ANALOG DEVICES ADG3231 Service Manual
1.65 V to 3.6 V, Single-Channel Level
V
V
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FEATURES
Operates from 1.65 V to 3.6 V supply rails
Unidirectional signal path
Up/down level translation
Ultracompact 6-lead SOT-66 and SOT-23 packages
Output short-circuit protection
LVTTL-/CMOS-compatible inputs
APPLICATIONS
Level translation in
PDAs
Handsets
MP3 players
GENERAL DESCRIPTION
The ADG32311 is a single-channel level translator designed on a
submicron process that is guaranteed to operate over the 1.65 V
to 3.6 V supply range. The device can be used in applications
requiring communication between digital devices operating
from multiple supply voltages. The logic levels on each side of
the device are set by the two supply voltages, V
V
for Y. The signal path is unidirectional, meaning data can
CC2
flow only from A to Y.
The ADG3231 can operate with any combination of V
and V
allowing the part to perform either up (V
(V
supply voltages within the 1.65 V to 3.6 V range,
CC2
CC1
> V
CC1
) level translation. The output stage is protected
CC2
against current overload, which can occur when the Y pin is
accidentally shorted to the V
or GND rails.
CC2
CC1
< V
for A and
CC1
) or down
CC2
Translator in SOT-66 Package
ADG3231
FUNCTIONAL BLOCK DIAGRAM
CC1
A
The ADG3231 is available in ultracompact packages, the
T-66 (1.65 mm × 1.66 mm × 0.57 mm) and the SOT-23
SO
(2.8 mm × 2.9 mm × 1.3 mm), making the part ideal for
applications where space is critical.
PRODUCT HIGHLIGHTS
1. Up/down level translation.
2. Guaranteed to operate with any supply combination within
e 1.65 V to 3.6 V range.
th
3. Output short-circuit protection.
4. Available in ultracompact SOT-66 and SOT-23 packages.
GND
Figure 1.
CC2
Y
03298-001
1
Patent pending.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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 www.analog.com
Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved.
ADG3231
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TABLE OF CONTENTS
Features.............................................................................................. 1
Absolute Maximum Ratings ............................................................4
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
REVISION HISTORY
5/06—Rev. A to Rev. B
Deleted Figure 11 and Figure 12..................................................... 7
Changes to Ordering Guide.......................................................... 10
12/04—Rev. 0 to Rev. A
pdated Format..................................................................Universal
U
Added SOT-66 Package .....................................................Universal
Change to Data Sheet Title.............................................................. 1
Changes to Features, Applications, General Description
and Product Highlights Sections.................................................... 1
Added Patent Information .............................................................. 1
ESD Caution...................................................................................4
Pin Configurations and Function Descriptions............................5
Typical Performance Characteristics..............................................6
Theory of Operation .........................................................................9
Outline Dimensions....................................................................... 10
Ordering Guide .......................................................................... 10
Changes to Figure 1...........................................................................1
Changes to Table 1.............................................................................3
Changes to Figure 2 and Figure 3....................................................3
Deleted TPC 1 to TPC 6 ...................................................................6
Changes to Figure 13 through Figure 20........................................7
Changes to Theory of Operation Section.......................................9
Updated Outline Dimensions....................................................... 10
Changes to Ordering Guide.......................................................... 10
5/03—Revision 0: Initial Version
Rev. B | Page 2 of 12
ADG3231
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SPECIFICATIONS
V
= V
CC1
= 1.65 V to 3.6 V, GND = 0 V. All specifications T
CC2
−40°C to +85°C.
Table 1.
