SGM8941/2
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
PRODUCT DESCRIPTION
The SGM8941 and SGM8942 are high-performance
CMOS operational amplifiers optimized for low supply
operation. These amplifiers are designed to operate on
single supplies from 1.8V to 5.5V. Applications include
sensor
amplification
and
signal
conditioning
in
battery-powered systems.
The SGM8941 and SGM8942 offer excellent CMRR
without
the
crossover
distortion
associated
with
traditional complimentary input stages. This results in
excellent linearity performance. The input common
mode range includes both the negative and positive
supplies.
The SGM8941/2 provide excellent overall performance.
They exhibit low noise and offset, making these devices
an excellent choice for high quality, low voltage or
battery powered systems.
The SGM8941 single is available in Green SOT-23-5
and SOIC-8 packages. The SGM8942 dual is available
in Green SOIC-8 and MSOP-8 packages. They are
specified over the extended -40℃ to +85℃ temperature
range.
FEATURES
Rail-to-Rail Input and Output
Low Noise: 38nV/
Hz
Supply Voltage Range: 1.8V to 5.5V
Low Input Offset Voltage: 0.15mV (TYP)
Gain-Bandwidth Product: 1.5MHz
Slew Rate: 0.8V/μs
Low Supply Current: 120μA/Amplifier (TYP)
Small Packaging:
SGM8941 Available in SOT-23-5 and SOIC-8 Packages
SGM8942 Available in MSOP-8 and SOIC-8 Packages
APPLICATIONS
Data Acquisition
Process Control
Active Filters
Test Equipment
Mobile Phone
Audio Processing
Video Processing
Headphone Amplifier
Portable Equipment
Broadband Communications
SG Micro Corp
www.sg-micro.com
REV. A
SGM8941/2
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
PACKAGE/ORDERING INFORMATION
MODEL
ORDER NUMBER
PACKAGE
DESCRIPTION
SOT-23-5
PACKAGE
OPTION
Tape and Reel, 3000
MARKING
INFORMATION
SBCXX
SGM
8941YS8
XXXXX
SGM8942
YMS8
XXXXX
SGM
8942YS8
XXXXX
SGM8941YN5G/TR
SGM8941
SGM8941YS8G/TR
SOIC-8
Tape and Reel, 2500
SGM8942YMS8G/TR
SGM8942
SGM8942YS8G/TR
MSOP-8
Tape and Reel, 3000
SOIC-8
Tape and Reel, 2500
NOTE:
XX
= Date Code.
XXXXX
= Date Code and Vendor Code.
MARKING INFORMATION
SBC X X
Date code - Month ("A" = Jan. "B" = Feb.
…
"L" = Dec.)
Date code - Year ("A" = 2010, "B" = 2011
…)
Chip I.D.
For example: SBCCA (2012, January)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +V
S
to -V
S
.....................................................6V
Input Common Mode Voltage Range
..........................................................(-V
S
) - 0.1V to (+V
S
) + 0.1V
Storage Temperature Range..............................-65℃ to +150℃
Junction Temperature .......................................................150℃
Operating Temperature Range........................... -40℃ to +85℃
Lead Temperature (Soldering 10sec)
...........................................................................................260℃
ESD Susceptibility
HBM..................................................................................8000V
MM .....................................................................................400V
NOTE:
Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at
these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay
attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because
very small parametric changes could cause the device not to
meet its published specifications.
SGMICRO reserves the right to make any change in circuit
design, specification or other related things if necessary without
notice at any time. Please contact SGMICRO sales office to get
the latest datasheet.
SG Micro Corp
www.sg-micro.com
2
SGM8941/2
PIN CONFIGURATIONS
(TOP VIEW)
SGM8941
OUT
-V
S
1
2
5
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
+V
S
+
+IN
3
-
4
-IN
SOT-23-5
SGM8941
NC
-IN
+IN
-V
S
1
2
3
4
8
NC
+V
S
OUT
NC
OUTA
-INA
+INA
-V
S
1
2
3
4
SGM8942
8
+V
S
OUTB
-INB
+INB
-
+
7
6
5
-
+
-
+
7
6
5
SOIC-8
NC = NO CONNECT
SOIC-8/MSOP-8
SG Micro Corp
www.sg-micro.com
3
SGM8941/2
(At T
A
= +25℃, V
OUT
= V
S
/2, unless otherwise noted.)
