Microprocessor Supervisory Circuits
RESET
RESET
INPUT
GND GND
V
CC
V
CC
MICROPROCESSOR
SYSTEM
ADM803 / ADM809
V
CC
*R
PULL-UP
*ADM803 ONLY
in 3-Lead SC70 and SOT-23
ADM803/ADM809/ADM810
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
CC
140 ms Min Power-On Reset
Open-Drain RESET Output (ADM803)
Push-Pull RESET Output (ADM809)
Push-Pull RESET Output (ADM810)
SC70 and SOT-23 Packages
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
GENERAL DESCRIPTION
The ADM803/ADM809/ADM810 supervisory circuits monitor
the power supply voltage in microprocessor systems. They provide 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
as low as 1 V. The ADM803 and ADM809
CC
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
CC
.
The ADM803/ADM809/ADM810 consume only 17 µA,
making them 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.
FUNCTIONAL BLOCK DIAGRAM
ADM803
V
CC
V
REF
ADM809 / ADM810
V
CC
V
REF
RESET
GENERATOR
240ms
GND
RESET
GENERATOR
240ms
GND
Figure 1. Typical Operating Circuit
RESET
RESET
(RESET)
REV. E
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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
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © 2005 Analog Devices, Inc. All rights reserved.
ADM803/ADM809/ADM810–SPECIFICATIONS
Typ = 5 V for L/M/J models, 3.3 V for T/S models, 3 V for R models, 2.5 V for Z models, unless otherwise noted.)
V
CC
(VCC = full operating range, TA = T
MIN
to T
Parameter Min Typ Max Unit Test Conditions/Comments
VCC OPERATING VOLTAGE RANGE 1.0 5.5 V TA = 0°C to 70°C
1.2 5.5 V T
Supply Current 24 35 µAV
17 30 µAV
60 µAV
60 µAV
= –40°C to +125°C
A
< 5.5 V, ADM8_L/M/J,
CC
T
= –40°C to +85°C
A
< 3.6 V, ADM8_R/S/T/Z,
CC
T
= –40°C to +85°C
A
< 5.5 V, ADM8_L/M/J,
CC
T
= 85°C to 125°C
A
< 3.6 V, ADM8_R/S/T/Z,
CC
TA = 85°C to 125°C
RESET THRESHOLD
Reset Voltage Threshold
ADM8_L 4.56 4.63 4.70 V T
ADM8_L 4.50 4.75 V T
ADM8_L 4.44 4.82 V T
ADM8_M 4.31 4.38 4.45 V T
ADM8_M 4.25 4.50 V T
ADM8_M 4.20 4.56 V T
ADM8_J* 3.93 4.00 4.06 V T
ADM8_J* 3.89 4.10 V T
ADM8_J* 3.80 4.20 V T
ADM8_T 3.04 3.08 3.11 V T
ADM8_T 3.00 3.15 V T
ADM8_T 2.95 3.21 V T
ADM8_S 2.89 2.93 2.96 V T
ADM8_S 2.85 3.00 V T
ADM8_S 2.81 3.05 V T
ADM8_R 2.59 2.63 2.66 V T
ADM8_R 2.55 2.70 V T
ADM8_R 2.52 2.74 V T
ADM8_Z 2.28 2.32 2.35 V T
ADM8_Z 2.25 2.38 V T
= 25°C
A
= –40°C to +85°C
A
= –40°C to +125°C
A
= 25°C
A
= –40°C to +85°C
A
= –40°C to +125°C
A
= 25°C
A
= –40°C to +85°C
A
= –40°C to +125°C
A
= 25°C
A
= –40°C to +85°C
A
= –40°C to +125°C
A
= 25°C
A
= –40°C to +85°C
A
= –40°C to +125°C
A
= 25°C
A
= –40°C to +85°C
A
= –40°C to +125°C
A
= 25°C
A
= –40°C to +85°C
A
ADM8_Z 2.22 2.42 V TA = –40°C to +125°C
