Analog Devices ADM241L, ADM239L, ADM237L, ADM236L, ADM231L Datasheet
...
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
+5 V Powered
CMOS RS-232 Drivers/Receivers
ADM223/ADM230L–ADM241L
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 World Wide Web Site: http://www.analog.com
Fax: 617/326-8703 © Analog Devices, Inc., 1997
ADM232L TYPICAL OPERATING CIRCUIT
Table I. Selection Table
No. of No. of Low Power TTL
Part Power RS-232 RS-232 External Shutdown Three-State No. of
Number Supply Voltage Drivers Receivers Capacitors (SD) EN Pins
ADM223 +5 V 4 5 4 Yes (
SD) Yes (EN) 28
ADM230L +5 V 5 0 4 Yes No 20
ADM231L +5 V & +7.5 V to +13.2 V 2 2 2 No No 14
ADM232L +5 V 2 2 4 No No 16
ADM233L +5 V 2 2 None No No 20
ADM234L +5 V 4 0 4 No No 16
ADM235L +5 V 5 5 None Yes Yes 24
ADM236L +5 V 4 3 4 Yes Yes 24
ADM237L +5 V 5 3 4 No No 24
ADM238L +5 V 4 4 4 No No 24
ADM239L +5 V & +7.5 V to +13.2 V 3 5 2 No Yes 24
ADM241L +5 V 4 5 4 Yes Yes 28
FEATURES
Single 5 V Power Supply
Meets All EIA-232-E and V.28 Specifications
120 kB/s Data Rate
On-Board DC-DC Converters
69 V Output Swing with +5 V Supply
Small 1 mF Capacitors
Low Power Shutdown ≤1 mA
Receivers Active in Shutdown (ADM223)
ESD > 2 kV
630 V Receiver Input Levels
Latch-Up FREE
Plug-In Upgrade for MAX223/230-241
Plug-In Upgrade for AD230–AD241
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
GENERAL DESCRIPTION
The ADM2xx family of line drivers/receivers is intended for all
EIA-232-E and V.28 communications interfaces, especially in
applications where ±12 V is not available. The ADM223,
ADM230L, ADM235L, ADM236L and ADM241L feature a
low power shutdown mode that reduces power dissipation to
less than 5 µW, making them ideally suited for battery powered
equipment. Two receivers remain enabled during shutdown on
the ADM223. The ADM233L and ADM235L do not require
any external components and are particularly useful in applications where printed circuit board space is critical.
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 for RS-232 output levels. The ADM231L and
ADM239L are designed to operate from +5 V and +12 V supplies. An internal +12 V to –12 V charge pump voltage converter generates the –12 V supply.
The ADM2xxL is an enhanced upgrade for the AD2xx family
featuring lower power consumption, faster slew rate and operation with smaller (1 µF) capacitors.
*INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
1µF
16V
1µF
6.3V
+5V INPUT
V
CC
V+
V–
C1+
C1–
C2+
C2–
ADM23 2L
1µF
6.3V
1µF
16V
6
GND
15
4
5
3
1
2
1µF
6.3V
T1
IN
RS-232
OUTPUTS
TTL/CMOS
INPUTS*
T1
OUT
T2
IN
R1
OUT
R2
OUT
T2
OUT
R1
IN
R2
IN
R1
R2
T2
T1
TTL/CMOS
OUTPUTS
RS-232
INPUTS**
13
10
7
11
8
14
9
12
16
REV. 0
–2–
ADM223/ADM230L–ADM241L–SPECIFICA TIONS
VCC = +5 V 6 5% (ADM230L, 33L, 35L, 37L); V+ = 7.5 V to 13.2 V (ADM231L & ADM239L); C1–C4 = 1.0 mF Ceramic. All Specifications T
MIN
to
T
MAX
unless otherwise noted.)
