ANALOG DEVICES ADM13305 Service Manual

Dual Processor

www.BDTIC.com/ADI

FEATURES

Dual supervisory circuits
Supply voltage range of 2.7 V to 5.5 V
Pretrimmed threshold options: 1.8 V, 2.5 V, 3.3 V, and 5 V
Adjustable 0.6 V voltage reference
Maximum supply current of 40 μA
140 ms (minimum) reset timeout
Watchdog timer with 1.6 sec (typical) timeout
RESET valid from V
Push-pull RESET and
8-lead, narrow body SOIC package
Temperature range: −40°C to +85°C

APPLICATIONS

Supervising DSPs/microcontrollers
Industrial and portable equipment
Wireless systems
Notebook/desktop computers

GENERAL DESCRIPTION

The ADM13305 is a dual voltage supervisor designed to
monitor two supplies and provide a reset signal to DSP and
microprocessor-based systems.

There are five models available, all of which feature a combination
of internally pretrimmed undervoltage threshold options for
monitoring 1.8 V, 2.5 V, 3.3 V, and 5 V supplies. There is also
an adjustable input option with an undervoltage threshold voltage
of 0.6 V.

The ADM13305-18, ADM13305-25, and ADM13305-33 models
have two internally fixed thresholds. The ADM13305-4 and
ADM13305-5 offer one internally fixed threshold and one
externally programmable threshold via a resistor string. See
the Ordering Guide for a list of all available options.

During power-up,
exceeds 1.1 V. The device then monitors the SENSEv input pins
and holds the
inputs remains below the rising threshold voltage, V

Once the supplies monitored at the SENSEv inputs rise above
their associated thresholds, the reset signal remains low for
the reset timeout period before deasserting. Subsequently, if a
voltage monitored by the SENSEv pins falls below its associ­ated falling threshold, V
ADM13305 features both an active high RESET and an active

RESET

low

output.

≥ 1.1 V

DD

RESET

outputs

RESET

is asserted when the supply voltage

RESET

output low as long as either of the SENSEv

RESET

IT−

, the

output asserts. The

IT+

.

Supervisors with Watchdog

ADM13305

FUNCTIONAL BLOCK DIAGRAMS

ADM13305-18

V

DD

14kΩ

MR

SENSE1

SENSE2

GND

SENSE1

GND

SENSE2

WDI

V

MR

WDI

R1

R2

R3

DD

R1

TRANSITIO N

DETECTIO N

14kΩ

R2

TRANSITIO N

DETECTIO N

R4

1.25V

0.6V

WATCHDOG

LOGIC + TIMER

Figure 1.

WATCHDOG

LOGIC + TIMER

Figure 2. .

As well as providing power-on reset signals, an on-chip watchdog
timer can reset the microprocessor if it fails to strobe within the
preset timeout period. A reset signal can also be asserted by an
external push button through the manual reset input pin.

The ADM13305 is available in an 8-lead, narrow body SOIC
package. The device operates over the extended industrial
temperature range of −40°C to +85°C.

ADM13305-25
ADM13305-33

RESET

LOGIC + TIMER

OSCILLATOR

ADM13305-4
ADM13305-5

RESET

LOGIC + TIMER

OSCILLATOR

RESET

RESET

RESET

RESET

06922-002

06922-001

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 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: [phone] www.analog.com
Fax: [phone] ©2007 Analog Devices, Inc. All rights reserved.