PARAMETER
DC PERFORMANCE
Input Offset Voltage (V
OS
)
Input Bias Current (I
B
)
Input Offset Current (I
OS
)
Input Offset Voltage Drift
V
CM
= V
S
/2
R
L
= 2kΩ, V
OUT
= 0.2V to 4.8V
Open-Loop Voltage Gain (A
OL
)
-40℃
≤
T
A
≤
+85℃
R
L
= 10kΩ, V
OUT
= 0.1V to 4.9V
-40℃
≤
T
A
≤
+85℃
INPUT CHARACTERISTICS
Input Common Mode Voltage Range (V
CM
)
Common Mode Rejection Ratio (CMRR)
OUTPUT CHARACTERISTICS
R
L
= 2kΩ
Output Voltage Swing from Rail
-40℃
≤
T
A
≤
+85℃
R
L
= 10kΩ
-40℃
≤
T
A
≤
+85℃
Output Short-Circuit Current (I
SC
)
POWER SUPPLY
Quiescent Current (per Amplifier)
Power Supply Rejection Ratio (PSRR)
DYNAMIC PERFORMANCE
Slew Rate (SR)
Crosstalk
Settling Time to 0.1% (t
S
)
Overload Recovery Time
NOISE/DISTORTION PERFORMANCE
Input Voltage Noise (e
n
)
f = 1kHz
(1)
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
ELECTRICAL CHARACTERISTICS: V
S
= +5V
CONDITIONS
V
CM
= V
S
/2
-40℃
≤
T
A
≤
+85℃
3
3
3
79
76
80
77
-0.1
V
CM
= -0.1V to 5.1V
-40℃
≤
T
A
≤
+85℃
74
71
75
17
26.5
19.0
120
77
72
1.5
0.8
110
2
3.5
38
85
178
205
35.0
90
110
35
55
90
5.1
V
dB
90
88
dB
MIN
TYP
0.15
MAX
0.9
1.6
UNITS
mV
pA
pA
µV/℃
mV
mV
mA
R
L
= 10Ω to V
S
/2
-40℃
≤
T
A
≤
+85℃
I
OUT
= 0mA
-40℃
≤
T
A
≤
+85℃
V
S
= +1.8V to +5.5V, V
CM
= 0.5V
-40℃
≤
T
A
≤
+85℃
C
L
= 100pF, R
L
= 2kΩ
V
OUT
= 2V
PP
, A
V
= 1
f = 1kHz
V
OUT
= 200mV
PP
, f = 1kHz, A
V
= 1,
C
L
= 100pF, R
L
= 2kΩ
R
L
= 2kΩ, A
V
= -50
μA
dB
Gain-Bandwidth Product (GBP)
MHz
V/μs
dB
μs
μs
nV/
Η
z
SG Micro Corp
www.sg-micro.com
4
SGM8941/2
(At T
A
= +25℃, V
OUT
= V
S
/2, unless otherwise noted.)
PARAMETER
DC PERFORMANCE
Input Offset Voltage (V
OS
)
Input Bias Current (I
B
)
Input Offset Current (I
OS
)
Input Offset Voltage Drift
V
CM
= V
S
/2
R
L
= 2kΩ, V
OUT
= 0.2V to 1.6V
Open-Loop Voltage Gain (A
OL
)
-40℃
≤
T
A
≤
+85℃
R
L
= 10kΩ, V
OUT
= 0.1V to 1.7V
-40℃
≤
T
A
≤
+85℃
INPUT CHARACTERISTICS
Input Common Mode Voltage Range (V
CM
)
Common Mode Rejection Ratio (CMRR)
OUTPUT CHARACTERISTICS
R
L
= 2kΩ
Output Voltage Swing from Rail
-40℃
≤
T
A
≤
+85℃
R
L
= 10kΩ
-40℃
≤
T
A
≤
+85℃
Output Short-Circuit Current (I
SC
)
POWER SUPPLY
Quiescent Current (per Amplifier)
DYNAMIC PERFORMANCE
Slew Rate (SR)
Crosstalk
Settling Time to 0.1% (t
S
)
Overload Recovery Time
NOISE/DISTORTION PERFORMANCE
Input Voltage Noise (e
n
)
f = 1kHz
(1)
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
ELECTRICAL CHARACTERISTICS: V
S
= +1.8V
CONDITIONS
V
CM
= V
S
/2
-40℃
≤
T
A
≤
+85℃
3
3
3.4
76
73
83
80
-0.1
V
CM
= -0.1V to 1.9V
-40℃
≤
T
A
≤
+85℃
69
66
42
9
2.0
1.1
105
168
200
1.4
0.8
110
2
2.5
36
5.0
62
72
25
45
85
1.9
V
dB
105
88
dB
MIN
TYP
0.22
MAX
0.9
1.55
UNITS
mV
pA
pA
µV/℃
mV
mV
mA
R
L
= 10Ω to V
S
/2
-40℃
≤
T
A
≤
+85℃
I
OUT
= 0mA
-40℃
≤
T
A
≤
+85℃
C
L
= 100pF, R
L
= 2kΩ
V
OUT
= 1V
PP
, A
V
= 1
f = 1kHz
V
OUT
= 200mV
PP
, f = 1kHz, A
V
= 1,
C
L
= 100pF, R
L
= 2kΩ
R
L
= 2kΩ, A
V
= -50
μA
Gain-Bandwidth Product (GBP)
MHz
V/μs
dB
μs
μs
nV/
Η
z
NOTE 1: Correct power supply bypassing is very important for optimizing SGM8941/2 performance. A 0.1µF and a 10µF capacitors
are always used to bypass V
S
pin of SGM8941/2. Please place these two capacitors as close to the SGM8941/2 V
S
pin as possible. A
large ground plane is also needed to ensure optimum performance.
SG Micro Corp
www.sg-micro.com
5
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