ADG3242BRJ-R2 Analog Devices Inc, ADG3242BRJ-R2 Datasheet

IC SW BUS CTRL 2.5/3.3V SOT23-8

ADG3242BRJ-R2

Manufacturer Part Number
ADG3242BRJ-R2
Description
IC SW BUS CTRL 2.5/3.3V SOT23-8
Manufacturer
Analog Devices Inc
Type
Bus Switchr
Datasheet

Specifications of ADG3242BRJ-R2

Rohs Status
RoHS non-compliant
Circuit
2 x 1:1
Independent Circuits
1
Voltage Supply Source
Single Supply
Voltage - Supply
2.5V, 3.3V
Mounting Type
Surface Mount
Package / Case
SOT-23-8
Operating Temperature
-
Current - Output High, Low
-
Other names
ADG3242BRJ-R2CT
FEATURES
225 ps propagation delay through the switch
4.5 Ω switch connection between ports
Data rate 1.5 Gbps
2.5 V/3.3 V supply operation
Selectable level shifting/translation
Level translation
Small signal bandwidth 710 MHz
8-lead SOT-23 package
APPLICATIONS
3.3 V to 2.5 V voltage translation
3.3 V to 1.8 V voltage translation
2.5 V to 1.8 V voltage translation
Bus switching
Bus isolation
Hot swap
Hot plug
Analog switch applications
GENERAL DESCRIPTION
The ADG3242 is a 2.5 V or 3.3 V, 2-bit, 2-port, common control
digital switch. It is designed on a low voltage CMOS process, and
provides low power dissipation, yet gives high switching speed
and very low on resistance. This allows the inputs to be connected
to the outputs without additional propagation delay or generating
additional ground bounce noise.
These switches are enabled by means of a common bus enable
( BE ) input signal. This digital switch allows a bidirectional signal
to be switched when on. In the off condition, signal levels up
to the supplies are blocked.
This device is ideal for applications requiring level translation.
When operated from a 3.3 V supply, level translation from 3.3 V
inputs to 2.5 V outputs is allowed. Similarly, if the device is oper-
ated from a 2.5 V supply and 2.5 V inputs are applied, the device
translates the outputs to 1.8 V. In addition, a level translating
select pin ( SEL ) is included. When SEL is low, V
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.
3.3 V to 2.5 V
3.3 V to 1.8 V
2.5 V to 1.8 V
CC
is reduced
2.5 V/3.3 V, 2-Bit Common Control
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
internally, allowing for level translation between 3.3 V inputs
and 1.8 V outputs. This makes the device suitable for applications
requiring level translation between different supplies, such as
converter to DSP/microcontroller interfacing.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
Level Translator Bus Switch
3.3 V or 2.5 V supply operation.
Extremely low propagation delay through switch.
4.5 Ω switches connect inputs to outputs.
Level/voltage translation.
Tiny SOT-23 package.
FUNCTIONAL BLOCK DIAGRAM
A0
A1
BE
©2006 Analog Devices, Inc. All rights reserved.
Figure 1.
B0
B1
ADG3242
www.analog.com

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ADG3242BRJ-R2 Summary of contents

Page 1

FEATURES 225 ps propagation delay through the switch 4.5 Ω switch connection between ports Data rate 1.5 Gbps 2.5 V/3.3 V supply operation Selectable level shifting/translation Level translation 3 2 1.8 V 2.5 V ...

Page 2

ADG3242 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configurations and Function Descriptions ...

Page 3

SPECIFICATIONS 3.6 V, GND = 0 V; all specifications T CC Table 1. Parameter DC ELECTRICAL CHARACTERISTICS Input High Voltage Input Low Voltage Input Leakage Current Off State Leakage Current On State Leakage Current Maximum ...

Page 4

ADG3242 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V to GND CC Digital Inputs to GND DC Input Voltage DC Output Current Operating Temperature Range Industrial (B Version) Storage Temperature Range Junction Temperature θ ...

Page 5

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS ADG3242 TOP VIEW (Not to Scale) GND 4 5 Figure 2. Pin Configuration Table 3. Pin Function Descriptions Pin No. Mnemonic ...

Page 6

ADG3242 TYPICAL PERFORMANCE CHARACTERISTICS 25°C A SEL = 0.5 1.0 1 Figure 4. On Resistance vs. Input Voltage 40 T ...

Page 7

T = 25° SEL = –5µA O 2.0 1 2.3V CC 1.0 0 0.5 1.0 1 Figure 10. Pass Voltage vs. V ...

Page 8

ADG3242 –1 –2 –3 – 25°C A – 3.3V/2.5V CC SEL = V CC – 0dBm IN N/W ANALYZER: – 50Ω –8 0.03 0.1 1 ...

Page 9

V = SEL = 3. 1.5V p-p IN 20dB ATTENUATION EYE WIDTH = ((CLOCK PERIOD – JITTER p-p)/CLOCK PERIOD) × 100% 50 0.5 0.7 0.9 1.1 ...

Page 10

ADG3242 TERMINOLOGY V CC Positive power supply voltage. GND Ground (0 V) reference. V INH Minimum input voltage for Logic 1. V INL Maximum input voltage for Logic Input leakage current at the control inputs ...

Page 11

TIMING MEASUREMENT INFORMATION For the following load circuit and waveforms, the notation that is used is V and V where: IN OUT and OUT ...

Page 12

ADG3242 BUS SWITCH APPLICATIONS MIXED VOLTAGE OPERATION, LEVEL TRANSLATION Bus switches provide an ideal solution for interfacing between mixed voltage systems. The ADG3242 is suitable for applications where voltage translation from 3.3 V technology to a lower voltage technology is ...

Page 13

BUS ISOLATION A common requirement of bus architectures is low capacitance loading of the bus. Such systems require bus bridge devices that extend the number of loads on the bus without exceeding the spec- ifications. Because the ADG3242 is designed ...

Page 14

... ADG3242 OUTLINE DIMENSIONS INDICATOR 0.15 MAX ORDERING GUIDE Model Temperature Range ADG3242BRJ-R2 −40°C to +85°C ADG3242BRJ-REEL −40°C to +85°C ADG3242BRJ-REEL7 −40°C to +85°C 1 ADG3242BRJZ-REEL7 −40°C to +85°C 1 ADG3242BCZ-SF3 −40°C to +85° Pb-free part. 2.90 BSC 1.60 BSC 2 ...

Page 15

NOTES Rev Page ADG3242 ...

Page 16

ADG3242 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C04309-0-9/06(A) Rev Page ...

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