RESET THRESHOLD TEMPERATURE
COEFFICIENT 30 ppm/°C
VCC to Reset Delay 20 µsV
= VTH to (VTH – 100 mV)
CC
RESET ACTIVE TIMEOUT PERIOD 140 240 460 ms TA = –40°C to +85°C
100 840 ms TA = 85°C to 125°C
RESET OUTPUT VOLTAGE LOW 0.3 V VCC = VTH min, I
= 1.2 mA,
SINK
(ADM803/ADM809) ADM803R/S/T/Z, ADM809R/S/T/Z
0.4 V V
= VTH min, I
CC
= 3.2 mA,
SINK
ADM803L/M/J, ADM809L/M/J
RESET OUTPUT VOLTAGE HIGH 0.8 V
CC
0.3 V VCC >1.0 V, I
VV
> VTH max, I
CC
SINK
= 50 µA
SOURCE
= 500 µA,
(ADM809) ADM809R/S/T/Z
V
– 1.5 V VCC > VTH max, I
CC
SOURCE
= 800 µA,
ADM809L/M/J
RESET OUTPUT VOLTAGE LOW
(ADM810) 0.3 V V
= VTH min, I
CC
= 1.2 mA,
SINK
ADM810R/S/T/Z
0.4 V V
= VTH min, I
CC
= 3.2 mA,
SINK
ADM810L/M/J
RESET OUTPUT VOLTAGE HIGH
(ADM810) 0.8 V
CC
V 1.8 V < VCC < VTH min,
I
= 150 µA
SOURCE
RESET OPEN-DRAIN OUTPUT
Leakage Current (ADM803) 1 µAV
*ADM809/ADM810 only.
> VTH, reset de-asserted
CC
MAX
,
–2–
REV. E
(TA = 25°C, unless otherwise noted.)
V
CC
RESET
t1 t1
V
REF
V
REF
V
REF
V
REF
t1 = RESET TIME = 240ms TYP
V
REF
= RESET VOLTAGE THRESHOLD
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
RESET, RESET . . . . . . . . . . . . . . . . . . –0.3 V to V
+ 0.5 V
CC
Input Current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
V
CC
Output Current
RESET, RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Rate of Rise, V
Thermal Impedance, SC70 . . . . . . . . . . . . . . . . . 146°C/W
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 V/µs
CC
JA Thermal Impedance, SOT-23 . . . . . . . . . . . . . . . 270°C/W
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods of time may affect device reliability.
Table I. Reset Threshold Options
RESET Model Threshold (V)
ADM8_L 4.63
ADM8_M 4.38
ADM8_J* 4.00
ADM8_T 3.08
ADM8_S 2.93
ADM8_R 2.63
ADM8_Z 2.32
*ADM809/ADM810 only.
ADM803/ADM809/ADM810
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS*
PIN CONFIGURATION
ADM803/
1
GND
ADM809/
ADM810
TOP VIEW
(Not to Scale)
RESET, RESET
2
PIN FUNCTION DESCRIPTIONS
Pin No. Mnemonic Function
1GND 0 V. Ground reference for all
signals.
2 RESET (ADM803/ Active Low Logic Output.
ADM809) RESET remains low while V
is below the reset threshold and
remains low for 240 ms (typ)
after V
threshold.
2 RESET (ADM810) Active High Logic Output.
RESET remains high while V
is below the reset threshold and
remains high for 240 ms (typ)
after V
threshold.
3V
CC
Supply Voltage Being
Monitored.
3
V
CC
rises above the reset
CC
rises above the reset
CC
CC
CC
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADM803/ADM809/ADM810 feature proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions
are recommended to avoid performance degradation or loss of functionality.
