Features and Benefits
- Full featured evaluation board for the ADG4612
- Power-off protection
Switch guaranteed off with no power supplies present
Inputs are high impedance with no power
- Switch turns off if input > VDD + VT
- Overvoltage protection up to 16 V
- PSS robust
- Negative signal capability passes signals down to −5.5 V
This user guide describes the evaluation board for the ADG4612 quad SPST switches.
Figure 1 shows the EVAL-ADG4612EBZ. The 16-lead TSSOP ADG4612 is soldered onto the center of the evaluation board and is designated as U2.
The evaluation kit contains a fully fitted printed circuit board (PCB). Full details about the part are available in the ADG4612 data sheet, which should be consulted when using the EVALADG4612EBZ.
When power supplies are not present, the switch remains off, and the switch inputs are high impedance, which ensures that current does not damage the switch. This is useful in applications where analog signals can be present at the switch inputs before power, or where the user has no control over the power supply sequence.
When off, signal levels up to 16 V are blocked. In addition, if the analog input signal levels exceed VDD by VT, the switch turns off.