參數(shù)資料
型號： ADM3222ARS
廠商： Analog Devices Inc
文件頁數(shù)： 1/16頁
文件大小： 0K
描述： IC TX/RX RS-232 3.3V W/SD 20SSOP
標(biāo)準(zhǔn)包裝： 66
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 2/2
規(guī)程： RS232
電源電壓： 3 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 20-SSOP
包裝： 管件
Low Power, 3.3 V, RS-232
Line Drivers/Receivers
ADM3202/ADM3222/ADM1385
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
1998–2011 Analog Devices, Inc. All rights reserved.
FEATURES
460 kbps data rate
Specified at 3.3 V
Meets EIA-232E specifications
0.1 μF charge pump capacitors
Low power shutdown (ADM3222 and ADM1385)
PDIP, SOIC_N, SOIC_W, SSOP, and TSSOP options
Upgrade for MAX3222/MAX3232 and LTC1385
ESD protection to IEC 1000-4-2 (801.2)
on RS-232 pins (ADM3202 only)
±8 kV: contact discharge
±15 kV: air gap discharge
APPLICATIONS
General-purpose RS-232 data link
Portable instruments
Printers, palmtop computers, PDAs
GENERAL DESCRIPTION
The ADM3202/ADM3222/ADM1385 transceivers are high
speed, 2-channel RS-232/V.28 interface devices that operate
from a single 3.3 V power supply. Low power consumption and
a shutdown facility (ADM3222/ADM1385) make them ideal for
battery-powered portable instruments.
The ADM3202/ADM3222/ADM1385 parts conform to the
EIA-232E and CCITT V.28 specifications and operate at data
rates up to 460 kbps.
Four external 0.1 μF charge pump capacitors are used for the
voltage doubler/inverter, permitting operation from a single
3.3 V supply.
The ADM3222 contains additional enable and shutdown
circuitry. The EN input can be used to three-state the receiver
outputs. The SD input is used to power down the charge pump
and transmitter outputs, reducing the quiescent current to less
than 0.5 μA. The receivers remain enabled during shutdown
unless disabled using EN.
The ADM1385 contains a driver disable mode and a complete
shutdown mode.
The ADM3202 is available in a 16-lead PDIP, SOIC_W, and
SOIC_N, as well as a space-saving 16-lead TSSOP. The ADM3222
is available in 18-lead PDIP and SOIC_W and in 20-lead SSOP
and TSSOP. The ADM1385 is available in a 20-lead SSOP,
which is pin-compatible with the LTC1385 CG.
FUNCTIONAL BLOCK DIAGRAMS
C1+
C2+
C1–
C2–
VCC
V–
V+
T1IN
T1OUT
T2IN
T2OUT
R1OUT
R1IN
R2OUT
R2IN
CMOS
INPUTS
EIA/TIA-232
OUTPUTS
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
T1
T2
R1
R2
+
0.1F
10V
0.1F
10V
GND ADM3202
C3
0.1F
6.3V
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
DOUBLER
+6.6V TO –6.6V
VOLTAGE
INVERTER
C5
0.1F
+
C4
0.1F
10V
+
*INTERNAL 5k PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
00
07
1-
00
1
Figure 1.
C1+
C2+
C1–
C2–
VCC
V–
V+
T1IN
T1OUT
T2IN
T2OUT
R1OUT
R1IN
R2OUT
EN
R2IN
SD
CMOS
INPUTS
EIA/TIA-232
OUTPUTS
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
T1
T2
R1
R2
+
0.1F
10V
0.1F
10V
GND
ADM3222
C3
0.1F
6.3V
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
DOUBLER
+6.6V TO –6.6V
VOLTAGE
INVERTER
C5
0.1F
+
C4
0.1F
10V
+
*INTERNAL 5k PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
00
07
1-
00
2
Figure 2.
C1+
C2+
C1–
C2–
VCC
V–
V+
T1IN
T1OUT
T2IN
T2OUT
R1OUT
R1IN
R2OUT
DD
R2IN
SD
CMOS
INPUTS
EIA/TIA-232
OUTPUTS
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
T1
T2
R1
R2
+
0.1F
10V
0.1F
10V
GND
ADM1385
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
DOUBLER
+6.6V TO –6.6V
VOLTAGE
INVERTER
C5
0.1F
+
*INTERNAL 5k PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
00
071-
00
3
C3
0.1F
10V
C4
0.1F
10V
Figure 3.
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ADM3222ARS-REEL7 功能描述:IC TXRX RS232 3.3V W/SD 20SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)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(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件
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ADM3222ARSZ 制造商:Analog Devices 功能描述:Line Driver IC
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