15 kV ESD Protected, 2.7 V to 3.6 V Serial
Port Transceivers with Green Idle
Rev. J Document Feedback
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C1
T
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
Data Sheet
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E1
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
V
CC
10µF
ANTALUM
ENABLE
INPUT
FUNCTIONAL BLOCK DIAGRAMS
C2
0.1µF
0.1µF
0.1µF
CERAMIC
+
SHUTDOWN
OUTPUTS
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
INPU
INPUT
CMOS
TS
CMOS
0.1µF
1
C4
T1
IN
T2
IN
T3
IN
T4
IN
T5
N
I
R1
OUT
R2
OUT
R3
OUT
Figure 1. ADM3307E Functional Block Diagram
VOLTAGE
V+
TRIPLER/
V
INVERTER
CC
+3V TO ±9V
C2–
C1–
EN
SD
T1
T2
R1
ADM3307E
C2+
C3+
C1+
C3–
V–
GND
T
3
T
4
T5
R2
R3
C3
0.1µF
C5
0.1µF
T1
OUT
T2
OUT
A-232
/TI
EIA
T3
OU
T
O
UTP
EI
I
NPU
A/T
TS
IA-
UTS
232
2
02915-001
T4
OUT
T
5
OUT
R1
IN
R2
IN
R3
IN
1
Protected by U.S. Patent No. 5,606,491.
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 Devi ces.
Figure 2. ADM3310E/ADM3311E Functional Block Diagram Figure 3. ADM3312E/ADM3315E Functional Block Diagram
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.
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Typical Performance Characteristics ........................................... 10
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
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 Rev. H
Updated Formatting ................................................................. Universal
Updated Outline Dimensions .............................................................. 18
Changes to Ordering Guide ................................................................. 20
4/04—Rev. F to Rev. G
Changes to Ordering Guide ................................................................... 5
Updated Outline Dimensions .............................................................. 15
8/02—Rev. E to Rev. 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
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
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
Rev. J | Page 2 of 20
Data Sheet ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
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
±15 kV on all I/O lines (CMOS, RS-232,
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 monitoring 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.
contains ESD protection up to
EN
, and SD).
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 electromagnetic 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.
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.
Rev. J | Page 3 of 20
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.
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E Data Sheet
ADM3310E, ADM3315E
0.35
0.85
mA
VCC = 2.7 V to 3.6 V; no load
OUT
OUT
OUT
OUT
OUT
SPECIFICATIONS
VCC = 2.7 V to 3.6 V, C1 to C5 = 0.1 µF. All specifications T
Table 1
Parameter Min Typ Max Unit Test Conditions/Comments
Operating Voltage Range 2.7 3.3 3.6 V
VCC Power Supply Current
ADM3307E 0.75 1.5 mA VCC = 3.0 V to 3.6 V; no load
0.75 4.5 mA VCC = 2.7 V to 3.6 V; no load
ADM3311E, ADM3312E 0.45 1 mA No load; VCC = 3.0 V to 3.6 V; TA = 0°C to 85°C
0.45 4.5 mA No load; VCC = 2.7 V to 3.6 V; TA = − 40°C to +85°C
MIN
to T
, unless otherwise noted.
