MCP6231/1R/1U/2/4
20 µA, 300 kHz Rail-to-Rail Op Amp
Features
•
•
•
•
•
•
Gain Bandwidth Product: 300 kHz (typical)
Supply Current: I
Q
= 20 µA (typical)
Supply Voltage: 1.8V to 6.0V
Rail-to-Rail Input/Output
Extended Temperature Range: -40°C to +125°C
Available in 5-Pin SC70 and SOT-23 packages
Description
The Microchip Technology Inc. MCP6231/1R/1U/2/4
operational amplifiers (op amps) provide wide bandwidth
for the quiescent current. The MCP6231/1R/1U/2/4
family has a 300 kHz gain bandwidth product and 65°C
(typical) phase margin. This family operates from a
single supply voltage as low as 1.8V, while drawing
20 µA (typical) quiescent current. In addition, the
MCP6231/1R/1U/2/4 family supports rail-to-rail input
and output swing, with a Common-mode input voltage
range of V
DD
+ 300 mV to V
SS
– 300 mV. These op amps
are designed in one of Microchip’s advanced CMOS
processes.
Applications
•
•
•
•
•
•
Automotive
Portable Equipment
Transimpedance Amplifiers
Analog Filters
Notebooks and PDAs
Battery-Powered Systems
Package Types
MCP6231
SOT-23-5
V
OUT
1
5 V
DD
2
V
IN
+ 3
MCP6231
MSOP, PDIP, SOIC
NC 1
V
IN
- 2
4 V
IN
-
V
IN
+ 3
V
SS
4
–
+
8 NC
7 V
DD
6 V
OUT
5 NC
Design Aids
•
•
•
•
•
•
SPICE Macro Models
FilterLab
®
Software
Mindi™ Circuit Designer and Simulator
Microchip Advanced Part Selector (MAPS)
Analog Demonstration and Evaluation Boards
Application Notes
+
–
MCP6231R
SOT-23-5
V
OUT
1
V
DD
2
V
IN
+ 3
5 V
SS
MCP6232
MSOP, PDIP, SOIC
V
OUTA
1
V
INA
- 2
–
+
8 V
DD
7 V
OUTB
+
–
6 V
INB
-
5 V
INB
+
+
–
4 V
IN
-
Typical Application
R
G2
V
IN2
R
G1
V
IN1
V
DD
R
X
R
Y
R
Z
–
MCP6231
+
V
OUT
R
F
V
INA
+ 3
V
SS
4
MCP6231U
SC70-5, SOT-23-5
V
IN
+ 1
V
SS
2
V
IN
- 3
5 V
DD
MCP6232
2x3 TDFN*
V
OUTA
1
V
INA
- 2
V
INA
+ 3
V
SS
4
EP
9
8 V
DD
7 V
OUTB
6 V
INB
-
5 V
INB
+
+
–
4 V
OUT
MCP6231
DFN*
NC
1
V
IN
-
2
V
IN
+
3
MCP6234
PDIP, SOIC, TSSOP
V
OUTA
1
V
INA
- 2
V
INA
+ 3
V
DD
4
V
INB
+ 5
V
INB
- 6
V
OUTB
7
14 V
OUTD
- + + - 13 V
IND
-
12 V
IND
+
11 V
SS
10 V
INC
+
-+ + - 9 V -
INC
8 V
OUTC
8
NC
EP
9
7
V
DD
6
V
OUT
5
NC
Summing Amplifier Circuit
V
SS
4
* Includes Exposed Thermal Pad (EP); see
Table 3-1.
2004-2020 Microchip Technology Inc.
DS20001881G-page 1
MCP6231/1R/1U/2/4
NOTES:
DS20001881G-page 2
2004-2020 Microchip Technology Inc.
MCP6231/1R/1U/2/4
1.0
ELECTRICAL
CHARACTERISTICS
† Notice:
Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification is not
implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
††
See
Section 4.1.2 “Input Voltage and Current Limits”.
Absolute Maximum Ratings†
V
DD
– V
SS
........................................................................7.0V
Current at Analog Input Pins (V
IN
+, V
IN
-)......................±2 mA
Analog Inputs (V
IN
+, V
IN
-)†† .......... V
SS
– 1.0V to V
DD
+ 1.0V
All Other Inputs and Outputs ......... V
SS
– 0.3V to V
DD
+ 0.3V
Difference Input Voltage ...................................... |V
DD
– V
SS
|
Output Short-Circuit Current ................................ Continuous
Current at Output and Supply Pins ............................±30 mA
Storage Temperature ....................................-65°C to +150°C
Maximum Junction Temperature (T
J
)......................... .+150°C
ESD Protection on All Pins (HBM; MM)
4 kV; 300V
DC ELECTRICAL CHARACTERISTICS
Electrical Characteristics:
Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to +5.5V, V
SS
= GND, V
CM
= V
DD
/2,
R
L
= 100 kto V
DD
/2 and V
OUT
V
DD
/2.
