MCP6241/1R/1U/2/4
50 µA, 550 kHz Rail-to-Rail Op Amp
Features
•
•
•
•
•
•
Gain Bandwidth Product: 550 kHz (typical)
Supply Current: I
Q
= 50 µA (typical)
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
Description
The Microchip Technology Inc. MCP6241/1R/1U/2/4
operational amplifiers (op amps) provide wide
bandwidth for the quiescent current. The MCP6241/1R/
1U/2/4 has a 550 kHz gain bandwidth product and 68°
(typical) phase margin. This family operates from a
single supply voltage as low as 1.8V, while drawing
50 µA (typical) quiescent current. In addition, the
MCP6241/1R/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
Photodiode (Transimpedance) Amplifier
Analog Filters
Notebooks and PDAs
Battery-Powered Systems
Package Types
MCP6241
SOT-23-5
V
OUT
1
V
SS
2
V
IN
+ 3
–
+
+
MCP6241
PDIP, SOIC, MSOP
5 V
DD
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
Mindi™ Circuit Designer & Simulator
Microchip Advanced Part Selector (MAPS)
Analog Demonstration and Evaluation Boards
Application Notes
MCP6241R
SOT-23-5
V
OUT
1
V
DD
2
V
IN
+ 3
–
+
MCP6242
PDIP, SOIC, MSOP
V
OUTA
1
V
INA_
2
- +
+ -
8 V
DD
7 V
OUTB
6 V
INB_
5 V
INB
+
5 V
SS
Typical Application
R
G2
V
IN2
R
G1
V
IN1
V
DD
R
X
R
Y
R
Z
–
MCP6241
+
V
OUT
R
F
4 V
IN
–
V
INA
+ 3
V
SS
4
MCP6241U
SC-70-5, SOT-23-5
V
IN
+ 1
V
SS
2
V
IN
– 3
+
–
MCP6244
PDIP, SOIC, TSSOP
V
OUTA
1
V
INA
– 2
14 V
OUTD
- + + - 13 V
IND
–
12 V
IND
+
11 V
SS
10 V
INC
+
- + +- 9 V –
INC
8 V
OUTC
5 V
DD
4 V
OUT
V
INA
+ 3
V
DD
4
MCP6241
2x3 DFN*
NC 1
8 NC
EP
9
7 V
DD
6 V
OUT
5 NC
V
INB
+ 5
V
INB
– 6
V
OUTB
7
Summing Amplifier Circuit
V
IN
– 2
V
IN
+ 3
V
SS
4
* Includes Exposed Thermal Pad (EP); see
Table 3-1.
©
2008 Microchip Technology Inc.
DS21882D-page 1
MCP6241/1R/1U/2/4
NOTES:
DS21882D-page 2
©
2008 Microchip Technology Inc.
MCP6241/1R/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 kΩ to 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
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:
V
DD
I
Q
1.8
30
—
50
5.5
70
V
µA
I
O
= 0, V
CM
= V
DD
– 0.5V
V
OL
, V
OH
V
SS
+ 35
I
SC
I
SC
—
—
—
±6
±23
V
DD
– 35
—
—
mV
mA
mA
R
L
= 10 kΩ, 0.5V 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
60
—
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
V
OS
V
OS
ΔV
OS
/ΔT
A
PSRR
Min
-5.0
-7.0
—
—
Typ
—
—
±3.0
83
Max
+5.0
+7.0
—
—
—
—
—
—
—
—
Units
mV
mV
Conditions
V
CM
= V
SS
T
A
= -40°C to +125°C,
V
CM
= V
SS
(Note 1)
µV/°C T
A
= -40°C to +125°C,
V
CM
= V
SS
dB
pA
pA
pA
pA
Ω||pF
Ω||pF
T
A
= +85°C
T
A
= +125°C
V
CM
= V
SS
The SC-70 package is only tested at +25°C.
