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See Technical Specifications

ADM690ANZ

Functions: 4.65 V Reset, Battery Switchover, Watchdog Timer, Power Fail Input

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

ADM690ANZ
Datasheet:

ADM690ANZ Datasheet (PDF)
Programmable:

Not Verified
Type:

Battery Backup Circuit
Number of Voltages Monitored:

1
Voltage - Threshold:

4.65V
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ADM690ANZ General Description

The ADM690-ADM695 family of supervisory circuits offers 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 complete family provides a variety of configurations to satisfy most microprocessor system requirements.

Key Features

Superior Upgrade for MAX690–MAX695
Specified Over Temperature
Low Power Consumption (5 mW)
Precision Voltage Monitor
Reset Assertion Down to 1 V VCC
Low Switch On-Resistance 1.5 O Normal, 20 O in Backup

Application

Power-on reset output during power-up, power-down and brownout conditions. The RESET output remains operational with V_CC as low as 1 V.
Battery backup switching for CMOS RAM, CMOS microprocessor or other low power logic.
A reset pulse if the optional watchdog timer has not been toggled within a specified time.
A 1.3 V threshold detector for power fail warning, low battery detection, or to monitor a power
Supply other than +5 V.

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Supervisors	Series	-
Programmable	Not Verified	Type	Battery Backup Circuit
Number of Voltages Monitored	1	Voltage - Threshold	4.65V
Output	Push-Pull, Totem Pole	Reset	Active Low
Reset Timeout	35ms Minimum	Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Through Hole	Base Product Number	ADM690

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Ratings and Reviews

T**y 04/02/2023

I appreciate the business-good work

B**e 01/31/2022

Laurie and Ed are the best. Thanks for all your help,excellent service and product. I look forward to doing more business!

J**b 11/30/2021

good product ....time to time delivery ... seller is good .... I m from india

J**n 12/03/2020

Note that these units use the CH340 chip, which require an additional software driver before they are recognized by the Arduino IDE.Search for "How to Install CH340 Drivers" on sparkfun's web site for good instructions.