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ADM1485
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ANALOG DEVICES ADM1485 Service Manual

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5 V Low Power
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a
FEATURES Meets EIA RS-485 Standard 30 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 LTC1485
APPLICATIONS Low Power RS-485 Systems DTE-DCE Interface Packet Switching Local Area Networks Data Concentration Data Multiplexers Integrated Services Digital Network (ISDN)
EIA RS-485 Transceiver
ADM1485

FUNCTIONAL BLOCK DIAGRAM

8-Lead
ADM1485
RO
RE
DE
R
DI
D
V
CC
B
A
GND

GENERAL DESCRIPTION

The ADM1485 is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus trans­mission lines. It is designed for balanced data transmission and complies with both RS-485 and RS-422 EIA Standards. 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 ADM1485 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 condi­tions, 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 ADM1485 driver features high output impedance when disabled and also 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 ADM1485 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 ADM1485 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 MSOP packages.
REV. E
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 © 2003 Analog Devices, Inc. All rights reserved.
ADM1485–SPECIFICATIONS
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(VCC = 5 V ⴞ 5%. All specifications T
MIN
to T
, unless otherwise noted.)
MAX
Parameter Min Typ Max Unit Test Conditions/Comments
DRIVER
Differential Output Voltage, V
OD
2.0 5.0 V V
5.0 V R = ∞, Test Circuit 1 = 5 V, R = 50 Ω (RS-422), Test Circuit 1
CC
1.5 5.0 V R = 27 Ω (RS-485), Test Circuit 1
V
OD3
∆|V
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω, Test Circuit 1
OD
Common-Mode Output Voltage V ∆|V
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω
OD
Output Short-Circuit Current (V Output Short-Circuit Current (V CMOS Input Logic Threshold Low, V CMOS Input Logic Threshold High, V
OC
= High) 35 250 mA –7 V ≤ VO ≤ +12 V
OUT
= Low) 35 250 mA –7 V ≤ VO ≤ +12 V
OUT
INL
INH
1.5 5.0 V V
3VR = 27 Ω or 50 Ω, Test Circuit 1
0.8 V
2.0 V
= –7 V to +12 V, Test Circuit 2
TST
Logic Input Current (DE, DI) ± 1.0 µA
RECEIVER
Differential Input Threshold Voltage, V Input Voltage Hysteresis, ∆V
TH
TH
Input Resistance 12 kΩ –7 V ≤ V Input Current (A, B) 1 mA V
CMOS Input Logic Threshold Low, V CMOS Input Logic Threshold High, V
INL
INH
–0.2 +0.2 V –7 V ≤ VCM ≤ +12 V
70 mV VCM = 0 V
≤ +12 V
CM
= +12 V
–0.8 mA V
IN
= –7 V
IN
0.8 V
2.0 V
Logic Enable Input Current (RE) ± 1 µA CMOS Output Voltage Low, V CMOS Output Voltage High, V
OL
OH
4.0 V I Short-Circuit Output Current 7 85 mA V Three-State Output Leakage Current ± 1.0 µA 0.4 V ≤ V
0.4 V I
= +4.0 mA
OUT
= –4.0 mA
OUT
= GND or V
OUT
OUT
CC
≤ 2.4 V
POWER SUPPLY CURRENT
ICC (Outputs Enabled) 1.0 2.2 mA Digital Inputs = GND or V ICC (Outputs Disabled) 0.6 1 mA Digital Inputs = GND or V
Specifications subject to change without notice.
CC
CC

