參數(shù)資料
型號(hào)： MCP660-E/ML
廠商： Microchip Technology
文件頁數(shù)： 19/68頁
文件大?。?/td> 0K
描述： IC OPAMP TRIPLE 60MHZ 16QFN
標(biāo)準(zhǔn)包裝： 91
放大器類型： 通用
電路數(shù)： 3
輸出類型： 滿擺幅
轉(zhuǎn)換速率： 32 V/µs
增益帶寬積： 60MHz
電流 - 輸入偏壓： 6pA
電壓 - 輸入偏移： 1800µV
電流 - 電源： 6mA
電流 - 輸出 / 通道： 80mA
電壓 - 電源，單路/雙路(±)： 2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 16-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 16-QFN（4x4）
包裝： 管件
MCP660/1/2/3/4/5/9
DS22194D-page 26
2009-2012 Microchip Technology Inc.
4.8
Typical Applications
4.8.1
50
LINE DRIVER
Figure 4-10 shows the MCP661 driving a 50
line. The
large output current (e.g., see Figure 2-18) makes it
possible to drive a back-matched line (RM2, the 50
line and the 50
load at the far end) to more than ±2V
(the load at the far end sees ±1V). It is worth mention-
ing that the 50
line and the 50 load at the far end
together can be modeled as a simple 50
resistor to
ground.
FIGURE 4-10:
50
Line Driver.
The output headroom limits would be VOL = -2.3V and
VOH = +2.3V (see Figure 2-16), leaving some design
room for the ±2V signal. The open-loop gain (AOL)
typically does not decrease significantly with a 100
load (see Figure 2-11). The maximum power dissipated
is about 48 mW (see Section 4.2.3 “Power
Dissipation”), so the temperature rise (for the
MCP661 in the SOIC-8 package) is under 8°C.
4.8.2
OPTICAL DETECTOR AMPLIFIER
Figure 4-11 shows a transimpedance amplifier, using
the MCP661 op amp, in a photo detector circuit. The
photo detector is a capacitive current source. RF pro-
vides enough gain to produce 10 mV at VOUT. CF stabi-
lizes the gain and limits the transimpedance bandwidth
to about 1.1 MHz. The parasitic capacitance of RF (e.g.,
0.2 pF for a 0805 SMD) acts in parallel with CF.
FIGURE 4-11:
Transimpedance Amplifier
for an Optical Detector.
4.8.3
H-BRIDGE DRIVER
Figure 4-12 shows the MCP662 dual op amp used as
an H-bridge driver. The load could be a speaker or a
DC motor.
FIGURE 4-12:
H-Bridge Driver.
This circuit automatically makes the noise gains (GN)
equal, when the gains are set properly, so that the fre-
quency responses match well (in magnitude and in
phase). Equation 4-7 shows how to calculate RGT and
RGB so that both op amps have the same DC gains;
GDM needs to be selected first.
EQUATION 4-7:
Equation 4-8 gives the resulting Common mode and
Differential mode output voltages.
EQUATION 4-8:
RF
301
RG
301
RM1
49.9
50
RM2
49.9
50
Line
+2.5V
-2.5V
MCP66X
Photo
Detector
CD
CF
RF
VDD/2
30pF
100 k
1.5 pF
ID
100 nA
VOUT
MCP661
RF
VIN
VOT
RF
RGB
VOB
VDD/2
RGT
RL
MCP662
GDM
VOT VOB
–
VIN VDD 2
–
--------------------------------- 1 V/V
RGT
RF
GDM 2
1
–
---------------------------------
=
RGB
RF
GDM 2
-------------------
=
VOT V
+ OB
2
---------------------------
VDD
2
-----------
=
VOT V
– OB
GDM VIN
VDD
2
-----------
–
=
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MCP660T-E/ML 功能描述:運(yùn)算放大器 - 運(yùn)放 Triple 60MHz OP w/CS 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
MCP660T-E/SL 功能描述:運(yùn)算放大器 - 運(yùn)放 Triple 60MHz 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
MCP660T-E/ST 功能描述:運(yùn)算放大器 - 運(yùn)放 Triple 60MHz 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
MCP661DM-LD 功能描述:放大器 IC 開發(fā)工具 Demo Board MCP661 Line Driver RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
MCP661-E/SN 功能描述:運(yùn)算放大器 - 運(yùn)放 Single 60MHz 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
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