2.5 V/3.3 V, 2-Bit, Individual Control
Level Translator Bus Switch
ADG3243
FEATURES
FUNCTIONAL BLOCK DIAGRAM
225 ps Propagation Delay through the Switch
4.5 ⍀ Switch Connection between Ports
Data Rate 1.5 Gbps
B0
A0
2.5 V/3.3 V Supply Operation
Level Translation
3.3 V to 2.5 V
2.5 V to 1.8 V
BE0
Small Signal Bandwidth 710 MHz
8-Lead SOT-23 Package
APPLICATIONS
3.3 V to 2.5 V Voltage Translation
2.5 V to 1.8 V Voltage Translation
Bus Switching
B1
A1
Bus Isolation
Hot Swap
BE1
Hot Plug
Analog Switch Applications
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG3243 is a 2.5 V or 3.3 V, 2-bit, 2-port digital switch
with individual channel control. 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 propa-
gation delay or generating additional ground bounce noise.
1. 3.3 V or 2.5 V supply operation.
2. Extremely low propagation delay through switch.
3. 4.5 Ω switches connect inputs to outputs.
4. Level/voltage translation.
5. Tiny SOT-23 package.
The switches are enabled by means of the bus enable (BEx) 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. This makes the device
suited to applications requiring level translation between different
supplies, such as converter to DSP/microcontroller interfacing.
REV. 0
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