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XTR111: Review of circuit

Sahil Berde
Intellectual 730 points
Part Number: XTR111


Hi,

Can you please review the below circuit?

  • 0
    TI__Guru 55466 points

    Hello Sahol,

    The schematic overall looks good. 

    - Please increase the VREGF and VREGS bypass capacitor to 470nF to follow the datasheet recommendation of Figure 45.

    - If possible, please add a 15-ohm series resistor at the drain of the  PFET, as shown on the datasheet recommended circuit

    -  The circuit accepts a 0-2.5V input and produces a 0mA to 20.83mA current output. Let me know if this is not the transfer function you require.

    Thank you and Regards,

    Luis

  • 0 in reply to Luis Chioye
    Intellectual 730 points

    Thank you for your review.

    Please see my comments in BOLD.

    - Please increase the VREGF and VREGS bypass capacitor to 470nF to follow the datasheet recommendation of Figure 45.(Im not using voltage regulator. Hence I have followed the recommendation given in datasheet which is attached below)

    - If possible, please add a 15-ohm series resistor at the drain of the  PFET, as shown on the datasheet recommended circuit(I apologize for not sending you entire document. Please find it attached below)


    -  The circuit accepts a 0-2.5V input and produces a 0mA to 20.83mA current output. Let me know if this is not the transfer function you require.(0-20mA is the requirement for me)

  • 0 in reply to Sahil Berde
    TI__Guru 55466 points

    HI Sahol,

    Thank you, let us know if you require anything else.

    Kind Regards,

    Luis