Parameter Min Typ Max Units Test Conditions/Comments
Output Voltage Swing ±5 ±9 Volts All Transmitter Outputs Loaded with 3 kΩ to Ground
V
CC
Power Supply Current 2 3.0 mA No Load, All T
INS
= VCC (Except ADM223)
3.5 6 mA No Load, All T
INS
= GND
0.4 1 mA ADM231L, ADM239L
V+ Power Supply Current 1.5 4 mA No Load, V+ = 12 V ADM231L & ADM239L Only
Shutdown Supply Current 1 5 µA
Input Logic Threshold Low, V
INL
0.8 V TIN, EN, SD, EN, SD
Input Logic Threshold High, V
INH
2.0 V TIN, EN, SD, EN, SD
Logic Pull-Up Current 10 25 µAT
IN
= 0 V
RS-232 Input Voltage Range –30 +30 V
RS-232 Input Threshold Low 0.8 1.2 V
RS-232 Input Threshold High 1.7 2.4 V
RS-232 Input Hysteresis 0.2 0.5 1.0 V
RS-232 Input Resistance 3 5 7 kΩ
TTL/CMOS Output Voltage Low, V
OL
0.4 V
TTL/CMOS Output Voltage High, V
OH
3.5 V I
OUT
= –1.0 mA
TTL/CMOS Output Leakage Current 0.05 ±5 µA
EN = VCC, 0 V ≤ R
OUT
≤ V
CC
Output Enable Time (TEN) 250 ns ADM223, ADM235L, ADM236L, ADM239L, ADM241L
(Figure 25. C
L
= 150 pF)
Output Disable Time (T
DIS
) 50 ns ADM223, ADM235L, ADM236L, ADM239L, ADM241L
(Figure 25. R
L
= 1 kΩ)
Propagation Delay 0.5 µs RS-232 to TTL
Instantaneous Slew Rate
1
25 30 V/µsCL = 10 pF, RL = 3-7 kΩ, TA = +25°C
Transition Region Slew Rate 5 V/ µsR
L
= 3 kΩ, CL = 2500 pF
Measured from +3 V to –3 V or –3 V to +3 V
Output Resistance 300 Ω V
CC
= V+ = V– = 0 V, V
OUT
= ±2 V
RS-232 Output Short Circuit Current ±10 mA
NOTE
1
Sample tested to ensure compliance.
Specifications subject to change without notice.
Thermal Impedance, θ
JA
N-14 DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140°C/W
N-16 DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135°C/W
N-20 DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C/W
N-24 DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C/W
N-24A DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110°C/W
R-16 SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105°C/W
R-20 SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105°C/W
R-24 SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85°C/W
R-28 SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W
RS-28 SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100°C/W
Q-14 Cerdip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105°C/W
Q-16 Cerdip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100°C/W
Q-20 Cerdip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100°C/W
Q-24 Cerdip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C/W
D-24 Ceramic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50°C/W
Operating Temperature Range
Commercial (J Version) . . . . . . . . . . . . . . . . . . . 0 to +70°C
Industrial (A Version) . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . –65°C to + 150°C
Lead Temperature, Soldering . . . . . . . . . . . . . . . . . . +300°C
Vapour Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >2000 V
*This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods of time may affect reliability.
VCC = +5 V 6 10% (ADM223, 31L,
32L, 34L, 36L, 38L, 39L, 41L);
ABSOLUTE MAXIMUM RATINGS*
(TA = 25°C unless otherwise noted)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . .(V
CC
