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參數(shù)資料
| 型號： | TLV27L2CDR |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | FAMILY OF MICROPOWER RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS |
| 中文描述： | 系列微功耗，軌對軌輸出運(yùn)算放大器 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 274K |
| 代理商： | TLV27L2CDR |
TLV27L1
TLV27L2
SLOS378A – SEPTEMBER 2001 – REVISED JULY 2003
9
www.ti.com
APPLICATION INFORMATION
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 25. Output Offset Voltage Model
general configurations
When receiving low-level signals, limiting the bandwidth of the incoming signals into the system is often required. The
simplest way to accomplish this is to place an RC filter at the noninverting terminal of the amplifier (see Figure 26).
VI
VO
C1
+
–
RG
RF
R1
f–3dB
1
2 R1C1
VO
VI
1
RF
RG
1
sR1C1
1
VDD/2
Figure 26. Single-Pole Low-Pass Filter
If even more attenuation is needed, a multiple pole filter is required. The Sallen-Key filter can be used for this task.
For best results, the amplifier should have a bandwidth that is 8 to 10 times the filter frequency bandwidth. Failure
to do this can result in phase shift of the amplifier.
VI
C2
R2
R1
C1
RF
RG
R1 = R2 = R
C1 = C2 = C
Q = Peaking Factor
(Butterworth Q = 0.707)
(
=
1
Q
2 –
)
RG
RF
_
+
f–3dB
1
2 RC
VDD/2
Figure 27. 2-Pole Low-Pass Sallen-Key Filter
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|---|---|
| TLV27L2CDRG4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 11-uA/Ch 160kHz RR-Out Dual 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 |
| TLV27L2ID | 功能描述:運(yùn)算放大器 - 運(yùn)放 11uA 106kHz R/R 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 |
| TLV27L2IDG4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 11uA 106kHz R/R 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 |
| TLV27L2IDGK | 功能描述:運(yùn)算放大器 - 運(yùn)放 11-uA/Ch 160kHz RR-Out Dual 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 |
| TLV27L2IDGKG4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 11-uA/Ch 160kHz RR-Out Dual 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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