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Products Mentioned
ADG706Production
The ADG706 and ADG707 are low-voltage, CMOS analog
multiplexers comprising 16 single channels and eight differential
channels, respectively. The ADG706...
Datasheet ADG706 on Analog.com
The user inquires about ESD protection and OPA compensation for the ADG706 when used with CVBS signals. The ADG706 has a 1.5kV HBM ESD rating, and additional protection may be needed for higher ESD levels. For standard CVBS signals, a dual supply (±2.5V) is recommended to avoid exceeding the switch's maximum ratings, and a 5Ω on resistance is typical, which should not significantly affect the output signal. The user confirms normal test results with a camera signal, and further suggestions are sought for single supply operation.
AI Generated Content
Can provide reference schematic ? the input end of S1 ~ S16 need to strengthen the ESD protection? Thank you!
Thank you, the applied to directly connect the CVBS signal (camera), so I do not know is not required add ESD protection component , and another question, ADG706 output is not required add OPA compensation CVBS signal? Thank you!
For a standard CVBS signal we recommend that the part be operated from ±2.5V dual supply and that a termination is placed before the switch. When operated at ±2.5V dual supply, the on resistance has a maximum of 5ohms over temperature.
If you are not using a standard signal, please let me know what signal you are using and the load.
From my understanding, a standard CVBS signal is 1V peak to peak with no DC bias. Therefore, you will need to use a dual supply for the ADG706.
If your CVBS signal is biased above 0V, you can use a single supply, but you must ensure that the signal stays within the signal range of the switch; GND and VDD.
If your signal goes beyond the rails of the switch you will exceed the maximum ratings.
