REV. E
a
ADM485
5 V Low Power
EIA RS-485 Transceiver
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
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Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.
FUNCTIONAL BLOCK DIAGRAM
ADM485
R
D
RO
RE
DI
V
CC
B
A
GND
DE
FEATURES
Meets EIA RS-485 Standard
5 Mbps Data Rate
Single 5 V Supply
–7 V to +12 V Bus Common-Mode Range
High Speed, Low Power BiCMOS
Thermal Shutdown Protection
Short-Circuit Protection
Driver Propagation Delay: 10 ns
Receiver Propagation Delay: 15 ns
High Z Outputs with Power Off
Superior Upgrade for LTC485
APPLICATIONS
Low Power RS-485 Systems
DTE-DCE Interface
Packet Switching
Local Area Networks
Data Concentration
Data Multiplexers
Integrated Services Digital Network (ISDN)
GENERAL DESCRIPTION
The ADM485 is a differential line transceiver suitable for high
speed bidirectional data communication on multipoint bus trans-
mission lines. It is designed for balanced data transmission and
complies with EIA Standards RS-485 and RS-422. The part
contains a differential line driver and a differential line receiver.
Both the driver and the receiver may be enabled independently.
When disabled, the outputs are three-stated.
The ADM485 operates from a single 5 V power supply. Excessive
power dissipation caused by bus contention or by output shorting
is prevented by a thermal shutdown circuit. This feature forces
the driver output into a high impedance state if during fault condi-
tions a significant temperature increase is detected in the internal
driver circuitry.
Up to 32 transceivers may be connected simultaneously on a bus,
but only one driver should be enabled at any time. It is important,
therefore, that the remaining disabled drivers do not load the bus.
To ensure this, the ADM485 driver features high output imped-
ance when disabled and when powered down.
This minimizes the loading effect when the transceiver is not being
used. The high impedance driver output is maintained over the
entire common-mode voltage range from –7 V to +12 V.
The receiver contains a fail-safe feature that results in a logic
high output state if the inputs are unconnected (floating).
The ADM485 is fabricated on BiCMOS, an advanced mixed
technology process combining low power CMOS with fast switching
bipolar technology. All inputs and outputs contain protection
against ESD; all driver outputs feature high source and sink current
capability. An epitaxial layer is used to guard against latch-up.
The ADM485 features extremely fast switching speeds. Minimal
driver propagation delays permit transmission at data rates up to
5 Mbps while low skew minimizes EMI interference.
The part is fully specified over the commercial and industrial
temperature range and is available in PDIP, SOIC, and small
footprint MSOP packages.
REV. E
–2–
ADM485–SPECIFICATIONS
(VCC = 5 V ⴞ 5%. All specifications TMIN to TMAX, unless otherwise noted.)
Parameter Min Typ Max Unit Test Conditions/Comments
DRIVER
Differential Output Voltage, V
OD
5.0 V R = ∞, Test Circuit 1
2.0 5.0 V V
CC
= 5 V, R = 50 Ω (RS-422), Test Circuit 1
1.5 5.0 V R = 27 Ω (RS-485), Test Circuit 1
V
OD3
1.5 5.0 V V
TST
= –7 V to +12 V, Test Circuit 2
∆|V
OD
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω, Test Circuit 1
Common-Mode Output Voltage, V
OC
3VR = 27 Ω or 50 Ω, Test Circuit 1
∆|V
OD
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω
Output Short-Circuit Current (V
OUT
= High) 35 250 mA –7 V
≤
V
O
≤
+12 V
Output Short-Circuit Current (V
OUT
= Low) 35 250 mA –7 V
≤
V
O
≤
+12 V
CMOS Input Logic Threshold Low, V
INL
0.8 V
CMOS Input Logic Threshold High, V
INH
2.0 V
Logic Input Current (DE, DI) ±1.0 µA
RECEIVER
Differential Input Threshold Voltage, V
TH
–0.2 +0.2 V –7 V
≤
V
CM
≤
+12 V
Input Voltage Hysteresis, ∆V
TH
70 mV V
CM
= 0 V
Input Resistance 12 kΩ–7 V
≤
V
CM
≤
+12 V
Input Current (A, B) 1 mA V
IN
= 12 V
–0.8 mA V
IN
= –7 V
CMOS Input Logic Threshold Low, V
INL
0.8 V
CMOS Input Logic Threshold High, V
INH
2.0 V
Logic Enable Input Current (RE)±1µA
CMOS Output Voltage Low, V
OL
0.4 V I
OUT
= +4.0 mA
CMOS Output Voltage High, V
OH
4.0 V I
OUT
= –4.0 mA
Short-Circuit Output Current 7 85 mA V
OUT
= GND or V
CC
Three-State Output Leakage Current ±1.0 µA0.4 V
≤
V
OUT
≤
2.4 V
POWER SUPPLY CURRENT
I
CC
(Outputs Enabled) 1.0 2.2 mA Digital Inputs = GND or V
CC
I
CC
(Outputs Disabled) 0.6 1 mA Digital Inputs = GND or V
CC
Specifications subject to change without notice.
