Data Sheet
FEATURES
Specified over temperature
Low power consumption (12 μA)
Precision monitoring of 2.5 V, 3 V, 3.3 V,
and 5 V power supply voltages
Reset timeout period of 140 ms (minimum)
Manual reset input
Output stages
Push-pull RESET output (ADM6711)
Open-drain RESET output (ADM6713)
Reset assertion down to 1 V V
CC
Power supply glitch immunity
4-lead SC70 package
Microprocessor Supervisory
Circuit in 4-Lead SC70
ADM6711/ADM6713
FUNCTIONAL BLOCK DIAGRAMS
ADM6711
V
CC
V
REF
RESET
GENERATOR
240ms
RESET
Figure 1.
ADM6713
V
CC
V
REF
RESET
GENERATOR
240ms
RESET
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Automotive systems
MR
Figure 2.
GENERAL DESCRIPTION
The
ADM6711/ADM6713
are reset generator circuits suitable
for use in microprocessor-based systems. They provide a reset
signal on power-up, power-down, and whenever the supply
voltage falls below a preset threshold. In addition, both parts
have a debounced manual reset input so that a reset signal can
also be initiated with an external switch or logic signal.
With six different reset threshold options available ranging from
2.32 V to 4.63 V, the
ADM6711/ADM6713
are suitable for
monitoring 2.5 V, 3 V, 3.3 V, and 5 V supplies. A reset timeout
of at least 140 ms occurs when V
CC
rises above the threshold.
This gives the supply voltage time to stabilize before the
microprocessor starts up.
The
ADM6711
has a push-pull output, so no additional external
components are needed. The
ADM6713
open-drain output
requires an external pull-up resistor that can be connected to
a voltage higher than V
CC
, if desired.
The parts are highly reliable with accurate voltage references
and immunity to fast, negative-going transients on V
CC
. Low
current consumption and space-efficient, 4-lead SC70 packaging
make the
ADM6711/ADM6713
ideal for use in low power
portable applications.
V
CC
*R
PULL-UP
V
CC
ADM6711/
ADM6713
MR
RESET
MICROPROCESSOR
SYSTEM
RESET
GND
*ADM6713 ONLY
GND
03754-002
Figure 3. Typical Operating Circuit
Rev. B
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. Specifications subject to change without notice. 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 owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2006–2011 Analog Devices, Inc. All rights reserved.
03754-001
DEBOUNCE
GND
03754-011
MR
DEBOUNCE
GND
ADM6711/ADM6713
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Data Sheet
Typical Performance Characteristics ..............................................7
Circuit Description............................................................................8
Manual Reset Input .......................................................................8
Power Supply Glitch Immunity ...................................................8
ADM6713 RESET Output Logic Levels .....................................8
Ensuring a Valid RESET Output Down To V
CC
= 0 V ............8
Outline Dimensions ..........................................................................9
Ordering Guide .............................................................................9
REVISION HISTORY
9/11—Rev. A to Rev. B
Changes to Input Threshold Parameter, Table 1 .......................... 4
Updated Outline Dimensions ......................................................... 9
12/06—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Changes to Specifications Table...................................................... 3
Changes to Figure 10........................................................................ 8
Changes to Ordering Guide ............................................................ 9
8/03—Revision 0: Initial Version
Rev. B | Page 2 of 12
Data Sheet
SPECIFICATIONS
ADM6711/ADM6713
V
CC
= full operating range; T
A
= T
MIN
to T
MAX
; V
CC
typ = 5 V for L/M models, 3.3 V for T/S models, 3 V for R models, and 2.5 V for Z models,
unless otherwise noted.
Table 1.
