ADM803RAKS-REEL-7 AD [Analog Devices], ADM803RAKS-REEL-7 Datasheet

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ADM803RAKS-REEL-7

Manufacturer Part Number
ADM803RAKS-REEL-7
Description
Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23
Manufacturer
AD [Analog Devices]
Datasheet
1.ADM803RAKS-REEL-7.pdf (12 pages)
GENERAL DESCRIPTION
The ADM803/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 opera-
tional with V
provide an active low reset signal (RESET), while the ADM810
provides an active high signal (RESET) output. The ADM809
and ADM810 have push-pull outputs whereas the ADM803 has
an open-drain output, which requires an external pull-up resistor.
Seven 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 ADM803/ADM809/ADM810 consume only 17 µA, making
it suitable for low power portable equipment. The ADM803 is
available in a 3-lead SC70; the ADM809/ADM810 is available
in 3-lead SOT-23 and SC70 packages.
REV. C
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
FEATURES
Specified over Temperature
Low Power Consumption (17 A)
Precision Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V Options
Reset Assertion Down to 1 V V
140 ms Min Power-On Reset
SC70 and SOT-23 Packages
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
Open-Drain RESET Output (ADM803)
Push-Pull RESET Output (ADM809)
Push-Pull RESET Output (ADM810)
CC
as low as 1 V. The ADM803 and ADM809
CC
.
CC
Microprocessor Supervisory Circuits
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
V
CC
V
V
ADM803/ADM809/ADM810
CC
CC
ADM803 / ADM809
in 3-Lead SC70 and SOT-23
Figure 1. Typical Operating Circuit
FUNCTIONAL BLOCK DIAGRAM
ADM809 / ADM810
V
V
GND
ADM803
V
REF
REF
CC
© 2003 Analog Devices, Inc. All rights reserved.
RESET
*ADM803 ONLY
GND
GND
GENERATOR
GENERATOR
RESET
RESET
240ms
240ms
*R
PULL-UP
RESET
INPUT
MICROPROCESSOR
www.analog.com
SYSTEM
GND
RESET
(RESET)
RESET
V
CC

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ADM803RAKS-REEL-7 Summary of contents

Page 1

FEATURES Specified over Temperature Low Power Consumption (17 A) Precision Voltage Monitor Options Reset Assertion Down 140 ms Min Power-On Reset Open-Drain RESET Output (ADM803) Push-Pull RESET Output ...

Page 2

ADM803/ADM809/ADM810–SPECIFICATIONS V Typ = 5 V for L/M/J models, 3.3 V for T/S models for R models, 2.5 V for Z models, unless otherwise noted.) CC Parameter V OPERATING VOLTAGE RANGE CC Supply Current RESET THRESHOLD Reset Voltage ...

Page 3

ABSOLUTE MAXIMUM RATINGS 25°C, unless otherwise noted ...

Page 4

... ADM803/ADM809/ADM810 Model Reset Threshold (V) ADM803LAKS-REEL 4.63 ADM803LAKS-REEL-7 4.63 ADM803MAKS-REEL 4.38 ADM803MAKS-REEL-7 4.38 ADM803TAKS-REEL 3.08 ADM803TAKS-REEL-7 3.08 ADM803SAKS-REEL 2.93 ADM803SAKS-REEL-7 2.93 ADM803RAKS-REEL 2.63 ADM803RAKS-REEL-7 2.63 ADM803ZAKS-REEL 2.32 ADM803ZAKS-REEL-7 2.32 ADM809LART-REEL 4.63 ADM809LART-REEL-7 4.63 ADM809LAKS-REEL 4.63 ADM809LAKS-REEL-7 4.63 ADM809MART-REEL 4.38 ADM809MART-REEL-7 4.38 ADM809MAKS-REEL 4.38 ADM809MAKS-REEL-7 4.38 ADM809JART-REEL 4.00 ADM809JART-REEL-7 4.00 ADM809JAKS-REEL 4.00 ADM809JAKS-REEL-7 4.00 ADM809TART-REEL 3.08 ADM809TART-REEL-7 3.08 ADM809TAKS-REEL 3.08 ADM809TAKS-REEL-7 3.08 ADM809SART-REEL 2.93 ADM809SART-REEL-7 2.93 ADM809SAKS-REEL 2.93 ADM809SAKS-REEL-7 2.93 ADM809RART-REEL 2.63 ADM809RART-REEL-7 2.63 ADM809RAKS-REEL 2.63 ADM809RAKS-REEL-7 2.63 ADM809ZART-REEL 2 ...

Page 5

Model Reset Threshold (V) ADM810LART-REEL 4.63 ADM810LART-REEL-7 4.63 ADM810LAKS-REEL 4.63 ADM810LAKS-REEL-7 4.63 ADM810MART-REEL 4.38 ADM810MART-REEL-7 4.38 ADM810MAKS-REEL 4.38 ADM810MAKS-REEL-7 4.38 ADM810JART-REEL 4.00 ADM810JART-REEL-7 4.00 ADM810JAKS-REEL 4.00 ADM810JAKS-REEL-7 4.00 ADM810TART-REEL 3.08 ADM810TART-REEL-7 3.08 ADM810TAKS-REEL 3.08 ADM810TAKS-REEL-7 3.08 ADM810SART-REEL 2.93 ADM810SART-REEL-7 2.93 ...

Page 6

ADM803/ADM809/ADM810–Typical Performance Characteristics –40 – TEMPERATURE ( C) TPC 1. Supply Current vs. Temperature (No Load) 200 180 160 140 120 100 –40 – ...

Page 7

ADM8_L/M/J 150 100 ADM8_R/S/T RESET COMPARATOR OVERDRIVE, V TPC 7. Maximum Transient Duration without Causing a Reset Pulse vs. Reset Comparator Overdrive INTERFACING TO OTHER DEVICES’ OUTPUT The ADM803/ADM809/ADM810 series is ...

Page 8

ADM803/ADM809/ADM810 3-Lead Thin Shrink Small Outline Transistor Package [SC70] 0.10 MAX OUTLINE DIMENSIONS 3-Lead Small Outline Transistor Package [SOT-23] (RT-3) Dimensions shown in millimeters 3.04 2.90 2.80 1.40 1.30 1.20 3 2.64 2. PIN 1 0.95 BSC 1.90 ...

Page 9

Revision History Location 6/03—Data Sheet changed from REV REV. C. Added ADM803 . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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