TIMING SPECIFICATIONS
Parameter Min Typ Max Unit Test Conditions/Comments
DRIVER
Propagation Delay Input to Output t
PLH
, t
PHL
21015nsR
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, Test Circuit 3
Driver O/P to O/P, t
SKEW
15nsR
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, Test Circuit 3
Driver Rise/Fall Time, t
R
, t
F
815nsR
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, Test Circuit 3
Driver Enable to Output Valid 10 25 ns R
L
= 110 Ω, C
L
= 50 pF, Test Circuit 4
Driver Disable Timing 10 25 ns R
L
= 110 Ω, C
L
= 50 pF, Test Circuit 4
Matched Enable Switching 0 2 ns R
L
= 110 Ω, C
L
= 50 pF, Test Circuit 4*
|t
AZH
– t
BZL
|, |t
BZH
– t
AZL
|
Matched Disable Switching 0 2 ns R
L
= 110 Ω, C
L
= 50 pF, Test Circuit 4*
|t
AHZ
– t
BLZ
|, |t
BHZ
– t
ALZ
|
RECEIVER
Propagation Delay Input to Output, t
PLH
, t
PHL
81530nsC
L
= 15 pF, Test Circuit 5
Skew |t
PLH
– t
PHL
|5nsC
L
= 15 pF, Test Circuit 5
Receiver Enable, t
EN1
520nsC
L
= 15 pF, R
L
= 1 kΩ, Test Circuit 6
Receiver Disable, t
EN2
520nsC
L
= 15 pF, R
L
= 1 kΩ, Test Circuit 6
Tx Pulse Width Distortion 1 ns
Rx Pulse Width Distortion 1 ns
*Guaranteed by characterization.
Specifications subject to change without notice.
(VCC = 5 V ⴞ 5%. All specifications TMIN to TMAX, unless otherwise noted.)
REV. E
ADM485
–3–
ABSOLUTE MAXIMUM RATINGS*
(T
A
= 25°C, unless otherwise noted.)
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Inputs
Driver Input (DI) . . . . . . . . . . . . . . . . –0.3 V to V
CC
+ 0.3 V
Control Inputs (DE, RE). . . . . . . . . . –0.3 V to V
CC
+ 0.3 V
Receiver Inputs (A, B) . . . . . . . . . . . . . . . . . . –9 V to +14 V
Outputs
Driver Outputs (A, B) . . . . . . . . . . . . . . . . . . –9 V to +14 V
Receiver Output . . . . . . . . . . . . . . . . . –0.5 V to V
CC
+ 0.5 V
Power Dissipation 8-Lead MSOP . . . . . . . . . . . . . . . . 900 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 206°C/W
Power Dissipation 8-Lead PDIP . . . . . . . . . . . . . . . . . 500 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 130°C/W
Power Dissipation 8-Lead SOIC . . . . . . . . . . . . . . . . . 450 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 170°C/W
Operating Temperature Range
Commercial (J Version) . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Industrial (A Version) . . . . . . . . . . . . . . . . . –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
*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.
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
ADM485 features 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.
Table II. Receiving
Inputs Output
RE A–B RO
0
≥
+0.2 V 1
0
≤
–0.2 V 0
0Inputs Open 1
1X Z
Table I. Transmitting
Inputs Outputs
DE DI B A
1101
1010
0XZZ
ORDERING GUIDE
Model Temperature Range Package Option Branding
ADM485AN –40°C to +85°CN-8
ADM485AR –40°C to +85°CR-8
ADM485AR-REEL –40°C to +85°CR-8
ADM485ARZ*–40°C to +85°CR-8
ADM485ARZ-REEL*–40°C to +85°CR-8
ADM485ARM –40°C to +85°CRM-8 M41
ADM485ARM-REEL –40°C to +85°CRM-8 M41
ADM485ARM-REEL7 –40°C to +85°CRM-8 M41
ADM485JN 0°C to 70°CN-8
ADM485JR 0°C to 70°CR-8
ADM485JR-REEL 0°C to 70°CR-8
ADM485JR-REEL7 0°C to 70°CR-8
ADM485JRZ*0°C to 70°CR-8
ADM485JRZ-REEL*0°C to 70°CR-8
ADM485JRZ-REEL7*0°C to 70°CR-8
*Z = Lead Free.
