AD ADM706AN

Low Cost Microprocessor
Supervisory Circuits
ADM705/ADM706/ADM707/ADM708
FUNCTIONAL BLOCK DIAGRAMS
WATCHDOG
INPUT (WDI)
WATCHDOG
TRANSITION
DETECTOR
VCC
250μA
MR
4.65V*
ADM705/
ADM706
POWER-FAIL
INPUT (PFI)
WATCHDOG
OUTPUT (WDO)
RESET AND
WATCHDOG
TIMEBASE
RESET
GENERATOR
VCC
1.25V
RESET
POWER-FAIL
OUTPUT (PFO)
* VOLTAGE REFERENCE = 4.65V (ADM705), 4.40V (ADM706)
Figure 1. ADM705/ADM706
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Critical microprocessor supply monitoring
WATCHDOG
TIMER
VCC
250μA
MR
RESET
RESET
GENERATOR
VCC
4.65V*
POWER-FAIL
INPUT (PFI)
RESET
ADM707/
ADM708
POWER-FAIL
OUTPUT (PFO)
1.25V
* VOLTAGE REFERENCE = 4.65V (ADM707), 4.40V (ADM708)
00088-002
Guaranteed RESET valid with VCC = 1 V
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 sec timeout (ADM705/ADM706)
Active high reset output (ADM707/ADM708)
Voltage monitor for power-fail or low battery warning
Superior upgrade for MAX705 to MAX708
00088-001
FEATURES
Figure 2. ADM707/ADM708
GENERAL DESCRIPTION
The ADM705/ADM706/ADM707/ADM708 microprocessor
supervisory circuits are suitable for monitoring 5 V power
supplies/batteries and can also monitor microprocessor activity.
The ADM705/ADM706 provide power-supply monitoring
circuitry that generate a reset output during power-up, powerdown, and brownout conditions. The reset output remains
operational with VCC as low as 1 V. Independent watchdog
monitoring circuitry is also provided. This is activated if the
watchdog input has not been toggled within 1.60 seconds.
In addition, there is a 1.25 V threshold detector to warn of
power-failures, to detect low battery conditions, or to monitor an
additional power supply. An active low, debounced manual reset
input (MR) is also included.
The ADM705 and ADM706 are identical except for the reset
threshold monitor levels, which are 4.65 V and 4.40 V, respectively.
The ADM707 and ADM708 provide a similar functionality to
the ADM705 and ADM706 and only differ in that a watchdog
timer function is not available. Instead, an active high reset
output (RESET) is available as well as the active low reset output
(RESET). The ADM707 and ADM708 are identical except for
the reset threshold monitor levels, which are 4.65 V and 4.40 V,
respectively.
All parts are available in narrow 8-lead PDIP and 8-lead SOIC
packages.
Rev. G
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
©2008 Analog Devices, Inc. All rights reserved.
ADM705/ADM706/ADM707/ADM708
TABLE OF CONTENTS
Features .............................................................................................. 1
Power-Fail RESET Output ...........................................................8
Applications ....................................................................................... 1
Manual Reset..................................................................................8
Functional Block Diagrams ............................................................. 1
Watchdog Timer (ADM705/ADM706) .....................................8
General Description ......................................................................... 1
Power-Fail Comparator ................................................................8
Revision History ............................................................................... 2
Valid RESET Below 1 V VCC ........................................................9
Specifications..................................................................................... 3
Applications Information .............................................................. 10
Absolute Maximum Ratings............................................................ 4
Monitoring Additional Supply Levels...................................... 10
ESD Caution .................................................................................. 4
Microprocessor with Bidirectional RESET ............................. 10
Pin Configurations and Function Descriptions ........................... 5
Outline Dimensions ....................................................................... 11
