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參數資料
| 型號： | ADM1485JN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | +-5 V Low Power EIA RS-485 Transceiver |
| 中文描述： | LINE TRANSCEIVER, PDIP8 |
| 封裝： | PLASTIC, MO-095AA, DIP-8 |
| 文件頁數： | 3/8頁 |
| 文件大小： | 139K |
| 代理商： | ADM1485JN |
ADM1485
REV. A
–3–
ABSOLUTE MAXIMUM RATINGS*
(T
A
= +25
°
C unless otherwise noted)
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +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) . . . . . . . . . . . . . . . . .–14 V to +14 V
Outputs
Driver Outputs . . . . . . . . . . . . . . . . . . . . . . .–14 V to +14 V
Receiver Output . . . . . . . . . . . . . . . . .–0.5 V to V
CC
+ 0.5 V
Power Dissipation 8-Lead DIP . . . . . . . . . . . . . . . . . 500 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . +130
°
C/W
Power Dissipation 8-Lead SOIC . . . . . . . . . . . . . . . . 450 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . +170
°
C/W
Power Dissipation 8-Lead Cerdip . . . . . . . . . . . . . . . 500 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . +125
°
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.
Table I. Transmitting
INPUTS
DE
OUTPUTS
B
RE
DI
A
X
X
X
1
1
0
1
0
X
0
1
Z
1
0
Z
Table II. Receiving
INPUTS
DE
OUTPUT
RO
RE
A-B
≥
+0.2 V
≤
–0.2 V
Inputs Open
X
0
0
0
1
0
0
0
0
1
0
1
Z
PIN FUNCTION DESCRIPTION
Pin Mnemonic
Function
1
RO
Receiver Output. When enabled if A > B
by 200 mV, then RO = High. If A < B by
200 mV, then RO = Low.
Receiver Output Enable. A low level enables
the receiver output, RO. A high level places
it in a high impedance state.
Driver Output Enable. A high level enables
the driver differential outputs, A and B. A
low level places it in a high impedance state.
Driver 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.
Ground Connection, 0 V.
Noninverting Receiver Input A/Driver
Output A.
Inverting Receiver Input B/Driver Output B.
Power Supply, 5 V
±
5%.
2
RE
3
DE
4
DI
5
6
GND
A
7
8
B
V
CC
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
RO
RE
DE
V
CC
B
A
GND
DI
ADM1485
ORDERING GUIDE
Temperature
Range
0
°
C to +70
°
C
0
°
C to +70
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Package
Option
Model
ADM1485JN
ADM1485JR
ADM1485AN
ADM1485AR
ADM1485AQ
N-8
SO-8
N-8
SO-8
Q-8
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.
WARNING!
ESD SENSITIVE DEVICE
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM1485JNZ | 功能描述:IC TXRX RS485 HS 5V 8DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:1 系列:- 類型:線路收發器 驅動器/接收器數:5/3 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:Digi-Reel® 產品目錄頁面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6 |
| ADM1485JR | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 8-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:RS-485 HIGH SPEED I/F TX. - Bulk 制造商:Analog Devices 功能描述:IC TRANSCEIVER RS485 |
| ADM1485JR-REEL | 功能描述:IC TXRX RS-485 HS 5V 8SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:121 系列:- 類型:收發器 驅動器/接收器數:1/1 規程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-DFN（3x3） 包裝:管件 |
| ADM1485JR-REEL7 | 制造商:Analog Devices 功能描述: |
| ADM1485JRZ | 功能描述:IC TX/RX RS-485 HS 5V 8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:98 系列:* |
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