Receiver Output Voltages .............. –0.5V to V
CC
+ 0.5V
Operating Temperature Range
LTC1485C .............................................. 0°C to 70°C
LTC1485I ........................................... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec.) ................ 300°C
5 GND
S8 PACKAGE
N8 PACKAGE
8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC
T
JMAX
= 125°C,
θ
JA
= 100°C/W (N)
T
JMAX
= 150°C,
θ
JA
= 150°C/W (S)
ORDER INFORMATION
LEAD FREE FINISH
LTC1485CN8
LTC1485IN8
LTC1485CS8
LTC1485IS8
TAPE AND REEL
LTC1485CN8
LTC1485IN8
LTC1485CS8
LTC1485IS8
PART MARKING*
1485
1485I
1485
1485I
PACKAGE DESCRIPTION
8-Lead Plastic DIP
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic SOIC
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
1485fb
For more information
www.linear.com/LTC1485
LTC1485
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V (Notes 2, 3).
SYMBOL
V
OD1
V
OD2
∆V
OD
V
OC
∆|V
OC
|
V
INH
V
INL
I
IN1
I
IN2
V
TH
∆V
TH
V
OH
V
OL
I
OZR
I
CC
R
IN
I
OSD1
I
OSD2
I
OSR
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (With Load)
CONDITIONS
I
O
= 0
R = 50Ω, (RS422)
R = 27Ω, (RS485) (Figure 1)
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
1.8
1.7
DC ELECTRICAL CHARACTERISTICS
MIN
2
1.5
TYP
5
MAX
UNITS
V
V
V
V
V
V
V
5
0.2
3
0.2
Change in Magnitude of Driver Differential
R = 27Ω or R = 50Ω (Figure 1)
Output Voltage for Complementary Output States
Driver Common-Mode Output Voltage
R = 27Ω or R = 50Ω (Figure 1)
Change in Magnitude of Driver Common-Mode
R = 27Ω or R = 50Ω (Figure 1)
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
Receiver Output Low Voltage
Three-State Output Current at Receiver
Supply Current
DI, DE,
RE
DI, DE,
RE
DI, DE,
RE
V
CC
= 0V or 5.25V, V
IN
= 12V
V
CC
= 0V or 5.25V, V
IN
= −7V
–7V ≤ V
CM
≤ 12V
V
CM
= 0V
I
O
= –4mA, V
ID
= 0.2V
I
O
= 4mA, V
ID
= –0.2V
V
CC
= Max 0.4V ≤ V
O
≤ 2.4V
No Load; DI = GND or V
CC
Outputs Enabled
Outputs Disabled
–7V ≤ V
CM
≤ 12V
V
O
= –7V
V
O
= 10 V
0V ≤ V
O
≤ V
CC
2.0
0.8
±2
1.0
−0.8
−0.2
60
3.5
0.4
±1
2.3
2.3
V
µA
mA
mA
V
mV
V
V
µA
mA
mA
kΩ
mA
mA
mA
0.2
Receiver Input Resistance
Driver Short-Circuit Current, V
OUT
= High
Driver Short-Circuit Current, V
OUT
= Low
Receiver Short-Circuit Current
12
250
250
7
85
1485fb
For more information
www.linear.com/LTC1485
3
LTC1485
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V (Notes 2, 3).
SYMBOL
t
PLH
t
PHL
t
SKEW
t
r
, t
f
t
ZH
t
ZL
t
LZ
t
HZ
t
PLH
t
PHL
t
SKEW
t
ZL
t
ZH
t
LZ
t
HZ
PARAMETER
Driver Input to Output
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
Receiver Input to Output
| t
PLH
– t
PHL
|
Differential Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
CONDITIONS
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
C
L
= 100pF (Figures 4, 6) S2 Closed
C
L
= 100pF (Figures 4, 6) S1 Closed
C
L
= 15pF (Figures 4, 6) S1 Closed
C
L
= 15pF (Figures 4, 6) S2 Closed
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF (Figures 2, 7)
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF (Figures 2, 7)
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF (Figures 2, 7)
C
L
= 15pF (Figures 3, 8) S1 Closed
C
L
= 15pF (Figures 3, 8) S2 Closed
C
L
= 15pF (Figures 3, 8) S1 Closed
C
L
= 15pF (Figures 3, 8) S2 Closed
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
SWITCHING CHARACTERISTICS
MIN
10
10
TYP
30
30
4
MAX
50
50
10
25
70
70
70
70
50
55
15
45
45
45
45
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
15
40
40
40
40
15
20
25
30
5
30
30
30
30
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
All currents into device pins are positive. All currents out of device
pins are negative. All voltages are referenced to device ground unless
When using WEBENCH to design a TI MCU power supply, you can use the "FPGA/uP" in WEBENCH to simplify the design process. Step 1: Open the TI official website and enter the "FPGA/uP" option in WEBENCH....
