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參數資料
| 型號： | ADM3491 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver |
| 中文描述： | 3.3伏特，全雙工，840微安為20 Mbps，環境影響評估的RS - 485收發器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 288K |
| 代理商： | ADM3491 |
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADM3491
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
3.3 V Full Duplex, 840
m
A
20 Mbps, EIARS-485 Transceiver
FUNCT IONAL BLOCK DIAGRAM
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D
RE
DE
DI
A
B
Z
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ADM3491
RO
FEATURES
Operates with +3.3 V Supply
EIA RS-422 and RS-485 Compliant Over Full CM Range
19 k
V
Input Impedance
Up to 50 Transceivers on Bus
20 Mbps Data Rate
Short Circuit Protection
Specified Over Full Temperature Range
Thermal Shutdown
Interoperable with 5 V Logic
840
m
A Supply Current
2 nA Shutdown Current
Also Available in TSSOP Package
Meets IEC1000-4-4 (>1 kV)
8 ns Skew
Upgrade for MAX 3491, SN75ALS180
APPLICATIONS
Telecommunications
DTE-DCE Interface
Packet Switching
Local Area Networks
Data Concentration
Data Multiplexers
Integrated Services Digital Network (ISDN)
AppleTalk
Industrial Controls
GE NE RAL DE SCRIPT ION
T he ADM3491 is a low power differential line transceiver
designed to operate using a single +3.3 V power supply. Low
power consumption coupled with a shutdown mode make it
ideal for power sensitive applications. It is suitable for commu-
nication on multipoint bus transmission lines.
It is intended for balanced data transmission and complies with
both EIA Standards RS-485 and RS-422. It contains a differen-
tial line driver and a differential line receiver, making it suitable
for full duplex data transfer.
T he input impedance is 19 k
allowing up to 50 transceivers to
be connected on the bus.
Excessive power dissipation caused by bus contention or by
output shorting is prevented by a thermal shutdown circuit.
T his 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.
T he receiver contains a fail-safe feature that results in a
logic high output state if the inputs are unconnected
(floating).
T he ADM3491 is fabricated on BiCMOS, an advanced
mixed technology process combining low power CMOS
with fast switching bipolar technology.
T he ADM3491 is fully specified over the industrial tem-
perature range and is available in DIP and SOIC packages
as well as a new space saving T SSOP package.
相關PDF資料 |
PDF描述 |
|---|---|
| ADM3491AN | 3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver |
| ADM3491AR | MOSFET; Transistor Polarity:N Channel; Drain Source Voltage, Vds:90V; Continuous Drain Current, Id:0.86A; On-Resistance, Rds(on):4ohm; Rds(on) Test Voltage, Vgs:10V; Package/Case:TO-205AD; Drain-Source Breakdown Voltage:90V RoHS Compliant: No |
| ADM483EAN | +-15 kV ESD Protected, EMC Compliant Slew Rate Limited, EIA RS-485 Transceiver |
| ADM483EAR | +-15 kV ESD Protected, EMC Compliant Slew Rate Limited, EIA RS-485 Transceiver |
| ADM483E | +-15 kV ESD Protected, EMC Compliant Slew Rate Limited, EIA RS-485 Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM3491AN | 制造商:Analog Devices 功能描述:LINE TRANSMITTER/RCVR 1TR 1TX 1RX 14PDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:3V FULL DUPLEX RS 485 I.C. - Bulk |
| adm3491an-1 | 制造商:Analog Devices 功能描述: |
| ADM3491ANZ | 制造商:Analog Devices 功能描述:LINE TRANSMITTER/RCVR 1TR 1TX 1RX 14PDIP - Rail/Tube |
| ADM3491ANZ-1 | 制造商:Analog Devices 功能描述:LINE TRANSMITTER/RCVR 1TR 1TX 1RX 14PDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| ADM3491AR | 功能描述:IC TX/RX RS-485 HS 3.3V 14SOIC 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 |
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