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ADM3312EARU-REEL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
15 kV ESD Protected, 2.7 V to 3.6 V Serial
Port Transceivers with Green Idle
Data Sheet
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
1
Rev. J Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2002–2015 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
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
APPLICATIONS
Mobile phone handsets/data cables
Laptop and notebook computers
Printers
Peripherals
Modems
PDAs/Hand-Held Devices/Palmtop Computers
FUNCTIONAL BLOCK DIAGRAMS
V
CC
R1
OUT
T5
I
N
T4
IN
T1
IN
T1
OUT
T3
IN
T2
IN
ADM3307E
SD
V+
C1+
C1–
C2–
V–
C3+
V
CC
GND
C2
C3–
C2+
C1
0.1µF
0.1µF
R2
OUT
R3
OUT
T2
OUT
T3
OU
T
T4
OUT
T
5
OUT
R1
IN
R2
IN
R3
IN
0.1µF
CERAMIC
10µF
T
ANTALUM
+
C4
0.1µF
SHUTDOWN
INPUT
ENABLE
INPUT
CMOS
INPU
TS
1
CMOS
OUTPUTS
EN
VOLTAGE
TRIPLER/
INVERTER
+3V TO ±9V
C3
0.1µF
C5
0.1µF
EIA
/TI
A-232
O
UTP
UTS
EI
A/T
IA-
232
I
NPU
TS
2
T1
T
3
T2
T5
T
4
R3
R1
R2
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
02915-001
Figure 1. ADM3307E Functional Block Diagram
V
CC
T1
IN
T
1
O
UT
T3
IN
T2
IN
ADM3310
E/
ADM3311E
C1+
V+
C3–
C2–
V
CC
C1–
GND
C2+
SD
V–
C3+
C
1
0.1µF
T
2
OUT
T3
OUT
0.1µF
CE
RAMIC
10µF
TANTA
LUM
+
C4
0.1µF
C2
0.1
µF
ENABLE
IN
PUT
SHU
TDOWN
INPUT
C
MOS
I
NPUTS
1
CMOS
O
UTPUTS
EN
VOLTAGE
TRIPLER/
IN
VERTER
+3V TO ±9V
C3
0.1µF
C5
0.
1µF
E
IA/
TIA-
232
OUT
PUTS
EIA/TIA-232
INPUTS
2
R1
O
UT
R1
IN
R1
R3
OUT
R3
I
N
R3
R2
OUT
R2
IN
R2
R5
OUT
R5
IN
R5
R4
OUT
R4
IN
R4
T3
T1
T
2
1
INTERNAL
400kΩ
PULL-UP RES
ISTOR ON EACH CMOS INPUT
.
2
INTERNAL 5kΩ
PULL-D
OWN RESIS
TOR ON EACH
RS-
232 INPUT.
02915-002
V
CC
T1
IN
T
1
OU
T
T3
IN
T2
IN
ADM3312E/
ADM3315E
C1+
V+
C3–
C2–
V
CC
C1–
GND
C2+
SD
V–
C3+
C1
0.1
µF
T2
OUT
T3
OU
T
0.1µ
F
CE
RAMI
C
10µF
TANTALUM
+
C4
0.1µF
C
2
0.1µF
ENAB
LE
IN
PUT
SHUTD
OWN
INPUT
CMOS
I
NPUTS
1
EN
VO
LTAG
E
TR
IPLE
R/
I
NVER
TER
+3
V TO
±9V
C
3
0
.1µF
C
5
0.
1µF
CMOS
OU
TPUTS
EIA/
TIA-232
OUTPUT
S
EI
A/TIA-
232
INPUT
S
2
R1
OUT
R1
I
N
R3
OUT
R3
IN
R2
OUT
R2
IN
R
1
R3
R2
T3
T1
T2
1
IN
TERNAL 400kΩ
PULL-UP RESISTOR
ON EACH CMOS INPUT
.
2
INTERNA
L 5kΩ (22kΩ FOR ADM
3315E) PULL-DOWN R
ESISTOR O
N
EACH RS-232 INP
UT.
