LTC1687IS#TR Linear Technology, LTC1687IS#TR Datasheet - Page 4

• Manufacturer Part Number: LTC1687IS#TR
• Description: IC TXRX RS485 PREC DELAY 14SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1687IS#TR

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SWITCHING CHARACTERISTICS
LTC1686/LTC1687
SYMBOL
The
temperature range.
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.
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
denotes specifications which apply over the full operating
10
5
Receiver Input CMRR
Receiver Propagation Delay
vs Load Capacitance
T
T
A
A
= 25 C
= 25 C
PARAMETER
Minimum Input Pulse Width
Maximum Data Rate
Maximum Input Frequency
15
LOAD CAPACITANCE (pF)
U
1k
FREQUENCY (Hz)
25
35
100k
55
W
105
1686/87 G01
1M
1686/87 G04
U
205
CONDITIONS
V
V
V
70
60
50
40
30
10
25
20
15
10
20
DD
DD
DD
0
0
5
– 7
1
Supply Current vs Data Rate
Receiver Propagation Delay
vs Common Mode
= 5V 5% (Note 4)
= 5V 5% (Note 4)
= 5V 5% (Note 4)
BOTH DRIVER AND RECEIVER
ENABLED AND LOADED
T
T
A
A
– 4
= 25 C
= 25 C
RECEIVER COMMON MODE (V)
V
10
– 2
DD
DATA RATE (Mbps)
= 5V, unless otherwise noted (Notes 2, 3).
0
20
2
Note 3: All typicals are given for V
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
LTC1686C/LTC1687C
LTC1686I/LTC1687I
LTC1686C/LTC1687C
LTC1686I/LTC1687I
LTC1686C/LTC1687C
LTC1686I/LTC1687I
8
40
1686/87 G02
1686/87 G05
10
50
12
25
20
15
10
58
57
56
55
54
53
52
50
51
5
0
– 25
0.3
Supply Current vs Temperature
Receiver Propagation Delay
vs Input Overdrive
DD
T
BOTH DRIVER AND RECEIVER
ENABLED AND LOADED
25Mbps DATA RATE
A
MIN
= 5V, T
= 25 C
52
40
26
20
0.5
RECEIVER INPUT OVERDRIVE (V)
0
0.7
A
TEMPERATURE ( C)
= 25 C.
TYP
17
20
60
50
30
25
25
1.0
1.25
50
MAX
19.2
25
1.5
75
2.0
1686/87 G06
1686/87 G03
UNITS
Mbps
Mbps
MHz
MHz
2.5
100
ns
ns