Analog Devices ADM241LARS, ADM241LAR, ADM239LJR, ADM239LJN, ADM239LAR Datasheet

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.

a

5 V Powered

CMOS RS-232 Drivers/Receivers

ADM223/ADM230L–ADM241L

ADM232L TYPICAL OPERATING CIRCUIT

ADM232L

1␮F

6.3V

1␮F
16V

C1+

C1–

C2–

C2+

T1

IN

T1

T1

OUT

T2

IN

T2

T2

OUT

TTL/CMOS

INPUTS*

RS-232
OUTPUTS

R1

OUT

R1

R1

IN

R2

OUT

R2

IN

TTL/CMOS

OUTPUTS

RS-232
INPUTS**

R2

V–

1␮F
16V

+10V TO –10V

VOLTAGE
INVERTER

1␮F

6.3V

1␮F

6.3V

5V INPUT

V+

V

CC

+5V TO +10V

VOLTAGE
DOUBLER

GND

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/ CMOS INPUT.
** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.

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 and 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 and 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
ⴞ9 V Output Swing with 5 V Supply
Small 1 ␮F Capacitors
Low Power Shutdown ≤1 ␮A
Receivers Active in Shutdown (ADM223)
ⴞ30 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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © Analog Devices, Inc., 2001

REV. B

–2–

ADM223/ADM230L–ADM241L–SPECIFICATIONS

ADM232L, ADM234L, ADM236L, ADM238L, ADM239L, ADM241L); VCC = 5 V ⴞ 5% (ADM230L, ADM233L, ADM235L, ADM237L); V+ = 7.5 V to

13.2 V (ADM231L and ADM239L); C1–C4 = 1.0 ␮F Ceramic. All Specifications T

MIN

to T

MAX

unless otherwise noted.)

Parameter Min Typ Max Unit Test Conditions/Comments

Output Voltage Swing ± 5 ± 9 Volts All Transmitter Outputs Loaded with 3 kΩ to Ground
V

CC

Power Supply Current 2.5 6.0 mA No Load, (ADM232L only)

3.5 13 mA No Load
V+ Power Supply Current 1.5 4 mA No Load, V+ = 12 V ADM231L and ADM239L Only
Shutdown Supply Current 1 10 µA
Input Logic Threshold Low, V

INL

0.8 V TIN, EN, SD, EN, SD

Input Logic Threshold High, V

INH

2.4 V TIN, EN, SD, EN, SD

Logic Pull-Up Current 12 25 µAT

IN

= 0 V

RS-232 Input Voltage Range

1

–30 +30 V
RS-232 Input Threshold Low 0.8 1.2 V
RS-232 Input Threshold High 1.6 2.4 V
RS-232 Input Hysteresis 0.25 V
RS-232 Input Resistance 3 5 7 kΩ T

A

= 0°C to 85°C

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 ± 10 µA EN = V

CC

, 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 0.3 µs RS-232 to TTL
Transition Region Slew Rate 8 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

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

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

*This is a stress rating only; 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 ⴞ 10% (ADM223, ADM231L,

NOTES

1

Guaranteed by design.

Specifications subject to change without notice.

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. B

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. B

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

DIP

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

OUT

T2

OUT

R2

OUT

R1

OUT

V+

V–

V

CC

C1+

C1–

GND

SOIC

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

OUT

V+

V

CC

GND

T2

IN

R2

IN

T2

OUT

R2

OUT

V–

C1+

C1–

NC

Figure 3. ADM231L DIP and SOIC Pin Configurations

ADM230L

1␮F

6.3V

1␮F
16V

C1+

C1–

C2–

C2+

T1

IN

T1

T1

OUT

T2

IN

T2

T2

OUT

TTL/CMOS

INPUTS*

RS-232
OUTPUTS

T3

OUT

T4

OUT

V–

1␮F

16V

+10V TO –10V

VOLTAGE

INVERTER

1␮F

6.3V

1␮F

6.3V

5V INPUT

V+

V

CC

+5V TO +10V

VOLTAGE
DOUBLER

GND

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/ CMOS INPUT.

T5

OUT

T3

T4

T5

NC

SD

T3

IN

T4

IN

T5

IN

Figure 2. ADM230L Typical Operating Circuit

ADM231L

1␮F
16V

C1+

C1–

T1

IN

T1

T1

OUT

T2

IN

T2

T2

OUT

TTL/CMOS

INPUTS*

RS-232
OUTPUTS

R1

OUT

R1

R1

IN

R2

OUT

R2

IN

TTL/CMOS

OUTPUTS

RS-232
INPUTS**

R2

V–

1␮F

16V

+12V TO –12V

VOLTAGE

INVERTER

V+

GND

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/ CMOS INPUT.
** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.

7.5V TO 13.2V

V

CC

1␮F

5V INPUT

Figure 4. ADM231L Typical Operating Circuit (DIP Pinout)

ADM223/ADM230L–ADM241L

–5–

REV. B

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

OUT

V–

C1+

C1–

C2–

C2+

Figure 5. ADM232L DIP/SOIC Pin Configuration

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

OUT

V–

T1

IN

Figure 7. ADM233L DIP Pin Configuration

ADM232L

1␮F

6.3V

1␮F
16V

C1+

C1–

C2–

C2+

T1

IN

T1

T1

OUT

T2

IN

T2

T2

OUT

TTL/CMOS

INPUTS*

RS-232
OUTPUTS

R1

OUT

R1

R1

IN

R2

OUT

R2

IN

TTL/CMOS

OUTPUTS

RS-232
INPUTS**

R2

V–

1␮F
16V

+10V TO –10V

VOLTAGE
INVERTER

1␮F

6.3V

1␮F

6.3V

5V INPUT

V+

V

CC

+5V TO +10V

VOLTAGE
DOUBLER

GND

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/ CMOS INPUT.
** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.

Figure 6. ADM232L Typical Operating Circuit

ADM233L

C1+

C1–

V–

V–

T1

IN

T1

T1

OUT

T2

IN

T2

T2

OUT

TTL/CMOS

INPUTS*

RS-232
OUTPUTS

R1

OUT

R1

R1

IN

R2

OUT

R2

IN

TTL/CMOS

OUTPUTS

RS-232
INPUTS**

R2

C2–

C2+

V

CC

GND

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/ CMOS INPUT.
** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.

5V INPUT

GND

INTERNAL

–10V POWER

SUPPLY

INTERNAL

+10V POWER

SUPPLY

V+

C2+

C2–

DO NOT MAKE

CONNECTIONS TO

THESE PINS

Figure 8. ADM233L Typical Operating Circuit