TIMING SPECIFICATIONS

(VCC = 5 V ⴞ 5%. All specifications T
MIN
to T
, unless otherwise noted.)
MAX
Parameter Min Typ Max Unit Test Conditions/Comments
DRIVER
Propagation Delay Input to Output t Driver O/P to O/P t Driver Rise/Fall Time t
SKEW
, t
R
F
Driver Enable to Output Valid 10 25 ns R Driver Disable Timing 10 25 ns R Matched Enable Switching 0 2 ns R |t
AZH–tBZL
|, |t
BZH–tAZL
| Matched Disable Switching 0 2 ns R |t
AHZ–tBLZ
|, |t
BHZ–tALZ
|
PLH
, t
21015 nsR
PHL
15 nsR 815 nsR
= 54 Ω, CL1 = CL2 = 100 pF, Test Circuit 3
LDIFF
= 54 Ω, CL1 = CL2 = 100 pF, Test Circuit 3
LDIFF
= 54 Ω, CL1 = CL2 = 100 pF, Test Circuit 3
LDIFF
= 110 Ω, CL = 50 pF, Test Circuit 4
L
= 110 Ω, CL = 50 pF, Test Circuit 4
L
= 110 Ω, CL = 50 pF, Test Circuit 4*
L
= 110 Ω, CL = 50 pF, Test Circuit 4*
L
RECEIVER
Propagation Delay Input to Output t Skew |t
PLH–tPHL
Receiver Enable t Receiver Disable t
|5nsC
EN1
EN2
PLH
, t
PHL
81530 nsC
520 nsC 520 nsC
= 15 pF, Test Circuit 5
L
= 15 pF, Test Circuit 5
L
= 15 pF, RL = 1 kΩ, Test Circuit 6
L
= 15 pF, RL = 1 kΩ, Test Circuit 6
L
Tx Pulse Width Distortion 1 ns Rx Pulse Width Distortion 1 ns
*Guaranteed by characterization.
Specifications subject to change without notice.
REV. E–2–
ADM1485
www.BDTIC.com/ADI

ABSOLUTE MAXIMUM RATINGS*

(TA = 25°C, unless otherwise noted.)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Inputs
Driver Input (DI) . . . . . . . . . . . . . . . .–0.3 V to V
Control Inputs (DE, RE) . . . . . . . . . . –0.3 V to V
+ 0.3 V
CC
+ 0.3 V
CC
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
+ 0.5 V
CC
Power Dissipation 8-Lead MSOP . . . . . . . . . . . . . . . 900 mW
θ
, Thermal Impedance . . . . . . . . . . . . . . . . . . . 206°C/W
JA
Power Dissipation 8-Lead PDIP . . . . . . . . . . . . . . . . 500 mW
θ
, Thermal Impedance . . . . . . . . . . . . . . . . . . . 130°C/W
JA
Power Dissipation 8-Lead SOIC . . . . . . . . . . . . . . . . 450 mW
θ
, Thermal Impedance . . . . . . . . . . . . . . . . . . . 170°C/W
JA
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.
Table I. Transmitting
Inputs Outputs
DE DI B A
11 0 1 10 1 0 0XZ Z
Table II. Receiving
Inputs Outputs
RE A-B RO
0 ≥ +0.2 V 1 0 ≤ –0.2 V 0 0 Inputs Open 1 1X Z
Model Range Option Branding
ADM1485JN 0°C to 70°C N-8 ADM1485JR 0°C to 70°CR-8 ADM1485JR-REEL 0°C to 70°CR-8 ADM1485JR-REEL7 0°C to 70°CR-8 ADM1485AN –40°C to +85°C N-8 ADM1485AR –40°C to +85°CR-8 ADM1485AR-REEL –40°C to +85°CR-8 ADM1485AR-REEL7 –40°C to +85°CR-8 ADM1485ARM –40°C to +85°C RM-8 M42 ADM1485ARM-REEL –40°C to +85°C RM-8 M42 ADM1485ARM-REEL7 –40°C to +85°C RM-8 M42 ADM1485ARZ* ADM1485ARZ-REEL ADM1485ARZ-REEL7 ADM1485JCHIPS DIE
*Z = lead-free part.

PIN FUNCTION DESCRIPTIONS

Pin Mnemonic Function No.
1ROReceiver Output. When enabled if A > B
by 200 mV, then RO = High. If A < B by 200 mV, then RO = Low.
2 RE 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%.

