VCC = 3.3 V ± 0.3 V, C1 to" />
參數(shù)資料
型號(hào): ADM3222ARS
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 0K
描述: IC TX/RX RS-232 3.3V W/SD 20SSOP
標(biāo)準(zhǔn)包裝: 66
類(lèi)型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 2/2
規(guī)程: RS232
電源電壓: 3 V ~ 5.5 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 管件
ADM3202/ADM3222/ADM1385
Rev. E | Page 3 of 16
SPECIFICATIONS
VCC = 3.3 V ± 0.3 V, C1 to C4 = 0.1 μF. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC CHARACTERISTICS
Operating Voltage Range
3.0
3.3
5.5
V
VCC Power Supply Current
1.3
3
mA
No load
8
12
mA
RL = 3 kΩ to GND
Shutdown Supply Current
0.01
0.5
μA
LOGIC
Input Logic Threshold Low, VINL
0.8
V
TIN
Input Logic Threshold High, VINH
2.0
V
TIN
CMOS Output Voltage Low, VOL
0.4
V
IOUT = 1.6 mA
CMOS Output Voltage High, VOH
VCC 0.6
V
IOUT = 1 mA
Logic Pull-Up Current
5
10
μA
TIN = GND to VCC1
Output Leakage Current
±10
μA
Receivers disabled
RS-232 RECEIVER
EIA-232 Input Voltage Range
30
+30
V
EIA-232 Input Threshold Low
0.6
1.2
V
EIA-232 Input Threshold High
1.6
2.4
V
EIA-232 Input Hysteresis
0.4
V
EIA-232 Input Resistance
3
5
7
RS-232 TRANSMITTER
Output Voltage Swing (RS-232)
±5.0
±5.2
V
VCC = 3.3 V, all transmitter outputs loaded with 3 kΩ to ground
Output Voltage Swing (RS-562)
±3.7
V
VCC = 3.0 V
Transmitter Output Resistance
300
Ω
VCC = 0 V, VOUT = ±2 V
RS-232 Output Short-Circuit Current
±15
mA
Output Leakage Current
±25
μA
SD = low, VOUT = 12 V
TIMING CHARACTERISTICS
Maximum Data Rate
460
kbps
VCC = 3.3 V, RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, one
Tx switching
Receiver Propagation Delay
TPHL
0.4
1
μs
TPLH
0.4
1
μs
Transmitter Propagation Delay
0.3
1.2
μs
RL = 3 kΩ, CL = 1000 pF
Receiver Output Enable Time
200
ns
Receiver Output Disable Time
200
ns
Transmitter Skew
30
ns
Receiver Skew
300
ns
Transition Region Slew Rate
5.5
10
30
V/μs
Measured from +3 V to 3 V or 3 V to +3 V, VCC = +3.3 V;
RL = 3 kΩ, CL = 1000 pF, TA = 25°C
1 ADM1385: Input leakage current typically 10 μA when TIN = GND.
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