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参数资料
| 型号： | LTC2863IS8-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 22/26页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCEIVER RS485 8-SOIC |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
LTC2862/LTC2863/
LTC2864/LTC2865
5
2862345fc
For more information www.linear.com/LTC2862
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ICCTRS
Supply Current with Both Driver and
Receiver Enabled (LTC2862-2, LTC2863-2,
LTC2864-2, LTC2865 with SLO Low)
No Load, DE = VCC = VL, RE = 0V
l
3.3
8
mA
Driver
|VOD|
Differential Driver Output Voltage
R = ∞ (Figure 1)
l
1.5
VCC
V
R = 27Ω (Figure 1)
l
1.5
5
V
R = 50Ω (Figure 1)
l
2
VCC
V
Δ|VOD|
Change in Magnitude of Driver Differential
Output Voltage
R = 27Ω or 50Ω (Figure 1)
l
0.2
V
VOC
Driver Common-Mode Output Voltage
R = 27Ω or 50Ω (Figure 1)
l
3
V
Δ|VOC|
Change in Magnitude of Driver
Common-Mode Output Voltage
R = 27Ω or 50Ω (Figure 1)
l
0.2
V
IOSD
Maximum Driver Short-Circuit Current
–60V ≤ (Y or Z) ≤ 60V (Figure 2)
l
±150
±250
mA
IOZD
Driver Three-State (High Impedance)
Output Current on Y and Z
DE = 0V, VCC = 0V or 3.3V, VO = –25V,
25V
l
±30
A
Receiver
IIN
Receiver Input Current (A,B)
(C-, I-Grade LTC2863, LTC2864, LTC2865)
VCC = 0V or 3.3V, VIN = 12V (Figure 3)
l
125
A
VCC = 0V or 3.3V, VIN = –7V (Figure 3)
l
–100
Receiver Input Current (A,B)
(H-, MP-Grade LTC2863, LTC2864,
LTC2865; C-, I-, H-, MP-Grade LTC2862)
VCC = 0V or 3.3V, VIN = 12V (Figure 3)
l
143
A
VCC = 0V or 3.3V, VIN = –7V (Figure 3)
l
–100
RIN
Receiver Input Resistance
0 ≤ VCC ≤ 5.5V, VIN = –25V or 25V
(Figure 3)
112
kΩ
VCM
Receiver Common Mode Input Voltage
(A + B)/2
l
–25
25
V
VTH
Differential Input Signal Threshold
Voltage (A – B)
–25V ≤ VCM ≤ 25V
l
±200
mV
ΔVTH
Differential Input Signal Hysteresis
VCM = 0V
150
mV
Differential Input Failsafe Threshold Voltage –25V ≤ VCM ≤ 25V
l
–200
–50
0
mV
Differential Input Failsafe Hysteresis
VCM = 0V
25
mV
VOH
Receiver Output High Voltage
I(RO) = –3mA (Sourcing)
VL ≥ 2.25V, I(RO) = –3mA (LTC2865)
VL < 2.25V, I(RO) = –2mA (LTC2865)
l
VCC –0.4V
VL –0.4V
V
VOL
Receiver Output Low Voltage
I(RO) = 3mA (Sinking)
l
0.4
V
IOZR
Receiver Three-State (High Impedance)
Output Current on RO
RE = High, RO = 0V or VCC
RO = 0V or VL (LTC2865)
l
±5
A
IOSR
Receiver Short-Circuit Current
RE = Low, RO = 0V or VCC
RO = 0V or VL (LTC2865)
l
±20
mA
Logic
(LTC2862, LTC2863, LTC2864)
VTH
Input Threshold Voltage (DE, DI, RE)
3.0 ≤ VCC ≤ 5.5V
l
0.33 VCC
0.67 VCC
V
IINL
Logic Input Current (DE, DI, RE)
0 ≤ VIN ≤ VCC
l
0
±5
A
Logic
(LTC2865)
VTH
Input Threshold Voltage (DE, DI, RE, SLO)
1.65V ≤ VL ≤ 5.5V
l
0.33 VL
0.67 VL
V
IINL
Logic Input Current (DE, DI, RE, SLO)
0 ≤ VIN ≤ VL
l
0
±5
A
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = VL = 3.3V unless otherwise noted. (Note 2)
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