GENERAL DESCRIPTION

The ADG3245 is a 2.5 V or 3.3 V, 8-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 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 to this, a

level translating select pin (SEL) is included. When SEL is low,

VCC is reduced internally, allowing for level translation between

3.3 V inputs and 1.8 V outputs. This makes the device suited to

applications requiring level translation between different supplies,

such as converter to DSP/microcontroller interfacing.

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

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 610 MHz

20-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 Switch Applications

ADG3245BRU属于集成电路（IC） > 信号开关，多路复用器，解码器。亚德诺半导体技术有限公司制造生产的ADG3245BRU信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。