ADM708AR Analog Devices Inc, ADM708AR Datasheet
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ADM708AR
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ADM708AR Summary of contents
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FEATURES Guaranteed RESET valid with 190 μA quiescent current Precision supply voltage monitor 4.65 V (ADM705/ADM707) 4.40 V (ADM706/ADM708) 200 ms reset pulse width Debounced TTL/CMOS manual reset input (MR) Independent watchdog timer (ADM705/ADM706) 1.60 ...
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ADM705/ADM706/ADM707/ADM708 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagrams ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configurations and Function Descriptions ...
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SPECIFICATIONS MIN MAX Table 1. Parameter POWER SUPPLY V Operating Voltage Range CC Supply Current LOGIC OUTPUT Reset Threshold Reset Threshold Hysteresis RESET PULSE WIDTH RESET ...
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ADM705/ADM706/ADM707/ADM708 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V CC All Other Inputs Input Current V CC GND Digital Output Current Power Dissipation, N-8 PDIP θ Thermal Impedance JA Power Dissipation, R-8 SOIC θ ...
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PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS MR WDO 1 8 ADM705/ V RESET ADM706 GND WDI 3 6 TOP VIEW (Not to Scale) PFI PFO 4 5 Figure 3. ADM705/ADM706 PDIP/SOIC Pin Configuration Table 3. Pin Function Descriptions ...
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ADM705/ADM706/ADM707/ADM708 TYPICAL PERFORMANCE CHARACTERISTICS A1 4.50V 100 RESET 1V 1V Figure 6. RESET Output Voltage vs. Supply Voltage A1 4.50V 100 RESET Figure 7. ADM707/ADM708 RESET Output Voltage ...
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RESET RESET 25° 100ns/DIV Figure 10. RESET , RESET Assertion 5V RESET 25° 100ns/DIV Figure 11. RESET , RESET Deassertion ADM705/ADM706/ADM707/ADM708 ...
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ADM705/ADM706/ADM707/ADM708 CIRCUIT INFORMATION POWER-FAIL RESET OUTPUT RESET is an active low output that provides a reset signal to the microprocessor whenever the V input is below the reset CC threshold. An internal timer holds RESET low for 200 ms after ...
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Adding Hysteresis to the Power-Fail Comparator For increased noise immunity, hysteresis can be added to the power-fail comparator. Because the comparator circuit is noninverting, hysteresis can be added simply by connecting a resistor between the PFO output and the PFI ...
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ADM705/ADM706/ADM707/ADM708 APPLICATIONS INFORMATION A typical application circuit is shown in Figure 18. The unregulated dc input supply is monitored using PFI via the resistive divider network. Resistor R1 and Resistor R2 should be selected so that when the supply voltage ...
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OUTLINE DIMENSIONS 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 ...
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... ADM708AR-REEL −40°C to +85°C 1 ADM708ARZ −40°C to +85°C 1 ADM708ARZ-REEL −40°C to +85°C ADM708ARM −40°C to +85°C ADM708ARM-REEL −40°C to +85°C 1 ADM708ARMZ −40°C to +85°C 1 ADM708ARMZ-REEL −40°C to +85° RoHS Compliant Part. ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...