adm3085jr Analog Devices, Inc., adm3085jr Datasheet - Page 7

• Manufacturer Part Number: adm3085jr
• Description: Transceivers With Slew-rate-limiting And ?15kv Esd Protection
• Manufacturer: Analog Devices, Inc.

ADM3082/ADM3085/ADM3088 TEST CIRCUITS AND TIMING
REV. PrA 02/02
V
R O
DIFF
A
B
DI
V
-1 V
V
1 V
-V
O H
0V
5V
O L
V
0
Z
Y
Figure 2. Test Load for Driver Timing Tests
0
0
Figure 4. Receiver Propagation Delays
Figure 1. Driver DC Load Test Circuit
DI
Figure 3. Driver Propagation Delays
1.5V
V
0
10%
DE
V
0
/2
3V
Z
Y
t
RP HL
90%
t
DP LH
t
V
DR
O D
V
O D 2
t
S KE W
PRELIMINARY TECHNICAL DATA
V
DIFF
R
R
= |t
= V
R
DP LH
D IFF
Y
- V
-t
DP H L
Z
V
|
O C
t
DP H L
t
R P L H
t
DF
90%
C
C
L 1
L 2
10%
1 .5 V
– 7 –
Figure 7. Test Load for Receiver Enable/Disable Time Test
Figure 5. Test Load for Driver Enable/Disable Time Test
DE
4 -
R O
R O
Y , Z
Y , Z
V
V
V
Figure 8. Receiver Enable and Disable Delay Times
5V
0V
O L
O L
0 V
5 V
0 V
CC
Figure 6. Driver Enable and Disable Times
ADM3082/ADM3085/ADM3088
O UT P UT
UN D E R
T E S T
2.3V
2.3V
1.5V
1.5V
RO
t
t
t
DZL(S HD N)
DZH (SH DN )
R ZH(S HD N)
t
R Z L (S HD N )
, t
t
, t
DZH
, t
DZL
O U T PU T N O R M A LL Y L O W
O U T PU T N O R M A LL Y HIG H
O UT PU T NO R M A LL Y HIG H
R ZH
O UT PU T NO R M A LL Y L O W
RZ L
15p F
15p F
C
C
R L
R L
P O INT
P O INT
T E S T
T E S T
500
V
C C
1k
1k
V
S 2
S 1
C C
t
t
t
DL Z
DH Z
t
R HZ
RL Z
S 2
S 1
1.5V
V
V
V
V
1.5V
O H
O L
O H
O L
-0.5V
+0.5V
+0.5V
-0.5V