參數(shù)資料
型號(hào)： TLV2771QDBVRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 運(yùn)算放大器
英文描述： OP-AMP, 2700 uV OFFSET-MAX, 4.8 MHz BAND WIDTH, PDSO5
封裝： PLASTIC, SOT-23, 5 PIN
文件頁(yè)數(shù)： 24/45頁(yè)
文件大小： 986K
代理商： TLV2771QDBVRQ1
TLV277x-Q1, TLV277xA-Q1
FAMILY OF 2.7-V HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT
OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SGLS179D SEPTEMBER 2003 REVISED AUGUST 2008
30
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
offset voltage
The output offset voltage, (VOO) is the sum of the input offset voltage (VIO) and both input bias currents (IIB) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset
voltage:
V
OO +
V
IO
1
)
R
F
R
G
" I
IB
)
R
S
1
)
R
F
R
G
" I
IB–
R
F
+
VI
+
RG
RS
RF
IIB
VO
IIB+
Figure 59. 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
VI
VO
C1
+
RG
RF
R1
f
–3dB +
1
2
pR1C1
V
O
V
I
+
1
)
R
F
R
G
1
) sR1C1
Figure 60. 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
pRC
Figure 61. 2-Pole Low-Pass Sallen-Key Filter
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV2772ACD 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TLV2772AID 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual 2.7V Rail-Rail 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
TLV2772AID 制造商:Texas Instruments 功能描述:IC SM OP-AMP DUAL RRO/P
TLV2772AIDG4 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual 2.7-V High-Slew Rate R-To-R Output 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
TLV2772AIDR 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual 2.7-V High-Slew Rate R-To-R Output 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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