ADM810LART Analog Devices, ADM810LART Datasheet
ADM810LART
Manufacturer Part Number
ADM810LART
Description
Manufacturer
Analog Devices
Datasheet
1.ADM809MART.pdf
(6 pages)
Specifications of ADM810LART
Date_code
06
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a
GENERAL DESCRIPTION
The ADM809/ADM810 supervisory circuits monitor the
power supply voltage in microprocessor systems. They pro-
vide a reset output during power-up, power-down and
brownout conditions. On power-up, an internal timer holds
reset asserted for 240 ms. This holds the microprocessor in a
reset state until conditions have stabilized. The RESET
output remains operational with V
ADM809 provides an active low reset signal (RESET) while
the ADM810 provides an active high signal (RESET) output.
Six reset threshold voltage options are available suitable for
monitoring a variety of supply voltages. Refer to Table I.
The reset comparator features built-in glitch immunity,
making it immune to fast transients on V
The ADM809/ADM810 consumes only 17 A, making it
suitable for low power portable equipment. It is packaged in
a 3-pin SOT-23 package.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Superior Upgrade for MAX809/MAX810
Specified Over Temperature
Low Power Consumption (17 A)
Precision Voltage Monitor: +3 V, +3.3 V, +5 V Options
Reset Assertion Down to 1 V V
140 ms min Power-On Reset
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
Logic Low RESET Output (ADM809)
Logic High RESET Output (ADM810)
CC
CC
as low as 1 V. The
CC
.
Supervisory Circuit in 3-Pin SOT-23
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
V
CC
V
CC
Figure 1. Typical Operating Circuit
FUNCTIONAL BLOCK DIAGRAM
V
REF
ADM809/ADM810
ADM809
World Wide Web Site: http://www.analog.com
GND
V
CC
ADM809/ADM810
RESET
GND
GENERATOR
Microprocessor
RESET
240ms
© Analog Devices, Inc., 1997
RESET
INPUT
SYSTEM
GND
V
CC
P
RESET
(RESET)
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