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-{
- "cells": [
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "# Chapter 11 Digital To Analog Converter(D/A Converter)"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.1 Pg 313"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 2,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "the full scale voltage of D/A converter VFS is = 24.00 V \n"
- ]
- }
- ],
- "source": [
- "from __future__ import division\n",
- "from math import sqrt, pi\n",
- "# to determine the full scale voltage of D/A\n",
- "Vref = 12 #\n",
- "Rf = 10 # # K ohm\n",
- "R = 5 # # K ohm\n",
- "\n",
- "# the full scale voltage of D/A converter \n",
- "VFS = Vref*(Rf/R) #\n",
- "print 'the full scale voltage of D/A converter VFS is = %0.2f'%VFS,' V '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.2 Pg 313"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 3,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "For BI 10101010 the output of D/A converter is = 2.04 V \n",
- "For BI 11001100 the output of D/A converter is = 2.448 V \n",
- "For BI 11101110 the output of D/A converter is = 2.856 V \n",
- "For BI 00010001 the output of D/A converter is = 0.204 V \n"
- ]
- }
- ],
- "source": [
- " # determine the output voltage of D/A converter for the binary inputs a) 10101010 b) 11001100 c) 11101110 d) 00010001 \n",
- "Del = 12*10**-3 # # mA\n",
- "\n",
- "# the input voltage of D/A converter \n",
- " #Vo = Del*binary input (BI)\n",
- "\n",
- "# For BI 10101010 the output\n",
- "BI = '10101010' #\n",
- "BI = int(BI,2)#\n",
- "Vo = Del*BI #\n",
- "print 'For BI 10101010 the output of D/A converter is = ',Vo,' V '\n",
- "\n",
- "# For BI 11001100 the output\n",
- "BI = '11001100' #\n",
- "BI = int(BI,2)#\n",
- "Vo = Del*BI #\n",
- "print 'For BI 11001100 the output of D/A converter is = ',Vo,' V '\n",
- "\n",
- "# For BI 11101110 the output\n",
- "BI = '11101110' #\n",
- "BI = int(BI,2)#\n",
- "Vo = Del*BI #\n",
- "print 'For BI 11101110 the output of D/A converter is = ',Vo,' V '\n",
- "\n",
- "# For BI 00010001 the output\n",
- "BI = '00010001' #\n",
- "BI = int(BI,2)#\n",
- "Vo = Del*BI #\n",
- "print 'For BI 00010001 the output of D/A converter is = ',Vo,' V '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.3 Pg 314"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 4,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "the resolution of 4-bit D/A converter is = 0.80 V \n"
- ]
- }
- ],
- "source": [
- "# determine the resolution of 4-bit D/A converter\n",
- "VFS = 12 #\n",
- "N = 4 #\n",
- "\n",
- "# the resolution of 4-bit D/A converter is defined as\n",
- "Resolution = VFS/(2**N-1) #\n",
- "print 'the resolution of 4-bit D/A converter is = %0.2f'%Resolution,' V '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.4 314"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 5,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "the number of bit required to design a 4-bit D/A converter is = 8.97 = 9 \n"
- ]
- }
- ],
- "source": [
- "from math import log10\n",
- "# determine the number of bit required to design a 4-bit D/A converter\n",
- "VFS = 5 #\n",
- "Resolution = 10*10**-3 # # A\n",
- "\n",
- "# the resolution of 4-bit D/A converter is defined as\n",
- "# Resolution = VFS/(2**N-1) #\n",
- "N = (VFS/Resolution)+1 # \n",
- "N = log10(N)/log10(2)#\n",
- "print 'the number of bit required to design a 4-bit D/A converter is = %0.2f'%N,' = 9 '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.5 Pg 315"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 6,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "for the binary input 101 analog output is = -60.00 V \n",
- "for the binary input 111 analog output is = -84.00 V \n",
- "for the binary input 011 analog output is = -72.00 V \n",
- "for the binary input 001 analog output is = -48.00 V \n",
- "for the binary input 100 analog output is = -12.00 V\n"
- ]
- }
- ],
- "source": [
- "# determine the analog output voltage\n",
- "Vref = 12 # \n",
- "BI = 101 # BI = 111 # BI = 011 # BI = 001 # BI = 100 #\n",
- "Rf = 40*10**3 #\n",
- "R = 0.25*Rf #\n",
- "\n",
- "# The output voltage of given binary weighted resistor D/A converter is defined as\n",
- "\n",
- "# Vo = -(Rf*Vref/R)*(2**0*b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# Vo = -(Rf*Vref/R)*(b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# for the given value Rf,R and Vref the output voltage\n",
- "\n",