Parameter
SUPPLY
V
CC
Operating Voltage Range
Supply Current
Min
1.0
1.2
16
12
Typ
Max
5.5
5.5
35
30
60
60
RESET VOLTAGE THRESHOLD
ADM671_L
Unit
V
V
μA
μA
μA
μA
Test Conditions/Comments
T
A
= 0°C to 70°C
T
A
= −40°C to +125°C
V
CC
< 5.5 V, ADM671_L/M,
T
A
= −40°C to +85°C
V
CC
< 3.6 V, ADM671_R/S/T/Z,
T
A
= −40°C to +85°C
V
CC
< 5.5 V, ADM671_L/M,
T
A
= 85°C to 125°C
V
CC
< 3.6 V, ADM671_R/S/T/Z,
T
A
= 85°C to 125°C
T
A
= 25°C
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
T
A
= 25°C
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
T
A
= 25°C
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
T
A
= 25°C
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
T
A
= 25°C
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
T
A
= 25°C
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
V
CC
= V
TH
to (V
TH
− 100 mV)
T
A
= −40°C to +85°C
T
A
= 85°C to 125°C
ADM671_M
ADM671_T
ADM671_S
ADM671_R
ADM671_Z
4.56
4.50
4.44
4.31
4.25
4.20
3.04
3.00
2.95
2.89
2.85
2.81
2.59
2.55
2.52
2.28
2.25
2.22
4.63
4.38
3.08
2.93
2.63
2.32
4.70
4.75
4.82
4.45
4.50
4.56
3.11
3.15
3.21
2.96
3.00
3.05
2.66
2.70
2.74
2.35
2.38
2.42
RESET THRESHOLD TEMPERATURE COEFFICIENT
V
CC
to RESET DELAY
RESET ACTIVE TIMEOUT PERIOD
RESET OUTPUT VOLTAGE
Low (ADM6711/ADM6713)
140
100
30
20
240
460
640
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ppm/°C
μs
ms
ms
0.3
0.4
0.3
V
V
V
V
V
High (ADM6711)
0.8 V
CC
0.8 V
CC
V
CC
= V
TH
min, I
SINK
= 1.2 mA,
ADM671_R/S/T/Z
V
CC
= V
TH
min, I
SINK
= 3.2 mA,
ADM671_L/M
V
CC
>1.0 V, I
SINK
= 50 μA
V
CC
> V
TH
max, I
SOURCE
= 500 μA,
ADM6711R/S/T/Z
V
CC
> V
TH
max, I
SOURCE
= 800 μA,
ADM6711L/M
Rev. B | Page 3 of 12
ADM6711/ADM6713
Parameter
RESET OPEN-DRAIN OUTPUT LEAKAGE CURRENT
MANUAL RESET (MR)
Input Threshold
Pull-Up Resistance
Minimum Pulse width
Glitch Immunity
Reset Delay
0.7 V
CC
10
1
20
100
200
Min
Typ
Max
1
0.3 V
CC
Unit
μA
V
V
kΩ
μs
ns
ns
Data Sheet
Test Conditions/Comments
V
CC
> V
TH
, RESET deasserted
V
IL
V
IH
Rev. B | Page 4 of 12
Data Sheet
ABSOLUTE MAXIMUM RATINGS
T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter
V
CC
RESET (Push-Pull)
RESET (Open-Drain)
MR
Input Current
V
CC
, MR
Output Current
RESET
Rate of Rise, V
CC
θ
JA
Thermal Impedance, SC70
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
Rating
−0.3 V to +6 V
−0.3 V to (V
CC
+ 0.3 V)
−0.3 V to +6 V
−0.3 V to (V
CC
+ 0.3 V)
20 mA
20 mA
100 V/μs
146°C/W
−40°C to +125°C
−65°C to +150°C
300°C
ADM6711/ADM6713
Table 3. RESET Threshold Options
Model
ADM671_L
ADM671_M
ADM671_T
ADM671_S
ADM671_R
ADM671_Z
RESET Threshold (V)
4.63
4.38
3.08
2.93
2.63
2.32
ESD CAUTION
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Rev. B | Page 5 of 12
工控电子