REV. E
Figure 2. Power Fail Reset Timing
–3–
ADM803/ADM809/ADM810
ORDERING GUIDE (ADM803 and ADM809)
Model Reset Threshold (V) Temperature Range Branding Quantity Package Type
ADM803LAKS-REEL 4.63 –40°C to +125°CM02 10k 3-Lead SC70
ADM803LAKS-REEL7 4.63 –40°C to +125°CM02 3k 3-Lead SC70
ADM803MAKS-REEL 4.38 –40°C to +125°CM03 10k 3-Lead SC70
ADM803MAKS-REEL7 4.38 –40°C to +125°CM03 3k 3-Lead SC70
ADM803RAKS-REEL 2.63 –40°C to +125°CM07 10k 3-Lead SC70
ADM803RAKS-REEL7 2.63 –40°C to +125°CM07 3k 3-Lead SC70
ADM803SAKS-REEL 2.93 –40°C to +125°CM06 10k 3-Lead SC70
ADM803SAKS-REEL7 2.93 –40°C to +125°CM06 3k 3-Lead SC70
ADM803TAKS-REEL 3.08 –40°C to +125°CM05 10k 3-Lead SC70
ADM803TAKS-REEL7 3.08 –40°C to +125°CM05 3k 3-Lead SC70
ADM803TAKSZ-REEL* 3.08 –40°C to +125°CM4M 10k 3-Lead SC70
ADM803TAKSZ-REEL7* 3.08 –40°C to +125°CM4M 3k 3-Lead SC70
ADM803ZAKS-REEL 2.32 –40°C to +125°CM08 10k 3-Lead SC70
ADM803ZAKS-REEL7 2.32 –40°C to +125°CM08 3 k 3-Lead SC70
ADM809JAKS-REEL 4.00 –40°C to +125°C M9C 10k 3-Lead SC70
ADM809JAKS-REEL7 4.00 –40°C to +125°C M9C 3k 3-Lead SC70
ADM809JART-REEL 4.00 –40°C to +125°C9JXX 10k 3-Lead SOT-23
ADM809JART-REEL7 4.00 –40°C to +125°C9JXX 3k 3-Lead SOT-23
ADM809LAKS-REEL 4.63 –40°C to +125°C M9A 10k 3-Lead SC70
ADM809LAKS-REEL7 4.63 –40°C to +125°C M9A 3k 3-Lead SC70
ADM809LART-REEL 4.63 –40°C to +125°C 9LXX 10k 3-Lead SOT-23
ADM809LART-REEL7 4.63 –40°C to +125°C 9LXX 3k 3-Lead SOT-23
ADM809LARTZ-REEL* 4.63 –40°C to +125°C 9LXX# 10k 3-Lead SOT-23
ADM809LARTZ-REEL7* 4.63 –40°C to +125°C 9LXX# 3k 3-Lead SOT-23
ADM809MAKS-REEL 4.38 –40°C to +125°CM9B 10k 3-Lead SC70
ADM809MAKS-REEL7 4.38 –40°C to +125°CM9B 3k 3-Lead SC70
ADM809MART-REEL 4.38 –40°C to +125°C 9MXX 10k 3-Lead SOT-23
ADM809MART-REEL7 4.38 –40°C to +125°C 9MXX 3k 3-Lead SOT-23
ADM809MARTZ-REEL* 4.38 –40°C to +125°C 9MXX# 10k 3-Lead SOT-23
ADM809MARTZ-REEL7* 4.38 –40°C to +125°C 9MXX# 3k 3-Lead SOT-23
ADM809RAKS-REEL 2.63 –40°C to +125°C M9F 10k 3-Lead SC70
ADM809RAKS-REEL7 2.63 –40°C to +125°C M9F 3k 3-Lead SC70
ADM809RAKSZ-REEL* 2.63 –40°C to +125°C M9F 10k 3-Lead SC70
ADM809RAKSZ-REEL7* 2.63 –40°C to +125°C M9F 3k 3-Lead SC70
ADM809RART-REEL 2.63 –40°C to +125°C 9RXX 10k 3-Lead SOT-23