ADM13305

www.BDTIC.com/ADI

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1 

General Description ......................................................................... 1

Functional Block Diagrams ............................................................. 1

Revision History ............................................................................... 2

Specifications ..................................................................................... 3

Timing Requirements .................................................................. 5

Switching Characteristics ............................................................ 5

Functional Truth Table ................................................................ 5

Absolute Maximum Ratings ............................................................ 6

Thermal Resistance ...................................................................... 6

REVISION HISTORY

8/07—Revision 0: Initial Version

ESD Caution...................................................................................6

Pin Configuration and Function Descriptions ..............................7

Typical Performance Characteristics ..............................................8

Theory of Operation ...................................................................... 10

Input Configuration ................................................................... 10

Reset Output ............................................................................... 10

Watchdog Timer ......................................................................... 10

Manual Reset (MR) .................................................................... 11

Outline Dimensions ....................................................................... 12

Ordering Guide .......................................................................... 12

Rev. 0 | Page 2 of 12

ADM13305

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SPECIFICATIONS

VDD = 2.7 V to 5.5 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.

Table 1. ADM13305-18, ADM13305-25, and ADM13305-33

Parameter Min Typ Max Unit Test Conditions/Comments

OPERATING VOLTAGE RANGE, VDD 2.7 5.5 V
SUPPLY CURRENT, IDD 40 µA
INPUT CAPACITANCE, CI 10 pF VI = 0 V to VDD
RESET, RESET OUTPUT

High Level Output Voltage, VOH V
V
V
Low Level Output Voltage, VOL 0.2 V IOL = 20 µA

0.4 V IOL = 2 mA, VDD = 3.3 V

0.4 V IOL = 3 mA, VDD = 5.5 V
Power-Up Reset Voltage

1

SENSE INPUTS

Falling Threshold Voltage, V

1.64 1.68 1.72 V TA = 0°C to 85°C

IT−

2.20 2.25 2.30 V TA = 0°C to 85°C

2.86 2.93 3.00 V TA = 0°C to 85°C

4.46 4.55 4.64 V TA = 0°C to 85°C

1.64 1.68 1.73 V TA = −40°C to +85°C

2.20 2.25 2.32 V TA = −40°C to +85°C

2.86 2.93 3.02 V TA = −40°C to +85°C

4.46 4.55 4.67 V TA = −40°C to +85°C
Hysteresis at SENSEv Inputs, V

15 mV V

HYS

20 mV V
30 mV V
40 mV V

WDI

Average High Level Input Current, I
Average Low Level Input Current, I

100 150 µA WDI = VDD = 5.5 V

H(AV)

−15 −20 µA WDI = 0 V, VDD = 5.5 V

L(AV)

INPUT VOLTAGE AT MR AND WDI

High Level, VIH 0.7 × VDD V

Low Level, VIL 0.3 × VDD V
INPUT TRANSITION RISE AND FALL RATE AT MR

HIGH LEVEL INPUT CURRENT, IH

WDI 120 170 µA WDI = VDD = 5.5 V

MR

SENSE1 5 8 µA SENSE1 = VDD = 5.5 V

SENSE2 6 9 µA SENSE2 = VDD = 5.5 V
LOW LEVEL INPUT CURRENT, IL

WDI −120 −170 µA WDI = 0 V, VDD = 5.5 V

MR

SENSEv −1 +1 µA SENSE1, SENSE2 = 0 V

1

The lowest supply voltage at which

RESET

becomes active. t

− 0.2 V IOH = −20 µA

DD

− 0.4 V IOH = −2 mA, VDD = 3.3 V

DD

− 0.4 V IOH = −3 mA, VDD = 5.5 V

DD

0.4 V IOL = 20 µA, VDD ≥ 1.1 V

= 1.68 V

IT−

= 2.25 V

IT−

= 2.93 V

IT−

= 4.55 V

IT−

50 ns/V

−130 −180 µA

−430 −600 µA

, VDD ≥ 15 s/V.

r

= 0.7 × VDD, VDD = 5.5 V

MR

= 0 V, VDD = 5.5 V

MR

Rev. 0 | Page 3 of 12

ADM13305

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VDD = 2.7 V to 5.5 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.