– 0.3 V) to +14 V
V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –14 V
Input Voltages
T
IN
. . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
R
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V
Output Voltages
T
OUT
. . . . . . . . . . . . . . . . . . (V+, + 0.3 V) to (V–, – 0.3 V)
R
OUT
. . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
Short Circuit Duration
T
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous
Power Dissipation
N-14 DIP (Derate 10 mW/°C above +70°C) . . . . . 800 mW
N-16 DIP (Derate 10.5 mW/°C above +70°C) . . . 840 mW
N-20 DIP (Derate 11 mW/°C above +70°C) . . . . . 890 mW
N-24 DIP (Derate 13.5 mW/°C above +70°C) . . 1000 mW
N-24A DIP (Derate 13.5 mW/°C above +70°C) . . 500 mW
R-16 SOIC (Derate 9 mW/°C above +70°C) . . . . . 760 mW
R-20 SOIC (Derate 9.5 mW/°C above +70°C) . . . 800 mW
R-24 SOIC (Derate 12 mW/°C above +70°C) . . . . 850 mW
R-28 SOIC (Derate 12.5 mW/°C above +70°C) . . 900 mW
RS-28 SSOP (Derate 10 mW/°C above +70°C) . . . 900 mW
Q-14 Cerdip (Derate 10 mW/°C above +70°C) . . . 720 mW
Q-16 Cerdip (Derate 10 mW/°C above +70°C) . . . 800 mW
Q-20 Cerdip (Derate 11.2 mW/°C above +70°C) . . . 890 mW
Q-24 Cerdip (Derate 12.5 mW/°C above +70°C) . . 1000 mW
D-24 Ceramic (Derate 20 mW/°C above +70°C) . . 1000 mW
ADM223/ADM230L–ADM241L
–3–
REV. 0
ORDERING GUIDE
Temperature Package Temperature Package Temperature Package
Model Range Option* Model Range Option* Model Range Option*
ADM223 ADM230L ADM231L
ADM223AR –40°C to +85°C R-28 ADM230LJN 0°C to +70°C N-20 ADM231LJN 0°C to +70°C N-14
ADM223ARS –40°C to +85°C RS-28 ADM230LJR 0°C to +70°C R-20 ADM231LJR 0°C to +70°C R-16
ADM230LAN –40°C to +85°C N-20 ADM231LAN –40°C to +85°C N-14
ADM230LAR –40°C to +85°C R-20 ADM231LAR –40°C to +85°C R-16
ADM230LAQ –40°C to +85°C Q-20 ADM231LAQ –40°C to +85°C Q-14
ADM232L ADM233L ADM234L
ADM232LJN 0°C to +70°C N-16 ADM233LJN 0°C to +70°C N-20 ADM234LJN 0°C to +70°C N-16
ADM232LJR 0°C to +70°C R-16 ADM233LAN –40°C to +85°C N-20 ADM234LJR 0°C to +70°C R-16
ADM232LAN –40°C to +85°C N-16 ADM234LAN –40°C to +85°C N-16
ADM232LAR –40°C to +85°C R-16 ADM234LAR –40 °C to +85°C R-16
ADM232LAQ –40°C to +85°C Q-16 ADM234LAQ –40°C to +85°C Q-16
ADM235L ADM236L ADM237L
ADM235LJN 0°C to +70°C N-24A ADM236LJN 0°C to +70°C N-24 ADM237LJN 0°C to +70°C N-24
ADM235LAN –40°C to +85°C N-24A ADM236LJR 0°C to +70°C R-24 ADM237LJR 0°C to +70°C R-24
ADM235LAQ –40°C to +85°C D-24 ADM236LAN –40°C to +85°C N-24 ADM237LAN –40°C to +85°C N-24
ADM236LAR –40°C to +85°C R-24 ADM237LAR –40 °C to +85°C R-24
ADM236LAQ –40°C to +85°C Q-24 ADM237LAQ –40°C to +85°C Q-24
ADM238L ADM239L ADM241L
ADM238LJN 0°C to +70°C N-24 ADM239LJN 0°C to +70°C N-24 ADM241LJR 0°C to +70°C R-28
ADM238LJR 0°C to +70°C R-24 ADM239LJR 0°C to +70°C R-24 ADM241LAR –40°C to +85°C R-28
ADM238LAN –40°C to +85°C N-24 ADM239LAN –40°C to +85°C N-24 ADM241LJRS 0°C to +70°C RS-28
ADM238LAR –40°C to +85°C R-24 ADM239LAR –40°C to +85°C R-24 ADM241LARS –40°C to +85°C RS-28
ADM238LAQ –40°C to +85°C Q-24 ADM239LAQ –40°C to +85°C Q-24
*D = Ceramic DIP; N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC); RS = Small Shrink Outline Package (SSOP).