Typical Performance Characteristics ............................................. 6
Ordering Guide .......................................................................... 12
Circuit Information .......................................................................... 8
REVISION HISTORY
3/08—Rev. F to Rev. G
Changes to Applications .................................................................. 1
Changes to Table 2 ............................................................................ 4
Changes to Figure 9 .......................................................................... 6
Changes to Figure 10, Figure 11, and Figure 12 ........................... 7
Changes to Figure 14 ........................................................................ 8
Changes to Ordering Guide .......................................................... 12
11/05—Rev. C to Rev. D
2/07—Rev. E to Rev. F
Removed RM-8 (μSOIC) Package .................................... Universal
Updated N-8 and R-8 Packages .......................................................8
Updated Format .................................................................. Universal
Changes to Watchdog Timeout Period .......................................... 3
Replaced Pin Configurations and Function Descriptions
Section ................................................................................................ 5
Updated Format .................................................................. Universal
Deleted Figure 2 .................................................................................4
Updated Outline Dimensions ....................................................... 11
Changes to Ordering Guide .......................................................... 12
8/02—Rev. B to Rev. C
7/06—Rev. D to Rev. E
Added RM-8 (MSOP) Package ......................................... Universal
Changes to Table 2 ............................................................................ 4
Updated Outline Dimensions ....................................................... 12
Changes to Ordering Guide .......................................................... 12
Rev. G | Page 2 of 12
ADM705/ADM706/ADM707/ADM708
SPECIFICATIONS
VCC = 4.75 V to 5.5 V, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
190
5.5
250
V
μA
4.75
4.50
V
V
mV
ms
V
V
V
V
V
V
sec
ns
Test Conditions/Comments
POWER SUPPLY
VCC Operating Voltage Range
Supply Current
1.0
LOGIC OUTPUT
Reset Threshold
Reset Threshold Hysteresis
RESET PULSE WIDTH
RESET OUTPUT VOLTAGE
4.5
4.25
160
VCC − 1.5
4.65
4.40
40
200
280
0.4
0.3
0.3
RESET OUTPUT VOLTAGE
VCC − 1.5
WATCHDOG TIMEOUT PERIOD (tWD)
WDI Pulse Width (tWP)
1.00
50
1.60
0.4
2.25
ADM705/ADM707
ADM706/ADM708
ISOURCE = 800 μA
ISINK = 3.2 mA
VCC = 1 V, ISINK = 50 μA
VCC = 1.2 V, ISINK = 100 μA
ADM707/ADM708, ISOURCE = 800 μA
ADM707/ADM708, ISINK = 1.2 mA
VIL = 0.4 V, VIH = VCC × 0.8, WDI = VCC
WATCHDOG INPUT
WDI Input Threshold
Logic Low
Logic High
WDI Input Current
WDO OUTPUT VOLTAGE
0.8
3.5
−150
VCC − 1.5
50
−50
150
0.4
V
V
μA
μA
V
V
WDI = 0 V
WDI = 0 V
ISOURCE = 800 μA
ISINK = 1.2 mA
MANUAL RESET INPUT
MR Pull-Up Current
MR Pulse Width
100
150
250
600
μA
ns
0.8
V
V
ns
MR = 0 V
MR INPUT THRESHOLD
Logic Low
Logic High
2.0
250
MR TO RESET OUTPUT DELAY
POWER-FAIL INPUT
PFI Input Threshold
PFI Input Current
PFO OUTPUT VOLTAGE
1.2
−25
VCC − 1.5
1.25
+0.01
1.3
+25
0.4
Rev. G | Page 3 of 12
V
nA
V
V
ISOURCE = 800 μA
ISINK = 3.2 mA
ADM705/ADM706/ADM707/ADM708
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 2.
Parameter
VCC
All Other Inputs
Input Current
VCC
GND
Digital Output Current
Power Dissipation, N-8 PDIP
θJA Thermal Impedance
Power Dissipation, R-8 SOIC
θJA Thermal Impedance
Power Dissipation, RM-8 MSOP
θJA Thermal Impedance
Operating Temperature Range
Industrial (Version A)
Lead Temperature (Soldering, 10 sec)
Vapor Phase (60 sec)
Infrared (15 sec)
Storage Temperature Range
ESD Rating
Rating
−0.3 V to +6 V
−0.3 V to VCC + 0.3 V
20 mA
20 mA
20 mA
727 mW
135°C/W
470 mW
110°C/W
900 mW
206°C/W
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.