- "# Vo = -48*(b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# for the binary input 101 analog output is\n",
- "b2 = 1 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "Vo = -48*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 101 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 111 analog output is\n",
- "b2 = 1 #\n",
- "b1 = 1 #\n",
- "b0 = 1 #\n",
- "Vo = -48*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 111 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 011 analog output is\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 1 #\n",
- "Vo = -48*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 011 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 001 analog output is\n",
- "b2 = 0 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "Vo = -48*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 001 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 100 analog output is\n",
- "b2 = 1 #\n",
- "b1 = 0 #\n",
- "b0 = 0 #\n",
- "Vo = -48*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 100 analog output is = %0.2f'%Vo,' V'"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.6 Pg 316"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 7,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "for the binary input 1001 analog output is = -67.50 V \n",
- "the feedback current If is = 2.70 mA \n",
- "for the binary input 1101 analog output is = -82.50 V \n",
- "the feedback current If is = 3.30 mA \n",
- "for the binary input 1010 analog output is = -37.50 V \n",
- "the feedback current If is = 1.50 mA \n",
- "for the binary input 0011 analog output is = -90.00 V \n",
- "the feedback current If is = 3.60 mA \n"
- ]
- }
- ],
- "source": [
- "# determine the analog output voltage and feed back current If\n",
- "Vref = 12 # \n",
- "BI = 1001 # BI = 1101 # BI = 1010 # BI = 0011 #\n",
- "Rf = 25 # # K ohm\n",
- "R = 0.25*Rf #\n",
- "\n",
- "# The output voltage of given binary weighted resistor D/A converter is defined as\n",
- "\n",
- "# Vo = -(Rf*Vref/R)*(2**0*b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "\n",
- "# Vo = -(Rf*Vref/R)*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "\n",
- "# for the given value Rf,R and Vref the output voltage\n",
- "\n",
- "# Vo = -60*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "\n",
- "# for the binary input 1001 analog output is\n",
- "b3 = 1 #\n",
- "b2 = 0 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "Vo = -60*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 1001 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '\n",
- "\n",
- "\n",
- "# for the binary input 1101 analog output is\n",
- "b3 = 1 #\n",
- "b2 = 1 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "Vo = -60*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 1101 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '\n",
- "\n",
- "\n",
- "# for the binary input 1010 analog output is\n",
- "b3 = 1 #\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 0 #\n",
- "Vo = -60*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 1010 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '\n",
- "\n",
- "\n",
- "# for the binary input 0011 analog output is\n",
- "b3 = 0 #\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 1 #\n",
- "Vo = -60*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 0011 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.7 Pg 319"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 8,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "for the binary input 001 analog output is = 1.60 mA \n",
- "An analog output voltage Vo is = -40.00 V \n",
- "for the binary input 010 analog output is = 0.80 mA\n",
- "An analog output voltage Vo is = -20.00 V \n",
- "for the binary input 110 analog output is = 1.20 mA \n",
- "An analog output voltage Vo is = -30.00 V \n"
- ]
- }
- ],
- "source": [
- "# determine the feed back current If and analog output voltage\n",
- "Vref = 8 # # V\n",
- "BI = 001 #\n",
- "BI = 010 #\n",
- "BI = 110 #\n",
- "Rf = 25*10**3 # # Hz\n",
- "R = 0.2*Rf #\n",
- "\n",
- "# The output current of given binary weighted resistor D/A converter is defined as\n",
- "\n",
- "# If = -(Vref/R)*(2**0*b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# If = -(Vref/R)*(b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# for the given value Rf,R and Vref the output current\n",
- "\n",
- "# If = -(1.6*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# for the binary input 001 the feedback current If is given by\n",
