SGM8631/2/3
6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PRODUCT DESCRIPTION
The SGM8631 (single), SGM8632 (dual) and SGM8633
(single with shutdown) are low noise, low voltage, and
low power operational amplifiers that can be designed
into a wide range of applications. The SGM8631/2/3
have a high gain-bandwidth product of 6MHz and a
slew rate of 3.7V/μs. The SGM8633 has a power-down
disable feature that reduces the supply current to less
than 1μA.
The SGM8631/2/3 are designed to provide optimal
performance in low voltage and low noise systems. They
provide rail-to-rail output swing into heavy loads. The
input common mode voltage range includes ground, and
the maximum input offset voltage is 3.5mV for
SGM8631/2/3. They are specified over the extended
industrial temperature range (-40℃ to +125℃). The
operating supply range is from 2V to 5.5V.
The SGM8631 single is available in Green SC70-5,
SOT-23-5 and SOIC-8 packages. The SGM8632 dual
is available in Green SOIC-8 and MSOP-8 packages.
The SGM8633 single with shutdown is available in
Green SOT-23-6 and SOIC-8 packages.
FEATURES
Rail-to-Rail Input and Output
3.5mV Maximum V
OS
High Gain-Bandwidth Product: 6MHz
High Slew Rate: 3.7V/μs
Settling Time to 0.1% with 2V Step: 0.5μs
Overload Recovery Time: 0.9μs
Low Noise: 13nV/
Hz
at 1kHz
Supply Voltage Range: 2V to 5.5V
Input Voltage Range: -0.1V to +5.6V with V
S
= 5.5V
Low Supply Current
SGM8631/3: 570μA
(TYP)
SGM8632: 480μA/Amplifier
(TYP)
Less than 1μA Shutdown Current for SGM8633
Small Packaging
SGM8631 Available in Green SC70-5, SOT-23-5
and SOIC-8
SGM8632 Available in Green MSOP-8 and
SOIC-8
SGM8633 Available in Green SOT-23-6 and
SOIC-8
APPLICATIONS
Sensors
Audio
Active Filters
A/D Converters
Communications
Test Equipment
Cellular and Cordless Phones
Laptops and PDAs
Photodiode Amplification
Battery-Powered Instrumentation
SG Micro Corp
www.sg-micro.com
REV. C. 3
SGM8631/2/3
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SC70-5
SGM8631
SOT-23-5
SOIC-8
MSOP-8
SGM8632
SOIC-8
SOT-23-6
SGM8633
SOIC-8
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
ORDERING
NUMBER
6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PACKAGE
MARKING
8631
8631
SGM8631XS
XXXXX
SGM8632
XMS
XXXXX
SGM8632XS
XXXXX
8633
SGM8633XS
XXXXX
PACKING
OPTION
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 2500
Tape and Reel, 3000
Tape and Reel, 2500
Tape and Reel, 3000
Tape and Reel, 2500
SGM8631XC5/TR
SGM8631XN5/TR
SGM8631XS/TR
SGM8632XMS/TR
SGM8632XS/TR
SGM8633XN6/TR
SGM8633XS/TR
NOTE: XXXXX = Date Code and Vendor Code.
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
Supply Voltage, +V
S
to -V
S
................................................ 6V
Input Common Mode Voltage Range
.................................................... (-V
S
) - 0.3V to (+V
S
) + 0.3V
Storage Temperature Range ........................ -65℃ to +150℃
Junction Temperature .................................................+150℃
Package Thermal Resistance @ T
A
= 25℃
SC70-5,
θ
JA
.............................................................. 333℃/W
SOT-23-5,
θ
JA
.......................................................... 190℃/W
SOT-23-6,
θ
JA
.......................................................... 190℃/W
SOIC-8,
θ
JA
.............................................................. 125℃/W
MSOP-8,
θ
JA
............................................................ 216℃/W
Lead Temperature (Soldering 10sec)
....................................................................................+260℃
ESD Susceptibility
HBM (SGM8631/2) ...................................................... 8000V
HBM (SGM8633) ......................................................... 4000V
MM ................................................................................. 400V
CDM ............................................................................ 1000V
ABSOLUTE MAXIMUM RATINGS
OVERSTRESS CAUTION
Stresses beyond those listed may cause permanent damage
to the device. Functional operation of the device at these or
any other conditions beyond those indicated in the
operational section of the specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
ESD SENSITIVITY 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.
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range ..................... -40℃ to +125℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, specification or other related things if
necessary without notice at any time.
SG Micro Corp
www.sg-micro.com
2
SGM8631/2/3
PIN CONFIGURATIONS
SGM8631 (TOP VIEW)
NC
6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
SGM8631/8633
(TOP VIEW)
1
2
3
4
8
7
6
5
DISABLE
(SGM8633 ONLY)
+V
S
OUT
NC
OUT
-V
S
1
2
5
+V
S
-IN
+IN
+IN
3
4
-IN
-V
S
NC = NO CONNECT
SC70-5/SOT-23-5
SGM8633 (TOP VIEW)
OUTA
OUT
-V
S
+IN
1
2
3
6
5
4
+V
S
SOIC-8
SGM8632
(TOP VIEW)
1
2
3
4
8
7
6
5
+V
S
OUTB
-INB
+INB
-INA
DISABLE
+INA
-IN
-V
S
SOT-23-6
SOIC-8/MSOP-8
SG Micro Corp
www.sg-micro.com
3
SGM8631/2/3
ELECTRICAL CHARACTERISTICS
(At T
A
= +25℃, V
S
= +5V, V
CM
= V
S
/2, R
L
= 600Ω,
unless otherwise noted.)
