参数资料
| 型号： | MCP639-E/ML |
| 厂商： | Microchip Technology |
| 文件页数： | 18/62页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP QUAD 24MHZ 16-QFN |
| 标准包装： | 91 |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 输出类型： | 满摆幅 |
| 转换速率： | 10 V/µs |
| 增益带宽积： | 24MHz |
| 电流 - 输入偏压： | 4pA |
| 电压 - 输入偏移： | 1800µV |
| 电流 - 电源： | 2.5mA |
| 电流 - 输出 / 通道： | 70mA |
| 电压 - 电源，单路/双路(±)： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（4x4） |
| 包装： | 管件 |
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2009-2011 Microchip Technology Inc.
DS22197B-page 25
MCP631/2/3/4/5/9
Keep sensitive traces short and straight. Separate
them from interfering components and traces. This is
especially important for high frequency (low rise time)
signals.
Sometimes, it helps to place guard traces next to victim
traces. They should be on both sides of the victim
trace, and as close as possible. Connect guard traces
to ground plane at both ends, and in the middle for long
traces.
Use coax cables, or low inductance wiring, to route
signal and power to and from the PCB. Mutual and self
inductance of power wires is often a cause of crosstalk
and unusual behavior.
4.7
Typical Applications
4.7.1
POWER DRIVER WITH HIGH GAIN
Figure 4-10 shows a power driver with high gain
(1 + R2/R1). The MCP631/2/3/4/5/9 op amp’s short cir-
cuit current makes it possible to drive significant loads.
The calibrated input offset voltage supports accurate
response at high gains. R3 should be small, and equal
to R1||R2, in order to minimize the bias current induced
offset.
FIGURE 4-10:
Power Driver.
4.7.2
OPTICAL DETECTOR AMPLIFIER
Figure 4-11 shows a trans-impedance amplifier, using
the MCP63X op amp, in a photo detector circuit. The
photo detector is a capacitive current source.
RF provides enough gain to produce 10 mV at VOUT.
CF stabilizes the gain and limits the trans-impedance
bandwidth
to
about
1.1 MHz.
RF’s parasitic
capacitance (e.g., 0.2 pF for a 0805 SMD) acts in
parallel with CF.
FIGURE 4-11:
Trans-impedance Amplifier
for an Optical Detector.
4.7.3
H-BRIDGE DRIVER
Figure 4-12 shows the MCP632 dual op amp used as
a 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
frequency responses match well (in magnitude and in
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:
R1
R2
VIN
VDD/2
VOUT
R3
RL
MCP63X
Photo
Detector
CD
CF
RF
VDD/2
30pF
100 k
1.5 pF
ID
100 nA
VOUT
MCP63X
RF
VIN
VOT
RF
RGB
VOB
VDD/2
RGT
RL
MCP632
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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相关代理商/技术参数 |
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| MCP639T-E/ML | 功能描述:运算放大器 - 运放 Quad 24MHz OP w/CS E temp RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MCP6401RT-E/OT | 功能描述:运算放大器 - 运放 Single 1.8V 1MHz Op E temp RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MCP6401T-E/LT | 功能描述:运算放大器 - 运放 Single 1.8V 1Mhz Op RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MCP6401T-E/LT | 制造商:Microchip Technology Inc 功能描述:OPERATIONAL AMPLIFIER (OP-AMP) IC 制造商:Microchip Technology Inc 功能描述:IC, OP-AMP, 1MHZ, 0.5V/ us, SC-70-5 |
| MCP6401T-E/OT | 功能描述:运算放大器 - 运放 Single 1.8V 1Mhz Op RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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