2.5 V/3.3 V, 2-Bit, Common Control
Level Translator Bus Switch
ADG3242
FEATURES
225 ps Propagation Delay through the Switch
4.5 Switch Connection between Ports
Data Rate 1.5 Gbps
2.5 V/3.3 V Supply Operation
Selectable Level Shifting/Translation
Level Translation
3.3 V to 2.5 V
3.3 V to 1.8 V
2.5 V to 1.8 V
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
PRODUCT HIGHLIGHTS
FUNCTIONAL BLOCK DIAGRAM
A0
B0
A1
B1
BE
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, which 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
operated 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, a level
translating select pin (SEL) is included. When
SEL
is low, V
CC
is reduced 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.
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3.3 V or 2.5 V supply operation.
Extremely low propagation delay through switch.
4.5
鈩?/div>
switches connect inputs to outputs.
Level/voltage translation.
Tiny SOT-23 package.
REV. 0
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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.
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Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
漏 2003 Analog Devices, Inc. All rights reserved.
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