REV. E
–4–
ADM485
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
RO
RE
DE
V
CC
B
A
GNDDI
ADM485
PIN FUNCTION DESCRIPTIONS
Pin No. Mnemonic Function
1ROReceiver Output. When enabled, if A > B by 200 mV, then RO = High. If A < B by 200 mV, then
RO = Low.
2RE Receiver Output Enable. A low level enables the receiver output, RO. A high level places it in a high
impedance state.
3DEDriver Output Enable. A high level enables the driver differential outputs, A and B. A low level places it in a
high impedance state.
4DIDriver Input. When the driver is enabled, a Logic Low on DI forces A low and B high while a Logic High
on DI forces A high and B low.
5GND Ground Connection, 0 V.
6A Noninverting Receiver Input A/Driver Output A.
7B
Inverting Receiver Input B/Driver Output B.
8V
CC
Power Supply, 5 V ± 5%.
REV. E
ADM485
–5–
Test Circuits
VOD
R
RVOC
Test Circuit 1. Driver Voltage Measurement
VOD3 60⍀
375⍀
375⍀
VTST
Test Circuit 2. Driver Voltage Measurement
RLDIFF
A
B
CL1
CL2
Test Circuit 3. Driver Propagation Delay
DE
0V OR 3V
DE IN
A
B
S1
CLVOUT
RL
S2
VCC
Test Circuit 4. Driver Enable/Disable
RE
A
B
CL
VOUT
Test Circuit 5. Receiver Propagation Delay
RE
+1.5V
RE IN
S1
CLVOUT
RL
S2
VCC
–1.5V
Test Circuit 6. Receiver Enable/Disable
Switching Characteristics
3V
0V
B
A
0V
–VO
VO90% POINT
10% POINT
tR
tSKEW = 円tPLH – tPHL円
1/2VO
tPLH
1.5V 1.5V
tPHL
90% POINT
10% POINT
tF
VO
Figure 1. Driver Propagation Delay, Rise/Fall Timing
DE
A, B
A, B
1.5V
2.3V
2.3V
t
ZH
t
ZL
1.5V
3V
0V
V
OL
V
OH
0V
V
OL
+ 0.5V
V
OH
– 0.5V
t
HZ
t
LZ
Figure 2. Driver Enable/Disable Timing
A, B
RO
0V
tPLH
1.5V
0V
tPHL
1.5V
V
OH
V
OL
tSKEW
= 円
tPLH
–
tPHL
円
Figure 3. Receiver Propagation Delay
RE
R
R
1.5V
1.5V
1.5V
tZH
tZL
1.5V
3V
0V
VOL
VOH
VOL + 0.5V
VOH – 0.5V
tHZ
tLZ
O/P LOW
O/P HIGH
0V
Figure 4. Receiver Enable/Disable Timing
REV. E–6–
ADM485–Typical Performance Characteristics
OUTPUT VOLTAGE – V
OUTPUT CURRENT – mA
50
0
45
30
25
20
15
10
5
00.50 1.00 1.75
40
35
0.25 0.75 1.25 1.50 2.00
TPC 1. Output Current vs. Receiver Output Low Voltage
OUTPUT VOLTAGE – V
OUTPUT CURRENT – mA
0
3.50
–2
–4
–6
–8
–10
–12
–14
–16
–18
4.00 4.75 5.004.253.75 4.50
TPC 2. Output Current vs. Receiver Output High Voltage
TEMPERATURE – ⴗC
OUTPUT VOLTAGE – V
4.55
–50 –25 1250255075100
I = 8mA
4.50
4.45
4.40
4.35
4.30
4.25
4.20
4.15
TPC 3. Receiver Output High Voltage vs. Temperature
TEMPERATURE – ⴗC
OUTPUT VOLTAGE – V
0.40
0.35
0.15
–50
0.20
–25 0 25 50 75 100 125
I = 8mA
0.25
0.30
TPC 4. Receiver Output Low Voltage vs. Temperature
OUTPUT VOLTAGE – V
90
0
OUTPUT CURRENT – mA
0
10
20
30
40
50
60
70
80
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
TPC 5. Output Current vs. Driver Differential
Output Voltage
TEMPERATURE – ⴗC
2.15
–50
DIFFERENTIAL VOLTAGE – V
1.90
1.95
2.00
2.05
2.10
–25 0 25 50 75 100 125
TPC 6. Driver Differential Output Voltage vs.
