參數(shù)資料
型號(hào)： EVAL-ADM3251EEBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 10/16頁(yè)
文件大?。?/td> 0K
描述： BOARD EVALUATION ADM3251
產(chǎn)品培訓(xùn)模塊： Fully Isolated ADM3251E RS-232 Transceiver
標(biāo)準(zhǔn)包裝： 1
系列： isoPower®
主要目的： 接口，隔離式，RS-232
嵌入式： 否
已用 IC / 零件： ADM3251E
主要屬性： 2.5 kV 隔離式（電源和數(shù)據(jù)）RS-232 收發(fā)器，隔離式 DC/DC 轉(zhuǎn)換器
已供物品： 板，IC 樣品
產(chǎn)品目錄頁(yè)面： 790 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： ADM3251EARWZ-ND - IC TXRX RS232 ISOLATED 20-SOIC
ADM3251EARWZ-REELDKR-ND - IC LINE DVR/RCVR RS232 20-SOIC
ADM3251EARWZ-REELCT-ND - IC LINE DVR/RCVR RS232 20-SOIC
ADM3251EARWZ-REELTR-ND - IC LINE DVR/RCVR RS232 20-SOIC
Data Sheet
ADM3251E
SPECIFICATIONS
All voltages are relative to their respective ground; all minimum/maximum specifications apply over the entire recommended operating
range; TA = 25°C and VCC = 5.0 V (dc-to-dc converter enabled), unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC CHARACTERISTICS
VCC Operating Voltage Range
4.5
5.5
V
DC-to-DC Converter Enable Threshold, VCC(ENABLE)1
4.5
V
DC-to-DC Converter Disable Threshold, VCC(DISABLE)1
3.7
V
DC-to-DC Converter Enabled
Input Supply Current, ICC(ENABLE)
110
mA
VCC = 5.5 V, no load
145
mA
VCC = 5.5 V, RL = 3 k
VISO Output2
5.0
V
IISO = 0 A
LOGIC
Transmitter Input, TIN
Logic Input Current, ITIN
10
+0.01
+10
μA
Logic Low Input Threshold, VTINL
0.3 VCC
V
Logic High Input Threshold, VTINH
0.7 VCC
V
Receiver Output, ROUT
Logic High Output, VROUTH
VCC 0.1
VCC
V
IROUTH = 20 μA
VCC 0.5
VCC 0.3
V
IROUTH = 4 mA
Logic Low Output, VROUTL
0.0
0.1
V
IROUTH = 20 μA
0.3
0.4
V
IROUTH = 4 mA
RS-232
Receiver, RIN
EIA-232 Input Voltage Range3
30
+30
V
EIA-232 Input Threshold Low
0.6
2.0
V
EIA-232 Input Threshold High
2.1
2.4
V
EIA-232 Input Hysteresis
0.1
V
EIA-232 Input Resistance
3
5
7
k
Transmitter, TOUT
Output Voltage Swing (RS-232)
±5
±5.7
V
RL = 3 k to GND
Transmitter Output Resistance
300
VISO = 0 V
Output Short-Circuit Current (RS-232)
±12
mA
TIMING CHARACTERISTICS
Maximum Data Rate
460
kbps
RL = 3 k to 7 k, CL = 50 pF to 1000 pF
Receiver Propagation Delay
tPHL
190
ns
tPLH
135
ns
Transmitter Propagation Delay
650
ns
RL = 3 k, CL = 1000 pF
Transmitter Skew
80
ns
Receiver Skew
70
ns
Transition Region Slew Rate3
5.5
10
30
V/μs
+3 V to 3 V or 3 V to +3 V, VCC = +3.3 V,
RL = 3 k, CL = 1000 pF, TA = 25°C
AC SPECIFICATIONS
Output Rise/Fall Time, tR/tF (10% to 90%)
2.3
ns
CL = 15 pF, CMOS signal levels
Common-Mode Transient Immunity at Logic High Output4
25
kV/μs
VCM = 1 kV, transient magnitude = 800 V
Common-Mode Transient Immunity at Logic Low Output4
25
kV/μs
VCM = 1 kV, transient magnitude = 800 V
ESD PROTECTION (RIN And TOUT PINS)
±15
kV
Human body model air discharge
±8
kV
Human body model contact discharge
1
Enable/disable threshold is the VCC voltage at which the internal dc-to-dc converter is enabled/disabled.
2
To maintain data sheet specifications, do not draw current from VISO.
3
Guaranteed by design.
4
VCM is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. VCM is the common-mode potential
difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The common-mode voltage slew rates
apply to both rising and falling common-mode voltage edges.
Rev. G | Page 3 of 16
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