ADG3245 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.
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.
ADG3245 Maximum Ratings
VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to +4.6 V
Digital Inputs to GND . . . . . . . . . . . . . . . . . 0.5 V to +4.6 V
DC Input Voltage . . . . . . . . . . . . . . . . . . . . .0.5 V to +4.6 V
DC Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 120 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . 40°C to +85°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead Temperature, Soldering (10 seconds) . . . . . . . . 300°C
IR Reflow, Peak Temperature (<20 seconds) . . . . . . . 235°C
ADG3245 Features
225 ps Propagation Delay through the Switch
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
ADG3245 Typical Application
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
ADG3245 Connection Diagram
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