参数资料
型号: ISL5120IH-T
厂商: INTERSIL CORP
元件分类: 运动控制电子
英文描述: Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
中文描述: DUAL 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO8
封装: PLASTIC, SC-74, SOT-23, 8 PIN
文件页数: 9/15页
文件大小: 573K
代理商: ISL5120IH-T
9
FN6022.6
November 17, 2004
Detailed Description
The ISL5120–ISL5123 bidirectional, dual analog switches
offer precise switching capability from a single 2.7V to 12V
supply with low on-resistance (19
) and high speed
operation (t
ON
= 28ns, t
OFF
= 20ns). The devices are
especially well suited to portable battery powered equipment
thanks to the low operating supply voltage (2.7V), low power
consumption (5
μ
W), low leakage currents (100pA max), and
the tiny SOT-23 packaging. High frequency applications also
benefit from the wide bandwidth, and the very high off
isolation and crosstalk rejection.
Supply Sequencing And Overvoltage Protection
With any CMOS device, proper power supply sequencing is
required to protect the device from excessive input currents
which might permanently damage the IC. All I/O pins contain
ESD protection diodes from the pin to V+ and GND (See
Figure 8). To prevent forward biasing these diodes, V+ must
be applied before any input signals, and input signal
voltages must remain between V+ and GND. If these
conditions cannot be guaranteed, then one of the following
two protection methods should be employed.
Logic inputs can easily be protected by adding a 1k
resistor in series with the input (See Figure 8). The resistor
limits the input current below the threshold that produces
permanent damage, and the sub-microamp input current
FIGURE 4. OFF ISOLATION TEST CIRCUIT
FIGURE 5. R
ON
TEST CIRCUIT
FIGURE 6. CROSSTALK TEST CIRCUIT
FIGURE 7. CAPACITANCE TEST CIRCUIT
Test Circuits and Waveforms
(Continued)
ANALYZER
R
L
SIGNAL
GENERATOR
V+
C
0V or V
INH
NO or NC
COM
IN
X
GND
V+
C
0.8V or V
INH
NO or NC
COM
IN
GND
V
NX
V
1
R
ON
= V
1
/1mA
1mA
0V or 2.4V
ANALYZER
V+
C
NO1 or NC1
SIGNAL
GENERATOR
R
L
GND
IN
1
COM1
IN
2
50
0V or V
INH
NC
COM2
NO2 or NC2
V+
C
GND
NO or NC
COM
IN
X
IMPEDANCE
ANALYZER
0V or V
INH
ISL5120, ISL5121, ISL5122, ISL5123
相关PDF资料
PDF描述
ISL5120IB Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
ISL5120IBZ Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
ISL5121CB Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
ISL5121CBZ Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
ISL5123CB Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
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