ESD CAUTION
−40°C to +85°C
300°C
215°C
220°C
−65°C to +150°C
>4.5 kV
Rev. G | Page 4 of 12
ADM705/ADM706/ADM707/ADM708
ADM705/
ADM706
8
MR 1
WDO
VCC 2
7 RESET
ADM707/
ADM708
8
RESET
RESET
1
7
RESET
RESET
2
MR
3
VCC
4
GND 3
6 NC
TOP VIEW
PFI 4 (Not to Scale) 5 PFO
GND 3
00088-003
6 WDI
TOP VIEW
PFI 4 (Not to Scale) 5 PFO
NC = NO CONNECT
00088-004
MR 1
VCC 2
Figure 4. ADM707/ADM708 PDIP/SOIC
Pin Configuration
Figure 3. ADM705/ADM706 PDIP/SOIC
Pin Configuration
ADM708
8
NC
7
PFO
6 PFI
TOP VIEW
(Not to Scale) 5 GND
NC = NO CONNECT
00088-005
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 5. ADM708 MSOP
Pin Configuration
Table 3. Pin Function Descriptions
Pin Number
ADM707/
ADM708
(PDIP, SOIC)
1
Mnemonic
MR
ADM705/
ADM706
(PDIP, SOIC)
1
VCC
GND
PFI
2
3
4
2
3
4
4
5
6
PFO
5
5
7
WDI
6
N/A
N/A
NC
RESET
N/A
7
6
7
8
1
WDO
8
N/A
N/A
RESET
N/A
8
2
ADM708
(MSOP)
3
Description
Manual Reset Input. When this pin is taken below 0.8 V, a reset is generated.
MR can be driven from TTL, CMOS logic, or from a manual reset switch as it is
internally debounced. An internal 250 μA pull-up current holds the input high
when floating.
5 V Power Supply Input.
0 V Ground Reference for All Signals.
Power-Fail Input. PFI is the noninverting input to the power-fail comparator.
When PFI is less than 1.25 V, PFO goes low. If unused, PFI should be connected
to GND or VCC.
Power-Fail Output. PFO is the output from the power-fail comparator. It goes
low when PFI is less than 1.25 V.
Watchdog Input. WDI is a three-level input. If WDI remains either high or low
for longer than the watchdog timeout period, the watchdog output (WDO)
goes low. The timer resets with each transition at the WDI input. Either a highto-low or a low-to-high transition clears the counter. The internal timer is also
cleared whenever reset is asserted. The watchdog timer is disabled when WDI
is left floating or connected to a three-state buffer.
No Connect.
Logic Output. RESET goes low for 200 ms when triggered. It can be triggered either by VCC being below the reset threshold or by a low signal on the
manual reset input (MR). RESET remains low whenever VCC is below the reset
threshold (4.65 V in ADM705/ADM707, 4.40 V in ADM706/ADM708). It remains
low for 200 ms after VCC goes above the reset threshold or MR goes from low to
high. A watchdog timeout does not trigger RESET unless WDO is connected to MR.
Watchdog Output. WDO remains low until the watchdog timer is cleared. WDO
also goes low during low line conditions. Whenever VCC is below the reset
threshold, WDO goes low if the internal WDO remains low. As soon as VCC goes
above the reset threshold, WDO goes high.
Logic Output. RESET is an active high output suitable for systems that use
active high reset logic. It is the inverse of RESET.