Parameters
Input Offset
Input Offset Voltage
Extended Temperature
Input Offset Drift with Temperature
Power Supply Rejection Ratio
Input Bias Current and Impedance
Input Bias Current:
At Temperature
At Temperature
Input Offset Current
Common-Mode Input Impedance
Differential Input Impedance
Common-Mode
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
DC Open-Loop Gain (large signal)
Output
Maximum Output Voltage Swing
Output Short-Circuit Current
Power Supply
Supply Voltage
Quiescent Current per Amplifier
Note 1:
2:
V
DD
I
Q
1.8
10
—
20
6.0
30
V
µA
I
O
= 0, V
CM
= V
DD
– 0.5V
V
OL
, V
OH
I
SC
I
SC
V
SS
+ 35
—
—
—
±6
±23
V
DD
– 35
—
—
mV
mA
mA
R
L
=10 k0.5V Input
Overdrive
V
DD
= 1.8V
V
DD
= 5.5V
A
OL
90
110
—
dB
V
OUT
= 0.3V to V
DD
– 0.3V,
V
CM
= V
SS
V
CMR
CMRR
V
SS
–0.3
61
—
75
V
DD
+ 0.3
—
V
dB
V
CM
= -0.3V to 5.3V,
V
DD
= 5V
I
B
I
B
I
B
I
OS
Z
CM
Z
DIFF
—
—
—
—
—
—
±1.0
20
1100
±1.0
10
13
||6
10 ||3
13
Sym
Min
Typ
Max
Units
Conditions
V
OS
V
OS
V
OS
/T
A
PSRR
-5.0
-7.0
—
—
—
—
±3.0
83
+5.0
+7.0
—
—
—
—
—
—
—
—
mV
mV
µV/°C
dB
pA
pA
pA
pA
||pF
||pF
V
CM
= V
SS
T
A
= -40°C to +125°C,
V
CM
= V
SS
(Note
1)
T
A
= -40°C to +125°C,
V
CM
= V
SS
V
CM
= V
SS
T
A
= +85°C
T
A
= +125°C
The SC70 package is only tested at +25°C.
All parts with date codes of February 2007 and later have been screened to ensure operation at V
DD
= 6.0V. However,
the other minimum and maximum specifications are measured at 1.8V and 5.5V.
2004-2020 Microchip Technology Inc.
DS20001881G-page 3
MCP6231/1R/1U/2/4
AC ELECTRICAL CHARACTERISTICS
Electrical Characteristics:
Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8 to 5.5V, V
SS
= GND, V
CM
= V
DD
/2,
V
OUT
V
DD
/2, R
L
= 100 k to V
DD
/2 and C
L
= 60 pF.
Parameters
AC Response
Gain Bandwidth Product
Phase Margin
Slew Rate
Noise
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
E
ni
e
ni
i
ni
—
—
—
6.0
52
0.6
—
—
—
µV
P-P
nV/Hz
fA/Hz
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
GBWP
PM
SR
—
—
—
300
65
0.15
—
—
—
kHz
°
V/µs
G = +1 V/V
Sym
Min
Typ
Max
Units
Conditions
TEMPERATURE CHARACTERISTICS
Electrical Characteristics:
Unless otherwise indicated, V
DD
= +1.8V to +5.5V and V
SS
= GND.
Parameters
Temperature Ranges
Extended Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 5L-SC70
Thermal Resistance, 5L-SOT-23
Thermal Resistance, 8L-DFN
Thermal Resistance, 8L-MSOP
Thermal Resistance, 8L-TDFN
Thermal Resistance, 8L-PDIP
Thermal Resistance, 8L-SOIC
Thermal Resistance, 14L-PDIP
Thermal Resistance, 14L-SOIC
Thermal Resistance, 14L-TSSOP
Note 1:
JA
JA
JA
JA
JA
JA
JA
JA
JA
JA
—
—
—
—
—
—
—
—
—
—
331
256
84.5
206
41
85
163
70
120
100
—
—
—
—
—
—
—
—
—
—
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
T
A
T
A
T
A
-40
-40
-65
—
—
—
+125
+125
+150
°C
°C
°C
Note 1
Sym
Min
Typ
Max
Units
Conditions
The internal Junction Temperature (T
J
) must not exceed the absolute maximum specification of +150°C.
DS20001881G-page 4
2004-2020 Microchip Technology Inc.
MCP6231/1R/1U/2/4
1.1
Test Circuits
The test circuits used for the DC and AC tests are shown in
Figure 1-1
and
Figure 1-2.
The bypass capacitors are laid
out according to the rules discussed in
Section 4.6 “PCB Surface Leakage”.
V
DD
R
N
+
MCP623X
–
V
DD
/2 R
G
R
F
V
L
C
L
0.1 µF
1 µF
V
OUT
R
L
V
IN
R
G
V
DD
R
N
+
MCP623X
–
R
F
V
L
C
L
1 µF
V
OUT
R
L
V
IN
V
DD
/2
0.1 µF
FIGURE 1-1:
AC and DC Test Circuit for
Most Noninverting Gain Conditions.
FIGURE 1-2:
AC and DC Test Circuit for
Most Inverting Gain Conditions.
2004-2020 Microchip Technology Inc.
DS20001881G-page 5