PIN CONFIGURATION

RO
RE
DE
1
ADM1485
2
TOP VIEW
3
(Not to Scale)
4
8
V
CC
7
B
6
A
5
GNDDI

ORDERING GUIDE

Temperature Package
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 ADM1485 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.
REV. E
–3–
ADM1485
www.BDTIC.com/ADI

Test Circuits

Test Circuit 1. Driver Voltage Measurement
Test Circuit 2. Driver Voltage Measurement
Test Circuit 3. Driver Propagation Delay
V
CC
R
L
S2
DE
A
S1
C
V
L
B
OUT
R
V
OD
R
V
OC
0V OR 3V
DE IN
Test Circuit 4. Driver Enable/Disable
375⍀
A
V
V
OD3
60⍀
375⍀
V
TST
RE
B
OUT
C
L
Test Circuit 5. Receiver Propagation Delay
+1.5V
A
R
LDIFF
B
C
L1
C
L2
–1.5V
RE IN
S1
RE
R
C
V
L
OUT
V
CC
L
S2
Test Circuit 6. Receiver Enable/Disable

Switching Characteristics

3V
–V
0V
B
A
V
O
0V
O
V
O
10% POINT
1/2VO
90% POINT
1.5V
t
PLH
t
= 円
t
PLH
–
SKEW
t
R
1.5V
t
PHL
t
円
PHL
90% POINT
10% POINT
t
F
Figure 1. Driver Propagation Delay, Rise/Fall Timing
3V
DE
A, B
A, B
1.5V
t
ZL
t
ZH
2.3V
2.3V
t
t
1.5V
LZ
HZ
V
V
OL
OH
+ 0.5V
– 0.5V
0V
V
OL
V
OH
0V
Figure 2. Driver Enable/Disable Timing
A, B
RO
t
0V
PLH
1.5V
t
SKEW
= 円
t
–
t
PLH
PHL
Figure 3. Receiver Propagation Delay
RE
R
R
0V
1.5V
t
t
ZH
ZL
1.5V
O/P LOW
t
t
O/P HIGH
1.5V
Figure 4. Receiver Enable/Disable Timing
t
円
1.5V
LZ
HZ
0V
PHL
VOL + 0.5V
V
OH
1.5V
– 0.5V
V
OH
V
OL
3V
0V
V
OL
V
OH
REV. E–4–
Typical Performance Characteristics–ADM1485
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
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
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50
45
40
35
30
25
20
15
OUTPUT CURRENT – mA
10
5
0
0.25 0.75 1.25 1.50 2.00
0
TPC 1. Output Current vs. Receiver Output Low Voltage
0.50 1.00 1.75 OUTPUT VOLTAGE – V
TPC 4. Receiver Output Low Voltage vs. Temperature
0
–2
–4
–6
–8
–10
–12
OUTPUT CURRENT – mA
–14
–16
–18
3.50
4.00 4.75 5.004.253.75 4.50 OUTPUT VOLTAGE – V
TPC 2. Output Current vs. Receiver Output High Voltage
4.55
4.50
4.45
4.40
I = 8mA
90
80
70
60
50
40
30
OUTPUT CURRENT – mA
20
10
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 OUTPUT VOLTAGE – V
TPC 5. Output Current vs. Driver Differential Output Voltage
4.35
4.30
OUTPUT VOLTAGE – V
4.25
4.20
4.15 –50 –25 1250255075100
TEMPERATURE – ⴗC
TPC 3. Receiver Output High Voltage vs. Temperature
REV. E
–5–
TPC 6. Driver Differential Output Voltage vs. Temperature, R
= 26.8
L
Ω
ADM1485
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100
90
80
70
60
50
40
30
OUTPUT CURRENT – mA
20
10
0
0.5 1.5 2.5 3.5 4.5
0 4.0
1.0 2.0 3.0 OUTPUT VOLTAGE – V
TPC 7. Output Current vs. Driver Output Low Voltage
0
–10
–20
–30
–40
–50
–60
–70
–80
OUTPUT CURRENT – mA
–90
–100
–110
–120
0
1.0 2.0 3.0 4.0 5.0
0.5 1.5 2.5 3.5 4.5 OUTPUT VOLTAGE – V
TPC 8. Output Current vs. Driver Output High Voltage
0.7
0.6
0.5
| t
– t
|
PLH
0.4
0.3
TIME – ns
0.2
0.1
0
–50
–25 0 25 50 75 100 125
TEMPERATURE – ⴗC
PHL
TPC 10. Rx Skew vs. Temperature
6
5
4
3
TIME – ns
2
0
–501–25 0 25 50 75 100 125
| t
| t
PHLA
PLHA
– t
PHLB
– t
|
|
PLHB
TEMPERATURE – ⴗC
TPC 11. Tx Skew vs. Temperature
1.1
1.0
DRIVER ENABLED
0.9
0.8
0.7
SUPPLY CURRENT – mA
0.6
0.5 –25 0 25 50 75 100 125
–50
DRIVER DISABLED
TEMPERATURE – ⴗC
TPC 9. Supply Current vs. Temperature
1.4
1.2
1.0
0.8
PWD
0.6
0.4
0.2
0
–50
–25 0 25 50 75 100 125
TEMPERATURE – ⴗC
| t
TPC 12. Tx Pulse Width Distortion
PLH
– t
PHL
|
150
REV. E–6–
ADM1485
www.BDTIC.com/ADI
A
B
1, 2
TPC 13. Unloaded Driver Differential Outputs
A
B
4
1, 2
3
DI
A
B
RO
TPC 16. Driver/Receiver Propagation Delays High to Low
A
B
1, 2
TPC 14. Loaded Driver Differential Outputs
DI
4
A
B
1, 2
3
RO
TPC 15. Driver/Receiver Propagation Delays Low to High
1, 2
TPC 17. Driver Output at 30 Mbps
REV. E
–7–
ADM1485
RT
www.BDTIC.com/ADI
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 charac­teristics 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 to true multipoint communications, the RS-485 standard was defined. This standard meets or exceeds all the requirements of the 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 the RS-422 and the 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 Ω 54 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 also causes cancellation of the magnetic fields generated by the current flowing through each wire, thereby reducing the effective inductance of the pair.
The ADM1485 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 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 are 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
D
R
Figure 5. Typical RS-485 Network

