LTC1685CS8#PBF Linear Technology, LTC1685CS8#PBF Datasheet - Page 4

• 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

SWITCHING CHARACTERISTICS
LTC1685
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into the device pins are positive; all currents out of the
device pins are negative.
Note 3: All typicals are given for V
TYPICAL PERFORMANCE CHARACTERISTICS
4
46.5
46.0
45.5
45.0
44.5
44.0
43.5
43.0
42.0
42.5
30
25
20
15
10
5
0
10
5
Receiver Input CMRR
Receiver Propagation Delay
vs Load Capacitance
T
T
A
A
= 25 C
= 25 C
15
LOAD CAPACITANCE (pF)
U
1k
FREQUENCY (Hz)
25
35
100k
55
DD
W
= 5V, T
105
1M
1685 G01
1685 G04
A
U
205
= 25 C.
70
60
50
40
30
10
25
20
15
10
20
0
0
5
– 7
1
Supply Current vs Data Rate
Receiver Propagation Delay
vs Common Mode
BOTH DRIVER AND RECEIVER
ENABLED AND LOADED
T
T
A
A
– 4
= 25 C
= 25 C
RECEIVER COMMON MODE (V)
10
– 2
DATA RATE (Mbps)
0
20
2
Note 4: Guaranteed by design, but not tested.
Note 5: Short-circuit current does not represent output drive capability.
When the output detects a short-circuit condition, output drive current is
significantly reduced (from hundreds of mA to 20mA max) until the short
is removed.
4
30
6
8
40
10
1685 G02
1685 G05
12
50
25
20
15
10
57
56
54
53
52
50
59
58
55
51
5
0
–50
0.3
Supply Current vs Temperature
Receiver Propagation Delay
vs Input Overdrive
T
BOTH DRIVER AND RECEIVER
ENABLED AND LOADED
25Mbps DATA RATE
A
= 25 C
0.5
– 25
RECEIVER INPUT OVERDRIVE (V)
0.7
TEMPERATURE ( C)
0
1.0
25
1.25
50
1.5
2.0
75
1685 G06
1685 G03
2.5
100