MCP6231/2/4
20 µA, 300 kHz Rail-to-Rail Op Amp
Features
Description
• Gain Bandwidth Product: 300 kHz (typ.)
• Supply Current: IQ = 20 µA (typ.)
The Microchip Technology Inc. MCP6231/2/4 opera-
tional amplifiers (op amps) provide wide bandwidth for
the quiescent current. The MCP6231/2/4 family has a
300 kHz Gain Bandwidth Product (GBWP) and 65°
(typ.) phase margin. This family operates from a single
supply voltage as low as 1.8V, while drawing 20 µA
(typ.) quiescent current. In addition, the MCP6231/2/4
family supports rail-to-rail input and output swing, with
a common mode input voltage range of VDD + 300 mV
to VSS – 300 mV. These op amps are designed in one
of Microchip’s advanced CMOS processes.
• Supply Voltage: 1.8V to 5.5V
• Rail-to-Rail Input/Output
• Extended Temperature Range: -40°C to +125°C
• Available in 5-Pin SC-70 and SOT-23 packages
Applications
• Automotive
• Portable Equipment
• Transimpedance amplifiers
• Analog Filters
Package Types
MCP6231
MCP6231
PDIP, SOIC, MSOP
• Notebooks and PDAs
• Battery-Powered Systems
SOT-23-5
NC
1
2
3
4
8
7
6
5
NC
VDD
VOUT
VSS
1
2
3
5
4
VDD
VIN
–
+
–
+
Available Tools
–
VIN
VOUT
NC
VIN
+
VIN–
• SPICE Macro Models (at www.microchip.com)
• FilterLab® Software (at www.microchip.com)
VSS
MCP6231R
MCP6232
PDIP, SOIC, MSOP
Typical Application
SOT-23-5
V
VSS
VOUT
VDD
V
V
8
7
6
5
1
5
4
OUTA
1
2
R
DD
G2
_
V
2
3
V
-
+
IN2
INA
OUTB
–
R
_
VIN+
VIN–
G1
V
+ 3
4
+ -
V
V
INA
INB
V
IN1
V
R
+
SS
F
INB
V
DD
MCP6231U
SC-70-5, SOT-23-5
MCP6234
PDIP, SOIC, TSSOP
–
R
X
Y
V
OUT
MCP6231
+
VDD
VIN
VSS
VIN
+
V
14 V
1
1
2
3
5
OUTA
OUTD
+
R
R
Z
V
– 2
- + + 13 V
-
–
INA
IND
–
V
+
12 V
+
3
4
–
VOUT
4
INA
IND
V
V
SS
11
DD
V
V
+
–
10 V
9 V
8 V
+
5
6
7
INB
INC
- + + -
–
Summing Amplifier Circuit
INB
INC
V
OUTB
OUTC
© 2005 Microchip Technology Inc.
DS21881C-page 1