MCP6002T-I/P Microchip Technology, MCP6002T-I/P Datasheet - Page 8

• Manufacturer Part Number: MCP6002T-I/P
• Description: Operational Amplifier, Dual channel, V, DIP, 8-Pin
• Manufacturer: Microchip Technology

MCP6002
FIGURE 3-4:
Capacitive Loads.
3.5
3.5.1
The rail-to-rail input and output capability of the
MCP6002 is ideal for unity gain buffer applications. The
low quiescent current and wide bandwidth makes the
MCP6002 suitable for a buffer configuration in an
instrumentation amplifier circuit, as shown in Figure 3-
5.
FIGURE 3-5:
with Unity Gain Buffer Inputs.
DS21733A-page 8
V
V
V
IN
IN2
IN1
Application Circuits
MCP6002
+
+
-
MCP6002
-
UNITY GAIN BUFFER
–
MCP6002
+
Amplifier Circuit for Heavy
Instrumentation Amplifier
R
R
1
1
V
R
REF
ISO
C
MCP6XXX
R
+
-
L
2
R
2
V
OUT
V
OUT
3.5.2
The MCP6002 is suitable for active low pass filter appli-
cations, as shown in Figure 3-6. It is possible to have a
filter cutoff frequency as high as 1/10th of the op amp
bandwidth, or 100 kHz at unity gain. The low input bias
current also makes it possible for the designer to use
larger resistor values and smaller capacitor values.
However, as the resistances increase, the noise gener-
ated also increases. In addition, parasitic capacitances
and the large value resistors could modify the fre-
quency response. These trade-offs need to be consid-
ered when selecting circuit elements.
FIGURE 3-6:
The component values in Figure 3-6 can be selected
using Microchip’s FilterLab
that simplifies active filter design. This tool provides
schematic diagrams of filter circuits (up to the 8th
order) with resistor and capacitor values, and displays
the frequency response.
FilterLab can be downloaded, free of charge, from the
Microchip website (www.microchip.com).
V
IN
R
1
ACTIVE LOW PASS FILTER
R
C
2
2
Active Low Pass Filter.
R
2002 Microchip Technology Inc.
3
®
C
, which is a software tool
1
MCP600X
+
-
R
4
V
OUT