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參數(shù)資料
| 型號： | ADM485JRZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS-485 5V 5MBPS 8SOIC |
| 標準包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
ADM485
Rev. F | Page 3 of 16
SPECIFICATIONS
VCC = 5 V ± 5%, all specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Voltage, VOD
5.0
V
R = ∞, see Figure 20
2.0
5.0
V
1.5
5.0
V
R = 27 Ω (RS-485), see Figure 20
VOD3
1.5
5.0
V
Δ|VOD| for Complementary Output States
0.2
V
R = 27 Ω or 50 Ω, see Figure 20
Common-Mode Output Voltage, VOC
3
V
R = 27 Ω or 50 Ω, see Figure 20
Δ|VOD| for Complementary Output States
0.2
V
R = 27 Ω or 50 Ω
Output Short-Circuit Current, VOUT = High
35
250
mA
7 V ≤ VO ≤ +12 V
Output Short-Circuit Current, VOUT = Low
35
250
mA
7 V ≤ VO ≤ +12 V
CMOS Input Logic Threshold Low, VINL
0.8
V
CMOS Input Logic Threshold High, VINH
2.0
V
Logic Input Current (DE, DI)
±1.0
μA
RECEIVER
Differential Input Threshold Voltage, VTH
0.2
+0.2
V
7 V ≤ VCM ≤ +12 V
Input Voltage Hysteresis, ΔVTH
70
mV
VCM = 0 V
Input Resistance
12
kΩ
7 V ≤ VCM ≤ +12 V
Input Current (A, B)
1
mA
VIN = 12 V
–0.8
mA
VIN = 7 V
CMOS Input Logic Threshold Low, VINL
0.8
V
CMOS Input Logic Threshold High, VINH
2.0
V
Logic Enable Input Current (RE)
±1
μA
CMOS Output Voltage Low, VOL
0.4
V
IOUT = 4.0 mA
CMOS Output Voltage High, VOH
4.0
V
IOUT = 4.0 mA
Short-Circuit Output Current
7
85
mA
VOUT = GND or VCC
Three-State Output Leakage Current
±1.0
μA
0.4 V ≤ VOUT ≤ 2.4 V
POWER SUPPLY CURRENT
ICC, Outputs Enabled
1.0
2.2
mA
Digital inputs = GND or VCC
ICC, Outputs Disabled
0.6
1
mA
Digital inputs = GND or VCC
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