- "b2 = 0 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "If = (1.6*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 001 analog output is = %0.2f'%(If*1000),' mA '\n",
- "\n",
- "# An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.2f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 010 the feedback current If is given by\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 0 #\n",
- "If = (1.6*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 010 analog output is = %0.2f'%(If*1000),' mA'\n",
- "\n",
- "# the An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.2f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 110 the feedback current If is given by\n",
- "b2 = 1 #\n",
- "b1 = 1 #\n",
- "b0 = 0 #\n",
- "If = (1.6*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 110 analog output is = %0.2f'%(If*1000),' mA '\n",
- "\n",
- "# the An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.2f'%Vo,' V '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.8 Pg 320"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 10,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "for the binary input 101 analog output is = 0.625 mA \n",
- "An analog output voltage Vo is = -15.625 V \n",
- "for the binary input 011 analog output is = 0.75 mA\n",
- "An analog output voltage Vo is = -18.750 V \n",
- "for the binary input 100 analog output is = 0.125 mA \n",
- "An analog output voltage Vo is = -3.12 V \n",
- "for the binary input 001 analog output is = 0.5 mA \n",
- "An analog output voltage Vo is = -12.50 V \n"
- ]
- }
- ],
- "source": [
- "from __future__ import division\n",
- "# determine the feed back current If and analog output voltage\n",
- "Vref = 5 # \n",
- "BI = 101 # BI = 011 # BI = 100 # BI = 001 #\n",
- "Rf = 25*10**3 # \n",
- "R = 0.2*Rf #\n",
- "\n",
- "# The output current of given R-2R ladder D/A converter is defined as\n",
- "\n",
- "# If = -(Vref/2*R)*(2**0*b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# If = -(Vref/2*R)*(b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# for the given value Rf,R and Vref the output current\n",
- "\n",
- "# If = (0.5*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "\n",
- "# for the binary input 101 the feedback current If is given by\n",
- "b2 = 1 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "If = (0.5*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 101 analog output is = %0.3f'%(If*1e3),' mA '\n",
- "\n",
- "# An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.3f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 011 the feedback current If is given by\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 1 #\n",
- "If = (0.5*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 011 analog output is = %0.2f'%(If*1e3),' mA'\n",
- "\n",
- "# the An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.3f'%Vo,' V '\n",
- "\n",
- "\n",
- "# for the binary input 100 the feedback current If is given by\n",
- "b2 = 1 #\n",
- "b1 = 0 #\n",
- "b0 = 0 #\n",
- "If = (0.5*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 100 analog output is = %0.3f'%(If*1e3),'mA '\n",
- "\n",
- "# the An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.2f'%Vo,' V '\n",
- "\n",
- "# for the binary input 001 the feedback current If is given by\n",
- "b2 = 0 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "If = (0.5*10**-3)*(b0+2**-1*b1+2**-2*b2) #\n",
- "print 'for the binary input 001 analog output is = %0.1f'%(If*1e3),' mA '\n",
- "\n",
- "# the An analog output voltage Vo is\n",
- "Vo = -If*Rf #\n",
- "print 'An analog output voltage Vo is = %0.2f'%Vo,' V '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.9 Pg 322"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 15,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "for the binary input 1001 analog output is = -14.0625 V \n",
- "the feedback current If is = 0.28 mA \n",
- "for the binary input 1100 analog output is = -4.6875 V \n",
- "the feedback current If is = 0.09 mA \n",
- "for the binary input 1010 analog output is = -7.8125 V \n",
- "the feedback current If is = 0.16 mA \n",
- "for the binary input 0011 analog output is = -18.75 V \n",
- "the feedback current If is = 0.375 mA \n"
- ]
- }
- ],
- "source": [
- " # determine the analog output voltage and feed back current If\n",
- "Vref = 10 # \n",
- "BI = 1001 # BI = 1100 # BI = 1010 # BI = 0011 #\n",
- "Rf = 50 # # K ohm\n",
