Mixed-Signal Option for
the Teradyne Integra
J750 Test System
May08-12
Emily Evers
Vincent Tai
Definitions
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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
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Input Requirements
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Devices
 ADC
 DAC
 Op-Amp
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Input Specifications
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ADC
 10 bit
 12 bit
DAC
 10 bit
 12 bit
Op-Amp
 High Speed
Inputs
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Detailed Design
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ADC
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Op-Amp
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AD7892
AD7470
AD823
DAC
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AD5447
AD5440
Output
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Requirements
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Test Results
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Specifications
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Input Signals
Output Signals
Calculations
Outputs
HLHLHL
ADC
HLHLHL
DAC
Op-Amp
Outputs
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Detailed Design
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ADC and DAC
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INL
DNL
Op-Amp
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Bandwidth
Offset Voltages
Intermodulation Test
Outputs
Detailed Design
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Integral Nonlinearity
INL = Actual Output - Expected
Output
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Analog Output 0 - 5V
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Actual Output
•
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Expected Output
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Digital Input 0x00 - 0xFF
Outputs
Detailed Design
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DNL
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Analog Output 0 - 5V
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•
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Actual Step
Size
Expected Step Size
DNL=Actual Step Size - Expected Step
Size
Digital Input 0x00 - 0xFF
Outputs
Detailed Design
Intermodulation Test
0dB
0
50
F2 - F1
F2
F2 + F1
-60dB
F1
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MAGNITUDE
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100
150
FREQUENCY
200
250
User Interface
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Requirements
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Mixed-Signal Cookbook
IG-XL
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Specifications
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Mixed-Signal Cookbook
 Written in English
 Easy-to-use
IG-XL Program
 Create test programs
with adequate
commenting
User Interface
Software
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Requirements
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IG-XL
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Specifications
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Pin & Channel Maps
AC & DC Specs
Time Sets
Levels
Test Instances
Procedures
Flow Table
Software
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Detailed Design
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Data for IG-XL worksheets is gathered from the
datasheets for the DUT
Software
AC specs
Time Sets
Hardware
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Requirements
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Teradyne J750
Device Interface
Computer
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Specifications
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DIB
Daughterboard
Socket Converter
Hardware
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Detailed Design
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Create mapping from DIB to DUT
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Map DIB to Daughterboard
Map Daughterboard to Socket Converter
Map Socket Converter to DUT
Hardware
Hardware
Hardware
Testing
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Requirements
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Cookbook use
 Team Members
 Faculty Advisor
 Students
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Specifications
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Ease of manipulation for
different models
Ease of changing desired
calculations
Thank You
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Questions?