02915-003
Figure 2. ADM3310E/ADM3311E Functional Block Diagram Figure 3. ADM3312E/ADM3315E Functional Block Diagram
1
Protected by U.S. Patent No. 5,606,491.
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E Data Sheet
Rev. J | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagrams ............................................................. 1
Revision History ............................................................................... 2
General Description ......................................................................... 3
Specifications ..................................................................................... 4
Absolute Maximum Ratings ............................................................ 6
ESD Caution .................................................................................. 6
Product Selection Guide .................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 10
Circuit Description......................................................................... 13
Enable and Shutdown ................................................................ 15
Layout and Supply Decoupling ................................................ 15
ESD/EFT Transient Protection Scheme .................................. 15
ESD Testing (IEC 1000-4-2) ..................................................... 16
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 20
Automotive Products ................................................................. 20
REVISION HISTORY
6/15—Rev. I to Rev. J
Changed ADM33xxE to ADM3307E/ADM3310E/ADM3311E/
ADM3312E/ADM3315E .............................................. Throughout
Changes to ESD Testing (IEC 1000-4-2) Section ....................... 16
Changes to Figure 34 ...................................................................... 17
Changes to Ordering Guide .......................................................... 20
3/13—Rev. H to Rev. I
Changed CP-32-2 Package to CP-32-7 Package, Throughout .... 1
Changes to Figure 4, Figure 6, Figure 8 ......................................... 8
Changes to Figure 25 ...................................................................... 13
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 20
Added Automotive Products Section........................................... 20
1/06—Rev. G to Re v. H
Updated Formatting ................................................................. Universal
Updated Outline Dimensions .............................................................. 18
Changes to Ordering Guide ................................................................. 20
4/04—Rev. F to Re v. G
Changes to Ordering Guide ................................................................... 5
Updated Outline Dimensions .............................................................. 15
8/02—Rev. E to Re v. F
ADM3307E (REV. 0), ADM3311E (REV. E), and ADM3312E
( R EV. A) Data Sheets Merged into REV. G of ADM33xxE Universal
ADM3310E (REV. PrA Now Prelims) and ADM3315E
(REV. PrA) Added .................................................................... Universal
Edits to Features ....................................................................................... 1
Edits to Applications ............................................................................... 1
Edits to General Description .................................................................. 1
Edits to Functional Block Diagrams ..................................................... 2
Edits to Specifications ...............................................................................
Edits to Absolute Maximum Ratings .................................................... 4
ADM33xx Product Selection Guide Added ......................................... 5
Added ADM3307E, ADM3310E, ADM3312E, and
ADM3315E Pin Configurations ............................................................ 6
Edits to Pin Function Descriptions ....................................................... 7
Added ADM3307E, ADM3310E, ADM3312E, and
ADM3315E Truth Tables ....................................................................... 7
Edits to TPCs 1–14 .................................................................................. 8
TPCs 15–18 Deleted .............................................................................. 10
Edits to Circuit Description Section ................................................... 11
Edits to Charge Pump DC-to-DC Voltage Converter Section ........ 11
Edits to How Does It Work Section .................................................... 11
Edits to Green Idle vs. Shutdown Section .......................................... 12
Edits to Doesn’t It Increase Supply Voltage Ripple? Section ............ 12
Edits to What About Electromagnetic Compatibility? Section ....... 12
Edits to Transmitter (Driver) Section ................................................. 12
Edits to Receiver Section ...................................................................... 12
Edits to Enable and Shutdown Section ............................................... 12
Edits to High Baud Rate Section.......................................................... 13
Edits to ESD/EFT Transient Protection Scheme ............................... 13
Added Figures 8a and 8b and Renumbered the Figures
that Followed .......................................................................................... 13
Edits to ESD Testing (IEC 1000-4-2) Section .................................... 14
Edits to Figure 9 ..................................................................................... 14
Deleted Table II and Table III and replaced them with Table V ..... 14
Added RU-24 Package Outline Updated CP-32, RS-28
and RU-28 ............................................................................................... 15
Data Sheet ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
Rev. J | Page 3 of 20
GENERAL DESCRIPTION
The ADM3307E/ADM3310E/ADM3311E/ADM3312E/
ADM3315E line of driver/receiver products is designed to fully
meet the EIA-232 standard while operating with a single 2.7 V
to 3.6 V power supply. The devices feature an on-board charge
pump dc-to-dc converter, eliminating the need for dual power
supplies. This dc-to-dc converter contains a voltage tripler and a
voltage inverter that internally generates positive and negative
supplies from the input 3 V power supply. The dc-to-dc
converter operates in Green Idle™ mode, whereby the charge
pump oscillator is gated on and off to maintain the output
voltage at ±7.25 V under varying load conditions. This
minimizes the power consumption and makes these products
ideal for battery-powered portable devices.
