog Devices ADM693ARZ-REEL	Battery Backup Circuit	Active High/Active Low	Open Drain Push-Pull	16-SOIC	0.295 in	7.5 mm		1	16-SOIC	Surface Mount	85 °C	-40 °C	4.4 V	35 ms

Catalog

Microprocessor Supervisor with Backup Battery Switchover, Watchdog Feature, Power Fail Warning, 4.4V Threshold Voltage, 250mA Output Current

Key Features

• Low Power Consumption

• Precision Voltage Monitor

• ±2% Tolerance on ADM800L/M

• Reset Time Delay—200 ms, or Adjustable

• 1 µA Standby Current

• Automatic Battery Backup Power Switching

• Fast Onboard Gating of Chip Enable Signals

• Also Available in TSSOP Package (ADM691A)

Description

TheADM691A/ ADM693A /ADM800L/ADM800Mfamily of supervisory circuits offers complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include mP reset, backup-battery switchover, watchdog timer, CMOS RAM write protection, and power-failure warning. The family of products provides an upgrade for the MAX691A/93A/800M family of products.All parts are available in 16-pin DIP and SO packages. The ADM691A is also available in a space-saving TSSOP package. The following functionality is provided:Power-on reset output during power-up, power-down and brownout conditions. The circuitry remains operational with VCCas low as 1 V.Battery backup switching for CMOS RAM, CMOS micro-processor or other low power logic.A reset pulse if the optional watchdog timer has not been toggled within a specified time.A 1.25 V threshold detector for power fail warning, low battery detection, or to monitor a power supply other than +5 V.