Rev. G | Page 5 of 12
ADM705/ADM706/ADM707/ADM708
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 5V
TA = 25°C
A1
VCC
4.50V
1.3V
PFI
100
1.2V
90
5V
10
0V
0%
1V
1V
500msH O
00088-012
RESET
500ns/DIV
Figure 8. PFI Comparator Assertion Response Time
Figure 6. RESET Output Voltage vs. Supply Voltage
VCC = 5V
TA = 25°C
A1
VCC
4.50V
1.3V
PFI
100
1.2V
90
RESET
4.4V
PFO
10
1V
500msH O
00088-013
1V
00088-015
0V
0%
500ns/DIV
Figure 7. ADM707/ADM708 RESET Output Voltage vs. Supply Voltage
Rev. G | Page 6 of 12
Figure 9. PFI Comparator Deassertion Response Time
00088-014
PFO
ADM705/ADM706/ADM707/ADM708
TA = 25°C
5V
5V
5V
RESET
RESET
VCC
4V
VCC = VRT
TA = 25°C
5V
RESET
0V
0V
2μs/DIV
100ns/DIV
Figure 10. RESET, RESET Assertion
Figure 12. ADM705/ADM707 RESET Response Time
5V
5V
RESET
RESET
VCC = VRT
TA = 25°C
0V
00088-017
0V
100ns/DIV
Figure 11. RESET, RESET Deassertion
Rev. G | Page 7 of 12
00088-018
00088-016
0V
ADM705/ADM706/ADM707/ADM708
CIRCUIT INFORMATION
RESET is an active low output that provides a reset signal to
the microprocessor whenever the VCC input is below the reset
threshold. An internal timer holds RESET low for 200 ms after
the voltage on VCC rises above the threshold. This functions as a
power-on reset signal for the microprocessor. It allows time for
both the power supply and the microprocessor to stabilize after
power-up. The RESET output is guaranteed to remain valid
(low) with VCC as low as 1 V. This ensures that the microprocessor is held in a stable shutdown condition as the power
supply voltage ramps up.
In addition to RESET, an active high RESET output is also
available on the ADM707/ADM708. This is the complement
of RESET and is useful for processors requiring an active high
reset signal.
When VCC falls below the reset threshold, WDO is forced low
whether or not the watchdog timer has timed out. Normally, this
generates an interrupt, but it is overridden by RESET going low.
The watchdog monitor can be deactivated by floating the
watchdog input (WDI). The WDO can then be used as a low
line output, because it goes low only when VCC falls below the
reset threshold.
tWP
tWD
tWD
tWD
WDI
WDO
RESET EXTERNALLY
TRIGGERED BY MR
RESET
00088-008
POWER-FAIL RESET OUTPUT
tRS
Figure 14. Watchdog Timing
MANUAL RESET
POWER-FAIL COMPARATOR
The manual reset input (MR) allows other reset sources, such
as a manual reset switch, to generate a processor reset. The
input is effectively debounced by the timeout period (200 ms
typical). The MR input is TTL-/CMOS-compatible, so it can
also be driven by any logic reset output.
The power-fail comparator is an independent comparator that
can be used to monitor the input power supply. The comparator’s
inverting input is internally connected to a 1.25 V reference
voltage. The noninverting input is available at the PFI input.
This input can be used to monitor the input power supply via
a resistive divider network. When the voltage on the PFI input
drops below 1.25 V, the comparator output (PFO) goes low,
indicating a power failure. For early warning of power failure,
the comparator can be used to monitor the preregulator input
simply by choosing an appropriate resistive divider network.
The PFO output can be used to interrupt the processor so that
a shutdown procedure is implemented before power is lost.
VRT
VRT
tRS
tRS
RESET
MR EXTERNALLY
DRIVEN LOW
00088-007
MR
WDO
INPUT
POWER
R1
1.25V
PFO
Figure 13. RESET, MR, and WDO Timing
WATCHDOG TIMER (ADM705/ADM706)
R2
The watchdog timer circuit can be used to monitor the activity of
the microprocessor to check that it is not stalled in an indefinite
loop. An output line on the processor is used to toggle the watchdog input (WDI) line. If this line is not toggled within the timeout
period (1.60 sec), then the watchdog output (WDO) goes low.
The WDO can be connected to a nonmaskable interrupt (NMI)
on the processor; therefore, if the watchdog timer times out, an
interrupt is generated. The interrupt service routine should then
be used to rectify the problem.
If a RESET signal is required when a timeout occurs, the WDO
should be connected to the manual reset input (MR).
The watchdog timer is cleared by either a high-to-low or a lowto-high transition on WDI. It is also cleared by RESET going
low; therefore, the watchdog timeout period begins after RESET
goes high.
Rev. G | Page 8 of 12
POWER-FAIL PFI
INPUT
ADM705/ADM706/
ADM707/ADM708
Figure 15. Power-Fail Comparator
POWER-FAIL
OUTPUT
00088-009
VCC
ADM705/ADM706/ADM707/ADM708
Adding Hysteresis to the Power-Fail Comparator
VALID RESET BELOW 1 V VCC
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 input, as shown in
Figure 16.
