<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.1.0">
<drawing>
<board>
<plain>
<wire x1="6.35" y1="0" x2="67.31" y2="0" width="0" layer="20"/>
<wire x1="0" y1="17.78" x2="0" y2="6.35" width="0" layer="20"/>
<wire x1="6.35" y1="0" x2="0" y2="6.35" width="0" layer="20" curve="-90"/>
<wire x1="0" y1="17.78" x2="6.35" y2="24.13" width="0" layer="20" curve="-90"/>
<wire x1="73.66" y1="6.35" x2="67.31" y2="0" width="0" layer="20" curve="-90"/>
<wire x1="67.31" y1="24.13" x2="73.66" y2="17.78" width="0" layer="20" curve="-90"/>
<text>ADC Keychain
By: John Boyd
JohnBoydIV@Gmail.com</text>
<text>Vin</text>
<wire x1="6.35" y1="24.13" x2="67.31" y2="24.13" width="0" layer="20"/>
<wire x1="73.66" y1="17.78" x2="73.66" y2="6.35" width="0" layer="20"/>
<text>ADC Keychain
A 4 bit pipelined ADC designed entirely
with discrete components.

John Boyd IV
email: JohnBoydIV@Gmail.com
Phone: (817) 707-7211</text>
</plain>
<libraries>
<library name="led">
<description>&lt;b&gt;LEDs&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;&lt;br&gt;
Extended by Federico Battaglin &lt;author&gt;&amp;lt;federico.rd@fdpinternational.com&amp;gt;&lt;/author&gt; with DUOLED</description>
<packages>
<package name="CHIP-LED0603">
<description>&lt;b&gt;Hyper CHIPLED Hyper-Bright LED&lt;/b&gt;&lt;p&gt;
LB Q993&lt;br&gt;
Source: http://www.osram.convergy.de/ ... Lb_q993.pdf</description>
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, 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="0603-RES">
</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="SWITCH-SPDT-SMD">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="TC33X">
</package>
<package name="CR1220-SMD">
</package>
</packages>
</library>
<library name="Texas Instruments_By_element14_Batch_1">
<description>Developed by element14 :&lt;br&gt;
element14 CAD Library consolidation.ulp
at 30/07/2012 17:45:58</description>
<packages>
<package name="SOIC127P600X175-14N">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="D0" library="led" package="CHIP-LED0603" value="LNJ826W86RA"/>
<element name="D1" library="led" package="CHIP-LED0603" value="LNJ826W86RA"/>
<element name="D2" library="led" package="CHIP-LED0603" value="LNJ826W86RA"/>
<element name="D3" library="led" package="CHIP-LED0603" value="LNJ826W86RA"/>
<element name="R1" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R10" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R11" library="SparkFun-Resistors" package="0603-RES" value="100">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R12" library="SparkFun-Resistors" package="0603-RES" value="100">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R13" library="SparkFun-Resistors" package="0603-RES" value="100">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R14" library="SparkFun-Resistors" package="0603-RES" value="100">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R4" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R5" library="SparkFun-Resistors" package="0603-RES" value="10K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R6" library="SparkFun-Resistors" package="0603-RES" value="10K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R7" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R8" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="R9" library="SparkFun-Resistors" package="0603-RES" value="1K">
<attribute name="PROD_ID" value="RES-07856"/>
</element>
<element name="S1" library="SparkFun-Electromechanical" package="SWITCH-SPDT-SMD" value=""/>
<element name="U$1" library="adafruit" package="TC33X" value=""/>
<element name="U$2" library="adafruit" package="CR1220-SMD" value=""/>
<element name="U1" library="Texas Instruments_By_element14_Batch_1" package="SOIC127P600X175-14N" value="TLV274ID">
