15 kV ESD Protected, 2.7 V to 3.6 V Serial
Port Transceivers with Green Idle™
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E1
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
C1
Green Idle power-saving mode
Single 2.7 V to 3.6 V power supply
Operates with 3 V logic
0.1 µF to 1 µF charge pump capacitors
Low EMI
Low power shutdown: 20 nA
Full RS-232 compliance
460 kb/s data rate
One receiver active in shutdown
(ADM3307E/ADM3311E/ADM3312E/ADM3315E)
Two receivers active in shutdown (ADM3310E)
ESD >15 kV IEC 1000-4-2 on RS-232 I/Os
ESD >15 kV IEC 1000-4-2 on CMOS and RS-232 I/Os
(ADM3307E)
C2
0.1µF
0.1µF
0.1µF
VOLTAGE C2+
TRIPLER/
INVERTER
+3V TO ±9V
V+
V
C4
CERAMIC
V
CC
0.1µF
C3+
CC
+
C3
0.1µF
C1+
10µF
TANTALUM
C2–
C1–
EN
C3–
V–
ENABLE
INPUT
C5
0.1µF
SD
GND
SHUTDOWN
INPUT
T1
T2
T3
T1
T2
T1
IN
OUT
T2
T3
T4
IN
OUT
OUT
CMOS
EIA/TIA-232
OUTPUTS
T3
T4
T5
IN
IN
IN
1
INPUTS
T4
T5
OUT
OUT
T5
R1
R1
R2
R3
IN
IN
IN
R1
R2
R3
Qualified for automotive applications
OUT
EIA/TIA-232
CMOS
R2
R3
2
INPUTS
OUT
OUT
OUTPUTS
APPLICATIONS
Mobile phone handsets/data cables
Laptop and notebook computers
Printers
ADM3307E
1
2
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Peripherals
Figure 1. ADM3307E Functional Block Diagram
Modems
PDAs/Hand-Held Devices/Palmtop Computers
C1
C1
0.1µF
0.1µF
C4
0.1µF
C4
0.1µF
C3
0.1µF
C3
0.1µF
VOLTAGE C3+
TRIPLER/
VOLTAGE C3+
TRIPLER/
V+
V+
0.1µF
0.1µF
CERAMIC
C2+
GND
GND
C2+
C2
C2
INVERTER
INVERTER
CERAMIC
V
V
0.1µF
+3V TO ±9V
0.1µF
+3V TO ±9V
CC
CC
C3–
C3–
V
V
CC
CC
+
+
V–
C5
0.1µF
V–
C5
0.1µF
C2–
EN
C2–
EN
10µF
TANTALUM
10µF
TANTALUM
ENABLE
INPUT
ENABLE
INPUT
C1–
C1–
SHUTDOWN
INPUT
SHUTDOWN
INPUT
C1+
C1+
SD
SD
T1
T2
T1
T2
T1
T1
T2
T1
T1
IN
OUT
IN
OUT
CMOS
EIA/TIA-232
OUTPUTS
CMOS
EIA/TIA-232
OUTPUTS
T2
T3
T2
T3
T2
T3
IN
OUT
OUT
IN
OUT
1
1
INPUTS
INPUTS
T3
T3
T3
IN
IN
OUT
R1
R2
R3
R1
R2
R3
R4
R5
R1
R1
IN
IN
IN
IN
IN
IN
IN
IN
R1
R2
R3
R1
R2
R3
R4
R5
OUT
OUT
OUT
OUT
OUT
OUT
CMOS
OUTPUTS
EIA/TIA-232
R2
R2
2
INPUTS
CMOS
OUTPUTS
EIA/TIA-232
R3
R3
2
INPUTS
R4
OUT
OUT
ADM3312E/
ADM3315E
R5
ADM3310E/
ADM3311E
1
2
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
INTERNAL 5kΩ (22kΩ FOR ADM3315E) PULL-DOWN RESISTOR ON
EACH RS-232 INPUT.
1
2
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 2. ADM3310E/ADM3311E Functional Block Diagram
Figure 3. ADM3312E/ADM3315E Functional Block Diagram
1 Protected by U.S. Patent No. 5,606,491.
Rev. I
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