Table 2. ADM13305-4 and ADM13305-5

Parameter Min Typ Max Unit Test Conditions/Comments

OPERATING VOLTAGE RANGE, VDD 2.7 5.5 V
SUPPLY CURRENT, IDD 40 µA
INPUT CAPACITANCE, CI 10 pF VI = 0 V to VDD
RESET, RESET OUTPUT

High-Level Output Voltage, VOH V
V
V
Low-Level Output Voltage, VOL 0.2 V IOH = 20 µA

0.4 V IOH = 2 mA, VDD = 3.3 V

0.4 V IOH = 3 mA, VDD = 5.5 V
Power-Up Reset Voltage

1

SENSEv INPUTS

Falling Input Threshold Voltage, V

0.5952 0.6 0.6048 V TA = −40°C to +85°C

IT−

2.23 2.25 2.29 V TA = −40°C to +85°C

2.90 2.93 2.98 V TA = −40°C to +85°C
Hysteresis at SENSEv Inputs, V

0 mV V

HYS

20 mV V
30 mV V

WDI

Average High Level Input Current, I
Average Low Level Input Current, I

100 150 µA WDI = VDD = 5.5 V

H(AV)

−15 −20 µA WDI = 0 V, VDD = 5.5 V

L(AV)

INPUT VOLTAGE AT MR AND WDI

High Level, VIH 0.7 × VDD V

Low Level, VIL 0.3 × VDD V
INPUT TRANSITION RISE AND FALL RATE AT MR

HIGH LEVEL INPUT CURRENT, IH

WDI 120 170 µA WDI = VDD = 5.5 V

MR

SENSE1 5 8 µA SENSE1 = VDD = 5.5 V

SENSE2 −50 +50 nA SENSE2 = VDD = 5.5 V
LOW LEVEL INPUT CURRENT, IL

WDI −120 −170 µA WDI = 0 V, VDD = 5.5 V

MR

SENSEv −1 +1 µA SENSE1, SENSE2 = 0 V

1

The lowest supply voltage at which

RESET

becomes active. tr, VDD ≥ 15 µs/V.

− 0.2 V IOH = −20 µA

DD

− 0.4 V IOH = −2 mA, VDD = 3.3 V

DD

− 0.4 V IOH = −3 mA, VDD = 5.5 V

DD

0.4 V IOH = 20 µA, VDD ≥ 1.1 V

= 0.6 V

IT−

= 2.25 V

IT−

= 2.93 V

IT−

50 ns/V

−130 −180 µA

−430 −600 µA

= 0.7 × VDD, VDD = 5.5 V

MR

= 0 V, VDD = 5.5 V

MR

Rev. 0 | Page 4 of 12

ADM13305

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TIMING REQUIREMENTS

VDD = 2.7 V to 5.5 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C.

Table 3. ADM13305-18, ADM13305-25 and ADM13305-33

Parameter Min Typ Max Unit Test Conditions/Comments

PULSE WIDTH (tw)

SENSEv 6 µs V
MR

100 ns VIH = 0.7 × VDD, VIL = 0.3 × VDD

WDI 100 ns VIH = 0.7 × VDD, VIL = 0.3 × VDD

Table 4. ADM13305-4 and ADM13305-5

Parameter Min Typ Max Unit Test Conditions/Comments

PULSE WIDTH (tw)

SENSEv 30 µs V
MR

100 ns VIH = 0.7 × VDD, VIL = 0.3 × VDD

WDI 100 ns VIH = 0.7 × VDD, VIL = 0.3 × VDD

SWITCHING CHARACTERISTICS

VDD = 2.7 V to 5.5 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C.

Table 5. ADM13305-18, ADM13305-25 and ADM13305-33

Parameter Min Typ Max Unit Test Conditions/Comments

Watchdog Timeout (t
Delay Time (td) 140 200 280 ms
Propagation Delay, High-to-Low, MR to RESET1/RESET (t
Propagation Delay, Low-to-High, MR to RESET/RESET1 (t
Propagation Delay, High-to-Low, SENSEv to RESET1/RESET (t
Propagation Delay, Low-to-High, SENSEv to RESET/RESET1 (t

1

The reset timeout delay of 200 ms masks the propagation delay.

