Mixed-Signal Option for the Teradyne Integra

J750 Test System

May08-12

Emily Evers

Vincent Tai

Definitions

ADC – Analog-to-Digital Converter DAC – Digital-to-Analog Converter DIB – Device Interface Board DUT – Device under Test IG-XL – Software used by Teradyne for the J750 tester INL – Integral Nonlinearity DNL – Differential Nonlinearity

Input Requirements & Specifications

Input Requirements Devices

ADC DAC Op-Amp

Input Specifications ADC

10 bit 12 bit

DAC 10 bit 12 bit

Op-Amp High Speed

Inputs

Detailed Design ADC

AD7892 AD7470

Op-Amp AD823

DAC AD5447 AD5440

Output

Requirements Test Results

Specifications Input Signals Output Signals Calculations

Outputs

ADC HLHLHL

DACHLHLHL

Op-Amp

Outputs

Detailed Design ADC and DAC

INL DNL

Op-Amp Bandwidth Offset Voltages Intermodulation Test

Outputs

Detailed Design Integral Nonlinearity

Digital Input 0x00 - 0xFF

Ana

log

Out

put 0

- 5

V •

INL = Actual Output - Expected Output

Actual Output

Expected Output

Outputs

Detailed Design DNL

Digital Input 0x00 - 0xFF

Ana

log

Out

put 0

- 5

V

•

DNL=Actual Step Size - Expected Step Size

Expected Step Size

Actual Step Size

Outputs

Detailed Design Intermodulation Test

100

-60dB

0dB

FREQUENCY

F2 150 200 250500

F2

+ F

1

F2

- F

1

F1

MA

GN

ITU

DE

User Interface

Requirements Mixed-Signal Cookbook IG-XL

Specifications Mixed-Signal Cookbook

Written in English Easy-to-use

IG-XL Program Create test programs

with adequate commenting

User Interface

Software

Requirements IG-XL

Specifications Pin & Channel Maps AC & DC Specs Time Sets Levels Test Instances Procedures Flow Table

Software

Detailed Design Data for IG-XL worksheets is gathered from the

datasheets for the DUT

Software

AC specs

Time Sets

Hardware

Requirements Teradyne J750 Device Interface Computer

Specifications DIB Daughterboard Socket Converter

Hardware

Detailed Design Create mapping from DIB to DUT

Map DIB to Daughterboard Map Daughterboard to Socket Converter Map Socket Converter to DUT

Hardware

Hardware

Hardware

Testing

Requirements Cookbook use

Team Members Faculty Advisor Students

Specifications Ease of manipulation for

different models Ease of changing desired

calculations

Thank You

Questions?