ADM809RART-REEL7 2.63 –40°C to +125°C 9RXX 3k 3-Lead SOT-23
ADM809RARTZ-REEL* 2.63 –40°C to +125°C M4D 10k 3-Lead SOT-23
ADM809RARTZ-REEL7* 2.63 –40°C to +125°C M4D 3k 3-Lead SOT-23
ADM809SAKS-REEL 2.93 –40°C to +125°C M9E 10k 3-Lead SC70
ADM809SAKS-REEL7 2.93 –40°C to +125°C M9E 3k 3-Lead SC70
ADM809SART-REEL 2.93 –40°C to +125°C 9SXX 10k 3-Lead SOT-23
ADM809SART-REEL7 2.93 –40°C to +125°C 9SXX 3k 3-Lead SOT-23
ADM809SARTZ-REEL* 2.93 –40°C to +125°C 9SXX# 10k 3-Lead SOT-23
ADM809SARTZ-REEL7* 2.93 –40°C to +125°C 9SXX# 3k 3-Lead SOT-23
ADM809TAKS-REEL 3.08 –40°C to +125°C M9D 10k 3-Lead SC70
ADM809TAKS-REEL7 3.08 –40°C to +125°C M9D 3k 3-Lead SC70
ADM809TAKSZ-REEL* 3.08 –40°C to +125°C M9D# 10k 3-Lead SC70
ADM809TAKSZ-REEL7* 3.08 –40°C to +125°C M9D# 3k 3-Lead SC70
ADM809TART-REEL 3.08 –40°C to +125°C 9TXX 10k 3-Lead SOT-23
ADM809TART-REEL7 3.08 –40°C to +125°C 9TXX 3k 3-Lead SOT-23
ADM809TARTZ-REEL* 3.08 –40°C to +125°CM4K 10k 3-Lead SOT-23
ADM809TARTZ-REEL7* 3.08 –40°C to +125°CM4K 3k 3-Lead SOT-23
ADM809ZAKS-REEL 2.32 –40°C to +125°C M9G 10k 3-Lead SC70
ADM809ZAKS-REEL7 2.32 –40°C to +125°C M9G 3k 3-Lead SC70
ADM809ZART-REEL 2.32 –40°C to +125°C 9ZXX 10k 3-Lead SOT-23
ADM809ZART-REEL7 2.32 –40°C to +125°C 9ZXX 3k 3-Lead SOT-23
ADM809ZARTZ-REEL* 2.32 –40°C to +125°C M4P 10k 3-Lead SOT-23
ADM809ZARTZ-REEL7* 2.32 –40°C to +125°C M4P 3k 3-Lead SOT-23
REV. E–4–
ADM803/ADM809/ADM810
ORDERING GUIDE (ADM810)
Model Reset Threshold (V) Temperature Range Branding Quantity Package Type
ADM810JAKS-REEL 4.00 –40°C to +125°C MAC 10k 3-Lead SC70
ADM810JAKS-REEL7 4.00 –40°C to +125°C MAC 3k 3-Lead SC70
ADM810JART-REEL 4.00 –40°C to +125°C AJXX 10k 3-Lead SOT-23
ADM810JART-REEL7 4.00 –40°C to +125°C AJXX 3k 3-Lead SOT-23
ADM810LAKS-REEL 4.63 –40°C to +125°C MAA 10k 3-Lead SC70
ADM810LAKS-REEL7 4.63 –40°C to +125°C MAA 3k 3-Lead SC70
ADM810LART-REEL 4.63 –40°C to +125°C ALXX 10k 3-Lead SOT-23
ADM810LART-REEL7 4.63 –40°C to +125°C ALXX 3k 3-Lead SOT-23
ADM810LARTZ-REEL* 4.63 –40°C to +125°C ALXX# 10k 3-Lead SOT-23
ADM810LARTZ-REEL7* 4.63 –40°C to +125°C ALXX# 3k 3-Lead SOT-23
ADM810MAKS-REEL 4.38 –40°C to +125°C MAB 10k 3-Lead SC70
ADM810MAKS-REEL7 4.38 –40°C to +125°C MAB 3k 3-Lead SC70