) 1.1 1.6 2.3 sec

t(OUT)

200 500 ns V

)

PHL

200 500 ns V

)

PLH

1 5 µs

)

PHL

1 5 µs

)

PLH

SENSEvL

= V

IT−

SENSEvL

V

I(SENSEv)

V

I(SENSEv)

I(SENSEv)

I(SENSEv)

VIH = V
VIH = V

− 0.3 V, V

= V

IT−

≥ V
≥ V

≥ V

IT+

≥ V

IT+

+ 0.3 V, VIL = V

IT+

+ 0.3 V, VIL = V

IT+

= V

SENSEvH

− 0.3 V, V

+ 0.2 V, MR ≥ 0.7 × VDD

IT+

+ 0.2 V, MR ≥ 0.7 × VDD

IT+

IT+

SENSEvH

+ 0.3 V

= V

IT+

+ 0.3 V

+ 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD
+ 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD

− 0.3 V, MR ≥ 0.7 × VDD

IT−

− 0.3 V, MR ≥ 0.7 × VDD

IT−

Table 6. ADM13305-4 and ADM13305-5

Parameter Min Typ Max Unit Test Conditions/Comments

Watchdog Timeout (t
Delay Time (td) 140 200 280 ms
Propagation Delay, High-to-Low, MR to RESET1/RESET (t
Propagation Delay, Low-to-High, MR to RESET/RESET1 (t
Propagation Delay, High-to-Low, SENSEv to RESET1/RESET (t
Propagation Delay, Low-to-High, SENSEv to RESET/RESET1 (t

1

The reset timeout delay of 200 ms masks the propagation delay.

) 1.1 1.6 2.3 sec

t(out)

200 500 ns V

)

PHL

200 500 ns V

)

PLH

30 µs

)

PHL

30 µs

)

PLH

V

I(SENSEv)

V

I(SENSEv)

I(SENSEv)

I(SENSEv)

VIH = V
VIH = V

≥ V

+ 0.2 V, MR ≥ 0.7 × VDD

IT+

≥ V

+ 0.2 V, MR ≥ 0.7 × VDD

IT+

≥ V

+ 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD

IT+

≥ V

+ 0.2 V, VIH ≥ 0.7 × VDD, VIL ≥ 0.3 × VDD

IT+

+ 0.3 V, VIL = V

IT+

+ 0.3 V, VIL = V

IT+

− 0.3 V, MR ≥ 0.7 × VDD

IT−

− 0.3 V, MR ≥ 0.7 × VDD

IT−

FUNCTIONAL TRUTH TABLE

Table 7.

SENSE1 > V

MR

L X1 X
H 0 0 L H
H 0 1 L H
H 1 0 L H
H 1 1 H L

1

X = don’t care.

SENSE2 > V

IT1

1

L H

IT2

Rev. 0 | Page 5 of 12

RESET

RESET

ADM13305

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ABSOLUTE MAXIMUM RATINGS

Table 8.

Parameter Rating

Supply Voltage Range, VDD −0.3 V to +6 V
MR , WDI
SENSE1, SENSE2 (VDD + 0.3 V)VIT/V
RESET, RESET
Maximum Low Output Current 5 mA
Maximum High Output Current −5 mA
Input Clamp Current (VI < 0 V, VI > VDD) ±20 mA
Output Clamp Current (VO < 0 V, VO > VDD) ±20 mA
Operating Temperature Range −40°C to +85°C
Storage Temperature Range −65°C to +150°C
Lead Temperature

Soldering (10 sec) 300°C

Vapor Phase (60 sec) 215°C

Infrared (15 sec) 220°C

−0.3 V to V

−0.3 V to +6 V

+ 0.3 V

DD

REF

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.

