ADM691A

PRODUCTION

Microprocessor Supervisor with Backup Battery Switchover, Adjustable Reset and Watchdog Periods, Chip Enable Signals, 4.65V Threshold Voltage, Watchdog, Battery Backup and Low VCC Status O/Ps and 250mA Output Current

Data Sheet (Rev. 0) Product Selection Table

Part Models: 7
1ku List Price: Starting From $2.13

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Overview

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)

The ADM691A / ADM693A / ADM800L / ADM800M family 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 V_CC as 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.

Part Models: 7
1ku List Price: Starting From $2.13

Documentation

Data Sheet 1

ADM691A/ADM693A/ADM800: Microprocessor Supervisory Circuit Data Sheet (Rev.0) 11/01/1996

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADM691AANZ	16-Lead PDIP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM691AARNZ	16-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM691AARNZ-REEL	16-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM691AARNZ-REEL7	16-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM691AARUZ	16-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM691AARWZ	16-Lead SOIC Wide	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM691AARWZ-REEL	16-Lead SOIC Wide	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 29, 2021 - 21_0033 Assembly Site Transfer for 14/16L 300_MIL PDIP to Cirtek
		PCN21_0033_Form Material_Report Detailed Change Description Qualification Results Summary
ADM691AANZ	PRODUCTION
Aug 19, 2009 - 07_0024 Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad
		Material_Report Material_Report Parts List PCN07_0024_Form Qual Data
ADM691AANZ	PRODUCTION
Mar 25, 2021 - 21_0080 Amkor Philippines as an Alternate Site for SOICN
		PCN21_0080_Form Material_Report Qualification Results Summary Other
ADM691AARNZ	PRODUCTION
ADM691AARNZ-REEL	PRODUCTION
ADM691AARNZ-REEL7	PRODUCTION
Oct 5, 2010 - 10_0146 Halogen Free Material Change for 14/16L SOIC_N Products
		PCN10_0146_Form Material_Report AEC-Q100 Reliability Report ADI0012 Reliability Report
ADM691AARNZ	PRODUCTION
ADM691AARNZ-REEL	PRODUCTION
ADM691AARNZ-REEL7	PRODUCTION
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor
		PCN10_0005_Form Material_Report Reliability Report
ADM691AARUZ	PRODUCTION	PCN10_0005_Form Material_Report Reliability Report
Aug 4, 2010 - 10_0117 Halogen Free Material Change for SOIC_W Products at Carsem
		PCN10_0117_Form Material_Report Reliability Report
ADM691AARWZ	PRODUCTION
ADM691AARWZ-REEL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

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