ADM810MART-REEL 4.38 –40°C to +125°C AMXX 10k 3-Lead SOT-23
ADM810MART-REEL7 4.38 –40°C to +125°C AMXX 3k 3-Lead SOT-23
ADM810RAKS-REEL 2.63 –40°C to +125°CMAF 10k 3-Lead SC70
ADM810RAKS-REEL7 2.63 –40°C to +125°CMAF 3k 3-Lead SC70
ADM810RART-REEL 2.63 –40°C to +125°C ARXX 10k 3-Lead SOT-23
ADM810RART-REEL7 2.63 –40°C to +125°C ARXX 3k 3-Lead SOT-23
ADM810RARTZ-REEL* 2.63 –40°C to +125°C ARXX# 10k 3-Lead SOT-23
ADM810RARTZ-REEL7* 2.63 –40°C to +125°C ARXX# 3k 3-Lead SOT-23
ADM810SAKS-REEL 2.93 –40°C to +125°C MAE 10k 3-Lead SC70
ADM810SAKS-REEL7 2.93 –40°C to +125°C MAE 3k 3-Lead SC70
ADM810SART-REEL 2.93 –40°C to +125°C ASXX 10k 3-Lead SOT-23
ADM810SART-REEL7 2.93 –40°C to +125°C ASXX 3k 3-Lead SOT-23
ADM810TAKS-REEL 3.08 –40°C to +125°C MAD 10k 3-Lead SC70
ADM810TAKS-REEL7 3.08 –40°C to +125°C MAD 3k 3-Lead SC70
ADM810TART-REEL 3.08 –40°C to +125°C ATXX 10k 3-Lead SOT-23
ADM810TART-REEL7 3.08 –40°C to +125°C ATXX 3k 3-Lead SOT-23
ADM810TARTZ-REEL* 3.08 –40°C to +125°C ATXX# 3k 3-Lead SOT-23
ADM810TARTZ-REEL7* 3.08 –40°C to +125°C ATXX# 3k 3-Lead SOT-23
ADM810ZAKS-REEL 2.32 –40°C to +125°C MAG 10k 3-Lead SC70
ADM810ZAKS-REEL7 2.32 –40°C to +125°C MAG 3k 3-Lead SC70
ADM810ZART-REEL 2.32 –40°C to +125°C AZXX 10k 3-Lead SOT-23
ADM810ZART-REEL7 2.32 –40°C to +125°C AZXX 3k 3-Lead SOT-23
ADM810ZARTZ-REEL* 2.32 –40°C to +125°C AZXX# 10k 3-Lead SOT-23
ADM810ZARTZ-REEL7* 2.32 –40°C to +125°C AZXX# 3k 3-Lead SOT-23
*Z = Pb-free part.
REV. E
–5–
ADM803/ADM809/ADM810–Typical Performance Characteristics
O
O
S
(
)
30
25
20
15
10
SUPPLY CURRENT (A)
5
0
–40 –20
020406080
TEMPERATURE (ⴗC)
VCC = 5V
VCC = 3V
85
TPC 1. Supply Current vs. Temperature (No Load)
200
180
160
140
120
100
80
60
POWER-DOWN RESET (s)
40
20
0
–40 –20
02040608085
TEMPERATURE (ⴗC)
VOD = VTH – V
VOD = 10mV
VOD = 20mV
V
= 100mV
OD
VOD = 200mV
CC
TPC 2. Power-Down RESET Delay vs. Temperature
ADM8_L/M/J
240.0
239.5
239.0
s
238.5
ET
238.0
237.5
WN RE
237.0
WER-D
236.5
P
236.0
235.5
235.0
–40 –20
020406080 85
TEMPERATURE (ⴗC)
TPC 4. Power-Down RESET Delay vs. Temperature
ADM8_R
1.0020
1.0015
1.0010
THRESHOLD
1.0005
RESET
1.0000
0.9995
NORMALIZED
0.9990
–40 –20
02040608085
TEMPERATURE (ⴗC)
TPC 5. Normalized RESET Voltage Threshold vs.