THERMAL RESISTANCE

Table 9.

Package Type θJA Unit

8-Lead SOIC_N (R-8) 206 °C/W

ESD CAUTION

Rev. 0 | Page 6 of 12

ADM13305

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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

1

SENSE1

SENSE2 2

ADM13305

WDI 3

GND 4

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

8

V

DD

MR7

RESET6

RESET5

06922-003

Table 10. Pin Function Descriptions

Pin No. Mnemonic Description

1 SENSE1 Sense Input Voltage 1.
2 SENSE2 Sense Input Voltage 2.
3 WDI Watchdog Timer Input.
4 GND Ground.
5

RESET

Active-Low Reset Output.

6 RESET Active-High Reset Output.
7

MR

Manual Reset Input.

8 VDD Supply Voltage.

Rev. 0 | Page 7 of 12

ADM13305

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TYPICAL PERFORMANCE CHARACTERISTICS

0.6003

0.6001

(V)

IT

0.5999

0.5997

0.5995

0.5993

0.5991

0.5989

INPUT THRESHOLD VOLTAGE, V

0.5987

0.5985
–40 –20 0 20 40 60 80

FREE AIR TEM PERATURE, TA (°C)

TA = 25°C

V

= 2V

DD

MR = OPEN

06922-004

10

(µs)

9

W

t

8

7

6

5

4

3

2

1

MINIMUM PULSE DURATION AT SENSE,

0

0 1000

100 200 300 400 500 600 700 800 900

SENSE THRESHOLD OVERDRIVE (mV)

VDD = 5.5V

MR = OPEN

06922-007

Figure 4. Sense Threshold Voltage vs. Free Air Temperature at VDD Figure 7. ADM13305-18, ADM13305-25 and ADM13305-33 Minimum Pulse

Duration at SENSE vs. Sense Threshold Overdrive

40

35

30

(µA)

25

DD

20

15

10

5

SUPPLY CURRENT, I

–5

–10

0

–1.0

–0.500.5

1.0

2.0

2.5

3.0

1.5

SUPPLY VOLTAGE, VDD (V)

3.5

SENSEv = 5.5V

MR = OPEN
T

4.0

4.5

= 25°C

A

5.0

5.5

6.0

06922-005

6.5

40

(µs)

39

W

t

38

37

36

35

34

33

32

31

MINIMUM PUL SE DURATION AT SENSE,

30

0 1000

100 200 300 400 500 600 700 800 900

SENSE THRESHOLD OVERDRIVE (mV)

VDD = 5.5V

MR = OPEN

06922-017

Figure 5. Supply Current vs. Supply Voltage Figure 8. ADM13305-4 and ADM13305-5 Minimum Pulse Duration at SENSE

vs. Sense Threshold Overdrive

200

100

0

–100

(µA)

I

–200

–300

–400

–500

INPUT CURRENT, I

–600

–700

–800

–900

–1.0 7.0

–0.500.5

1.0

2.0

3.0

1.5

2.5

INPUT VOLTAGE AT MR, VI (V)

3.5

4.0

Figure 6. Input Current vs. Input Voltage at

4.5

5.0

VDD = 5.5V

T

= 25°C

A

6.0

5.5

6.5

MR

06922-006

Rev. 0 | Page 8 of 12

2.50

(V)

OH

2.00

1.50

1.00

0.50

HIGH LEVEL OUTPUT VOLTAGE, V

VDD = 2V

MR = OPEN

0

0––5–4–3–2–1

HIGH LEVEL OUTPUT CURRENT , IOH (mA)

–40°C
0°C
+25°C
+85°C

Figure 9. High Level Output Voltage vs. High Level Output Current

06922-008

6

ADM13305

www.BDTIC.com/ADI

6.0

5.5

(V)

5.0

OH

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

HIGH LEVEL OUTPUT VOLTAGE, V

0.5

0

VDD = 5.5V

MR = OPEN

0––50–40–30–20–10

HIGH LEVEL OUTPUT CURRENT, I

OH

(mA)

