ADM1181A AD [Analog Devices], ADM1181A Datasheet - Page 3

• Manufacturer Part Number: ADM1181A
• Description: EMI/EMC Compliant, +-15 kV ESD Protected, RS-232 Line Drivers/Receivers
• Manufacturer: AD [Analog Devices]

Mnemonic
V
V+
V–
GND
C1+, C1–
C2+, C2–
T
T
R
R
REV. 0
CC
IN
OUT
IN
OUT
OUTPUTS
INPUTS
CMOS
CMOS
NOTE
*
INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT
0.1µF
0.1µF
ADM202E Typical Operating Circuit
R1
R2
10V
10V
PIN FUNCTION DESCRIPTION
T1
T2
OUT
OUT
Function
Power Supply Input: +5 V
Internally Generated Positive Supply
(+9 V nominal).
Internally Generated Negative Supply
(–9 V nominal).
Ground Pin. Must Be Connected to 0 V.
External Capacitor 1 is connected between
these pins. 0.1 F capacitor is recommended
but larger capacitors up to 47 F may be used.
External Capacitor 2 is connected between
these pins. 0.1 F capacitor is recommended
but larger capacitors up to 47 F may be used.
Transmitter (Driver) Inputs. These inputs ac-
cept TTL/CMOS levels.
Transmitter (Driver) Outputs. These are RS-
232 signal levels (typically 9 V).
Receiver Inputs. These inputs accept RS-232
signal levels. An Internal 5 k pull-down resis-
tor to GND is connected on each input.
Receiver Outputs. These are CMOS output
logic levels.
IN
IN
10
11
12
1
3
4
9
5
C1+
C1–
C2+
C2–
GND
15
+5V TO +10V
+10V TO –10V
DOUBLER
VOLTAGE
T2
T1
INVERTER
VOLTAGE
R2
R1
ADM202E
V
V–
CC
V+
16
14
+5V INPUT
13
2
6
7
8
10%.
T1
T2
R1
R2
C4
0.1µF
10V
C3
0.1µF
6.3V
OUT
OUT
IN
IN
EIA/TIA-232
OUTPUTS
EIA/TIA-232
INPUTS
C5
0.1µF
*
–3–
OUTPUTS
INPUTS
CMOS
CMOS
NOTE
*
INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT
ADM1181A Typical Operating Circuit
0.1µF
0.1µF
R1
R2
10V
10V
T1
T2
OUT
OUT
IN
IN
T2
PIN CONNECTIONS
R2
10
11
12
C1+
C1–
C2+
C2–
OUT
1
3
4
9
5
V+
V–
IN
C1+
C2+
C1–
C2–
1
2
3
4
5
6
7
8
NC = NO CONNECT
GND
ADM202E/ADM1181A
ADM1181A
15
(Not to Scale)
+5V TO +10V
+10V TO –10V
ADM202E
DOUBLER
VOLTAGE
T2
TOP VIEW
T1
INVERTER
VOLTAGE
R1
R2
ADM1181A
16
15
14
13
12
11
10
V
9
V–
CC
V+
V
GND
T1
R1
R1
T1
T2
R2
16
14
CC
+5V INPUT
13
2
6
7
8
OUT
IN
IN
IN
OUT
OUT
T1
T2
R1
R2
C4
0.1µF
10V
OUT
OUT
IN
IN
C3
0.1µF
10V
EIA/TIA-232
OUTPUTS
EIA/TIA-232
INPUTS
C5
0.1µF
10V
*