AD8159

Rev. A | Page 13 of 24

TEST CIRCUITS

All graphs were generated using the setup shown in Figure 32, unless otherwise specified.

0.25"

TERADYNE FR4 TEST BACKPLANE

DIFFERENTIAL STRIPLINE TRACES

8mm WIDE, 8mm SPACE, 8mm HEIGHT

TRACE LENGTHS = 6", 18", 24", 30" + 3" × 2 DAUGHTER CARDS

GBX4 TO SMA DAUGHTER CARDS

Figure 31. Test Backplane

A

B

C

C

A

B

AD8159

AC-COUPLED

EVALUATION BOARD

TEST BACKPLANE

50Ω

50Ω

HIGH SPEED

REAL-TIME

OSCILLOSCOPE

50Ω

50Ω CABLE

50Ω CABLE

50Ω CABLE

PATTERN

GENERATOR

DATA OUT

NOTES

1. SINGLE-ENDED REPRESENTATION

Figure 32. AC-Coupled Test Circuit

A

B

C

C

A

B

AD8159

DC-COUPLED

EVALUATION BOARD

TEST BACKPLANE

50Ω

50Ω

HIGH SPEED

REAL-TIME

OSCILLOSCOPE

50Ω

50Ω CABLE

50Ω CABLE

50Ω CABLE

PATTERN

GENERATOR

DATA OUT

NOTES

1. SINGLE-ENDED REPRESENTATION

Figure 33. DC-Coupled Test Circuit

Note: Test Circuit Used for Figure 28