(kicad_sch (version 20211123) (generator eeschema)
  (paper "A4")
  (lib_symbols
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      (property "Value" "Conn_01x04_Female" (id 1) (at 0 -7.62 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "connector" (id 4) (at 0 0 0))
      (property "ki_description" "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0))
      (symbol "Conn_01x04_Female_1_1"
        (arc (start 0 -4.572) (mid -0.508 -5.08) (end 0 -5.588)
          (fill (type none))
        )
        (arc (start 0 -2.032) (mid -0.508 -2.54) (end 0 -3.048)
          (fill (type none))
        )
        (polyline
          (pts
            (xy -1.27 -5.08)
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          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy -1.27 -2.54)
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        )
        (polyline
          (pts
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        )
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          (pts
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        )
        (arc (start 0 0.508) (mid -0.508 0) (end 0 -0.508)
          (fill (type none))
        )
        (arc (start 0 3.048) (mid -0.508 2.54) (end 0 2.032)
          (fill (type none))
        )
        (pin passive line (at -5.08 2.54 0) (length 3.81)
          (name "Pin_1")
          (number "1")
        )
        (pin passive line (at -5.08 0 0) (length 3.81)
          (name "Pin_2")
          (number "2")
        )
        (pin passive line (at -5.08 -2.54 0) (length 3.81)
          (name "Pin_3")
          (number "3")
        )
        (pin passive line (at -5.08 -5.08 0) (length 3.81)
          (name "Pin_4")
          (number "4")
        )
      )
    )
    (symbol "Device:C" (pin_numbers hide) (pin_names (offset 0.254)) (in_bom yes) (on_board yes)
      (property "Reference" "C" (id 0) (at 0.635 2.54 0))
      (property "Value" "C" (id 1) (at 0.635 -2.54 0))
      (property "Footprint" "" (id 2) (at 0.9652 -3.81 0))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "cap capacitor" (id 4) (at 0 0 0))
      (property "ki_description" "Unpolarized capacitor" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "C_*" (id 6) (at 0 0 0))
      (symbol "C_0_1"
        (polyline
          (pts
            (xy -2.032 -0.762)
            (xy 2.032 -0.762)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy -2.032 0.762)
            (xy 2.032 0.762)
          )
          (fill (type none))
        )
      )
      (symbol "C_1_1"
        (pin passive line (at 0 3.81 270) (length 2.794)
          (name "~")
          (number "1")
        )
        (pin passive line (at 0 -3.81 90) (length 2.794)
          (name "~")
          (number "2")
        )
      )
    )
    (symbol "Device:R" (pin_numbers hide) (pin_names (offset 0)) (in_bom yes) (on_board yes)
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      (property "Value" "R" (id 1) (at 0 0 90))
      (property "Footprint" "" (id 2) (at -1.778 0 90))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "R res resistor" (id 4) (at 0 0 0))
      (property "ki_description" "Resistor" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "R_*" (id 6) (at 0 0 0))
      (symbol "R_0_1"
        (rectangle (start -1.016 -2.54) (end 1.016 2.54)
          (fill (type none))
        )
      )
      (symbol "R_1_1"
        (pin passive line (at 0 3.81 270) (length 1.27)
          (name "~")
          (number "1")
        )
        (pin passive line (at 0 -3.81 90) (length 1.27)
          (name "~")
          (number "2")
        )
      )
    )
    (symbol "max:MAX4468EKA+" (pin_names (offset 0.254)) (in_bom yes) (on_board yes)
      (property "Reference" "U" (id 0) (at 35.56 10.16 0))
      (property "Value" "MAX4468EKA+" (id 1) (at 35.56 7.62 0))
      (property "Footprint" "21-0078H_MXM" (id 2) (at 35.56 6.096 0))
      (property "Datasheet" "" (id 3) (at 0 0 0))
      (property "ki_locked" "" (id 4) (at 0 0 0))
      (property "ki_fp_filters" "21-0078H_MXM 21-0078H_MXM-M 21-0078H_MXM-L" (id 5) (at 0 0 0))
      (symbol "MAX4468EKA+_1_1"
        (polyline
          (pts
            (xy 7.62 -12.7)
            (xy 63.5 -12.7)
          )
          (fill (type none))
        )
        (polyline
          (pts
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        (polyline
          (pts
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        )
        (polyline
          (pts
            (xy 63.5 5.08)
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          (fill (type none))
        )
        (pin power_in line (at 0 0 0) (length 7.62)
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          (number "1")
        )
        (pin input line (at 0 -2.54 0) (length 7.62)
          (name "IN+")
          (number "2")
        )
        (pin input line (at 0 -5.08 0) (length 7.62)
          (name "IN-")
          (number "3")
        )
        (pin output line (at 0 -7.62 0) (length 7.62)
          (name "MIC_BIAS")
          (number "4")
        )
        (pin no_connect line (at 71.12 -7.62 180) (length 7.62)
          (name "NC")
          (number "5")
        )
        (pin input line (at 71.12 -5.08 180) (length 7.62)
          (name "SHDN")
          (number "6")
        )
        (pin power_in line (at 71.12 -2.54 180) (length 7.62)
          (name "VCC")
          (number "7")
        )
        (pin output line (at 71.12 0 180) (length 7.62)
          (name "OUT")
          (number "8")
        )
      )
    )
    (symbol "power:Earth" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
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      (property "Value" "Earth" (id 1) (at 0 -3.81 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "power-flag ground gnd" (id 4) (at 0 0 0))
      (property "ki_description" "Power symbol creates a global label with name \"Earth\"" (id 5) (at 0 0 0))
      (symbol "Earth_0_1"
        (polyline
          (pts
            (xy -0.635 -1.905)
            (xy 0.635 -1.905)
          )
          (fill (type none))
        )
        (polyline
          (pts
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            (xy 0.127 -2.54)
          )
          (fill (type none))
        )
        (polyline
          (pts
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            (xy 0 0)
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          (fill (type none))
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        (polyline
          (pts
            (xy 1.27 -1.27)
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          )
          (fill (type none))
        )
      )
      (symbol "Earth_1_1"
        (pin power_in line (at 0 0 270) (length 0) hide
          (name "Earth")
          (number "1")
        )
      )
    )
  )
  (junction (at 41.91 77.47) (diameter 0) (color 0 0 0 0))
  (junction (at 123.19 116.84) (diameter 0) (color 0 0 0 0))
  (junction (at 107.95 116.84) (diameter 0) (color 0 0 0 0))
  (junction (at 41.91 85.09) (diameter 0) (color 0 0 0 0))
  (junction (at 33.02 85.09) (diameter 0) (color 0 0 0 0))
  (wire (pts (xy 41.91 85.09) (xy 41.91 86.36)))
  (wire (pts (xy 123.19 116.84) (xy 123.19 128.27)))
  (wire (pts (xy 129.54 116.84) (xy 123.19 116.84)))
  (wire (pts (xy 33.02 77.47) (xy 41.91 77.47)))
  (wire (pts (xy 95.25 116.84) (xy 107.95 116.84)))
  (wire (pts (xy 50.8 93.98) (xy 50.8 92.71)))
  (wire (pts (xy 123.19 116.84) (xy 120.65 116.84)))
  (wire (pts (xy 176.53 114.3) (xy 184.15 114.3)))
  (wire (pts (xy 113.03 128.27) (xy 107.95 128.27)))
  (wire (pts (xy 177.8 109.22) (xy 184.15 109.22)))
  (wire (pts (xy 33.02 96.52) (xy 33.02 92.71)))
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  (wire (pts (xy 85.09 85.09) (xy 95.25 85.09)))
  (wire (pts (xy 52.07 77.47) (xy 41.91 77.47)))
  (wire (pts (xy 93.98 90.17) (xy 95.25 90.17)))
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  (label "MICRO" (at 48.26 120.65 0))
  (label "IN-" (at 93.98 90.17 0))
  (label "Alim" (at 166.37 87.63 0))
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  (label "MIC_BIAS" (at 88.9 92.71 0))
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  (label "MICRO" (at 72.39 116.84 0))
  (label "IN-" (at 100.33 116.84 0))
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  (label "MICRO" (at 48.26 123.19 0))
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    (property "Intersheet References" "${INTERSHEET_REFS}" (id 0) (at 44.3955 125.8094 0))
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  (symbol (lib_id "max:MAX4468EKA+") (at 95.25 85.09 0) (unit 1)
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    (property "Footprint" "MAX4468:MAX4468EKA&plus_" (id 2) (at 130.81 78.994 0))
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    (pin "1")
    (pin "2")
    (pin "3")
    (pin "4")
    (pin "5")
    (pin "6")
    (pin "7")
    (pin "8")
  )
  (symbol (lib_id "Device:R") (at 41.91 90.17 0) (unit 1)
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    (pin "2")
  )
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    )
    (path
      (reference "R5") (unit 1) (value "20k") (footprint "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder")
    )
    (path
      (reference "R6") (unit 1) (value "200k") (footprint "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder")
    )
    (path
      (reference "U1") (unit 1) (value "MAX4468EKA+") (footprint "MAX4468:MAX4468EKA&plus_")
    )
  )
)
