參數(shù)資料
型號(hào)： MCP602-IP
廠商： Microchip Technology Inc.
元件分類： FPGA
英文描述： 300000 SYSTEM GATE 2.5 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
中文描述： 2.7V至5.5V單電源CMOS運(yùn)算放大器
文件頁(yè)數(shù)： 13/20頁(yè)
文件大?。?/td> 448K
代理商： MCP602-IP
2000 Microchip Technology Inc.
DS21314D-page 13
MCP601/602/603/604
Circuit examples of ring implementations are shown in
Figure 3-8. In Figure 3-8A, B and C, the guard ring is
biased to the common-mode voltage of the amplifier.
This type of guard ring is most effective for applications
where the common-mode voltage of the input stage
changes, such as buffers, inverting gain amplifiers or
instrumentation amplifiers.
The strategy shown in Figure 3-8D, biases the com-
mon-mode voltage and guard ring to ground. This type
of guard ring is typically used in precision photo sens-
ing circuits.
FIGURE 3-8:
traces to minimize leakage paths to the high
impedance input pins of the MCP601/602/603/604
amplifiers.
Examples of how to design PC Board
3.5.2
SIGNAL COUPLING
The input pins of the MCP601/602/603/604 amplifiers
have a high impedance providing an opportunity for
noise injection, if layout issues are not considered.
These high impedance input terminals are sensitive to
injected currents. This can occur if the trace from a high
impedance input is next to a trace that has fast chang-
ing voltages, such as a digital or clock signal. When a
high impedance trace is in close proximity to a trace
with these types of voltage changes, charge is capaci-
tively coupled into the high impedance trace.
FIGURE 3-9:
traces allowing for coupling of signals from one trace
to another.
Capacitors can be built with PCB
As shown in Figure 3-9, the value of the capacitance
between two traces is primarily dependent on the dis-
tance (d) between the traces and the distance that the
two traces are in parallel (L). From this model, the
amount of current generated into the high impedance
trace is equal to:
I =
C
V/
t
where:
I
equals the current that appears on the high
impedance trace,
C
equals the value of capacitance between the two
PCB traces,
V
equals the change in voltage of the trace that is
switching, and
t
equals the amount of time that the voltage
change took to get from one level to the next.
Voltage
Reference
(could be ground)
MCP60X
MCP60X
MCP60X
MCP60X
V
DD
Figure 3-8A
Figure 3-8C
Figure 3-8B
Figure 3-8D
w= thickness of PCB trace
L
= length of PCB trace
d
= distance between the two PCB traces
PCB Trace
w
(typ 0.003mm)
PCB
Cross-Section
w x L x e
o
x e
r
d
C =
pF
L
d
相關(guān)PDF資料
PDF描述
MCP602-ISL 2.7V to 5.5V Single Supply CMOS Op Amps
MCP602-ISN 2.7V to 5.5V Single Supply CMOS Op Amps
MCP602-IST 300000 SYSTEM GATE 2.5 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
MCP603-I 300,000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
MCP603-IOT 2.7V to 5.5V Single Supply CMOS Op Amps
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP602I-P 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2.7V to 6.0V Single Supply CMOS Op Amps
MCP602-ISL 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2.7V to 5.5V Single Supply CMOS Op Amps
MCP602-ISN 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2.7V to 6.0V Single Supply CMOS Op Amps
MCP602-IST 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2.7V to 5.5V Single Supply CMOS Op Amps
MCP602T 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2.7V to 5.5V Single-Supply CMOS Op Amps
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