參數(shù)資料
型號: ISL84762IR-T
廠商: INTERSIL CORP
元件分類: 運動控制電子
英文描述: Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
中文描述: DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10
封裝: 3 X 3 MM, PLASTIC, MO-229WEED-3, TDFN-10
文件頁數(shù): 6/11頁
文件大小: 403K
代理商: ISL84762IR-T
6
FN6105.0
November 30, 2004
Detailed Description
The ISL84762 is a bidirectional, dual single pole/double
throw (SPDT) analog switch that offers precise switching
capability from a single 1.65V to 3.6V supply with low on-
resistance (0.39
) and high speed operation (t
ON
= 14ns,
t
OFF
= 6ns). The device is especially well suited for portable
battery powered equipment due to its low operating supply
voltage (1.65V), low power consumption (2.7
μ
W max), low
leakage currents (60nA max), and the tiny Thin DFN and
MSOP packages. The ultra low on-resistance and Ron
flatness provide very low insertion loss and distortion to
applications that require signal reproduction.
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 to GND (see
Figure 8). To prevent forward biasing these diodes, V+ must
be applied before any input signals, and the 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
produces an insignificant voltage drop during normal
operation.
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+
NO or NC
COM
IN
GND
Signal direction through switch is reversed, worst case values
are recorded. Repeat test for all switches.
V+
C
0V or V+
NO or NC
COM
IN
GND
V
NX
V
1
R
ON
= V
1
/100mA
100mA
Repeat test for all switches.
0V or V+
ANALYZER
V+
C
NO or NC
SIGNAL
GENERATOR
R
L
GND
IN
1
COM
50
N.C.
COM
NC or NO
Signal direction through switch is reversed, worst case values
are recorded. Repeat test for all switches.
V+
C
GND
NO or NC
COM
IN
IMPEDANCE
ANALYZER
0V or V+
Repeat test for all switches.
ISL84762
相關PDF資料
PDF描述
ISL84762IU-T Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
ISL84762 Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
ISL84762IR Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
ISL84762IRZ Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
ISL84762IRZ-T Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
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