參數(shù)資料
型號(hào)： DG418BDY
廠商： Vishay Intertechnology,Inc.
英文描述： Precision CMOS Analog Switches
中文描述： 精密CMOS模擬開關(guān)
文件頁數(shù)： 10/10頁
文件大?。?/td> 153K
代理商： DG418BDY
DG417/418/419
10
Siliconix
S-52880—Rev. D, 28-Apr-97
Applications (Cont’d)
Micropower UPS Transfer Switch
When V
CC
drops to 3.3 V, the DG417 changes states,
closing SW
1
and connecting the backup cell, as shown in
Figure 11. D
1
prevents current from leaking back towards
the rest of the circuit. Current consumption by the CMOS
analog switch is around 100 pA; this ensures that most of the
power available is applied to the memory, where it is really
needed. In the stand-by mode, hundreds of A are sufficient
to retain memory data.
When the 5-V supply comes back up, the resistor divider
senses the presence of at least 3.5 V, and causes a new
change of state in the analog switch, restoring normal
operation.
Programmable Gain Amplifier
The DG419, as shown in Figure 12, allows accurate gain
selection in a small package. Switching into virtual ground
reduces distortion caused by r
DS(on)
variation as a function
of analog signal amplitude.
GaAs FET Driver
The DG419, as shown in Figure 13 may be used as a GaAs
FET driver. It translates a TTL control signal into –8-V, 0-V
level outputs to drive the gate.
GND
IN
D
V–
3 V Li Cell
Memory
DG417
(5 V)
V+
S
+
–
SW
1
V
L
V
SENSE
R
1
453 k
D
1
V
CC
Figure 11.
Micropower UPS Circuit
R
2
383 k
DG419
+
–
IN
R
1
R
2
V
IN
V
OUT
Figure 12.
Programmable Gain Amplifier
D
S
1
S
2
DG419
5 V
V
OUT
D
V–
GND
S
2
S
1
V
L
V+
+5 V
–8 V
GaAs FET
Figure 13.
GaAs FET Driver
相關(guān)PDF資料
PDF描述
DG418BDJ Precision CMOS Analog Switches
DG417DY Improved, SPST/SPDT Analog Switches
DG418 Improved, SPST/SPDT Analog Switches
DG418AK Improved, SPST/SPDT Analog Switches
DG418CJ Improved, SPST/SPDT Analog Switches
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DG418BDY-E3 功能描述:模擬開關(guān) IC Single SPST 20/25V RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
DG418BDY-T1 功能描述:模擬開關(guān) IC Quad Mono CMOS SPST RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
DG418BDY-T1-E3 功能描述:模擬開關(guān) IC Quad Mono CMOS SPST RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
DG418C/D 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
DG418CJ 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
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