参数资料
型号: MCP6H04T-E/SL
厂商: Microchip Technology
文件页数: 13/46页
文件大小: 0K
描述: IC OPAMP QUAD16V 1.2MHZ 14SOIC
标准包装: 2,600
放大器类型: 通用
电路数: 4
输出类型: 满摆幅
转换速率: 0.8 V/µs
增益带宽积: 1.2MHz
电流 - 输入偏压: 10pA
电压 - 输入偏移: 700µV
电流 - 电源: 135µA
电流 - 输出 / 通道: 50mA
电压 - 电源,单路/双路(±): 3.5 V ~ 16 V,±1.75 V ~ 8 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOICN
包装: 带卷 (TR)
MCP6H01/2/4
DS22243D-page 20
2010-2011 Microchip Technology Inc.
4.7.2
TWO OP AMP INSTRUMENTATION
AMPLIFIER
The MCP6H01/2/4 op amps are well suited for
conditioning
sensor
signals
in
battery-powered
applications.
shows
a
two
op
amp
instrumentation amplifier using the MCP6H02, which
works well for applications requiring rejection of
common mode noise at higher gains.
To ensure proper operation, the op amp common mode
input voltage must be kept within the allowed range.
The reference voltage (VREF) is supplied by a low-
impedance source. In single-supply applications, VREF
is typically VDD/2.
FIGURE 4-9:
Two Op Amp
Instrumentation Amplifier.
To obtain the best CMRR possible, and not limit the
performance by the resistor tolerances, set a high gain
with the RG resistor.
4.7.3
PHOTODETECTOR AMPLIFIER
The MCP6H01/2/4 op amps can be used to easily
convert the signal from a sensor that produces an
output current (such as a photo diode) into voltage (a
trans-impedance amplifier). This is implemented with a
single resistor (R2) in the feedback loop of the
amplifiers shown in Figure 4-10. The optional capacitor
(C2) sometimes provides stability for these circuits.
A photodiode configured in Photovoltaic mode has a
zero voltage potential placed across it. In this mode,
the light sensitivity and linearity is maximized, making it
best suited for precision applications. The key amplifier
specifications for this application are: low input bias
current, common mode input voltage range (including
ground), and rail-to-rail output.
FIGURE 4-10:
Photodetector Amplifier.
V
OUT
V
1
V
2
1
R
1
R
2
------
2R
1
R
G
---------
++
V
REF
+
=
VREF R1
R2
R1
VOUT
RG
V2
V1
MCP6H02
MCP6H02
D1
Light
VOUT
VDD
R2
C2
ID1
VOUT = ID1*R2
+
MCP6H01
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