Latch driver for ADG1611

I'm using several ADG1611 in my project, so there are lots of control lines in it. I'm trying to reduce the amount of control lines by using latched serial drivers with at least 8 outputs. Which one do you recomend me? I'm a bit lost here, so, do I need sink drivers or source drivers?

  • 0
    •  Analog Employees 
    on May 17, 2012 8:27 PM

    Hello Damaso,

    Could you provide me with a schematic of your circuit? I would like to understand how you want to use the latched serial driver.

    Regards,

    Sean

  • This part of the circuit is a current-to-voltage conversion. It has to detect currents form hundreds of picoamperes to tens of miliamperes, so I decided to implement it this way. There's another circuit just like this one, so I need 8 control signals for this part only, and I'm also using switches in other parts of the design.

    I was thinking of using a logic 8-bit decoder with active high outputs so I only need to use 3 control signals to fully configure the switches for this part of the design. Maybe using a serial latch driver is "overkill" for something so simple.

  • 0
    •  Analog Employees 
    on May 18, 2012 8:14 PM

    Hello Damaso,

    I assume you are placing the ADG1611 in position U6 and U8. Bear in mind that the ADG1611 is specified for ±5V not ±10V as per U8.

    Are you trying to control U8 using the output of the op-amps which is why you are asking about the latch drivers?

    What signals will be presented at W1_CHx? Will they be AC? How do you want the switch to behave if the output of the op-amp integrates down?

    Regards,

    Sean

  • 0
    •  Analog Employees 
    on Aug 2, 2018 4:35 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin