<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.5.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="79.68" y2="0" width="0" layer="20"/>
<wire x1="79.68" y1="0" x2="79.68" y2="72.38" width="0" layer="20"/>
<wire x1="79.68" y1="72.38" x2="0" y2="72.38" width="0" layer="20"/>
<wire x1="0" y1="72.38" x2="0" y2="0" width="0" layer="20"/>
<text>Bandwidth</text>
<text>High</text>
<text>Low</text>
<text>High</text>
<text>Low</text>
<text>Bandwidth</text>
<text>Buff_out</text>
<text>4-40 holes 2.75x2.5"</text>
<text>Constant Current Source
2015-07-14
Ryan Dwyer</text>
<text>Buffered, high power
composite difference
amplifier</text>
<text>High, low speed
current to voltage
converters</text>
<text>High speed switch</text>
<text>Dummy load</text>
<text>Current setting Rs</text>
<text>Vin</text>
<text>I = </text>
<text>2(R30||R31)</text>
<text>Byp Switch</text>
<text>I_return</text>
<text>I_out</text>
<text>V_ref</text>
<text>I bipolar if switch bypassed,
I positive only otherwise</text>
<text>U6+/U6- turn off
U6 for low power</text>
<text>V_sense</text>
</plain>
<libraries>
<library name="rpd78">
<description>&lt;b&gt; Ryan's Eagle Library&lt;/b&gt; &lt;p&gt;

This contains parts I have designed, as well as useful parts from standard libraries. In particular, there are useful schematic symbols for multpliers, standardized symbols for commonly used op amps, and connectors I have used successfully in my designs.</description>
<packages>
<package name="R0805">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;</description>
</package>
<package name="9V_KEYSTONE">
</package>
<package name="SOT23-5">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt;, 5 lead</description>
</package>
<package name="C1206K">
<description>&lt;b&gt;Ceramic Chip Capacitor KEMET 1206 reflow solder&lt;/b&gt;&lt;p&gt;
Metric Code Size 3216</description>
</package>
<package name="1X02_LOCK">
</package>
<package name="SOIC8">
<description>&lt;b&gt;Small Outline IC&lt;/b&gt;</description>
</package>
<package name="C0603K">
<description>&lt;b&gt;Ceramic Chip Capacitor KEMET 0603 reflow solder&lt;/b&gt;&lt;p&gt;
Metric Code Size 1608</description>
</package>
<package name="SO8">
<description>&lt;b&gt;8-Lead Small Outline IC&lt;/b&gt; (SO-8)&lt;p&gt;
Source: http://www.analog.com/UploadedFiles/Data_Sheets/703465986AD8611_2_0.pdf</description>
</package>
<package name="BNC">
<description>Fits Mouser Part#5227161</description>
</package>
<package name="1X03_LOCK">
</package>
<package name="B/3528-21R">
<description>&lt;b&gt;Chip Capacitor Type KEMET B / EIA 3528-21 reflow solder&lt;/b&gt;&lt;p&gt;KEMET T / EIA 3528-12</description>
</package>
</packages>
</library>
<library name="SparkFun-DiscreteSemi">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find discrete semiconductors- transistors, diodes, TRIACs, optoisolators, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="SOT23">
<description>&lt;b&gt;SOT-23&lt;/b&gt;</description>
</package>
<package name="SOT23-3">
</package>
</packages>
</library>
<library name="Analog Devices_By_element14_Batch_1">
<description>Developed by element14 :&lt;br&gt;
element14 CAD Library consolidation.ulp
at 31/07/2012 09:37:13</description>
<packages>
<package name="SOIC127P600X175-8N">
</package>
</packages>
</library>
<library name="eagle-ltspice">
<description>Default symbols for import LTspice schematics&lt;p&gt;
2012-10-29 alf@cadsoft.de&lt;br&gt;</description>
<packages>
<package name="LED_LD260">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
5 mm, square, Siemens</description>
</package>
</packages>
</library>
<library name="SparkFun-Electromechanical">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find anything that moves- switches, relays, buttons, potentiometers. Also, anything that goes on a board but isn't electrical in nature- screws, standoffs, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="STANDOFF-ELECTRICAL">
</package>
<package name="STAND-OFF">
<description>&lt;b&gt;Stand Off&lt;/b&gt;&lt;p&gt;
This is the mechanical footprint for a #4 phillips button head screw. Use the keepout ring to avoid running the screw head into surrounding components. SKU : PRT-00447</description>
</package>
</packages>
</library>
<library name="SparkFun-Connectors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find connectors and sockets- basically anything that can be plugged into or onto.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="1X02_LOCK_LONGPADS">
<description>This footprint was designed to help hold the alignment of a through-hole component (i.e.  6-pin header) while soldering it into place.  
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).  
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes.  Because they are alternating, it causes a "brace" 
to hold the component in place.  0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice.  Also,
if you push a header all the way into place, it is covered up entirely on the bottom side.  This idea of altering the position of holes to aid alignment 
will be further integrated into the Sparkfun Library for other footprints.  It can help hold any component with 3 or more connection pins.</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="R31" library="rpd78" package="R0805" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R51" library="rpd78" package="R0805" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="BAT1" library="rpd78" package="9V_KEYSTONE" value=""/>
<element name="BAT2" library="rpd78" package="9V_KEYSTONE" value=""/>
<element name="U-" library="rpd78" package="SOT23-5" value="LT1964">
<attribute name="MPN" value="LT1964ES5-5#TRMPBF"/>
<attribute name="MF" value="LT"/>
<attribute name="OC_DIGIKEY" value="LT1964ES5-5#TRMPBFCT-ND"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R02" library="rpd78" package="R0805" value="1.5k"/>
<element name="C00" library="rpd78" package="C1206K" value="10u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C-0" library="rpd78" package="C1206K" value="10u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C-1" library="rpd78" package="C1206K" value="0.01u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SW1" library="rpd78" package="1X02_LOCK" value="M02LOCK">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U+" library="rpd78" package="SOIC8" value="LT1762"/>
<element name="R01" library="rpd78" package="R0805" value="1"/>
<element name="Q1" library="SparkFun-DiscreteSemi" package="SOT23" value="MOSFET-NCHANNELBSS123LT1G">
<attribute name="PROD_ID" value="TRANS-08345"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q2" library="SparkFun-DiscreteSemi" package="SOT23-3" value="MOSFET-PCHANNEL">
<attribute name="PROD_ID" value="TRANS-08285"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R03" library="rpd78" package="R0805" value="1.5k"/>
<element name="R00" library="rpd78" package="R0805" value="1"/>
<element name="C01" library="rpd78" package="C1206K" value="10u"/>
<element name="C+0" library="rpd78" package="C1206K" value="10u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C+1" library="rpd78" package="C1206K" value="0.01u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R+0" library="rpd78" package="R0805" value="5.36k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R+1" library="rpd78" package="R0805" value="1.3k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="P+" library="rpd78" package="1X02_LOCK" value="M02LOCK">
<attribute name="NAME"/>
</element>
<element name="P-" library="rpd78" package="1X02_LOCK" value="M02LOCK">
<attribute name="NAME"/>
</element>
<element name="U2" library="Analog Devices_By_element14_Batch_1" package="SOIC127P600X175-8N" value="AD8278ARZ">
<attribute name="PACKAGE" value="SOIC-8"/>
<attribute name="OC_NEWARK" value="24R9033"/>
<attribute name="MPN" value="AD8278ARZ"/>
<attribute name="SUPPLIER" value="Analog Devices"/>
<attribute name="OC_FARNELL" value="1827366"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C20" library="rpd78" package="C0603K" value="0.1u"/>
<element name="C70" library="rpd78" package="C0603K" value="0.1u"/>
<element name="C71" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IN" library="rpd78" package="1X02_LOCK" value="M02LOCK">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U3" library="rpd78" package="SO8" value="LM7321">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R30" library="rpd78" package="R0805" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CTL" library="SparkFun-Connectors" package="1X02_LOCK_LONGPADS" value="M02LOCK_LONGPADS">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U4" library="rpd78" package="SO8" value="MAX4544S"/>
<element name="C41" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R41" library="rpd78" package="R0805" value="10">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED1" library="eagle-ltspice" package="LED_LD260" value="">
<attribute name="SPICEMODEL" value="NONE"/>
<attribute name="SPICETYPE" value="diode"/>
<attribute name="SPICEPREFIX" value="D"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IOUT" library="rpd78" package="BNC" value="BNCPTH"/>
<element name="R50" library="rpd78" package="R0805" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U5" library="rpd78" package="SO8" value="OP1177R">
<attribute name="MPN" value="MPN"/>
<attribute name="MF" value="AD"/>
<attribute name="OC_DIGIKEY" value="DIGIKEY"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C51" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C50" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C31" library="rpd78" package="C0603K" value="0.1u"/>
<element name="C30" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C52" library="rpd78" package="C1206K" value="0.01u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R52" library="rpd78" package="R0805" value="49.9"/>
<element name="U6" library="rpd78" package="SOT23-5" value="AD8067"/>
<element name="R60" library="rpd78" package="R0805" value="200">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C62" library="rpd78" package="C1206K" value="100p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IVSEL" library="rpd78" package="1X03_LOCK" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C06" library="rpd78" package="B/3528-21R" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C07" library="rpd78" package="B/3528-21R" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IVOSEL" library="rpd78" package="1X03_LOCK" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U6+" library="rpd78" package="1X02_LOCK" value="M02LOCK">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U6-" library="rpd78" package="1X02_LOCK" value="M02LOCK">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IVOUT" library="rpd78" package="BNC" value="BNCPTH"/>
<element name="C61" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C60" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S1" library="SparkFun-Electromechanical" package="STANDOFF-ELECTRICAL" value="STANDOFF_ELECTRICAL"/>
<element name="STANDOFF1" library="SparkFun-Electromechanical" package="STAND-OFF" value="STAND-OFF"/>
<element name="STANDOFF2" library="SparkFun-Electromechanical" package="STAND-OFF" value="STAND-OFF"/>
<element name="STANDOFF3" library="SparkFun-Electromechanical" package="STAND-OFF" value="STAND-OFF"/>
<element name="C21" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="rpd78" package="SO8" value="AD8641R">
<attribute name="MPN" value="MPN"/>
<attribute name="MF" value="AD"/>
<attribute name="OC_DIGIKEY" value="DIGIKEY"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U7" library="rpd78" package="SO8" value="AD8641R">
<attribute name="MPN" value="MPN"/>
<attribute name="MF" value="AD"/>
<attribute name="OC_DIGIKEY" value="DIGIKEY"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C10" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C11" library="rpd78" package="C0603K" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="GND" library="rpd78" package="1X03_LOCK" value=""/>
<element name="JP1" library="rpd78" package="1X03_LOCK" value=""/>
<element name="GND1" library="rpd78" package="1X03_LOCK" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="U-" pad="1"/>
<contactref element="C00" pad="2"/>
<contactref element="C-0" pad="2"/>
<contactref element="BAT2" pad="P-"/>
<contactref element="BAT1" pad="P+"/>
<contactref element="U+" pad="4"/>
<contactref element="C01" pad="2"/>
<contactref element="R+1" pad="1"/>
<contactref element="C+0" pad="2"/>
<contactref element="C20" pad="2"/>
<contactref element="U2" pad="2"/>
<contactref element="C71" pad="2"/>
<contactref element="C70" pad="2"/>
<contactref element="U4" pad="4"/>
<contactref element="C41" pad="2"/>
<contactref element="R41" pad="2"/>
<contactref element="LED1" pad="K"/>
<contactref element="C50" pad="2"/>
<contactref element="C51" pad="2"/>
<contactref element="C31" pad="2"/>
<contactref element="C30" pad="2"/>
<contactref element="U5" pad="3"/>
<contactref element="U6" pad="3"/>
<contactref element="C06" pad="-"/>
<contactref element="C07" pad="+"/>
<contactref element="C61" pad="2"/>
<contactref element="C60" pad="2"/>
<contactref element="S1" pad="P1"/>
<contactref element="C21" pad="1"/>
<contactref element="C10" pad="2"/>
<contactref element="C11" pad="2"/>
<contactref element="IVOUT" pad="GND"/>
<contactref element="GND" pad="3"/>
<contactref element="GND" pad="2"/>
<contactref element="GND" pad="1"/>
<contactref element="GND1" pad="3"/>
<contactref element="GND1" pad="2"/>
<contactref element="GND1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R50" pad="1"/>
<contactref element="R51" pad="1"/>
<contactref element="U5" pad="2"/>
<contactref element="C52" pad="1"/>
<contactref element="IVSEL" pad="1"/>
</signal>
<signal name="V$IR">
<contactref element="R50" pad="2"/>
<contactref element="R51" pad="2"/>
<contactref element="C52" pad="2"/>
<contactref element="U5" pad="6"/>
<contactref element="IVOSEL" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="U-" pad="2"/>
<contactref element="C00" pad="1"/>
<contactref element="Q1" pad="3"/>
<contactref element="U-" pad="4"/>
</signal>
<signal name="N$6">
<contactref element="C-1" pad="2"/>
<contactref element="U-" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="BAT2" pad="P+"/>
<contactref element="R00" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="R02" pad="2"/>
<contactref element="Q1" pad="1"/>
<contactref element="SW1" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="Q2" pad="3"/>
<contactref element="R03" pad="2"/>
<contactref element="R01" pad="1"/>
</signal>
<signal name="N$12">
<contactref element="R03" pad="1"/>
<contactref element="Q2" pad="1"/>
<contactref element="SW1" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="R02" pad="1"/>
<contactref element="Q1" pad="2"/>
<contactref element="R00" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="Q2" pad="2"/>
<contactref element="U+" pad="8"/>
<contactref element="U+" pad="5"/>
<contactref element="C01" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="R+0" pad="1"/>
<contactref element="U+" pad="2"/>
<contactref element="R+1" pad="2"/>
</signal>
<signal name="N$15">
<contactref element="C+1" pad="2"/>
<contactref element="U+" pad="3"/>
</signal>
<signal name="N$17">
<contactref element="C-0" pad="1"/>
<contactref element="C-1" pad="1"/>
<contactref element="U-" pad="5"/>
<contactref element="P-" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="U+" pad="1"/>
<contactref element="R+0" pad="2"/>
<contactref element="C+1" pad="1"/>
<contactref element="C+0" pad="1"/>
<contactref element="P+" pad="2"/>
</signal>
<signal name="-5V">
<contactref element="P-" pad="1"/>
<contactref element="U2" pad="4"/>
<contactref element="C20" pad="1"/>
<contactref element="C70" pad="1"/>
<contactref element="U5" pad="4"/>
<contactref element="C50" pad="1"/>
<contactref element="C30" pad="1"/>
<contactref element="C07" pad="-"/>
<contactref element="U6-" pad="1"/>
<contactref element="U3" pad="4"/>
<contactref element="U1" pad="4"/>
<contactref element="C10" pad="1"/>
<contactref element="U7" pad="4"/>
</signal>
<signal name="VCC">
<contactref element="P+" pad="1"/>
<contactref element="U2" pad="7"/>
<contactref element="C71" pad="1"/>
<contactref element="C41" pad="1"/>
<contactref element="U4" pad="8"/>
<contactref element="U5" pad="7"/>
<contactref element="C51" pad="1"/>
<contactref element="U6+" pad="1"/>
<contactref element="C31" pad="1"/>
<contactref element="U3" pad="7"/>
<contactref element="C06" pad="+"/>
<contactref element="C21" pad="2"/>
<contactref element="U1" pad="7"/>
<contactref element="C11" pad="1"/>
<contactref element="U7" pad="7"/>
</signal>
<signal name="N$1">
<contactref element="U2" pad="3"/>
<contactref element="U1" pad="2"/>
<contactref element="U1" pad="6"/>
</signal>
<signal name="N$19">
<contactref element="IN" pad="2"/>
<contactref element="IN" pad="1"/>
<contactref element="U1" pad="3"/>
</signal>
<signal name="N$18">
<contactref element="U2" pad="1"/>
<contactref element="U7" pad="2"/>
<contactref element="U7" pad="6"/>
</signal>
<signal name="N$20">
<contactref element="U3" pad="3"/>
<contactref element="U2" pad="6"/>
</signal>
<signal name="N$21">
<contactref element="U3" pad="2"/>
<contactref element="U3" pad="6"/>
<contactref element="U2" pad="5"/>
<contactref element="R30" pad="1"/>
<contactref element="R31" pad="1"/>
</signal>
<signal name="N$22">
<contactref element="R31" pad="2"/>
<contactref element="R30" pad="2"/>
<contactref element="U4" pad="2"/>
<contactref element="U7" pad="3"/>
<contactref element="JP1" pad="3"/>
</signal>
<signal name="N$24">
<contactref element="LED1" pad="A"/>
<contactref element="R41" pad="1"/>
<contactref element="U4" pad="3"/>
</signal>
<signal name="N$25">
<contactref element="IVSEL" pad="2"/>
<contactref element="IOUT" pad="GND"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="N$26">
<contactref element="R60" pad="1"/>
<contactref element="C62" pad="1"/>
<contactref element="U6" pad="4"/>
<contactref element="IVSEL" pad="3"/>
</signal>
<signal name="V$IR1">
<contactref element="R60" pad="2"/>
<contactref element="C62" pad="2"/>
<contactref element="U6" pad="1"/>
<contactref element="IVOSEL" pad="3"/>
</signal>
<signal name="N$2">
<contactref element="CTL" pad="2"/>
<contactref element="CTL" pad="1"/>
<contactref element="U4" pad="7"/>
</signal>
<signal name="N$23">
<contactref element="R52" pad="1"/>
<contactref element="IVOSEL" pad="2"/>
</signal>
<signal name="N$27">
<contactref element="U6-" pad="2"/>
<contactref element="U6" pad="2"/>
<contactref element="C60" pad="1"/>
</signal>
<signal name="N$28">
<contactref element="U6+" pad="2"/>
<contactref element="U6" pad="5"/>
<contactref element="C61" pad="1"/>
</signal>
<signal name="N$29">
<contactref element="R52" pad="2"/>
<contactref element="IVOUT" pad="S"/>
</signal>
<signal name="N$30">
<contactref element="R01" pad="2"/>
<contactref element="BAT1" pad="P-"/>
</signal>
<signal name="N$11">
<contactref element="U4" pad="1"/>
<contactref element="JP1" pad="2"/>
<contactref element="IOUT" pad="S"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
