ADM2481 Datasheet, PDF (11/20 Pages) Analog Devices – Half-Duplex, iCoupler Isolated RS-485 Transceiver

TEST CIRCUITS
R_L
V_OD
R_L
V_OC
Figure 16. Driver Voltage Measurement
ADM2481
0V OR 3V
DE IN
A
S1
DE
B
R_L
C_L
V_OUT
V_CC
S2
Figure 19. Driver Enable/Disable
375Ω
V_OD3
60Ω
375Ω
V_TEST
Figure 17. Driver Voltage Measurement over Common-Mode Range
A
B RE
V_OUT
C_L
Figure 20. Receiver Propagation Delay
A
C_L1
R_L
B
C_L2
Figure 18. Driver Propagation Delay
+1.5V
S1
–1.5V
RE IN
R_L
RE
C_L
V_OUT
Figure 21. Receiver Enable/Disable
V_CC
S2
Rev. 0 | Page 11 of 20