- "R = 0.4*Rf #\n",
- "\n",
- "# The output voltage of given R-2R ladder D/A converter is defined as\n",
- "\n",
- "# Vo = -(Rf*Vref/2R)*(2**0*b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "\n",
- "# Vo = -(Rf*Vref/2R)*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "\n",
- "# for the given value Rf,R and Vref the output voltage\n",
- "\n",
- "# Vo = -12.5*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "\n",
- "# for the binary input 1001 analog output is\n",
- "b3 = 1 #\n",
- "b2 = 0 #\n",
- "b1 = 0 #\n",
- "b0 = 1 #\n",
- "Vo = -12.5*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 1001 analog output is = %0.4f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '\n",
- "\n",
- "\n",
- "# for the binary input 1100 analog output is\n",
- "b3 = 1 #\n",
- "b2 = 1 #\n",
- "b1 = 0 #\n",
- "b0 = 0 #\n",
- "Vo = -12.5*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 1100 analog output is = %0.4f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '\n",
- "\n",
- "\n",
- "# for the binary input 1010 analog output is\n",
- "b3 = 1 #\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 0 #\n",
- "Vo = -12.5*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 1010 analog output is = %0.4f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.2f'%If,' mA '\n",
- "\n",
- "\n",
- "# for the binary input 0011 analog output is\n",
- "b3 = 0 #\n",
- "b2 = 0 #\n",
- "b1 = 1 #\n",
- "b0 = 1 #\n",
- "Vo = -12.5*(b0+2**-1*b1+2**-2*b2+2**-3*b3) #\n",
- "print 'for the binary input 0011 analog output is = %0.2f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.3f'%If,' mA '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.10 Pg 324"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 17,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "for the binary input 1000 output voltage is = 18.75 V \n",
- "the feedback current If is = -0.469 mA \n"
- ]
- }
- ],
- "source": [
- " # determine the analog output voltage and feed back current If\n",
- "Vref = 15 # \n",
- "BI = 1000 #\n",
- "Rf = 40 # # K ohm\n",
- "R = 0.4*Rf #\n",
- "\n",
- "# by using voltage divider rule Vin can be calculated as\n",
- "Vin = -(Vref*2*R)/(2*R+2*R) #\n",
- " \n",
- "# The output voltage of given R-2R ladder D/A converter is defined as\n",
- "\n",
- "# Vo = -(Rf*Vin/R)\n",
- "\n",
- "Vo = (Vref*Rf)/(2*R)\n",
- "print 'for the binary input 1000 output voltage is = %0.2f'%Vo,' V '\n",
- "\n",
- "# the feedback current If is given by\n",
- "If = -(Vo/Rf) #\n",
- "print 'the feedback current If is = %0.3f'%If,' mA '"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 11.11 Pg 326"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 20,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "For the BI 10101111 output analog voltage is = 6.86 V \n",
- "For the BI 11100010 output analog voltage is = 8.8627 V \n",
- "For the BI 00101001 output analog voltage is = 1.6078 V \n",
- "For the BI 01000110 output analog voltage is = 2.745 V \n"
- ]
- }
- ],
- "source": [
- "# to find the resolution and analog output voltage of 8-bit D/A converter\n",
- "VFS = 10 #\n",
- "N = 8 #\n",
- "BI = 10101111 #\n",
- "BI = 11100011 # \n",
- "BI = 00101001 #\n",
- "BI = 01000110\n",
- "\n",
- "# the resolution of 8-bit D/A converter is defined as\n",
- "Resolution = VFS/(2**N-1) #\n",
- "\n",
- "# An analog output voltage of D/A converter is given by\n",
- "# Vo = Resolution*(2**-0*b0+2**-1*b1+....+2**-N*bn-1)\n",
- "# Vo = Resolution*(2**-0*b0+2**-1*b1+2**-2*b2+2**-3*b3+2**-4*b4+2**-5*b5+2**-6*b6+2**-7*b7)#\n",
- "\n",
- "# For the BI 10101111 output analog voltage is\n",
- "BI = '10101111'#\n",
- "BI = int(BI,2)#\n",
- "Vo = Resolution*BI #\n",
- "print 'For the BI 10101111 output analog voltage is = %0.2f'%Vo,' V '\n",
- "\n",
- "# For the BI 11100010 output analog voltage is\n",
- "BI = '11100010'#\n",
- "BI = int(BI,2)#\n",
- "Vo = Resolution*BI #\n",
- "print 'For the BI 11100010 output analog voltage is = %0.4f'%Vo,' V '\n",
- "\n",
- "# For the BI 00101001 output analog voltage is\n",
- "BI = '00101001'#\n",
- "BI = int(BI,2)#\n",
- "Vo = Resolution*BI #\n",
- "print 'For the BI 00101001 output analog voltage is = %0.4f'%Vo,' V '\n",
- "\n",
- "# For the BI 01000110 output analog voltage is\n",
- "BI = '01000110'#\n",
- "BI = int(BI,2)#\n",
- "Vo = Resolution*BI #\n",
- "print 'For the BI 01000110 output analog voltage is = %0.3f'%Vo,' V '"
- ]
- }
- ],
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