LTC1686 Linear Technology, LTC1686 Datasheet - Page 2

• Manufacturer Part Number: LTC1686
• Description: 52Mbps Precision Delay RS485 Fail-Safe Transceivers
• Manufacturer: Linear Technology

A
LTC1686/LTC1687
(Note 1)
Supply Voltage (V
Control Input Currents .................... – 100mA to 100mA
Control Input Voltages .................. – 0.5V to V
Driver Input Voltages .................... – 0.5V to V
Driver Output Voltages ................................. + 12V/– 7V
Receiver Input Voltages ................................ + 12V/– 7V
Receiver Output Voltages ............. – 0.5V to V
Receiver Input Differential ...................................... 10V
PACKAGE/ORDER I FOR ATIO
DC ELECTRICAL CHARACTERISTICS
2
SYMBOL
V
V
V
V
V
I
I
V
V
Consult factory for Industrial and Military grade parts.
IN1
IN2
OD1
OD2
OC
IH
IL
TH
OH
V
V
BSOLUTE
OD
TH
V
OC
GND
V
DD
T
R
D
JMAX
PARAMETER
Differential Driver Output (Unloaded)
Differential Driver Output (With Load)
Change in Magnitude of Driver Differential
Output Voltage for Complementary
Output States
Driver Common Mode Output Voltage
Change in Magnitude of Driver Common
Mode Output Voltage for Complementary
Output States
Input High Voltage
Input Low Voltage
Input Current
Input Current (A, B)
Differential Input Threshold Voltage
for Receiver
Receiver Input Hysteresis
Receiver Output High Voltage
1
2
3
4
8-LEAD PLASTIC SO
= 125 C,
S8 PACKAGE
TOP VIEW
D
R
JA
DD
W
= 150 C/ W
) .............................................. 10V
A
8
7
6
5
XI
A
B
Z
Y
W
U
U
W
S8 PART MARKING
R
ORDER PART
LTC1686CS8
A
NUMBER
W
TI
1686
CONDITIONS
I
R = 50 (RS422)
R = 27 (RS485), Figure 1
R = 27 or 50 , Figure 1
R = 27 or 50 , V
R = 27 or 50 , Figure 1
D, DE, RE
D, DE, RE
D, DE, RE
V
V
– 7V V
V
I
OUT
OUT
U
A
A
CM
, V
, V
DD
DD
DD
G
= 0
= 0V
= – 4mA, V
B
B
= 12V, V
= – 7V, V
+ 0.5V
+ 0.5V
+ 0.5V
S
CM
U
12V
DD
ID
DD
V
DD
= 300mV
= 0V or 5.25V
= 0V or 5.25V
DD
Driver Short-Circuit Duration
Receiver Short-Circuit Duration
Operating Temperature Range .................... 0 C to 70 C
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
= 5V 5% unless otherwise noted (Notes 2, 3).
= 5V, Figure 1
(V
(V
GND
GND
OUT
OUT
NC
RE
DE
R
D
T
JMAX
1
2
3
4
5
6
7
: – 7V to 10V)...................................... Indefinite
: 0V to V
14-LEAD PLASTIC SO
= 125 C,
S PACKAGE
TOP VIEW
R
D
JA
DD
= 90 C/ W
) ........................................ Indefinite
14
13
12
11
10
9
8
Y
V
NC
A
B
Z
NC
DD
– 500
– 0.3
MIN
2.0
1.5
3.5
– 1
2
2
TYP
4.8
25
ORDER PART
LTC1687CS
NUMBER
MAX
V
V
500
0.2
0.2
0.8
0.3
DD
DD
3
1
UNITS
mV
V
V
V
V
V
V
V
V
A
A
A
V
V