Analog Digital Conversion

Basics

Characteristics of converters Static Transfer

Ideal Quantizer

Unipolar and bipolar Quantizer error

Linearity

Offset and gain error

Differential nonlinearity

Differential nonlinearity

Large DNL

Integral Nonlinearity

ADC INL and DNL

DAC DNL and INL

Measurements of static Characteristics on ADC

Code Boundary Servo

Code Boundary Servo

Histogram Testing

Histogram Setup

Ideal 3 bits ADC

Sample 3 bits ADC

DNL from Histogram

Dynamic PerformanceCode Density Test - DCT

Quantization noise

Quantization noise

Signal to noise ratio

Effective number of bits ENOB

Effective number of bits ENOB

Effective number of bits ENOB

AD conversion classification

Converters Architectures

ADC -Flash

Folding Converters

Two step converter

2 stage subranging ADC

More on Subranging ADC

Recycling converter

Pipeline converter

3 bit pipelining ADC Basic Architecture

Basic Block

Example

DAC + Logics ADC

Counting Successive

approximation

Successive Approximation

Dual Slope

The Voltage-to-Frequency (V-f) Converter

Oversampling ADC

Sigma-Delta Modulators

1st Order Delta Sigma Modulator

Simulation

A SIMPLE FIRST ORDER DELTA-SIGMA CONVERTER

Digital Analog Converters

Scaling Converters

Resistor scaling

Resistor scaling R2R

Mosfet R2R

Scaled Capacitance Converter

Charge Redistribution