Datasheet

2
LTC1690
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OD1
Differential Driver Output Voltage (Unloaded) I
O
= 0 ● V
CC
V
V
OD2
Differential Driver Output Voltage (with Load) R = 50Ω; (RS422) ● 2V
R = 22Ω or 27Ω; (RS485), Figure 1
● 1.5 5 V
V
OD3
Differential Driver Output Voltage (with Common Mode) V
TST
= –7V to 12V, Figure 2 1.5 5 V
∆V
OD
Change in Magnitude of Driver Differential Output R = 22Ω, 27Ω or 50Ω, Figure 1 ● 0.2 V
Voltage for Complementary Output States V
TST
= –7V to 12V, Figure 2
V
OC
Driver Common Mode Output Voltage R = 22Ω, 27Ω or 50Ω, Figure 1 ● 3V
∆|V
OC
| Change in Magnitude of Driver Common Mode R = 22Ω, 27Ω or 50Ω, Figure 1 ● 0.2 V
Output Voltage for Complementary Output States
V
IH
Input High Voltage Driver Input (D) ● 2V
V
IL
Input Low Voltage Driver Input (D) ● 0.8 V
I
IN1
Input Current Driver Input (D) ● ±2 µA
I
IN2
Input Current (A, B) V
CC
= 0V or 5.25V, V
IN
= 12V ● 1mA
V
CC
= 0V or 5.25V, V
IN
= –7V ● –0.8 mA
V
TH
Differential Input Threshold Voltage for Receiver –7V ≤ V
CM
≤ 12V ● –0.20 –0.01 V
∆V
TH
Receiver Input Hysteresis V
CM
= 0V ±30 mV
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Supply Voltage (V
CC
) .............................................. 6.5V
Driver Input Voltage..................... –0.3V to (V
CC
+ 0.3V)
Driver Output Voltages ................................. –7V to 10V
Receiver Input Voltages ......................................... ±14V
Receiver Output Voltage .............. –0.3V to (V
CC
+ 0.3V)
Junction Temperature........................................... 125°C
Operating Temperature Range
LTC1690C ........................................0°C ≤ T
A
≤ 70°C
LTC1690I..................................... –40°C ≤ T
A
≤ 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
(Note 1)
ORDER PART
NUMBER
MS8 PART MARKING
ORDER PART
NUMBER
LTC1690CMS8
LTDA
S8 PART MARKING
1690
1690I
LTC1690CN8
LTC1690IN8
LTC1690CS8
LTC1690IS8
Consult factory for Military Grade Parts
1
2
3
4
8
7
6
5
TOP VIEW
V
CC
R
D
GND
A
B
Z
Y
N8 PACKAGE
8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SO
D
R
T
JMAX
= 125°C, θ
JA
= 130°C/W (N)
T
JMAX
= 125°C, θ
JA
= 135°C/W (S)
1
2
3
4
8
7
6
5
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
V
CC
R
D
GND
A
B
Z
Y
T
JMAX
= 125°C, θ
JA
= 200°C/W
PACKAGE/ORDER INFORMATION
W
U
U
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V ±5% (Notes 2, 3)
DC ELECTRICAL CHARACTERISTICS