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 ADM223/ADM230L–ADM241L 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
ADM223/ADM230L–ADM241L
–4–
REV. 0
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
TOP VIEW
(Not to Scale)
ADM230L
T1
IN
T2
IN
T3
IN
T4
IN
T5
IN
T1
OUT
T2
OUT
T3
OUT
T4
OUT
T5
OUT
V+
V–
V
CC
C1+
C1–
C2+
C2–
GND
SD
NC
NC = NO CONNECT
Figure 1. ADM230L DIP/SOIC Pin Configuration
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
12
11
10
8
13
1µF
16V
7
1µF
6.3V
+5V INPUT
V
CC
V+
V–
C1+
C1–
C2+
C2–
T1
IN
NC
GND
ADM230L
SD
RS-232
OUTPUTS
TTL/CMOS
INPUTS
*
1µF
6.3V
1µF
16V
18
T1
OUT
6
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
T2
IN
T3
IN
T4
IN
T5
IN
T2
OUT
T3
OUT
T4
OUT
T5
OUT
T3
19
15
4
5
14
17
16
3
1
2
20
T4
T2
T1
T5
9
1µF
Figure 2. ADM230L Typical Operating Circuit
1
2
3
4
5
6
7
14
13
12
11
10
9
8
TOP VIEW
(Not to Scale)
ADM231L
T1
IN
T2
IN
R2
IN
R1
IN
T1
OU
T
T2
OUT
R2
OUT
R1
OUT
V+
V–
V
CC
C1+
C1–
GND
NC
NC = NO CONNECT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TOP VIEW
(Not to Scale)
ADM231L
T1
IN
R1
IN
T1
OUT
R1
OU
T
V+
V
CC
GND
T2
IN
R2
IN
T2
OUT
R2
OUT
V–
C1+
C1–
NC
Figure 3. ADM231L DIP & SOIC Pin Configurations
SOIC
DIP
+12V TO –12V
VOLTAGE
CONVERTER
2
1
3
14
V+
V–
C+
C–
T1
IN
ADM231L
RS-232
OUTPUTS
TTL/CMOS
INPUTS
*
1µF
16V
T1
OUT
GND
12
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
T2
IN
R1
OUT
R2
OUT
T2
OUT
R1
IN
R2
IN
1µF
16V
R1
6
7
8
9
4
10
11
5
R2
T2
T1
+7.5V TO 13.2V
TTL/CMOS
OUTPUTS
RS-232
INPUTS
**
13
+5V INPUT
V
CC
1µF
Figure 4. ADM231L Typical Operating Circuit (DIP Pinout)
ADM223/ADM230L–ADM241L
–5–
REV. 0
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
1µF
16V
1µF
6.3V
+5V INPUT
V
CC
V+
V–
C1+
C1–
C2+
C2–
ADM232L
1µF
6.3V
1µF
16V
6
GND
15
4
5
3
1
2
1µF
6.3V
T1
IN
RS-232
OUTPUTS
TTL/CMOS
INPUTS
*
T1
OUT
T2
IN
R1
OUT
R2
OUT
T2
OUT
R1
IN
R2
IN
R1
R2
T2
T1
TTL/CMOS
OUTPUTS
RS-232
INPUTS
**
13
10
7
11
8
14
9
12
16
Figure 6. ADM232L Typical Operating Circuit
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
+5V INPUT
V
CC
V+
V–
C1+
C1–
C2+
C2–
GND
ADM233L
7
T1
IN
RS-232
OUTPUTS
TTL/CMOS
INPUTS
*
T1
OUT
T2
IN
R1
OUT
R2
OUT
T2
OUT
R1
IN
R2
IN
R1
R2
T2
T1
TTL/CMOS
OUTPUTS
RS-232
INPUTS
**
4
1
18
2
19
5
20
3
8
13
12
17
14
11
15
10
16
V–
C2–
C2+
9
6
GND
DO NOT MAKE
CONNECTIONS TO
THESE PINS
INTERNAL
–10V POWER
SUPPLY
INTERNAL
+10V POWER
SUPPLY
Figure 8. ADM233L Typical Operating Circuit
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
TOP VIEW
(Not to Scale)
ADM233L
R1
IN
T2
IN
R2
IN
T1
OUT
T2
OUT
R1
OUT
V+
V–
V
CC
C1+
C2–
C2+
C1–
GND
GND C2+
C2–
R2
OU
T
V–
T1
IN
Figure 7. ADM233L DIP Pin Configuration
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TOP VIEW
(Not to Scale)
ADM232L
T1
IN
R1
IN
T1
OUT
R1
OUT
V+
V
CC
GND
T2
IN
R2
IN
T2
OUT
R2
OU
T
V–
C1+
C1–
C2–
C2+
Figure 5. ADM232L DIP/SOIC Pin Configuration
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