The ADM705/ADM706/ADM707/ADM708 are guaranteed to
provide a valid reset level with VCC as low as 1 V (see the Typical
Performance Characteristics section). As VCC drops below 1 V,
the internal transistor does not have sufficient drive to hold the
voltage RESET at 0 V. A pull-down resistor can be connected
externally, as shown in Figure 17, to hold the line low if
required.
5V
ADP3367
VCC
R1
1.25V
–
+
PFI
ADM705/ADM706/
ADM707/ADM708
R2
ADM705/ADM706/
ADM707/ADM708
PFO
TO
MICROPROCESSOR
NMI
R3
VIN
VH
00088-010
PFO
0V VL
GND
R1
Figure 17. RESET Valid Below 1 V
5V
0V
RESET
Figure 16. Adding Hysteresis to the Power-Fail Comparator
When PFO is low, Resistor R3 sinks current from the summing
junction at the PFI pin. When PFO is high, Resistor R3 sources
current into the PFI summing junction. This results in differing
trip levels for the comparator. Further noise immunity can be
achieved by connecting a capacitor between PFI and GND. The
equations used to calculate the hysteresis are as follows:
R2 + R3 ⎞ ⎤
⎡
VH = 1.25⎢1 + ⎛⎜
⎟R1⎥
⎣ ⎝ R2 × R3 ⎠ ⎦
⎛ 1.25 VCC − 1.25 ⎞
−
VL = 1.25 + R1⎜
⎟
R3
⎝ R2
⎠
+
R1
R2
⎞
V MID = 1.25⎛⎜
⎟
⎝ R2 ⎠
Rev. G | Page 9 of 12
00088-011
7V TO 15V
INPUT
POWER
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 drops below the
desired level (such as 8 V), the voltage on PFI drops below
the 1.25 V threshold, thereby generating an interrupt to the
microprocessor. Monitoring the preregulator input provides
additional time to execute an orderly shutdown procedure
before power is lost.
7V TO 15V
INPUT POWER
MONITORING ADDITIONAL SUPPLY LEVELS
It is possible to use the power-fail comparator to monitor a
second supply as shown in Figure 20. The two sensing resistors,
R1 and R2, are selected so that the voltage on PFI drops below
1.25 V at the minimum acceptable input supply. PFO can be
connected to MR so that a reset is generated when the supply
drops out of tolerance. In this case, if either supply drops out
of tolerance, a reset is generated.
VX
5V
ADP3367
5V
VCC
VCC
–
RESET
PFO
ADM705/ADM706/
ADM707/ADM708
R2
R1
RESET
+
PFI
ADM705/
ADM706
RESET
MICROPROCESSOR
PFI
MICROPROCESSOR
MR
R2
GND
PFO
00088-022
1.25V
00088-020
R1
Figure 18. Typical Application Circuit
Microprocessor activity is monitored using WDI. This is driven
using an output line from the processor. The software routines
should toggle this line at least once every 1.60 seconds. If a
problem occurs and this line is not toggled, WDO goes low and
a nonmaskable interrupt is generated. This interrupt routine can be
used to clear the problem.
If, in the event of inactivity on the WDI line, a system reset
is required, WDO should be connected to MR, as shown in
Figure 19.
Figure 20. Monitoring 5 V and an Additional Supply, VX
MICROPROCESSOR WITH BIDIRECTIONAL RESET
To prevent contention for microprocessors with a bidirectional
reset line, a current limiting resistor should be inserted between
the ADM70x RESET output pin and the microprocessor RESET
pin. This limits the current to a safe level if there are conflicting
output reset levels. A suitable resistor value is 4.7 kΩ. If the reset
output is required for other uses, it should be buffered, as shown in
Figure 21.
