15 kV ESD Protected, 2.7 V to 3.6 V Serial
Port Transceivers with Green Idle™
Data Sheet
FEATURES
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)
Qualified for automotive applications
FUNCTIONAL BLOCK DIAGRAMS
C1
0.1µF
C2
0.1µF
V
CC
0.1µF
CERAMIC
+
10µF
TANTALUM
ENABLE
INPUT
SHUTDOWN
INPUT
T1
IN
T2
IN
CMOS
INPUTS
1
T3
IN
T4
IN
T5
IN
R1
OUT
CMOS
OUTPUTS
R2
OUT
R3
OUT
R1
R2
R3
T1
T2
T3
T4
T5
T1
OUT
T2
OUT
T3
OUT
T4
OUT
T5
OUT
R1
IN
R2
IN
R3
IN
EIA/TIA-232
INPUTS
2
EIA/TIA-232
OUTPUTS
C4
0.1µF
VOLTAGE C2+
TRIPLER/
V
CC
INVERTER C3+
+3V TO ±9V
C1+
C2–
V+
C1–
EN
SD
C3–
V–
GND
C5
0.1µF
C3
0.1µF
APPLICATIONS
Mobile phone handsets/data cables
Laptop and notebook computers
Printers
Peripherals
Modems
PDAs/Hand-Held Devices/Palmtop Computers
C1
0.1µF
C4
0.1µF
0.1µF
CERAMIC
+
10µF
TANTALUM
ENABLE
INPUT
C2
0.1µF
V+
VOLTAGE C3+
TRIPLER/
C2+ INVERTER GND
+3V TO ±9V
C3–
V
CC
C2–
EN
C1+
T1
IN
CMOS
INPUTS
1
T2
IN
T3
IN
R1
OUT
R2
OUT
CMOS
OUTPUTS
R3
OUT
R4
OUT
R5
OUT
R5
R4
R3
R2
T3
R1
T2
T1
V–
C1–
SD
C3
0.1µF
V
CC
ADM3307E
02915-001
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 1. ADM3307E Functional Block Diagram
C1
0.1µF
C4
0.1µF
0.1µF
CERAMIC
+
C2
0.1µF
VOLTAGE C3+
TRIPLER/
C2+ INVERTER GND
+3V TO ±9V
C3–
V
CC
V+
C2–
ENABLE
INPUT
EN
C1+
T1
IN
T1
T2
T3
R1
R2
R3
V–
C1–
SD
C3
0.1µF
V
CC
C5
0.1µF
SHUTDOWN
INPUT
T1
OUT
T2
OUT
T3
OUT
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
EIA/TIA-232
INPUTS
2
EIA/TIA-232
OUTPUTS
10µF
TANTALUM
C5
0.1µF
SHUTDOWN
INPUT
T1
OUT
T2
OUT
T3
OUT
R1
IN
R2
IN
R3
IN
EIA/TIA-232
INPUTS
2
EIA/TIA-232
OUTPUTS
CMOS
INPUTS
1
T2
IN
T3
IN
R1
OUT
CMOS
OUTPUTS
R2
OUT
R3
OUT
ADM3312E/
ADM3315E
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5kΩ (22kΩ FOR ADM3315E) PULL-DOWN RESISTOR ON
02915-002
02915-003
ADM3310E/
ADM3311E
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013 Analog Devices, Inc. All rights reserved.
Rev. I
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