LTC1685CS8#PBF Linear Technology, LTC1685CS8#PBF Datasheet - Page 6

• Manufacturer Part Number: LTC1685CS8#PBF
• Description: IC TXRX RS485 PREC DELAY 8-SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1685CS8#PBF

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FU CTIO TABLES
LTC1685
Transmitting
6
TEST CIRCUITS
RE
X
X
X
X
DI
U
INPUTS
3V
Figure 3. Driver/Receiver Timing Test Circuit
DE
DE
1
1
0
1
A
B
U
Figure 1. Driver DC Test Load
DI
1
0
X
X
A
B
R
DIFF
V
OD
CONDITION
No Fault
No Fault
LINE
Fault
X
C
C
R
R
L1
L2
1685 F01
V
OC
A
B
10mA Current Source
Hi-Z
B
0
1
OUTPUTS
RE
15pF
RO
Hi-Z
A
1
0
1685 F03
Receiving
RE
0
0
0
0
1
INPUTS
RECEIVER
UNDER TEST
OUTPUT
OUTPUT
DE
X
0
0
0
0
Figure 4. Driver Timing Test Load #2
TEST POINT
Figure 2. Driver DC Test Load
Inputs Shorted Together
C
15pF
L
C
A = B = – 7V to 12V
500
L
Inputs Open
– 300mV
A – B
300mV
1k
X
S1
S2
S1
S2
1k
1685 F04
V
1685 F02
OUTPUT
V
DD
Hi-Z
DD
RO
1
0
1
1