ANALOG DEVICES ADG3231 Service Manual

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Low Voltage, Single-Channel

Level Translator

FEATURES
Operates from 1.65 V to 3.6 V Supply Rails
Unidirectional Signal Path, Bidirectional Level Translation
Tiny 6-Lead SOT-23 Package
Short Circuit Protection
LV T TL/CMOS Compatible Inputs

APPLICATIONS
Level Translation
Low Voltage ASIC Translation
Serial Interface Translation

GENERAL DESCRIPTION

The ADG3231 is a level translator designed on a submicron
process that operates from supplies as low as 1.65 V. The device
is guaranteed for operation over the supply range 1.65 V to 3.6 V.
It operates from two supply voltages, allowing bidirectional level
translation, i.e., it translates low voltages to higher voltages and
vice versa. The signal path is unidirectional, meaning data may
fl ow only from A1 to Y1.

This type of device may be used in applications requiring commu­nication between devices operating from different supply levels.

The level translator is packaged in one of the smallest footprints
available for its pin count. The 6-lead SOT-23 package requires
only a maximum of 5.28 mm ⫻ 5.28 mm board space.

ADG3231

FUNCTIONAL BLOCK DIAGRAM

V

CC1

A1

PRODUCT HIGHLIGHTS

1. Bidirectional level translation matches any voltage level from

1.65 V to 3.6 V.

2. The device offers high performance and is fully guaranteed
across the supply range.

3. Short circuit protection.

4. Tiny SOT-23 package.

GND

V

CC2

Y1

*

*Patent Pending

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Information furnished by Analog Devices is be lieved 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. 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 companies.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © 2003 Analog Devices, Inc. All rights reserved.

(V

= V

ADG3231–SPECIFICATIONS

CC1

1

oth er wise noted.)

= 1.65 V to 3.6 V, GND = 0 V. All specifi cations T

CC2

MIN

to T

, un less

MAX

Parameter Symbol Conditions Min Typ2 Max Unit

LOGIC INPUTS/OUTPUTS
Input High Voltage4 VIH V
V
V
Input Low Voltage

4

VIL V
V
V
Output High Voltage V
V
V
I
V
I
Output Low Voltage V
V
V
I
V
I

SWITCHING CHARACTERISTICS
Propagation Delay, tPD A1 to Y1 t
Propagation Delay, t
Propagation Delay, t

PD

PD

Input Leakage Current I
Output Leakage Current I

3

4, 5

A1 to Y1 t
A1 to Y1 t

= 3.0 V to 3.6 V 1.35 V

V

IH

V

IH

V

IL

V

IL

IOH = –100 µA, V

OH

IOH = +100 µA, V

OL

, t

PHL

, t

PHL

, t

PHL

0 ⱕ VIN ⱕ 3.6 V ±1 µA

I

O

CC1

= 2.3 V to 2.7 V 1.35 V

CC1

= 1.65 V to 1.95 V 0.65 VCC 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 VCC V

CC1

= –4 mA, V

OH

= –8 mA, V

OH

= +4 mA, V

OH

= +8 mA, V

OH

3.3 V ± 0.3 V, CL = 30 pF, VT = VCC/2 4 6.5 ns

PLH

2.5 V ± 0.2 V, CL = 30 pF, VT = VCC/2 4.5 6.5 ns

PLH

1.8 V ± 0.15 V, CL = 30 pF, VT = VCC/2 6.5 10.25 ns

PLH

= 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 VCC – 0.45 V

CC2

= 2.3 V to 2.7 V 2.0 V

CC2

= 1.65 V to 1.95 V VCC – 0.45 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

0 ⱕ VIN ⱕ 3.6 V ±1 µA

POWER REQUIREMENTS
Power Supply Voltages V
V
Quiescent Power Supply Current I
I

NOTES

1

Temperature range is as follows: B Version: –40°C to +85°C.

2

All typical values are at V

3

VIL and VIH levels are specifi ed with respect to V

4

Guaranteed by design, not subject to production test.

5

See Test Circuit and Waveforms.

Specifi cations subject to change without notice.

CC1

= V

, TA = 25°C, unless otherwise stated.

CC2

CC1

1.65 3.6 V

CC1

1.65 3.6 V

CC2

Digital Inputs = 0 V or VCC 2 µA

CC1

Digital Inputs = 0 V or VCC 2 µA

CC2

; VOH and VOL levels are with respect to V

CC2

.

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ADG3231

ABSOLUTE MAXIMUM RATINGS*

(TA = 25°C, unless otherwise noted.)

VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +4.6 V

A1 Input Voltage . . . . . . . . . . . . . . . . . . . –0.3 V to V

CC1

+0.3 V

DC Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA

Operating Temperature Range

Industrial (B Version) . . . . . . . . . . . . . . . . . . –40°C to +85°C

Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .150°C

6-Lead SOT-23,

Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 229°C/W

q

JA

Lead Temperature, Soldering (10 seconds) . . . . . . . . . . . 300°C

IR Refl ow, Peak Temperature (<20 seconds) . . . . . . . . . . 235°C

*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.

ORDERING GUIDE

Model Temperature Range Package Description Branding Package Option

ADG3231BRJ-REEL –40°C to +85°C SOT-23 W2B RJ-6
ADG3231BRJ-REEL7 –40°C to +85°C SOT-23 W2B RJ-6

PIN CONFIGURATION

V

V

CC1

NC

A1

1

ADG3231

2

(No t to Scale)

3

6

CC2

Y1

5

GND

4

PIN FUNCTION DESCRIPTIONS

Pin Mnemonic Description

1 V

CC1

Supply Voltage 1, can be any supply voltage from 1.65 V to 3.6 V.
2 NC Not Internally Connected.
3 A1

Digital Input Referred to V

CC1

.
4 GND Device Ground Pin.
5 Y1
6 V

CC2

Digital Output Referred to V
Supply Voltage 2, can be any supply voltage from 1.65 V to 3.6 V.

CC2

.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily ac cu mu late
on the human body and test equipment and can discharge without detection. Although the ADG3231
features proprietary ESD pro tec tion circuitry, permanent damage may occur on devices subjected to high
energy electrostatic discharges. Therefore, proper ESD pre cau tions are rec om mend ed to avoid per for mance
deg ra da tion or loss of functionality.

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