Parameter Symbol Conditions Min Typ1Max Unit
LOGIC INPUTS/OUTPUTS
Input High Voltage
V
V
Input Low Voltage
V
V
Output High Voltage VOH I
I
I
I
I
I
Output Low Voltage VOL I
I
I
I
I
I
SWITCHING CHARACTERISTICS
Propagation Delay, tPD A to Y t
Propagation Delay, tPD A to Y t
Propagation Delay, tPD A to Y t
2
2
VIH V
VIL V
2
, t
3.3 V ± 0.3 V, CL = 30 pF, see Figure 2 4 6.5 ns
PHL
PLH
, t
2.5 V ± 0.2 V, CL = 30 pF, see Figure 2 4.5 6.5 ns
PHL
PLH
, t
1.8 V ± 0.15 V, CL = 30 pF, see Figure 2 6.5 10.25 ns
PHL
PLH
= 3.0 V to 3.6 V 1.35 V
CC1
= 2.3 V to 2.7 V 1.35 V
CC1
= 1.65 V to 1.95 V 0.65 V
CC1
= 3.0 V to 3.6 V 0.8 V
CC1
= 2.3 V to 2.7 V 0.7 V
CC1
= 1.65 V to 1.95 V 0.35 V
CC1
= –100 μA, V
OH
= –100 μA, V
OH
= –100 μA, V
OH
= −4 mA, V
OH
= −4 mA, V
OH
= −8 mA, V
OH
= 100 μA, V
OL
= 100 μA, V
OL
= 100 μA, V
OL
= 4 mA, V
OL
= 4 mA, V
OL
= 8 mA, V
OL
Input Leakage Current II 0 ≤ VIN ≤ 3.6 V ±1 μA
Output Leakage Current IO 0 ≤ VIN ≤ 3.6 V ±1 μA
POWER REQUIREMENTS
Power Supply Voltages V
V
Quiescent Power Supply Current I
I
1
All typical values are at V
2
Guaranteed by design, not subject to production test.
= V
, TA = 25°C, unless otherwise noted.
CC1
CC2
1.65 3.6 V
CC1
1.65 3.6 V
CC2
Digital inputs = 0 V or V
CC1
Digital inputs = 0 V or V
CC2
MIN
to T
, unless otherwise noted. Temperature range for the B version is
MAX
V
CC1
= 3.0 V to 3.6 V 2.4 V
CC2
= 2.3 V to 2.7 V 2.0 V
CC2
= 1.65 V to 1.95 V V
CC2
= 2.3 V to 2.7 V 2.0 V
CC2
= 1.65 V to 1.95 V V
CC2
= 3.0 V to 3.6 V 2.4 V
CC2
= 3.0 V to 3.6 V 0.4 V
CC2
= 2.3 V to 2.7 V 0.4 V
CC2
= 1.65 V to 1.95 V 0.45 V
CC2
= 2.3 V to 2.7 V 0.4 V
CC2
= 1.65 V to 1.95 V 0.45 V
CC2
= 3.0 V to 3.6 V 0.4 V
CC2
2 μA
CC1
2 μA
CC2
− 0.45 V
CC2
− 0.45 V
CC2
V
CC1
INPUT
t
PLH
OUTPUT
Figure 2. Timing Diagram
Rev. B | Page 3 of 12
CC1
50%
t
PHL
0V
V
50%
0V
CC2
03298-020
ADG3231
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ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 2.
Parameter Rating
VCC to GND
Input Voltage for A
DC Output Current 25 mA
Operating Temperature Range
Industrial (B Version)
Storage Temperature Range
Junction Temperature 150°C
θJA Thermal Impedance
6-Lead SOT-23 229°C/W
6-Lead SOT-66 191°C/W (4-layer board)
Lead Temperature, Soldering (10 sec) 300°C
IR Reflow, Peak Temperature (<20 sec) 235°C
−0.3 V to +4.6 V
−0.3 V to V
−40°C to +85°C
−65°C to +150°C
+ 0.3 V
CC1
Stresses above those listed under Absolute Maximum Ratings
ma
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Only one absolute maximum rating may be applied at any one
tim
y cause permanent damage to the device. This is a stress
e.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. B | Page 4 of 12
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