MAX
ADM3310E, ADM3311E, ADM3312E,
35 mA RL = 3 kΩ to GND on all T
OUTS
ADM3315E
Shutdown Supply Current 0.02 1 µA
Input Pull-Up Current 10 25 µA TIN = GND
Input Leakage Current, SD, EN
Input Logic Threshold Low, V
0.8 V
INL
0.4 V
Input Logic Threshold High, V
2.0 V
INH
CMOS Output Voltage Low, VOL 0.4 V I
CMOS Output Voltage High, VOH VCC − 0.6 V I
0.02 ±1 µA
TIN, EN, SHDN
TIN, EN, SHDN; VCC = 2.7 V
TIN, EN, SHDN
= 1.6 mA
= −200 µA
CMOS Output Leakage Current
ADM3307E 0.04 ±1 µA
ADM3310E, ADM3311E 0.05 ±5 µA
EN
= VCC, 0 V < R
EN
= VCC, 0 V < R
< VCC
< VCC
ADM3312E, ADM3315E
Charge Pump Output Voltage, V+ +7.25 V No load
ADM3307E, ADM3311E, ADM3312E
Charge Pump Output Voltage, V− −7.25 V No load
ADM3307E, ADM3311E, ADM3312E
Charge Pump Output Voltage, V+ +6.5 V No load
ADM3310E, ADM3315E
Charge Pump Output Voltage, V− −6.5 V No load
ADM3310E, ADM3315E
EIA-232 Input Voltage Range −25 +25 V
EIA-232 Input Threshold Low 0.4 1.3 V
EIA-232 Input Threshold High 2.0 2.4 V
EIA-232 Input Hysteresis 0.14 V
EIA-232 Input Resistance
ADM3307E, ADM3310E, ADM3311E,
3 5 7 kΩ
ADM3312E
ADM3315E 14 22 31 kΩ
Output Voltage Swing
ADM3310E, ADM3315E ±5.0 ±5.5 V All transmitter outputs loaded with 3 kΩ to ground
ADM3307E, ADM3311E, ADM3312E ±5.0 ±6.4 V VCC = 3.0 V
±5.5 V VCC = 2.7 V
All transmitter outputs loaded with 3 kΩ to ground
Transmitter Output Resistance 300 Ω VCC = 0 V, V
= ±2 V
RS-232 Output Short-Circuit Current ±15 ±60 mA
Rev. J | Page 4 of 20
Data Sheet ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
PHL
PLH
PHL
PLH
Transition Region Slew Rate
3
18 V/µs
RL = 3 kΩ, CL = 50 pF to 1000 pF1
Parameter Min Typ Max Unit Test Conditions/Comments
Maximum Data Rate
ADM3307E 250 720 kbps RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, VCC = 2.7 V
460 920 kbps RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, VCC = 3.0 V
ADM3310E, ADM3311E, ADM3312E,
ADM3315E
Receiver Propagation Delay, T
, T
0.3 µs CL = 150 pF
0.17 1 µs CL = 150 pF; ADM3307E only
Receiver Output Enable Time, tER 100 ns
Receiver Output Disable Time, tDR 300 ns
Transmitter Propagation Delay, T
, T
500 ns RL = 3 kΩ, CL = 1000 pF
ESD PROTECTION (I/O PINS) ±15 kV Human body model
±15 kV IEC 1000-4-2 air discharge
±8 kV IEC 1000-4-2 contact discharge2
1
Measured at +3 V to −3 V or −3 V to +3 V.
2
Includes CMOS I/O, SD, and EN for ADM3307E.
250 460 kbps RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, VCC = 3.0 V
Rev. J | Page 5 of 20
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E Data Sheet
Output Voltages
OUT
OUT
OUT
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 2
Parameter Rating
VCC −0.3 V to +4 V
V+ (VCC − 0.3 V) to +9 V
V− +0.3 V to −9 V
Input Voltages
TIN −0.3 V to +6 V
RIN ±30 V
T
±15 V
R
−0.3 V to (VCC + 0.3 V )
Short-Circuit Duration
T
Continuous
Thermal Impedance, θJA
LFCSP_WQ (CP-32-7) 32.5°C/W
TSSOP (RU-28) 68.0°C/W
TSSOP (RU-24) 68.0°C/W
SSOP (RS-28) 76.0°C/W
Operating Temperature Range
Industrial (A Version) −40°C to +85°C
Storage Temperature Range −65°C to +150°C
Lead Temperature (Soldering, 10 sec) 300°C
ESD Rating (IEC 1000-4-2 Air)
(RS-232 I/Os)
ESD Rating (IEC 1000-4-2 Contact)
(RS-232 I/Os)
±15 kV
±8 kV
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
ESD CAUTION
Rev. J | Page 6 of 20
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