MCP6241T-E/MC Microchip Technology, MCP6241T-E/MC Datasheet - Page 14

• Manufacturer Part Number: MCP6241T-E/MC
• Description: Single 1.8V, 550 KHz OP, E Temp 8 DFN 2X3mm T/R
• Manufacturer: Microchip Technology

Specifications of MCP6241T-E/MC

• Amplifier Type: General Purpose
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 0.3 V/µs
• 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
• Package / Case: 8-DFN
• Number Of Channels: 1
• Voltage Gain Db: 110 dB
• Common Mode Rejection Ratio (min): 60 dB
• Input Offset Voltage: 5 mV
• Operating Supply Voltage: 3 V, 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: Details

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.