ADG3257BRQZ Analog Devices Inc, ADG3257BRQZ Datasheet

IC MUX QUAD 3.3/5V HS 16-QSOP

ADG3257BRQZ

Manufacturer Part Number
ADG3257BRQZ
Description
IC MUX QUAD 3.3/5V HS 16-QSOP
Manufacturer
Analog Devices Inc
Type
Multiplexer/Demultiplexerr
Datasheet

Specifications of ADG3257BRQZ

Circuit
4 x 1:2
Independent Circuits
1
Voltage Supply Source
Single Supply
Voltage - Supply
3.3V, 5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
No. Of Circuits
4
Supply Current
1nA
On State Resistance Max
2ohm
Supply Voltage Range
3V To 5.5V
Operating Temperature Range
-40°C To +85°C
Analog Switch Case Style
QSOP
No. Of Pins
16
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output High, Low
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

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FEATURES
100 ps propagation delay through the switch
2 Ω switches connect inputs to outputs
Data rates up to 933 Mbps
Single 3.3 V/5 V supply operation
Level translation operation
Ultralow quiescent supply current (1 nA typical)
3.5 ns switching
Switches remain in the off state when power is off
Standard 3257 type pinout
APPLICATIONS
Bus switching
Bus isolation
Level translation
Memory switching/interleaving
GENERAL DESCRIPTION
The ADG3257 is a CMOS bus switch comprised of four 2:1
multiplexers/demultiplexers with high impedance outputs. The
device is manufactured on a CMOS process. This provides low
power dissipation yet high switching speed and very low on
resistance, allowing the inputs to be connected to the outputs
without adding propagation delay or generating additional
ground bounce noise.
The ADG3257 operates from a single 3.3 V/5 V supply. The
control logic for each switch is shown in Table 1. These switches
are bidirectional when on. In the off state, signal levels are blocked
up to the supplies. When the power supply is off, the switches
remain in the off state, isolating Port A and Port B.
This bus switch is suited to both switching and level translation
applications. It can be used in applications requiring level trans-
lation from 3.3 V to 2.5 V when powered from 3.3 V. Additionally,
with a diode connected in series with 5 V V
may also be used in applications requiring 5 V to 3.3 V level
translation.
Table 1. Truth Table
BE
H
L
L
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no re-
sponsibility 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.
S
X
L
H
Function
Disable
A = B
A = B
1
2
DD
, the ADG3257
High Speed, 3.3 V/5 V Quad 2:1 Mux/Demux
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
1A
2A
3A
4A
0.1 ns propagation delay through switch.
2 Ω switches connect inputs to outputs.
Bidirectional operation.
Ultralow power dissipation.
16-lead QSOP package.
(4-Bit, 1 of 2) Bus Switch
FUNCTIONAL BLOCK DIAGRAM
©2002–2008 Analog Devices, Inc. All rights reserved.
BE
Figure 1.
LOGIC
S
ADG3257
www.analog.com
1B
1B
2B
2B
3B
3B
4B
4B
2
1
1
2
1
2
1
2

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ADG3257BRQZ Summary of contents

Page 1

FEATURES 100 ps propagation delay through the switch 2 Ω switches connect inputs to outputs Data rates up to 933 Mbps Single 3.3 V/5 V supply operation Level translation operation Ultralow quiescent supply current (1 nA typical) 3.5 ns switching ...

Page 2

ADG3257 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 ............................................................ 5 ESD Caution .................................................................................. 5 REVISION ...

Page 3

SPECIFICATIONS V = 5.0 V ± 10%, GND = 0 V. All specifications T CC Table 2. Parameter 1 DC ELECTRICAL CHARACTERISTICS Input High Voltage Input Low Voltage Input Leakage Current Off State Leakage Current On State Leakage Current 4 ...

Page 4

ADG3257 V = 3.3 V ± 10%, GND = 0 V. All specifications T CC Table 3. 1 Parameter DC ELECTRICAL CHARACTERISTICS Input High Voltage Input Low Voltage Input Leakage Current Off State Leakage Current On State Leakage Current 4 ...

Page 5

ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. 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 QSOP Package ...

Page 6

ADG3257 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic 10, 11, 13 1A, 2A, 3A GND 15 BE ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 25° Figure 3. On Resistance vs. Input Voltage 25°C ...

Page 8

ADG3257 3 25°C A 3.0 2.0 1 0.5 1.0 1.5 2.0 INPUT VOLTAGE (V) Figure 9. Maximum Pass Voltage 40mV/DIV 20dB ATTENUATION CC 267ps/DIV p 622MBPS Figure ...

Page 9

TEST CIRCUITS OUT PULSE DUT 1 GENERATOR PULSE GENERATOR FOR ALL PULSES: 2.5ns, F < INCLUDES BOARD, STRAY, AND LOAD CAPACITANCES THE TERMINATION ...

Page 10

ADG3257 APPLICATIONS INFORMATION MIXED VOLTAGE OPERATION, LEVEL TRANSLATION Bus switches can be used to provide a solution for mixed voltage systems where interfacing bidirectionally between 5 V and 3.3 V devices is required. To interface between 5 V and 3.3 ...

Page 11

... ADG3257BRQ –40°C to +85°C ADG3257BRQ-REEL –40°C to +85°C ADG3257BRQ-REEL7 –40°C to +85°C 1 ADG3257BRQZ –40°C to +85°C ADG3257BRQZ-REEL 1 –40°C to +85°C 1 ADG3257BRQZ-REEL7 –40°C to +85° RoHS Compliant Part. 0.197 0.193 0.189 16 9 0.158 0.154 0.244 0.150 1 0 ...

Page 12

ADG3257 NOTES – ©2002 2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02914-0-3/08(E) Rev Page ...

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