ADM697 Microprocessor Supervisor with Chip Enable Signals, Adjustable Low Line Voltage Monitor, Adjustable Watchdog Timer, Low Line, Power Fail and Watchdog Status Outputs and 100mA Output Current

The ADM696/ADM697 supervisory circuits offer complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include µP reset, backup-battery switchover, watchdog timer, CMOS RAM write protection, and power failure warning.

The ADM696/ADM697 are available in 16-pin DIP and small outline packages and provide the following functions:

The ADM696/ADM697 is fabricated using an advanced epitaxial CMOS process combining low power consumption (5 mW), extremely fast Chip Enable gating (5 ns) and high reliability. RESET assertion is guaranteed with VCC as low as 1 V. In addition, the power switching circuitry is designed for minimal voltage drop thereby permitting increased output current drive of up to 100 mA without the need for an external pass transistor.

Features and Benefits

Superior Upgrade for MAX696/MAX697
Specified Over Temperature
Adjustable Low Line Voltage Monitor
Power OK/Reset Time Delay
Reset Assertion Down to 1 V VCC
Watchdog Timer—100 ms, 1.6 s, or Adjustable
Low Switch On Resistance
1.5 O Normal, 20 O in Backup

600 nA Standby Current
Automatic Battery Backup Switching (ADM696)
Fast On-Board Gating of Chip Enable Signals (ADM697)
Voltage Monitor for Power Fail or Low Battery Warning

Power Management

Battery Backup IC

Data Sheets

Document	note
ADM696/ADM697: Microprocessor Supervisory Circuits Data Sheet (Rev. 0)	PDF 409 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADM697ANZ Production	16 ld PDIP	OTH 25	-40 to 85C	3.04	2.63	Y
ADM697AR Production	16 ld SOIC - Wide	OTH 47	-40 to 85C	3.92	3.34	N
ADM697ARZ Production	16 ld SOIC - Wide	OTH 47	-40 to 85C	3.39	2.88	Y
ADM697ARZ-REEL Production	16 ld SOIC - Wide	REEL 1000	-40 to 85C	0	2.88	Y