Thermal Shutdown

DD
R
R
D
R
The ADM1485 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 ADM1485 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 electro­magnetic 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.
REV. E–8–

OUTLINE DIMENSIONS

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ADM1485
8-Lead Standard Small Outline Package [SOIC]
Narrow Body
(R-8)
Dimensions shown in millimeters and (inches)
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
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
85
1.27 (0.0500)
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MS-012AA
BSC
6.20 (0.2440)
5.80 (0.2284)
41
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
0.31 (0.0122)
0.25 (0.0098)
0.17 (0.0067)
0.50 (0.0196)
0.25 (0.0099)
8ⴗ 0ⴗ
1.27 (0.0500)
0.40 (0.0157)
ⴛ 45ⴗ
8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
3.00
BSC
85
3.00 BSC
1
PIN 1
0.65 BSC
0.15
0.00
0.38
0.22
COPLANARITY
0.10
COMPLIANT TO JEDEC STANDARDS MO-187AA
4
SEATING PLANE
4.90 BSC
1.10 MAX
0.23
0.08
8ⴗ 0ⴗ
0.80
0.60
0.40
8-Lead Plastic Dual In-Line Package [PDIP]
(N-8)
Dimensions shown in inches and (millimeters)
0.375 (9.53)
0.365 (9.27)
0.355 (9.02)
8
1
0.100 (2.54)
0.180
(4.57)
MAX
0.150 (3.81)
0.130 (3.30)
0.110 (2.79)
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
BSC
5
4
0.295 (7.49)
0.285 (7.24)
0.275 (6.98)
0.015 (0.38) MIN
SEATING PLANE
0.060 (1.52)
0.050 (1.27)
0.045 (1.14)
0.325 (8.26)
0.310 (7.87)
0.300 (7.62)
0.015 (0.38)
0.010 (0.25)
0.008 (0.20)
0.150 (3.81)
0.135 (3.43)
0.120 (3.05)
REV. E
–9–
ADM1485
www.BDTIC.com/ADI

Revision History

Location Page
9/03—Data Sheet changed from REV. D to REV. E.
Change to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7/03—Data Sheet changed from REV. C to REV. D.
Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Updated ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
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
REV. E–10–
www.BDTIC.com/ADI
–11–
C00063–0–9/03(E)
www.BDTIC.com/ADI
–12–
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