參數(shù)資料
型號(hào)： TLV4112CDGN
元件分類： TVS-瞬態(tài)抑制二極管
英文描述： Transient Voltage Suppressor Diodes
中文描述： 電壓反饋運(yùn)算放大器
文件頁(yè)數(shù)： 12/22頁(yè)
文件大?。?/td> 388K
代理商： TLV4112CDGN
TLV4110, TLV4111, TLV4112, TLV4113
FAMILY OF HIGH OUTPUT DRIVE OPERATIONAL
AMPLIFIERS WITH SHUTDOWN
SLOS289B – DECEMBER 1999 – REVISED DECEMBER 2000
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
shutdown function
Two members of the TLV411x family (TLV4110/3) have a shutdown terminal for conserving battery life in
portable applications. When the shutdown terminal is tied low, the supply current is reduced to just nano amps
per channel, the amplifier is disabled, and the outputs are placed in a high impedance mode. In order to save
power in shutdown mode, an external pullup resistor is required, thererfore, to enable the amplifier the shutdown
terminal must be pulled high. When the shutdown terminal is left floating, care should be taken to ensure that
parasitic leakage current at the shutdown terminal does not inadvertently place the operational amplifier into
shutdown.
driving a capacitive load
When the amplifier is configured in this manner, capacitive loading directly on the output will decrease the
device’s phase margin leading to high frequency ringing or oscillations. Therefore, for capacitive loads of greater
than 1 nF, it is recommended that a resistor be placed in series (R
NULL
) with the output of the amplifier, as shown
in Figure 24. A maximum value of 20
should work well for most applications.
CLOAD
RF
Input
Output
RG
RNULL
+
–
RL
CL
RF
Input
Output
RG
RNULL
+
–
RL
Snubber
C
(a)
(b)
Figure 27. Driving a Capacitive Load
offset voltage
The output offset voltage, (V
OO
) is the sum of the input offset voltage (V
IO
) and both input bias currents (I
IB
) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset
voltage:
VOO
VIO
1
RF
RG
IIB
RS
1
RF
RG
IIB–RF
+
–
VI
+
RG
RS
RF
IIB–
VO
IIB+
Figure 28. Output Offset Voltage Model
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV4112CDGNG4 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
TLV4112CDGNR 制造商:Rochester Electronics LLC 功能描述:- Bulk
TLV4112CDR 制造商:Rochester Electronics LLC 功能描述:HIGH DRIVE,RRO,DUAL OP AMP - Bulk
TLV4112CP 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
TLV4112CPE4 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
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