Temperature, R
L
= 26.8
Ω
REV. E
ADM485
–7–
OUTPUT VOLTAGE – V
OUTPUT CURRENT – mA
100
00 4.0
1.0 2.0 3.0
90
60
50
30
10
80
70
40
20
0.5 1.5 2.5 3.5 4.5
TPC 7. Output Current vs. Driver Output Low Voltage
OUTPUT VOLTAGE – V
OUTPUT CURRENT – mA
0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
1.0 2.0 3.0 4.0 5.0
–110
–120 0.5 1.5 2.5 3.5 4.5
TPC 8. Output Current vs. Driver Output High Voltage
TEMPERATURE – ⴗC
–50
SUPPLY CURRENT – mA
1.0
–25 0 25 50 75 100 125
0.9
0.7
0.5
DRIVER ENABLED
DRIVER DISABLED
1.1
0.8
0.6
TPC 9. Supply Current vs. Temperature
| tPLH – tPHL |
TEMPERATURE – ⴗC
TIME – ns
–50
0.7
0.6
0.5
0.4
–25 0 25 50 75 100 125
0.3
0.2
0.1
0
TPC 10. Rx Skew vs. Temperature
TEMPERATURE – ⴗC
TIME – ns
–50
1
–25 0 25 50 75 100 125
0
2
3
4
5
6
| t
PHLA
– t
PHLB
|
| t
PLHA
– t
PLHB
|
TPC 11. Tx Skew vs. Temperature
TEMPERATURE – ⴗC
PWD
1.2
–50
0.8
0.6
0.4
–25 0 25 50 75 100 125
0.2
0
1.0
1.4
150
| tPLH – tPHL |
TPC 12. Tx Pulse Width Distortion
REV. E
–8–
ADM485
1, 2
A
B
TPC 13. Unloaded Driver Differential Outputs
1, 2
A
B
TPC 14. Loaded Driver Differential Outputs
4
1, 2
3
A
B
DI
RO
TPC 15. Driver/Receiver Propagation Delays Low to High
4
1, 2
3
A
B
DI
RO
TPC 16. Driver/Receiver Propagation Delays High to Low
1, 2
A
B
TPC 17. Driver Output at 30 Mbps
REV. E
ADM485
–9–
on the bus. Only one driver can transmit at a particular time, but
multiple receivers may be enabled simultaneously.
As with any transmission line, it is important that reflections be
minimized. This can be achieved by terminating the extreme ends
of the line using resistors equal to the characteristic impedance
of the line. Stub lengths of the main line should also be kept as
short as possible. A properly terminated transmission line appears
purely resistive to the driver.
RT
RT
D
R
DD
RR
D
R
Figure 5. Typical RS-485 Network
Thermal Shutdown
The ADM485 contains thermal shutdown circuitry that protects the
part from excessive power dissipation during fault conditions.
Shorting the driver outputs to a low impedance source can result
in high driver currents. The thermal sensing circuitry detects the
increase in die temperature and disables the driver outputs. The
thermal sensing circuitry is designed to disable the driver outputs
when a die temperature of 150°C is reached. As the device cools,
the drivers are re-enabled at 140°C.
Propagation Delay
The ADM485 features very low propagation delay, ensuring
maximum baud rate operation. The driver is well balanced, ensuring
distortion free transmission.
Another important specification is a measure of the skew between
the complementary outputs. Excessive skew impairs the noise
immunity of the system and increases the amount of electro-
magnetic interference (EMI).
Receiver Open-Circuit Fail-Safe
The receiver input includes a fail-safe feature that guarantees
a Logic High on the receiver when the inputs are open circuit
or floating.
APPLICATION INFORMATION
Differential Data Transmission
Differential data transmission is used to reliably transmit data at
high rates over long distances and through noisy environments.
Differential transmission nullifies the effects of ground shifts and
noise signals that appear as common-mode voltages on the line.
There are two main standards approved by the Electronics
Industries Association (EIA) that specify the electrical charac-
teristics of transceivers used in differential data transmission.
The RS-422 standard specifies data rates up to 10 MBaud and
line lengths up to 4000 ft. A single driver can drive a transmission
line with up to 10 receivers.
