Analog Devices ADG3231 a Datasheet

A

1.65 V to 3.6 V, Single-Channel Level

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 may 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

for Y. The signal path is unidirectional, meaning data may

V

CC2

flow only from A to Y.

for A and

CC1

Translator in SOT-66 Package

ADG3231

FUNCTIONAL BLOCK DIAGRAM

V

CC1

PRODUCT HIGHLIGHTS

1. Up/down level translation.

2. Guaranteed to operate with any supply combination within the 1.65 V to 3.6 V range.

3. Output short-circuit protection.

4. Available in ultracompact SOT-66 and SOT-23 packages.

GND

Figure 1.

V

CC2

Y

03298-001

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

< V

CC2

CC1

) or down

against current overload, which may occur when the Y pin is accidentally shorted to the V

or GND rails.

CC2

The ADG3231 is available in ultracompact packages, the SOT-66 (1.65 mm × 1.66 mm × 0.57 mm) and the SOT-23 (2.8 mm × 2.9 mm × 1.3 mm), making the part ideal for applications where space is critical.

1

Patent pending.

Rev. A

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.

www.analog.com

ADG3231

TABLE OF CONTENTS

Specifications..................................................................................... 3

Typical Performance Characteristics..............................................6

Absolute Maximum Ratings............................................................ 4

ESD Caution.................................................................................. 4

Pin Configurations and Function Descriptions ........................... 5

REVISION HISTORY

12/04—Rev. 0 to Rev. A

Updated Format..................................................................Universal

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

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

Theory of Operation .........................................................................9

Outline Dimensions....................................................................... 10

Ordering Guide .......................................................................... 10

5/03—Revision 0: Initial Version

Rev. A | Page 2 of 12

ADG3231

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 Typ1 Max Unit

LOGIC INPUTS/OUTPUTS

Input High Voltage2 V V V

V

IH

V

IH

V

IH

Input Low Voltage2 V

V

IL

V

IL

V

IL

Output High Voltage VOH I

V

I

V

I

Output Low Voltage VOL I V V I V I SWITCHING CHARACTERISTICS2

Propagation Delay, tPD A to Y t

, t

3.3 V ± 0.3 V, CL = 30 pF, Figure 2 4 6.5 ns

PHL

PLH

, t

2.5 V ± 0.2 V, CL = 30 pF, Figure 2 4.5 6.5 ns

PHL

PLH

, t

1.8 V ± 0.15 V, CL = 30 pF, Figure 2 6.5 10.25 ns

PHL

PLH

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

1.65 3.6 V

CC1

1.65 3.6 V

CC2

Digital inputs = 0 V or V

CC1

Digital inputs = 0 V or V

CC2

1

All typical values are at V

2

Guaranteed by design, not subject to production test.

= V

, TA = 25°C, unless otherwise stated.

CC1

CC2

INPUT

t

PLH

OUTPUT

to T

MIN

CC1

= –100 µA, V

OH

= −4 mA, V

OH

= −8 mA, V

OH

= 100 µA, V

OH

= 4 mA, V

OH

= 8 mA, V

OH

, unless otherwise noted. Temperature range for the B version is

MAX

= 3.0 V to 3.6 V 1.35 V = 2.3 V to 2.7 V 1.35 V = 1.65 V to 1.95 V 0.65 V

V

CC1

= 3.0 V to 3.6 V 0.8 V = 2.3 V to 2.7 V 0.7 V = 1.65 V to 1.95 V 0.35 V

= 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

V

CC1

50%

t

PHL

0V V

50% 0V

CC2

03298-020

− 0.45 V

CC2

− 0.45 V

CC2

Figure 2. Timing Diagram

V

CC1

Rev. A | Page 3 of 12

ADG3231

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 6-Lead SOT-23

θJA Thermal Impedance 229°C/W

6-Lead SOT-66

θJA Thermal Impedance 191°C/W (4-layer board)

Lead Temperature, Soldering

(10 seconds)

IR Reflow, Peak Temperature

(<20 seconds)

−0.3 V to +4.6 V

−0.3 V to V

−40°C to +85°C

−65°C to +150°C

300°C

235°C

+ 0.3 V

CC1

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections 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 time

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. A | Page 4 of 12