5V
ADM705/
ADM706
WDI
MICROPROCESSOR
VCC
I/O LINE
ADM70x
WDO
GND
00088-021
MR
BUFFERED
RESET
RESET
RESET
GND
MICROPROCESSOR
RESET
GND
Figure 19. RESET From WDO
Figure 21. Bidirectional Input/Output RESET
Rev. G | Page 10 of 12
00088-023
RESET
ADM705/ADM706/ADM707/ADM708
OUTLINE DIMENSIONS
0.400 (10.16)
0.365 (9.27)
0.355 (9.02)
8
5
1
4
0.280 (7.11)
0.250 (6.35)
0.240 (6.10)
0.325 (8.26)
0.310 (7.87)
0.300 (7.62)
PIN 1
0.100 (2.54)
BSC
0.060 (1.52)
MAX
0.210
(5.33)
MAX
0.150 (3.81)
0.130 (3.30)
0.115 (2.92)
0.195 (4.95)
0.130 (3.30)
0.115 (2.92)
0.015
(0.38)
MIN
0.015 (0.38)
GAUGE
PLANE
SEATING
PLANE
0.022 (0.56)
0.018 (0.46)
0.014 (0.36)
0.005 (0.13)
MIN
0.430 (10.92)
MAX
0.014 (0.36)
0.010 (0.25)
0.008 (0.20)
0.070 (1.78)
0.060 (1.52)
0.045 (1.14)
COMPLIANT TO JEDEC STANDARDS MS-001-BA
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS.
Figure 22. 8-Lead Plastic Dual-in-Line Package [PDIP]
Narrow Body
(N-8)
Dimensions shown in inches and (millimeters)
3.20
3.00
2.80
5.00 (0.1968)
4.80 (0.1890)
8
4.00 (0.1574)
3.80 (0.1497) 1
5
1.27 (0.0500)
BSC
0.25 (0.0098)
0.10 (0.0040)
6.20 (0.2440)
4 5.80 (0.2284)
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
COPLANARITY
SEATING 0.31 (0.0122)
0.10
PLANE
8
3.20
3.00
2.80
0.50 (0.0196)
× 45°
0.25 (0.0099)
1
5
5.15
4.90
4.65
4
PIN 1
0.65 BSC
8°
0.25 (0.0098) 0° 1.27 (0.0500)
0.40 (0.0157)
0.17 (0.0067)
COMPLIANT TO JEDEC STANDARDS MS-012-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
0.95
0.85
0.75
1.10 MAX
0.15
0.00
0.38
0.22
COPLANARITY
0.10
0.23
0.08
8°
0°
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MO-187-AA
Figure 23. 8-Lead Standard Small Outline Package [SOIC_N]
(R-8)
Dimensions shown in millimeters and (inches)
Rev. G | Page 11 of 12
Figure 24. 8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
0.80
0.60
0.40
ADM705/ADM706/ADM707/ADM708
ORDERING GUIDE
Model
ADM705AN
ADM705ANZ 1
ADM705AR
ADM705AR–REEL
ADM705AR–REEL7
ADM705ARZ1
ADM705ARZ–REEL1
ADM705ARZ–REEL71
ADM706AN
ADM706ANZ1
ADM706AR
ADM706AR-REEL
ADM706AR-REEL7
ADM706ARZ1
ADM706ARZ-REEL1
ADM706ARZ-REEL71
ADM707AN
ADM707ANZ1
ADM707AR
ADM707AR-REEL
ADM707ARZ1
ADM707ARZ-REEL1
ADM708AN
ADM708ANZ1
ADM708AR
ADM708AR-REEL
ADM708ARZ1
ADM708ARZ-REEL1
ADM708ARM
ADM708ARM-REEL
ADM708ARMZ1
ADM708ARMZ-REEL1
1
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
Package Description
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Plastic Dual-in-Line Package [PDIP]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Standard Small Outline Package [SOIC_N]
8-Lead Mini Small Outline Package [MSOP]
8-Lead Mini Small Outline Package [MSOP]
8-Lead Mini Small Outline Package [MSOP]
8-Lead Mini Small Outline Package [MSOP]
Z = RoHS Compliant Part.
©2008 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D00088-0-3/08(G)
Rev. G | Page 12 of 12
Package Option
N-8
N-8
R-8
R-8
R-8
R-8
R-8
R-8
N-8
N-8
R-8
R-8
R-8
R-8
R-8
R-8
N-8
N-8
R-8
R-8
R-8
R-8
N-8
N-8
R-8
R-8
R-8
R-8
RM-8
RM-8
RM-8
RM-8
Branding
AD70, M8
AD70, M8
M8F
M8F