<attribute name="PACKAGE" value="SOIC-14"/>
<attribute name="OC_NEWARK" value="38K8452"/>
<attribute name="MPN" value="TLV274ID"/>
<attribute name="SUPPLIER" value="Texas Instruments"/>
<attribute name="OC_FARNELL" value="8455317"/>
</element>
<element name="U2" library="Texas Instruments_By_element14_Batch_1" package="SOIC127P600X175-14N" value="TLV274ID">
<attribute name="PACKAGE" value="SOIC-14"/>
<attribute name="OC_NEWARK" value="38K8452"/>
<attribute name="MPN" value="TLV274ID"/>
<attribute name="SUPPLIER" value="Texas Instruments"/>
<attribute name="OC_FARNELL" value="8455317"/>
</element>
</elements>
<signals>
<signal name="VDD">
<contactref element="U1" pad="4"/>
<contactref element="R5" pad="1"/>
<contactref element="U2" pad="4"/>
<contactref element="U$1" pad="3"/>
<contactref element="S1" pad="3"/>
</signal>
<signal name="GND">
<contactref element="U1" pad="11"/>
<contactref element="R6" pad="2"/>
<contactref element="U2" pad="11"/>
<contactref element="D3" pad="C"/>
<contactref element="D2" pad="C"/>
<contactref element="D1" pad="C"/>
<contactref element="D0" pad="C"/>
<contactref element="U$2" pad="-"/>
<contactref element="U$1" pad="1"/>
</signal>
<signal name="D3">
<contactref element="U1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="R2" pad="1"/>
<contactref element="U1" pad="6"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="VIN">
<contactref element="U1" pad="5"/>
<contactref element="U1" pad="3"/>
<contactref element="U$1" pad="2"/>
</signal>
<signal name="VTHRESH">
<contactref element="U1" pad="2"/>
<contactref element="U1" pad="9"/>
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="1"/>
<contactref element="U2" pad="2"/>
<contactref element="U2" pad="9"/>
</signal>
<signal name="N$5">
<contactref element="U1" pad="14"/>
<contactref element="R3" pad="1"/>
<contactref element="U2" pad="5"/>
<contactref element="U2" pad="3"/>
</signal>
<signal name="D2">
<contactref element="R4" pad="1"/>
<contactref element="U1" pad="8"/>
<contactref element="R12" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="R3" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="U1" pad="13"/>
</signal>
<signal name="N$8">
<contactref element="U1" pad="7"/>
<contactref element="R2" pad="2"/>
<contactref element="U1" pad="10"/>
<contactref element="U1" pad="12"/>
</signal>
<signal name="D1">
<contactref element="U2" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R8" pad="1"/>
<contactref element="U2" pad="6"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="U2" pad="14"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="D0">
<contactref element="R10" pad="1"/>
<contactref element="U2" pad="8"/>
<contactref element="R14" pad="1"/>
</signal>
<signal name="N$11">
<contactref element="R9" pad="2"/>
<contactref element="R10" pad="2"/>
<contactref element="U2" pad="13"/>
</signal>
<signal name="N$12">
<contactref element="U2" pad="7"/>
<contactref element="R8" pad="2"/>
<contactref element="U2" pad="10"/>
<contactref element="U2" pad="12"/>
</signal>
<signal name="N$1">
<contactref element="R11" pad="2"/>
<contactref element="D3" pad="A"/>
</signal>
<signal name="N$2">
<contactref element="R12" pad="2"/>
<contactref element="D2" pad="A"/>
</signal>
<signal name="N$6">
<contactref element="R13" pad="2"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="N$10">
<contactref element="R14" pad="2"/>
<contactref element="D0" pad="A"/>
</signal>
<signal name="N$14">
<contactref element="U$2" pad="+$1"/>
<contactref element="U$2" pad="+$2"/>
<contactref element="S1" pad="2"/>
</signal>
<signal name="N$16">
</signal>
<signal name="N$15">
</signal>
<signal name="N$13">
</signal>
</signals>
</board>
</drawing>
</eagle>