6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
SGM8631/2/3
PARAMETER
CONDITIONS
TYP
+25℃
INPUT CHARACTERISTICS
Input Offset Voltage (V
OS
)
Input Bias Current (I
B
)
Input Offset Current (I
OS
)
Input Common Mode Voltage Range
(V
CM
)
Common Mode Rejection Ratio
(CMRR)
Open-Loop Voltage Gain (A
OL
)
Input Offset Voltage Drift (ΔV
OS
/ΔT)
OUTPUT CHARACTERISTICS
Output Voltage Swing from Rail
Output Current (I
OUT
)
Closed-Loop Output Impedance
f = 200kHz, G = 1
R
L
= 600Ω
R
L
= 10kΩ
0.079
0.007
58
5.4
40
30
26
V
V
mA
Ω
TYP
TYP
MIN
TYP
V
S
= 5.5V
V
S
= 5.5V, V
CM
= -0.1V to 4V
V
S
= 5.5V, V
CM
= -0.1V to 5.6V
R
L
= 600Ω, V
O
= 0.15V to 4.85V
R
L
= 10kΩ
, V
O
= 0.05V to 4.95V
0.9
1
1
-0.1 to 5.6
84
76
86
103
2.4
79
73
69
68
67
66
3.5
3.7
3.8
mV
pA
pA
V
dB
dB
dB
dB
μV/℃
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
+25℃
MIN/MAX OVER TEMPERATURE
-40℃ to
+85℃
-40℃ to
+125℃
UNITS
MIN/
MAX
POWER-DOMN DISABLE (SGM8633 ONLY)
Turn-On Time
Turn-Off Time
DISABLE
Voltage-Off
DISABLE
Voltage-On
1.3
0.4
0.8
2
μs
μs
V
V
TYP
TYP
MAX
MIN
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio (PSRR)
Quiescent Current/
Amplifier (I
Q
)
SGM8632
SGM8631/3
V
S
= 2V to 5.5V,
V
CM
= (-V
S
) + 0.5V
I
OUT
= 0
I
OUT
= 0
2
5.5
84
480
570
0.5
2
5.5
69
620
720
8
2
5.5
68
720
820
9
2
5.5
67
790
880
10
V
V
dB
μA
μA
μA
MIN
MAX
MIN
MAX
MAX
MAX
Supply Current when Disabled
(SGM8633 only)
DYNAMIC PERFORMANCE
Gain-Bandwidth Product (GBP)
Phase Margin (φ
O
)
Full Power Bandwidth (BW
P
)
Slew Rate (SR)
Settling Time to 0.1% (t
S
)
Overload Recovery Time
NOISE PERFORMANCE
Voltage Noise Density (e
n
)
f = 1kHz
<1% distortion
G=1, 2V output step
G=1, 2V output step
V
IN
× Gain = V
S
6
63
250
3.7
0.5
0.9
13
MHz
°
kHz
V/μs
μs
μs
TYP
TYP
TYP
TYP
TYP
TYP
TYP
nV/
Hz
SG Micro Corp
www.sg-micro.com
4
SGM8631/2/3
At T
A
= +25℃, V
CM
= V
S
/2, R
L
= 600Ω,
unless otherwise noted.
CMRR vs. Frequency
6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
PSRR vs. Frequency
120
100
CMRR (dB)
V
S
= 5V
120
100
80
60
40
20
V
S
= 5V
PSRR (dB)
80
60
40
20
0
0.01
PSRR-
PSRR+
0.1
1
10
Frequency (kHz)
100
1000
0
0.01
0.1
1
10
Frequency (kHz)
100
1000
150
120
90
60
30
0
0.1
Channel Separation vs. Frequency
150
120
90
Channel Separation vs. Frequency
Channel A to B
Channel B to A
Channel Separation (dB)
Channel B to A
Channel Separation (dB)
Channel A to B
60
30
0
V
S
= 5V
R
L
=
620Ω
T
A
= +25℃
G=1
0.1
1
10
Frequency (kHz)
100
1000
V
S
= 2V
R
L
=
620Ω
T
A
= +25℃
G=1
1
10
Frequency (kHz)
100
1000
2.5
2
Closed-Loop Output Voltage Swing
6
5
Output Voltage (V
P-P
)
4
3
2
1
0
10
Closed-Loop Output Voltage Swing
Output Voltage (V
P-P
)
1.5
1
0.5
0
10
100
1000
Frequency (kHz)
10000
V
S
= 2V
V
IN
= 2V
P-P
T
A
= +25℃
R
L
= 10kΩ
G=1
V
S
= 5V
V
IN
= 4.9V
P-P
T
A
= +25℃
R
L
=
10kΩ
G=1
100
1000
Frequency (kHz)
10000
SG Micro Corp
www.sg-micro.com
5
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