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ADM238L 데이터시트 PDF




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부품번호 ADM238L 기능
기능 CMOS RS-232 Drivers/Receivers
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ADM238L 데이터시트, 핀배열, 회로
a
5 V Powered
CMOS RS-232 Drivers/Receivers
ADM223/ADM230L–ADM241L
FEATURES
ADM232L TYPICAL OPERATING CIRCUIT
Single 5 V Power Supply
5V INPUT
Meets All EIA-232-E and V.28 Specifications
120 kB/s Data Rate
On-Board DC-DC Converters
1F
6.3V
C1+ +5V TO +10V VCC
VOLTAGE
C1– DOUBLER
V+
1F
6.3V
1F
6.3V
؎9 V Output Swing with 5 V Supply
Small 1 F Capacitors
Low Power Shutdown 1 A
Receivers Active in Shutdown (ADM223)
؎30 V Receiver Input Levels
Latch-Up FREE
Plug-In Upgrade for MAX223/230-241
Plug-In Upgrade for AD230–AD241
OAPPLICATIONS
Computers
BPeripherals
SModems
Printers
OInstruments
LGENERAL DESCRIPTION
EThe ADM2xx family of line drivers/receivers is intended for all
EIA-232-E and V.28 communications interfaces, especially in
TEapplications where ±12 V is not available. The ADM223,
1F
16V
TTL/CMOS
INPUTS*
T1IN
T2IN
TTL/CMOS
OUTPUTS
R1OUT
R2OUT
C2+ +10V TO –10V
VOLTAGE
C2– INVERTER
V–
T1
T2
R1
R2
GND ADM232L
1F
16V
T1OUT
T2OUT
RS-232
OUTPUTS
R1IN
R2IN
RS-232
INPUTS**
* INTERNAL 400kPULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
** INTERNAL 5kPULL-DOWN RESISTOR ON EACH RS-232 INPUT.
All members of the ADM230L family, except the ADM231L
and the ADM239L, include two internal charge pump voltage
converters that allow operation from a single 5 V supply. These
converters convert the 5 V input power to the ± 10 V required
ADM230L, ADM235L, ADM236L and ADM241L feature a
for RS-232 output levels. The ADM231L and ADM239L are
low power shutdown mode that reduces power dissipation to
less than 5 µW, making them ideally suited for battery powered
designed to operate from 5 V and 12 V supplies. An internal
+12 V to –12 V charge pump voltage converter generates the
equipment. Two receivers remain enabled during shutdown on –12 V supply.
the ADM223. The ADM233L and ADM235L do not require
any external components and are particularly useful in applica-
tions where printed circuit board space is critical.
The ADM2xxL is an enhanced upgrade for the AD2xx family
featuring lower power consumption, faster slew rate and opera-
tion with smaller (1 µF) capacitors.
Table I. Selection Table
Part
Number
ADM223
ADM230L
ADM231L
ADM232L
ADM233L
ADM234L
ADM235L
ADM236L
ADM237L
ADM238L
ADM239L
ADM241L
Power
Supply Voltage
5V
5V
5 V and 7.5 V to 13.2 V
5V
5V
5V
5V
5V
5V
5V
5 V and 7.5 V to 13.2 V
5V
No. of
RS-232
Drivers
4
5
2
2
2
4
5
4
5
4
3
4
No. of
RS-232
Receivers
5
0
2
2
2
0
5
3
3
4
5
5
External
Capacitors
4
4
2
4
None
4
None
4
4
4
2
4
Low Power
Shutdown
(SD)
Yes (SD)
Yes
No
No
No
No
Yes
Yes
No
No
No
Yes
TTL
Three-State
EN
Yes (EN)
No
No
No
No
No
Yes
Yes
No
No
Yes
Yes
No. of
Pins
28
20
14
16
20
16
24
24
24
24
24
28
REV. B
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
under any patent or patent rights of Analog Devices.
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
© Analog Devices, Inc., 2001




