Data Sheet
TEST CIRCUITS
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
A/Y
VOD
B/Z
RL/2
RL/2 VOC
Figure 17. Differential Output Voltage
and Common-Mode Voltage Drivers
D
VCC
375Ω
VOD
RL
VCM =
–7V TO +12V
375Ω
Figure 18. Differential Output Voltage Drivers
with Varying Common-Mode Voltage
VID
R
0
VOL
IOL VOH
IOH
(+)
(–)
Figure 19. CMOS Output Voltage High and
CMOS Output Voltage Low Receivers
GENERATOR1
D
50Ω
VCC
CL
RL =
60Ω
OUT
CL = 15pF2
1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO = 50Ω.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
Figure 20. Driver Differential Output Delay and Transition Times
VOM
S1
D
GENERATOR1
50Ω
VCC
RL = 27Ω
OUT
CL = 15pF2
VOH + VOL
VOM =
2
≈ 1.5V
1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO = 50Ω.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
Figure 21. Driver Propagation Delays
0V OR 3V
S1
D
CL = 50pF2
OUT
RL = 110Ω
GENERATOR1
50Ω
VOH + VOL
VOM =
2
≈ 1.5V
1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO = 50Ω.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
Figure 22. Driver Enable and Disable Times (tPZH, tPSH, tPHZ)
Rev. E | Page 11 of 20