MCP6242-E/SN Microchip Technology, MCP6242-E/SN Datasheet - Page 14
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MCP6242-E/SN
Manufacturer Part Number
MCP6242-E/SN
Description
IC OPAMP 1.8V DUAL R-R 8SOIC
Manufacturer
Microchip Technology
Specifications of MCP6242-E/SN
Slew Rate
0.3 V/µs
Package / Case
8-SOIC (3.9mm Width)
Amplifier Type
General Purpose
Number Of Circuits
2
Output Type
Rail-to-Rail
Gain Bandwidth Product
550kHz
Current - Input Bias
1pA
Voltage - Input Offset
5000µV
Current - Supply
50µA
Current - Output / Channel
23mA
Voltage - Supply, Single/dual (±)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Number Of Channels
2
Common Mode Rejection Ratio (min)
60 dB
Input Offset Voltage
5 mV
Input Bias Current (max)
1 pA
Operating Supply Voltage
3 V, 5 V
Supply Current
0.14 mA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Shutdown
No
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Technology
CMOS
Voltage Gain Db
110 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP6242-E/SN
Manufacturer:
Microchip
Quantity:
10 595
Part Number:
MCP6242-E/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
MCP6241/1R/1U/2/4
4.7.2
In analog circuit design, the PCB parasitic capacitance
can compromise the circuit behavior;
a typical scenario. If the input of an amplifier sees
parasitic capacitance of several picofarad (C
which includes the common mode capacitance of 6 pF,
typical) and large R
of the circuit will include a zero. This parasitic zero
introduces gain peaking and can cause circuit
instability.
FIGURE 4-9:
Capacitance at the Input.
One solution is to use smaller resistor values to push
the zero to a higher frequency. Another solution is to
compensate by introducing a pole at the point at which
the zero occurs. This can be done by adding C
parallel with the feedback resistor (R
selected so that the ratio C
of R
DS21882D-page 14
V
V
F
AC
DC
:R
G
.
COMPENSATING FOR THE
PARASITIC CAPACITANCE
C
R
PARA
G
F
and R
Effect of Parasitic
MCP624X
+
–
PARA
R
C
G
F
F
, the frequency response
:C
C
F
F
is equal to the ratio
=
F
Figure 4-9
). C
C
PARA
F
V
needs to be
OUT
•
R
------ -
R
shows
G
F
PARA
F
in
,
© 2008 Microchip Technology Inc.