–40°C
0°C
+25°C
+85°C

60

Figure 10. High Level Output Voltage vs. High Level Output Current

0.25

(V)

OL

0.20

0.15

0.10

–40°C
0°C
+25°C
+85°C

1.0

0.9

(V)

OL

0.8

0.7

0.6

0.5

0.4

0.3

0.2

LOW LEVEL OUTPUT VOLTAGE, V

0.1

06922-009

–40°C
0°C
+25°C
+85°C

VDD = 5.5V

0

06

5 10152025303540455055

LOW LEV EL OUTPUT CURRENT, IOL (mA)

MR = OPEN

06922-016

0

Figure 12. Low Level Output Voltage vs. Low Level Output Current

0.05

LOW LEVEL OUTPUT VOLTAGE, V

0

06

24135

LOW LEV EL OUTPUT CURRENT, IOL (mA)

Figure 11. Low Level Output Voltage vs. Low Level Output Current

VDD = 2V

MR = OPEN

06922-010

Rev. 0 | Page 9 of 12

ADM13305

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THEORY OF OPERATION

The ADM13305 is a dual voltage supervisor designed to
monitor two supplies and provide a reset signal to DSP and
microprocessor-based systems.

There are five models available, all of which feature a combina­tion of internally pretrimmed undervoltage threshold options
for monitoring 1.8 V, 2.5 V, 3.3 V, and 5 V supplies. There is also
an adjustable input option with an undervoltage threshold of 0.6 V.

The ADM13305-18, ADM13305-25, and ADM13305-33 have
two internally fixed thresholds, while the ADM13305-4 and
ADM13305-5 offer one internally fixed threshold and one
externally programmable threshold via a resistor string. See
the Ordering Guide for a list of all available options.

INPUT CONFIGURATION

The ADM13305 is powered through VDD. To increase noise
immunity in noisy applications, place a 0.1 μF capacitor
between the V

input and ground.

DD

The SENSEv inputs are resistant to short power supply glitches.
Do not allow an unused SENSEv input to float or to be grounded,
instead connect it to a supply voltage greater than its specified
threshold voltage.

Typically, the threshold voltage at each adjustable SENSEv input
is 0.6 V. To monitor a voltage greater than 0.6 V, connect a resistor
divider network to the device as depicted in Figure 13, where,

+

R2R1

R2

⎞
⎟
⎠

V

= 0.6V

REF

06922-012

⎛

V

MONITERED

=

V6.0

⎜
⎝

MONITORED VOLTAG E

R1

R2

Figure 13. Setting the Adjustable Monitor

RESET OUTPUT

The reset outputs are guaranteed to be in the correct state for

down to 1.1 V. During power-up,

V

DD

the supply voltage becomes greater than 1.1 V.

RESET

is asserted when

SENSEv

V

(NOM)

V

IT–

t

RESET

1

0

t

d

Figure 14. Reset Timing Diagram

t

d

t

Once the supplies monitored at the SENSEv pins rise above

RESET

their associated threshold level, the

signal remains low
for the reset timeout period before deasserting. Subsequently, if
either of the supplies monitored by the SENSEv pins falls below

RESET

its associated threshold the

The ADM13305 features both an active-low, push-pull

output reasserts.

RESET

output and an active-high, push-pull RESET output.

WATCHDOG TIMER

The ADM13305 features a watchdog timer that monitors
microprocessor activity. A timer circuit is cleared with every
low-to-high or high-to-low logic transition on the watchdog
input pin (WDI). If the timer counts through the preset

RESET

watchdog timeout period of 1.6 sec,
shown in . Figure 15

The microprocessor is required to toggle the WDI pin to avoid
being reset. Therefore, failure of the microprocessor to toggle
WDI within the timeout period indicates a code execution error
and the reset pulse generated restarts the microprocessor in a
known state. The watchdog timer can be disabled by leaving
WDI floating.

