參數(shù)資料
型號： MCP6271R
廠商： Microchip Technology Inc.
英文描述： 170 レA, 2 MHz Rail-to-Rail Op Amp
中文描述： 170レ甲，2 MHz的軌到軌運(yùn)算放大器
文件頁數(shù)： 15/34頁
文件大?。?/td> 1118K
代理商： MCP6271R
2006 Microchip Technology Inc.
DS21810E-page 15
MCP6271/1R/2/3/4/5
4.9
Application Circuits
4.9.1
ACTIVE FULL-WAVE RECTIFIER
The MCP6271/1R/2/3/4/5 family of amplifiers can be
used in applications such as an Active Full-Wave
Rectifier or an Absolute Value circuit, as shown in
Figure 4-8
. The amplifier and feedback loops in this
active voltage rectifier circuit eliminate the diode drop
problem that exists in a passive voltage rectifier. This
circuit behaves as a follower (the output follows the
input) as long as the input signal is more positive than
the reference voltage. If the input signal is more
negative than the reference voltage, however, the
circuit behaves as an inverting amplifier. Therefore, the
output voltage will always be above the reference
voltage, regardless of the input signal.
FIGURE 4-8:
Active Full-wave Rectifier.
The design equations give a gain of ±1 from V
IN
to
V
OUT
, and produce rail-to-rail outputs.
4.9.2
LOSSY NON-INVERTING
INTEGRATOR
The non-inverting integrator shown in
Figure 4-9
is
easy to build. It saves one op amp over the typical
Miller integrator plus inverting amplifier configuration.
The phase accuracy of this integrator depends on the
matching of the input and feedback resistor-capacitor
time constants. R
F
makes this a lossy integrator (it has
finite gain at DC), and makes this integrator stable by
itself.
FIGURE 4-9:
Non-Inverting Integrator.
–
Op Amp B
+
–
+
V
IN
V
OUT
V
REF
V
REF
R
1
R
3
R
4
R
5
R
2
Op Amp A
D
1
D
2
V
REF
V
REF
time
time
Input
Output
R
5
R
R
4
2
R
3
------------
=
R
1
R
2
R
3
=
=
1/2
MCP6272
1/2
MCP6272
R
4
R
3
<
1
V
V
REF
V
SS
–
---------------------------
–
+
_
C
1
C
2
R
1
R
2
V
IN
V
OUT
R
F
V
V
IN
-------------
s R
1
C
1
)
---------1
f
2
R
1
C
1
1
R
F
R
2
+
)
-----------------------1
≈
,
≈
MCP6271
R
F
R
2
≈
R
1
C
1
R
2
||
R
F
(
)
C
2
=
相關(guān)PDF資料
PDF描述
MCP6271 300000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
MCP6273 300000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
MCP6274 300,000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
MCP6275 170 UA, 2 MHz Rail-to-Rail Op Amp
MCP6291 1.0 mA, 10 MHz Rail-to-Rail Op Amp
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP6271RT-E/OT 功能描述:運(yùn)算放大器 - 運(yùn)放 Single 2 MHz OP E temp rvs pinout 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
MCP6271T-E/MS 功能描述:運(yùn)算放大器 - 運(yùn)放 Single 2MHz 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
MCP6271T-E/OT 功能描述:運(yùn)算放大器 - 運(yùn)放 Single 2 MHz OP E temp 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
MCP6271T-E/SN 功能描述:運(yùn)算放大器 - 運(yùn)放 Single 2MHz 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
MCP6272-E/MS 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual 2MHz 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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