ADM3311 AD [Analog Devices], ADM3311 Datasheet - Page 3

• Manufacturer Part Number: ADM3311
• Manufacturer: AD [Analog Devices]

SD
0
0
1
1
Mnemonic
V
V+
V–
GND
C1+, C1–
C2+, C2–
C3+, C3–
T
T
R
R
EN
SD
Model
ADM3311EARS-Reel 2.5
ADM3311EARU-Reel 2.5
CC
IN
OUT
IN
OUT
EN
0
1
0
1
Power Supply Input +2.7 V to +3.6 V. Requires capacitor of 1 µF or greater to GND.
Internally generated positive supply (+7.25 V nominal) Capacitor C4 is connected between V
Internally generated negative supply (–7.25 V nominal) Capacitor C5 is connected between V– and GND.
Ground Pin. Must be connected to 0 V.
External capacitor 1 is connected between these pins. A 0.1 µF capacitor is recommended, but larger capacitors
up to 1 µF may be used.
External capacitor 2 is connected between these pins. A 0.1 µF capacitor is recommended, but larger capacitors
up to 1 µF may be used.
External capacitor 3 is connected between these pins. A 0.1 µF capacitor is recommended, but larger capacitors
up to 1 µF may be used.
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 kΩ pull-up resistor to V
is connected on each input.
Transmitter (Driver) Outputs, (typically ± 6.4 V).
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.
Receiver Outputs. These are TTL/CMOS levels.
Receiver Enable. A high level three-states all the receiver outputs.
Shutdown Control. A high level will disable the charge pump and reduce the quiescent current to 20 nA.
All transmitters and receivers R1–R4 are disabled. Receiver R5 remains active in shutdown.
Status
Normal
Operation
Receivers Enabled
Disabled
Shutdown Disabled
Shutdown Disabled
Function
Table I. Truth Table
T
Enabled
OUT
1–3
Temperature
Range
–40°C to +85°C
–40°C to +85°C
R
Enabled
Disabled
Disabled
Disabled
OUT
1–4
PIN FUNCTION DESCRIPTIONS
R
Enabled
Disabled
Enabled
Disabled
OUT
ORDERING GUIDE
5
Package
Descriptions
28-Lead Shrink Small Outline (SSOP)
28-Lead Thin Shrink Small Outline (TSSOP)
R1
R2
R3
R4
R5
PIN CONFIGURATION
T1
T2
T3
C2+
C2–
C1+
V
OUT
OUT
OUT
OUT
OUT
V+
EN
CC
IN
IN
IN
10
11
12
13
14
1
2
3
4
5
6
7
8
9
(Not to Scale)
ADM3311E
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
R5
C3+
GND
C3–
V–
C1–
SD
T1
T2
T3
R1
R2
R3
R4
CC
ADM3311E
OUT
OUT
OUT
IN
IN
IN
IN
IN
and V+.
Package
Option
RS-28
RU-28
CC