[i=s]This post was last edited by dontium on 2015-1-23 12:44[/i] [url=item.taobao./item.htm?spm=a1z10.1.4.9.fb45ed&id=15906854335][img=240,240]hellodsp./bbs/data/attachment/mon/cf/134158aasyhansjkhyis...
I want a cadence crosstalk and reflection cabling performance simulation project. If anyone has it, please send it to my email: fanrui_bupt@yahoo.cn...
[size=4]As the title says, I want to use a processor to play videos in a memory card, and the display screen uses a TFT color screen. Which chip is best? [/size]...
In general, infrared communication uses infrared transmitters to send signals and integrated receivers to receive signals. This is a common method. However, in low-power design, to achieve real-time c...
150 kg robot "takes a beating" - robust lateral balance : https://training.eeworld.com.cn/course/1978[size=4][b]In the DARPA Robotics Challenge, a 150 kg robot became the only robot that was not knock...
From being a global leader to losing the market, Korean battery manufacturers have always wanted to regain the lost market and dignity, but facing Chinese battery manufacturers represented by CAT...[Details]
Wave soldering is a crucial electronic component soldering technique used in the production of a wide range of electronic devices, from home appliances to computers to avionics. The process is wide...[Details]
Is pure electric vehicles a false proposition for long-distance driving? At least from my personal perspective, based on current technological and infrastructure standards, I believe so. Below, I'l...[Details]
Topics: Bring Your Own Device (BYOD) trends; the impact of using employees' own mobile devices to control access to work facilities and equipment on information security; and ways to securely imple...[Details]
Based on a survey of more than ten intelligent robot companies, this article sorts out and analyzes the current development status of the intelligent industry and the challenges and differences it ...[Details]
On August 20th, Tiantai Robotics Co., Ltd., along with strategic partners including Shandong Future Robotics Technology Co., Ltd., Shandong Future Data Technology Co., Ltd., and Gangzai Robotics Gr...[Details]
On August 22, the National Energy Administration released the latest data, showing that by the end of July 2025, China's total number of electric vehicle charging infrastructure will reach 16.696 m...[Details]
With the continuous development of the industrial automation industry, we are seeing an increasing number of intelligent devices using flexible, efficient, and precise robotic arms to p...[Details]
Teletrac Navman has launched the Multi IQ dashcam, a cloud-based solution designed for large commercial vehicle operators. It connects up to five cameras to cover the vehicle's interior, sides, and...[Details]
The range of an electric vehicle is crucial to the driving experience, and range anxiety is a common headache when driving an electric vehicle. Although the latest electric vehicles can achieve a r...[Details]
Charging is an essential topic for electric vehicles. Batteries are a core component of new energy vehicles. So, what's the optimal charge level for electric vehicles? Based on current battery tech...[Details]
Summer is the peak season for buying and using air conditioners. Do you pay attention to the energy efficiency of your air conditioner? Did you buy a DC inverter air conditioner? Do you know the re...[Details]
In camera and display systems, the demand for high-performance and low-power data interfaces is driving continuous technological evolution. The evolution of MIPI D-PHY and MIPI C-PHY clearly ...[Details]
Today,
the Intel®
Universal
Quick Connector (UQD) Interchangeability Alliance was officially established
. At the inaugural ceremony, Intel and its first certified partners—Invicta...[Details]
As a core component of electric vehicles, power batteries, like batteries for other electronic products, inevitably experience degradation after a certain period of use due to their characteristics...[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