Temperature
180
160
140
120
100
80
60
POWER-DOWN RESET (s)
40
20
0
–40 –20
TPC 3. Power-Down RESET Delay vs. Temperature
02040608085
TEMPERATURE (ⴗC)
VOD = VTH – V
VOD = 10mV
VOD = 20mV
= 100mV
V
OD
VOD = 200mV
CC
SUPPLY VOLTAGE
5V
P-P
T
ADM809R
RESET OUTPUT
VOLTAGE
CH1
2.00V
1
1
ADM809T
CH1
T
2.00V
CH2
2.00V M 200ms
2
TPC 6. RESET Output Voltage vs. Supply Voltage
ADM8_T/S/R/Z
REV. E–6–
ADM803/ADM809/ADM810
400
350
300
250
200
150
100
MAXIMUM TRANSIENT DURATION (s)
50
0
110 1000100
ADM8_L/M/J
ADM8_R/S/T/Z
RESET COMPARATOR OVERDRIVE, V
– V
(mV)
TH
CC
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 designed to integrate
with as many devices as possible and, therefore, has a standard
output dependent on V
. This enables the parts to be used in
CC
both 3 V and 5 V, or any nominal voltage within the minimum and
maximum specifications for V
. This design simplifies interfacing
CC
this device to other devices.
Ensuring a Valid Reset Output Down to VCC = 0 V
When VCC falls below 0.8 V, the ADM803/ADM809 RESET
no longer sinks current. A high impedance CMOS logic input
connected to RESET may, therefore, drift to undetermined
logic levels. To eliminate this problem, a 100 kΩ resistor should
be connected from RESET to ground.
V
CC
Benefits of an Accurate Reset Threshold
In other microprocessor supervisory circuits, tolerances in supply
voltages lead to an overall increase in reset tolerance levels due
to the deterioration of the microprocessor reset circuit’s power
supply. The possibility of a malfunction during a power failure is
greatly reduced because the ADM803/ADM809/ADM810 series
can operate effectively even when there are large degradations
of the supply voltages. Another advantage of the ADM803/
ADM809/ADM810 series is its very accurate internal voltage
reference circuit. These benefits combine to produce an exceptionally reliable voltage monitor circuit.
Interfacing to Microprocessors with Multiple Interrupts
In a number of cases, it is necessary to interface many interrupts
from different devices (for example, thermal, altitude, and
velocity sensors). The ADM803/ADM809/ADM810 can easily
be integrated into existing interrupt-handling circuits, as shown
in Figure 4, or can be used as a standalone device.
V
CC
V
CC
ADM809
RESET
GND
PRIORITY ENCODER
74LS147
4-LINE BCD TO
MICROPROCESSOR
OTHER SENSING
DEVICES
V
CC
ADM809
RESET
GND
Figure 3. Ensuring a Valid Reset Output
Down to VCC = 0 V
Figure 4. Interfacing to Microprocessors with
Multiple Interrupts
REV. E
–7–
ADM803/ADM809/ADM810
1.40
1.30
1.20
3-Lead Thin Shrink Small Outline Transistor Package [SC70]
OUTLINE DIMENSIONS
3-Lead Small Outline Transistor Package [SOT-23]
(RT-3)
Dimensions shown in millimeters
3.04
2.90
2.80
PIN 1
0.10
0.01
3
1
1.90 BSC
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS TO-236AB
2
0.95 BSC
2.64
2.10
0.50
0.30
1.12
0.89
0.60
0.50
0.40
0.20
0.08
(KS-3)
Dimensions shown in millimeters
1.35
1.25
1.15
PIN 1
1.00
0.80
0.10 MAX
0.10 COPLANARITY
2.20
2.00
1.80
2
0.65 BSC
2.40
2.10
1.80
1.10
0.80
SEATING
PLANE
0.26
0.10
0.40
0.10
3
1
0.40
0.25
ALL DIMENSIONS COMPLIANT WITH EIAJ SC70
0.30
0.20
0.10
REV. E–8–
ADM803/ADM809/ADM810
Revision History
Location Page
2/05—Data Sheet changed from REV. D to REV. E.
Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2/05—Data Sheet changed from REV. C to REV. D.
Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5/03—Data Sheet changed from REV. B to REV. C.
Added ADM803 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Universal
Changes to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Changes to GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Changes to Figure 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to Table I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Updated ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1/03—Data Sheet changed from REV. A to REV. B.
Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to Table I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Changes to TPCs 1–3, and TPC 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
10/02—Data Sheet changed from REV. 0 to REV. A.
Addition of SC70 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Universal
Change to GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Change to Table I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Change to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Change to TPC 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
REV. E
–9–
–10–
–11–
C03736–0–2/05(E)
–12–
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