ADM3070E/ADM3071E/ADM3072E/ADM3073E/ADM3074E/ADM3075E/ADM3076E/ADM3077E/ADM3078E

Rev. F | Page 10 of 20

TEST CIRCUITS AND SWITCHING CHARACTERISTICS

VOC

RL/2

RL/2

Z

Y

VOD

Figure 7. Driver DC Test Load

DI

DE

Y

Z

3V

CL

RL

VOD

Figure 8. Driver Timing Test Circuit

VCC

tDPLH

tDR

tDF

tDPHL

0V

VCC/2

1/2VO

1/2VO

DI

Z

Y

VO

+VO

–VO

VDIFF

10%

90%

90%

10%

VDIFF = V (Y) – V (Z)

tDSKEW = |tDPLH – tDPHL|

0V

Figure 9. Driver Propagation Delays

OUT

S1

0V OR 3V

GENERATOR

RL

500Ω

50Ω

DE

OUT

CL

50pF

+

tDZH, tDZH(SHDN)

VOM = (0 + VOH)/2

tDHZ

VCC/2

0.25V

VCC

0V

VOH

0V

D

Figure 10. Driver Enable and Disable Times (tDHZ, tDZH, tDZH(SHDN))

OUT

S1

VCC

0V OR 3V

GENERATOR

RL

500Ω

50Ω

DE

OUT

CL

50pF

+

tDZL, tDZL(SHDN)

VOM = (VOL + VCC)/2

tDLZ

VCC/2

0.25V

VCC

VCC

0V

VOL

D

Figure 11. Driver Enable and Disable Times (tDZL, tDLZ, tDZL(SHDN))

VID

ATE

B

R

RECEIVER

OUTPUT

A

Figure 12. Receiver Propagation Delay Test Circuit

NOTES

1. THE RISE TIME AND FALL TIME OF INPUT A AND INPUT B < 4ns.

A

B

RO

VOL

VOH

1.5V

+1V

–1V

tRPHL

tRPLH

Figure 13. Receiver Propagation Delays