ADG3246BRUZ-REEL7 Analog Devices Inc, ADG3246BRUZ-REEL7 Datasheet

2.5V/3.3v,Dual 8/16-bit, 2 Port Bus SW/T

ADG3246BRUZ-REEL7

Manufacturer Part Number
ADG3246BRUZ-REEL7
Description
2.5V/3.3v,Dual 8/16-bit, 2 Port Bus SW/T
Manufacturer
Analog Devices Inc
Type
Bus Switchr
Datasheet

Specifications of ADG3246BRUZ-REEL7

Circuit
10 x 1:1
Independent Circuits
1
Voltage Supply Source
Single Supply
Voltage - Supply
2.5V, 3.3V
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Current - Output High, Low
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
GENERAL DESCRIPTION
The ADG3246 is a 2.5 V or 3.3 V, 10-bit, 2-port digital switch.
It is designed on Analog Devices’ low voltage CMOS process,
which provides low power dissipation yet gives high switching
speed and very low on resistance, allowing inputs to be connected
to outputs without additional propagation delay or generating
additional ground bounce noise.
The switches are enabled by means of the bus enable (BE)
input signal. These digital switches allow bidirectional signals 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 occurs. Similarly, if the device is oper-
ated from a 2.5 V supply and 2.5 V inputs are applied, the device
will translate the outputs to 1.8 V. In addition to this, the ADG3246
has a level translating select pin (SEL). When SEL is low, V
reduced internally, allowing for level translation between 3.3 V
inputs and 1.8 V outputs. This makes the device suited to appli-
cations requiring level translation between different supplies,
such as converter to DSP/microcontroller interfacing.
REV. 0
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. 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.
FEATURES
225 ps Propagation Delay through the Switch
4.5
Data Rate 1.244 Gbps
2.5 V/3.3 V Supply Operation
Selectable Level Shifting/Translation
Small Signal Bandwidth 610 MHz
Level Translation
24-Lead TSSOP and LFCSP Packages
APPLICATIONS
3.3 V to 1.8 V Voltage Translation
3.3 V to 2.5 V Voltage Translation
2.5 V to 1.8 V Voltage Translation
Bus Switching
Bus Isolation
Hot Swap
Hot Plug
Analog Signal Switching
3.3 V to 2.5 V
3.3 V to 1.8 V
2.5 V to 1.8 V
Switch Connection between Ports
CC
is
PRODUCT HIGHLIGHTS
1. 3.3 V or 2.5 V supply operation
2. Extremely low propagation delay through switch
3. 4.5 W switches connect inputs to outputs
4. Level/voltage translation
5. 24-lead 4 mm ¥ 4 mm LFCSP and 24-lead TSSOP packages
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Level Translating, Bus Switch
A0
A9
2.5 V/3.3 V, 10-Bit, 2-Port
FUNCTIONAL BLOCK DIAGRAM
© 2003 Analog Devices, Inc. All rights reserved.
BE
ADG3246
www.analog.com
B0
B9

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ADG3246BRUZ-REEL7 Summary of contents

Page 1

FEATURES 225 ps Propagation Delay through the Switch 4.5 Switch Connection between Ports Data Rate 1.244 Gbps 2.5 V/3.3 V Supply Operation Selectable Level Shifting/Translation Small Signal Bandwidth 610 MHz Level Translation 3 2 ...

Page 2

ADG3246–SPECIFICATIONS Parameter DC ELECTRICAL CHARACTERISTICS Input High Voltage Input Low Voltage Input Leakage Current OFF State Leakage Current ON State Leakage Current Maximum Pass Voltage 3 CAPACITANCE A Port Off Capacitance B Port Off Capacitance A, B Port On Capacitance ...

Page 3

ABSOLUTE MAXIMUM RATINGS 25°C, unless otherwise noted GND . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V ...

Page 4

ADG3246 V Positive Power Supply Voltage. CC GND Ground (0 V) Reference. V Minimum Input Voltage for Logic 1. INH V Maximum Input Voltage for Logic 0. INL I Input Leakage Current at the Control Inputs OFF State ...

Page 5

SEL = 3. 3. 0.5 1.0 1.5 2.0 2.5 3.0 3 ...

Page 6

ADG3246 3 2 2.0 = 3.3V; SEL = 1.5 = SEL = 3. 1.0 0.5 = SEL = 2. ...

Page 7

SEL = 3. p 20dB ATTENUATION EYE WIDTH = ((CLOCK PERIOD – 55 JITTER p-p)/CLOCK PERIOD) 100% 50 0.5 0.6 0.7 0.8 0.9 ...

Page 8

ADG3246 For the following load circuit and waveforms, the notation that is used OUT IN PULSE D.U.T. GENERATOR R T NOTES t PULSE GENERATOR FOR ALL PULSES: 2.5ns, R FREQUENCY 10MHz. C INCLUDES BOARD, ...

Page 9

BUS SWITCH APPLICATIONS Mixed Voltage Operation, Level Translation Bus switches can be used to provide an ideal solution for interfac- ing between mixed voltage systems. The ADG3246 is suitable for applications where voltage translation from 3.3 V technology to a ...

Page 10

ADG3246 V OUT 3.3V SUPPLY SEL = 0V 1.8V 0V SWITCH 3.3V INPUT Figure 10. 3 1.8 V Voltage Translation, SEL = 0 V Bus Isolation A common requirement of bus architectures is low capacitance loading of the ...

Page 11

PIN 1 INDICATOR 1.00 12 MAX 0.90 0.85 0.25 REF SEATING PLANE 24-Lead Thin Shrink Small Outline Package [TSSOP] PIN 1 0.15 0.05 REV. 0 OUTLINE DIMENSIONS 24-Lead Lead Frame Chip Scale Package [LFCSP Body (CP-24) ...

Page 12

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