WDI

1

t

WD

0

RESET

1

is asserted, as

t

06922-013

Rev. 0 | Page 10 of 12

0

t

d

Figure 15. Watchdog Timing Diagram

t

06922-014

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MANUAL RESET (MR)

The ADM13305 features a manual reset input, which when driven
low, asserts the reset output, as shown in Figure 16. When
transitions from low to high, reset remains asserted for the
duration of the reset active timeout period before deasserting.
An external push-button switch can be connected between
and ground to allow the user to generate a reset.

MR

MR

MR

1

RESET

0

1

t

0

t

d

Figure 16. Manual Reset Timing Diagram

t

06922-015

Rev. 0 | Page 11 of 12

ADM13305

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OUTLINE DIMENSIONS

5.00 (0.1968)

4.80 (0.1890)

4.00 (0.1574)

3.80 (0.1497)

0.25 (0.0098)

0.10 (0.0040)

COPLANARITY

0.10

CONTROLL ING DIMENSI ONS ARE IN MILLIMETERS; INCH DI MENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRI ATE FOR USE IN DESIGN.

Figure 17. 8-Lead Standard Small Outline Package [SOIC_N]

ORDERING GUIDE

Nominal Supervised
Voltage

Model

ADM13305-18ARZ
ADM13305-18ARZ-RL7
ADM13305-25ARZ
ADM13305-25ARZ-RL7
ADM13305-33ARZ
ADM13305-33ARZ-RL7
ADM13305-4ARZ
ADM13305-4ARZ-RL7
ADM13305-5ARZ
ADM13305-5ARZ-RL7

1

Z = RoHS Compliant Part.

2

0.6 V adjustable. External resistor divider determines the actual sense voltage.

1

1

3.3 V 1.8 V 2.93 V 1.68 V –40°C to +85°C 8-Lead SOIC_N R-8

1

3.3 V 2.5 V 2.93 V 2.25 V –40°C to +85°C 8-Lead SOIC_N R-8

1

3.3 V 2.5 V 2.93 V 2.25 V –40°C to +85°C 8-Lead SOIC_N R-8

1

5 V 3.3 V 4.55 V 2.93 V –40°C to +85°C 8-Lead SOIC_N R-8

1

5 V 3.3 V 4.55 V 2.93 V –40°C to +85°C 8-Lead SOIC_N R-8

1

3.3 V Adjustable

1

3.3 V Adjustable

1

2.5 V Adjustable

1

2.5 V Adjustable

SENSE1 SENSE2 SENSE1 SENSE2

3.3 V 1.8 V 2.93 V 1.68 V –40°C to +85°C 8-Lead SOIC_N R-8

85

1

4

1.27 (0.0500)
BSC

0.51 (0.0201)

SEATING

PLANE

COMPLIANT TO JEDEC STANDARDS MS-012-A A

0.31 (0.0122)

Dimensions shown in millimeters and (inches)

Threshold Voltage
(Typical)

2

2.93 V 0.6 V –40°C to +85°C 8-Lead SOIC_N R-8

2

2.93 V 0.6 V –40°C to +85°C 8-Lead SOIC_N R-8

2

2.25 V 0.6 V –40°C to +85°C 8-Lead SOIC_N R-8

2

2.25 V 0.6 V –40°C to +85°C 8-Lead SOIC_N R-8

6.20 (0.2441)

5.80 (0.2284)

1.75 (0.0688)

1.35 (0.0532)

Narrow Body

(R-8)

8°
0°

0.25 (0.0098)

0.17 (0.0067)

0.50 (0.0196)

0.25 (0.0099)

1.27 (0.0500)

0.40 (0.0157)

45°

Temperature
Range

-A

012407

Package
Description

Package
Option

©2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06922-0-8/07(0)

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