©
2008 Microchip Technology Inc.
DS21882D-page 3
MCP6241/1R/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
= 10 kΩ 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
—
—
—
10
45
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
—
—
—
550
68
0.30
—
—
—
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 (2x3)
Thermal Resistance, 8L-MSOP
Thermal Resistance, 8L-PDIP
Thermal Resistance, 8L-SOIC
Thermal Resistance, 14L-PDIP
Thermal Resistance, 14L-SOIC
Thermal Resistance, 14L-TSSOP
Note:
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
—
—
—
—
—
—
—
—
—
331
256
84.5
206
85
163
70
120
100
—
—
—
—
—
—
—
—
—
°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)
Sym
Min
Typ
Max
Units
Conditions
The internal Junction Temperature (T
J
) must not exceed the Absolute Maximum specification of +150°C.
1.1
Test Circuits
V
DD
R
N
0.1 µF 1 µF
V
OUT
C
L
V
OUT
C
L
R
L
V
L
V
IN
R
G
R
F
V
L
R
L
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
0.1 µF 1 µF
V
DD
/2
MCP624X
V
IN
MCP624X
R
F
V
DD
/2 R
G
FIGURE 1-2:
AC and DC Test Circuit for
Most Inverting Gain Conditions.
FIGURE 1-1:
AC and DC Test Circuit for
Most Non-Inverting Gain Conditions.
DS21882D-page 4
©
2008 Microchip Technology Inc.
MCP6241/1R/1U/2/4
2.0
Note:
TYPICAL PERFORMANCE CURVES
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note:
Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to +5.5V, V
SS
= GND, V
CM
= V
DD
/2, V
OUT
≈
V
DD
/2,
R
L
= 100 kΩ to V
DD
/2 and C
L
= 60 pF.
20%
18%
16%
14%
12%
10%
8%
6%
4%
2%
0%
90
CMRR, PSRR (dB)
85
80
75
70
-5
-4
-3
-2
-1
0
1
2
3
4
5
-50
Input Offset Voltage (mV)
Percentage of Occurrences
630 Samples
V
CM
= V
SS
PSRR (V
CM
= V
SS
)
CMRR (V
CM
= -0.3V to +5.3V,
V
DD
= 5.0V)
-25
0
25
50
75
Ambient Temperature (°C)
100
125
FIGURE 2-1:
Input Offset Voltage.
FIGURE 2-4:
Temperature.
120
Open-Loop Gain (dB)
CMRR, PSRR vs. Ambient
110
100
PSRR, CMRR (dB)
90
80
70
60
50
40
30
20
10
1.E+01
100
1.E+02
1k
10k
1.E+03
1.E+04
Frequency (Hz)
100k
1.E+05
PSRR+
PSRR-
CMRR
Gain
80
60
40
20
0
-20
0.1 1
10
1.E- 1.E+ 1.E+
01 00 01
Phase
-60
-90
-120
-150
-180
-210
100 1k 10k
1.E+
1M
1.E+
1.E+ 1.E+ 1.E+
100k
1.E+
10M
Frequency (Hz)
05 06 07
02 03 04
FIGURE 2-2:
Frequency.
25%
20%
15%
10%
5%
0%
0
6
PSRR, CMRR vs.
FIGURE 2-5:
Frequency.
30%
25%
20%
15%
10%
5%
0%
0.2
Open-Loop Gain, Phase vs.
Percentage of Occurrences
180 Samples
V
CM
= V
DD
/2
T
A
= +85°C
Percentage of Occurrences
180 Samples
V
CM
= V
DD
/2
T
A
= +125°C
1.8
0.6
1.2
0.0
0.4
0.8
1.0
1.4
1.6
Input Bias Current (pA)
Input Bias Current (nA)
FIGURE 2-3:
Input Bias Current at +85°C.
FIGURE 2-6:
+125°C.
Input Bias Current at
©
2008 Microchip Technology Inc.
DS21882D-page 5
2.0
12
18
24
30
36
42
Open-Loop Phase (°)
100
R
L
= 10.0 kΩ
V
CM
= V
DD
/2
0
-30
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