Datasheet

Data Sheet ADM202
Rev. B | Page 5 of 10
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
V+
C1–
C2+
V
CC
GND
T1
OUT
R1
IN
C2–
R1
OUT
V–
T1
IN
T2
OUT
T2
IN
R2
IN
R2
OUT
1
2
3
4
16
15
14
13
5
6
7
12
11
10
8
9
ADM202
TOP VIEW
(Not to Scale)
C1+
00065-002
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1 C1+ External Positive Capacitor 1 Connection. The positive terminal is connected to this pin.
2 V+ Internally Generated Positive Supply (+10 V nominal).
3 C1− External Negative Capacitor 1 Connection. The negative terminal is connected to this pin.
4 C2+ External Positive Capacitor 2 Connection. The positive terminal is connected to this pin.
5 C2− External Negative Capacitor 1 Connection. The negative terminal is connected to this pin.
6 V− Internally Generated Negative Supply (−10 V Nominal).
7, 14 T2
OUT
, T1
OUT
Transmitter (Driver) Outputs. These outputs are RS-232 levels (typically ±10 V).
8, 13 R2
IN
, R1
IN
Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is
connected on each of these inputs.
9, 12 R2
OUT
, R1
OUT
Receiver Outputs. These outputs are TTL/CMOS levels.
10, 11 T2
IN
, T1
IN
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 kΩ pull-up resistor to V
CC
is
connected on each input.
15 GND Ground. This pin must be connected to 0 V.
16 V
CC
Power Supply Input, 5 V ± 10%.