In order to cater for true multipoint communications, the
RS-485 standard was defined. This standard meets or exceeds
all the
requirements of RS-422 but also allows for up to 32
drivers and 32 receivers to be connected to a single bus. An
extended common-mode range of –7 V to +12 V is defined. The
most significant difference between RS-422 and RS-485 is the
fact that the drivers may be disabled, thereby allowing more
than one (32 in fact) to be connected to a single line. Only one
driver should be enabled at a time, but the RS-485 standard
contains additional specifications to guarantee device safety in
the event of line contention.
Table III. Comparison of RS-422 and RS-485 Interface Standards
Specification RS-422 RS-485
Transmission Type Differential Differential
Maximum Cable Length 4000 ft. 4000 ft.
Minimum Driver Output Voltage ⫾2 V ⫾1.5 V
Driver Load Impedance 100 Ω54 Ω
Receiver Input Resistance 4 kΩ min 12 kΩ min
Receiver Input Sensitivity ⫾200 mV ⫾200 mV
Receiver Input Voltage Range –7 V to +7 V –7 V to +12 V
No. of Drivers/Receivers per Line 1/10 32/32
Cable and Data Rate
The transmission line of choice for RS-485 communications
is a twisted pair. Twisted pair cable tends to cancel common-
mode noise and causes cancellation of the magnetic fields gener-
ated by the current flowing through each wire, thereby reducing
the effective inductance of the pair.
The ADM485 is designed for bidirectional data communications
on multipoint transmission lines. A typical application showing
a multipoint transmission network is illustrated in Figure 5.
An RS-485 transmission line can have as many as 32 transceivers
REV. E
–10–
ADM485
OUTLINE DIMENSIONS
8-Lead Standard Small Outline Package [SOIC]
(R-8)
Dimensions shown in millimeters and (inches)
0.25 (0.0098)
0.17 (0.0067)
1.27 (0.0500)
0.40 (0.0157)
0.50 (0.0196)
0.25 (0.0099) ⴛ 45ⴗ
8ⴗ
0ⴗ
1.75 (0.0688)
1.35 (0.0532)
SEATING
PLANE
0.25 (0.0098)
0.10 (0.0040)
85
41
5.00 (0.1968)
4.80 (0.1890)
4.00 (0.1574)
3.80 (0.1497)
1.27 (0.0500)
BSC
6.20 (0.2440)
5.80 (0.2284)
0.51 (0.0201)
0.31 (0.0122)
COPLANARITY
0.10
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
COMPLIANT TO JEDEC STANDARDS MS-012AA
8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
0.23
0.08
0.80
0.40
8ⴗ
0ⴗ
85
4
1
4.90
BSC
PIN 1
0.65 BSC
3.00
BSC
SEATING
PLANE
0.15
0.00
0.38
0.22
1.10 MAX
3.00
BSC
COMPLIANT TO JEDEC STANDARDS MO-187AA
COPLANARITY
0.10
REV. E
ADM485
–11–
8-Lead Plastic Dual In-Line Package [PDIP]
(N-8)
Dimensions shown in inches and (millimeters)
SEATING
PLANE
0.180
(4.57)
MAX
0.150 (3.81)
0.130 (3.30)
0.110 (2.79) 0.060 (1.52)
0.050 (1.27)
0.045 (1.14)
8
14
5
0.295 (7.49)
0.285 (7.24)
0.275 (6.98)
0.100 (2.54)
BSC
0.375 (9.53)
0.365 (9.27)
0.355 (9.02)
0.150 (3.81)
0.135 (3.43)
0.120 (3.05)
0.015 (0.38)
0.010 (0.25)
0.008 (0.20)
0.325 (8.26)
0.310 (7.87)
0.300 (7.62)
0.022 (0.56)
0.018 (0.46)
0.014 (0.36)
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
COMPLIANT TO JEDEC STANDARDS MO-095AA
0.015
(0.38)
MIN
OUTLINE DIMENSIONS
REV. E
C00078–0–10/03(E)
–12–
ADM485
Revision History
Location Page
10/03—Data Sheet changed from REV. D to REV. E.
Changes to TIMING SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Updated ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7/03—Data Sheet changed from REV. C to REV. D.
Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Update to OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1/03—Data Sheet changed from REV. B to REV. C.
Change to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Change to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
12/02—Data Sheet changed from REV. A to REV. B.
Deleted Q-8 Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Universal
Edits to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Edits to GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Edits, additions to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Edits, additions to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Additions to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
TPCs updated and reformatted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Addition of 8-Lead MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Update to OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
