MAX1482_06 Datasheet, PDF (6/14 Pages) Maxim Integrated Products – 20®, 1⁄8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers

20µA, ¹â„₈-Unit-Load, Slew-Rate-Limited
RS-485 Transceivers
_________________________________________________________________Test Circuits
Y
V_OD
Z
R
R
V_OC
RECEIVER ^{TEST POINT}
OUTPUT
C_RL
15pF
1k
1k
V_CC
S1
S2
Figure 1. Driver DC Test Load
Figure 2. Receiver Timing Test Load
3V
DE
DI
Y
V_ID
Z
C_L1
A
R_DIFF
B
C_L2
RO
RE
OUTPUT
UNDER TEST
500Ω
C_L
V_CC
S1
S2
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load
6 _______________________________________________________________________________________