VCC
參數(shù)資料
型號: ADM3491ARZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 15/20頁
文件大?。?/td> 0K
描述: IC TXRX RS-485 HS FD 3.3 14SOIC
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: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 14-SOICN
包裝: 帶卷 (TR)
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
Data Sheet
Rev. E | Page 4 of 20
SPECIFICATIONS
VCC = 3.3 V ± 0.3 V, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Voltage (VOD)
2.0
V
RL = 100 Ω (RS-422), VCC = 3.3 V ± 5% (see Figure 17)
1.5
V
RL = 54 Ω (RS-485) (see Figure 17)
1.5
V
RL = 60 Ω (RS-485), VCC = 3.3 V (see Figure 18)
Δ |VOD| for Complementary Output States1
0.2
V
RL = 54 Ω or 100 Ω (see Figure 17)
Common-Mode Output Voltage (VOC)
3
V
RL = 54 Ω or 100 Ω (see Figure 17)
Δ |VOC| for Common-Mode Output Voltage1
0.2
V
RL = 54 Ω or 100 Ω (see Figure 17)
DRIVER INPUT LOGIC
CMOS Input Logic Threshold Low (VIL)
0.8
V
DE, DI, RE
CMOS Input Logic Threshold High (VIH)
2.0
V
DE, DI, RE
CMOS Logic Input Current (IIN1)
±2
μA
DE, DI, RE
1.0
mA
VIN = 12 V, DE = 0 V, VCC = 0 V or 3.6 V
Input Current—A, B (IIN2)
0.8
mA
VIN = 7 V, DE = 0 V, VCC = 0 V or 3.6 V
0.1
μA
VIN = 12 V, DE = 0 V, RE = 0 V, VCC = 0 V or 3.6 V,
ADM3491 only
Output Leakage—Y, Z (IO)
0.1
μA
VIN = 7 V, DE = 0 V, RE = 0 V, VCC = 0 V or 3.6 V,
ADM3491 only
0.01
μA
VIN = 12 V, DE = 0 V, RE = VCC, VCC = 0 V or 3.6 V,
ADM3491 only
Output Leakage (Y, Z) in Shutdown Mode (IO)
0.01
μA
VIN = 7 V, DE = 0 V, RE = VCC, VCC = 0 V or 3.6 V,
ADM3491 only
RECEIVER
Differential Input Threshold Voltage (VTH)
0.2
+0.2
V
7 V < VCM < +12 V
Input Hysteresis (Δ VTH)
50
mV
VCM = 0 V
CMOS Output Voltage High (VOH)
VCC – 0.4
V
IOUT = 1.5 mA, VID = 200 mV (see Figure 19)
CMOS Output Voltage Low (VOL)
0.4
V
IOUT = 2.5 mA, VID = 200 mV (see Figure 19)
Three-State Output Leakage Current (IOZR)
±1
μA
VCC = 3.6 V, 0 V ≤ VOUT ≤ VCC
Input Resistance (RIN)
12
7 V < VCM < +12 V
POWER SUPPLY CURRENT
1.1
2.2
mA
DE = VCC, RE = 0 V or VCC, no load, DI = 0 V or VCC
Supply Current (ICC)
0.95
1.9
mA
DE = 0 V, RE = 0 V, no load, DI = 0 V or VCC
Supply Current in Shutdown Mode (ISHDN)
0.002
1
μA
DE = 0 V, RE = VCC, DI = VCC or 0 V
250
mA
VOUT = 7 V
Driver Short-Circuit Output Current (IOSD)
250
mA
VOUT = 12 V
Receiver Short-Circuit Output Current (IOSR)
±8
±60
mA
0 V < VRO < VCC
1
VOD and VOC are the changes in VOD and VOC, respectively, when DI input changes state.
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