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ADM3307EARUADIN/a84avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3307EARUADN/a200avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3310EACPADN/a7avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3310EARUADN/a1avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3311EARSADIN/a1500avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3311EARS-REEL7 |ADM3311EARSREEL7ADIN/a283avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3311EARUADN/a2187avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3311EARU-REEL |ADM3311EARUREELADN/a16312avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
ADM3312EARU-REEL7 |ADM3312EARUREEL7ADIN/a144avai15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩


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ADM3307EARU-ADM3310EACP-ADM3310EARU-ADM3311EARS-ADM3311EARS-REEL7-ADM3311EARU-ADM3311EARU-REEL-ADM3312EARU-REEL7
15 kV ESD Protected, 2.7 V to 3.6 V Serial Port Transceivers with Green Idle⑩
REV.G
15 kV ESD Protected, 2.7 V to 3.6 V
Serial Port Transceivers with Green Idle™

*.Patent No. 5,606,491.
FEATURES
Green Idle Power-Saving Mode
Single 2.7 V to 3.6 V Power Supply
Operates with 3 V Logic
0.1 �F to 1 �F Charge Pump Capacitors
Low EMI
Low Power Shutdown: 20 nA
Full RS-232 Compliance
460 kbits/s Data Rate
1 Receiver Active in Shutdown (2 for ADM3310E)
ESD >15 kV IEC 1000-4-2 on RS-232 I/Os (ADM33xxE)
ESD >15 kV IEC 1000-4-2 on CMOS and RS-232 I/Os
(ADM3307E)
APPLICATIONS
Mobile Phone Handsets/Data Cables
Laptop and Notebook Computers
Printers
Peripherals
Modems
PDAs/Hand-Held Devices/Palmtop Computers
GENERAL DESCRIPTION

The ADM33xxE 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 ADM33xxE devices are suitable for operation in harsh elec-
trical environments and contain ESD protection up to ±15kV
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
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 ADM33xxE 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 com-
puting 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 kW 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 ADM33xxE devices are fabricated using CMOS technology
for minimal power consumption. All parts feature a high levelovervoltage protection and latch-up immunity.
All ADM33xxE devices are available in a 32-lead 5 mm ¥ 5 mm
LFCSP package and in a TSSOP package (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 package.
The ADM33xxE 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 ±15kV).
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.
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
FUNCTIONAL BLOCK DIAGRAMS
VCC
10�F
TANTALUM
CMOS
INPUTS1CMOS
OUTPUTS
T5IN
T4IN
T1INT1OUT
T3IN
T2IN
SHUTDOWN
INPUT
ENABLE
INPUT
0.1�F
R2OUT
R3OUT
NOTES
1INTERNAL 400k� PULL-UP RESISTOR ON EACH CMOS INPUT.
2INTERNAL 5k� PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
EIA/TIA-232
OUTPUTS
T2OUT
T3OUT
T4OUT
T5OUT
0.1�F
EIA/TIA-232
INPUTS2
VCC10�F
TANTALUM
CMOS
INPUTS1
R1OUT
EIA/TIA-232
INPUTS2
CMOS
OUTPUTS
T1IN
T3IN
T2IN
INPUT
INPUT
R2OUT
R3OUT
EIA/TIA-232
OUTPUTS
T3OUT
R1IN
R2IN
R3IN
R4IN
R5IN
R4OUT
R5OUT
NOTES
1INTERNAL 400k� PULL-UP RESISTOR ON EACH CMOS INPUT.
2INTERNAL 5k� PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
VCC10�F
TANTALUM
CMOS
INPUTS1
R1OUT
CMOS
OUTPUTS
T1IN
T3IN
T2IN
INPUT
INPUT
R2OUT
R3OUT
EIA/TIA-232
OUTPUTS
T3OUT
R1IN
R2IN
R3IN
NOTES
1INTERNAL 400k� PULL-UP RESISTOR ON EACH CMOS INPUT.
2INTERNAL 5k� (22k� FOR ADM3315E) PULL-DOWN RESISTOR
ON EACH RS-232 INPUT.
EIA/TIA-232
INPUTS2
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
Input Logic Threshold High, VINH
CMOS Output Voltage High, VOH
SPECIFICATIONS(VCC = 2.7 V to 3.6 V, C1–C5 = 0.1 �F. All specifications TMIN to TMAX, unless otherwise noted.)
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
SPECIFICATIONS (continued)
ABSOLUTE MAXIMUM RATINGS*

(TA = 25∞C, unless otherwise noted)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +4 V . . . . . . . . . . . . . . . . . . . . . . . . . . . .(VCC – 0.3 V) to +9 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+0.3 V to –9 V
Input Voltages
TIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +6 V
RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V
Output Voltages
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15 V
ROUT . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
Short Circuit Duration
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous
Thermal Impedance, qJA
CP-32 LFCSP . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.5∞C/W
RU-28 TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.0∞C/W
RU-24 TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.0∞C/W
RS-28 SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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) . . . . . . .±15 kV
ESD Rating (IEC 1000-4-2 Contact) (RS-232 I/Os) . . . .±8 kV
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
Transmitter Output Resistance
ADM3310E, ADM3311E, ADM3312E
Receiver Propagation Delay, TPHL, TPLH
NOTESMeasured at +3 V to –3 V or –3 V to +3 V.Includes CMOS I/O, SD, and EN for ADM3307E.
Specification subject to change without notice.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
ORDERING GUIDE

ADM3307EACP-REEL
ADM3307EACP-REEL7
ADM3310EARU
ADM3310EARU-REEL
ADM3310EARU-REEL7
ADM3310EACP
ADM3310EACP-REEL
ADM3310EACP-REEL7
ADM3311EARS
ADM3311EARS-REEL
ADM3311EARS-REEL7
ADM3311EARZ*
ADM3311EARZ-REEL*
ADM3311EARZ-REEL7*
ADM3311EARU
ADM3311EARU-REEL
ADM3311EARU-REEL7
ADM3311EACP
ADM3312EARU
ADM3312EARU-REEL
ADM3312EARU-REEL7
ADM3312EACP
ADM3312EACP-REEL
ADM3312EACP-REEL7
ADM3315EARU
ADM3315EARU-REEL
ADM3315EARU-REEL7
ADM3315EARUZ*
ADM3315EARUZ-REEL*
ADM3315EARUZ-REEL7*
ADM3315EACP
ADM3315EACP-REEL
*Z = Pb-free part.
PRODUCT SELECTION GUIDE

ADM3310E
ADM3311E
ADM3312E
ADM3315E
*ICC Shutdown is 20 nA typically.
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
PIN CONFIGURATIONS

ADM3307E
ADM3310E/ADM3311E
PIN FUNCTION DESCRIPTIONS
Table I.ADM3307E Truth Table
Table II.ADM3310E Truth Table
Table IV.ADM3312E/ADM3315E Truth Table
Table III.ADM3311 Truth Table
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
TPC 1. Charge Pump V+ Exiting Shutdown

TPC 2. Charge Pump V– Exiting Shutdown

TPC 3. Charge Pump V+, V– vs. Load Current
TPC 4. Transmitter Output vs. Load Capacitance
(VCC = 3.3 V, Data Rate = 460 kbps)

LOAD CAPACITANCE – pF
SLEW RATE – V/

2500200015001000500

TPC 5. Slew Rate vs. Load Capacitance (VCC = 3.3 V)
TPC 6. Supply Current vs. Load Capacitance (RL = 3 kW)
Typical Performance Characteristics
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