The ADM3307E/ADM3310E/ADM3311E/ADM3312E/
ADM3315E devices are suitable for operation in harsh electrical
environments and contain ESD protection up to ±15 kV on
their RS-232 lines (ADM3310E, ADM3311E, ADM3312E, and
ADM3315E). The ADM3307E
contains ESD protection up to
±15 kV on all I/O lines (CMOS, RS-232,
EN
, and SD).
A shutdown facility that reduces the power consumption to 66 nW
is also provided. While in shutdown, one receiver remains active
(two receivers active with ADM3310E), thereby allowing monitor-
ing of peripheral devices. This feature allows the device to be shut
down until a peripheral device begins communication.
The active receiver can alert the processor, which can then take
the ADM3307E/ADM3310E/ADM3311E/ADM3312E/
ADM3315E device out of the shutdown mode.
The ADM3307E contains five drivers and three receivers and is
intended for mobile phone data lump cables and portable
computing applications.
The ADM3311E contains three drivers and five receivers and is
intended for serial port applications on notebook/laptop
computers.
The ADM3310E is a low current version of the ADM3311E.
This device also allows two receivers to be active in shutdown
mode.
The ADM3312E contains three drivers and three receivers and
is intended for serial port applications, PDAs, mobile phone
data lump cables, and other hand-held devices.
The ADM3315E is a low current version of the ADM3312E,
with a 22 kΩ receiver input resistance that reduces the drive
requirements of the DTE. Its main applications are PDAs,
palmtop computers, and mobile phone data lump cables.
The ADM3307E/ADM3310E/ADM3311E/ADM3312E/
ADM3315E devices are fabricated using CMOS technology for
minimal power consumption. All parts feature a high level of
overvoltage protection and latch-up immunity.
All ADM3307E/ADM3310E/ADM3311E/ADM3312E/
ADM3315E devices are available in a 32-lead 5 mm × 5 mm
LFCSP_WQ and in a TSSOP (ADM3307E, ADM3310E, and
ADM3311E in a 28-lead TSSOP; ADM3312E and ADM3315E
in a 24-lead TSSOP). The ADM3311E also comes in a 28-lead
SSOP.
The ADM3307E/ADM3310E/ADM3311E/ADM3312E/
ADM3315E devices are ruggedized RS-232 line
drivers/receivers that operate from a single supply of 2.7 V to
3.6 V. Step-up voltage converters coupled with level shifting
transmitters and receivers allow RS-232 levels to be developed
while operating from a single supply. Features include low
power consumption, Green Idle operation, high transmission
rates, and compatibility with the EU directive on electromag-
netic compatibility. This EM compatibility directive includes
protection against radiated and conducted interference,
including high levels of electrostatic discharge.
All RS-232 (and CMOS, SD, and
EN
for ADM3307E) inputs and
outputs are protected against electrostatic discharges (up to
±15 kV). This ensures compliance with IEC 1000-4-2
requirements.
These devices are ideally suited for operation in electrically
harsh environments or where RS-232 cables are frequently
being plugged/unplugged. They are also immune to high RF
field strengths without special shielding precautions.
Emissions are also controlled to within very strict limits. CMOS
technology is used to keep the power dissipation to an absolute
minimum, allowing maximum battery life in portable
applications.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

ADM3312EARU-REEL7

Mfr. #:
Buy ADM3312EARU-REEL7
Manufacturer:
Analog Devices Inc.
Description:
RS-232 Interface IC 15kV ESD, +2.7V TO 3.6V S/P TRANS I.C.
Lifecycle:
New from this manufacturer.
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