ADM238L pdf, 반도체, 판매, 대치품
ADM223/ADM230LADM241L
5V INPUT
1F
6.3V
C1+ +5V TO +10V VCC
VOLTAGE
C1DOUBLER
V+
1F
6.3V
1F
6.3V
T3OUT 1
T1OUT 2
20 T4OUT
19 T5IN
1F
16V
C2+ +10V TO 10V
VOLTAGE
C2INVERTER
V
1F
16V
T2OUT 3
18 NC
T1IN
T1
T1OUT
T2IN 4
17 SD
T1IN 5
GND 6
ADM230L
TOP VIEW
(Not to Scale)
16 T5OUT
15 T4IN
TTL/CMOS
INPUTS*
T2IN
T3IN
T2
T3
T2OUT
T3OUT
RS-232
OUTPUTS
VCC 7
C1+ 8
V+ 9
C110
14 T3IN
13 V
12 C2
11 C2+
NC = NO CONNECT
OBFigure 1. ADM230L DIP/SOIC Pin Configuration
SODIP
LC1+ 1
EC12
TEV3
ADM231L
14 V+
13 VCC
12 GND
T4IN
T5IN
NC
T4
T5
GND ADM230L
T4OUT
T5OUT
SD
* INTERNAL 400kPULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
Figure 2. ADM230L Typical Operating Circuit
T2OUT 4
TOP VIEW
11 T1OUT
5V INPUT
(Not to Scale)
1F
R2IN 5
10 R1IN
R2OUT 6
T2IN 7
9 R1OUT
8 T1IN
SOIC
VCC
V+
7.5V TO 13.2V
1F
C1+
+12V TO 12V
16V
C1
VOLTAGE
INVERTER
V
1F
16V
C1+ 1
C12
16 V+
15 VCC
TTL/CMOS
INPUTS*
T1IN
T2IN
T1
T2
T1OUT
T2OUT
RS-232
OUTPUTS
V3
T2OUT 4
R2IN 5
ADM231L
TOP VIEW
(Not to Scale)
14 GND
13 T1OUT
12 R1IN
TTL/CMOS
OUTPUTS
R1OUT
R2OUT
R1 R1IN
RS-232
INPUTS**
R2 R2IN
R2OUT 6
11 R1OUT
GND ADM231L
T2IN 7
10 T1IN
NC 8
9 NC
NC = NO CONNECT
* INTERNAL 400kPULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
** INTERNAL 5kPULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 3. ADM231L DIP and SOIC Pin Configurations
Figure 4. ADM231L Typical Operating Circuit (DIP Pinout)
–4– REV. B

4페이지










ADM238L 전자부품, 판매, 대치품
ADM223/ADM230LADM241L
5V INPUT
1F
6.3V
C1+ +5V TO +10V VCC
VOLTAGE
C1DOUBLER
V+
1F
6.3V
1F
6.3V
T3OUT 1
24 T4OUT
1F
16V
C2+ +10V TO 10V
VOLTAGE
C2INVERTER
V
1F
16V
T1OUT 2
23 R2IN
T1IN
T1
T1OUT
T2OUT 3
R1IN 4
22 R2OUT
21 SD
T2IN
T2
T2OUT
R1OUT 5
20 EN
TTL/CMOS
INPUTS*
T3IN
T3
T3OUT
RS-232
OUTPUTS
T2IN 6
T1IN 7
ADM236L
TOP VIEW
(Not to Scale)
19 T4IN
18 T3IN
GND 8
VCC 9
C1+ 10
17 R3OUT
16 R3IN
15 V
O V+ 11
14 C2
BC112
13 C2+
SOLETEFigure 13. ADM236L DIP/SOIC Pin Configuration
T4IN
R1OUT
TTL/CMOS
OUTPUTS
R2OUT
R3OUT
EN
T4
R1
R2
R3
GND ADM236L
T4OUT
R1IN
R2IN
RS-232
INPUTS**
R3IN
SD
* INTERNAL 400kPULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
** INTERNAL 5kPULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 14. ADM236L Typical Operating Circuit
5V INPUT
1F
6.3V
C1+ +5V TO +10V VCC
VOLTAGE
C1DOUBLER
V+
1F
6.3V
1F
6.3V
T3OUT 1
T1OUT 2
T2OUT 3
R1IN 4
R1OUT 5
T2IN 6
T1IN 7
GND 8
VCC 9
C1+ 10
V+ 11
C112
ADM237L
TOP VIEW
(Not to Scale)
24 T4OUT
23 R2IN
22 R2OUT
21 T5IN
20 T5OUT
19 T4IN
18 T3IN
17 R3OUT
16 R3IN
15 V
14 C2
13 C2+
1F
16V
T1IN
TTL/CMOS
INPUTS*
T2IN
T3IN
T4IN
T5IN
R1OUT
TTL/CMOS
OUTPUTS
R2OUT
R3OUT
C2+ +10V TO 10V
VOLTAGE
C2INVERTER
V
T1
T2
T3
T4
T5
R1
R2
20
R3
GND ADM237L
1F
16V
T1OUT
T2OUT
T3OUT
RS-232
OUTPUTS
T4OUT
T5OUT
R1IN
R2IN
RS-232
INPUTS**
R3IN
Figure 15. ADM237L DIP/SOIC Pin Configuration
* INTERNAL 400kPULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
** INTERNAL 5kPULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 16. ADM237L Typical Operating Circuit
REV. B
–7–

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ADM238L

CMOS RS-232 Drivers/Receivers

Analog Devices
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