SGM8631/2/3/4
470μA, 6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PRODUCT DESCRIPTION
The SGM8631 (single), SGM8632 (dual), SGM8633 (single
with shutdown) and SGM8634 (quad) are low noise, low
voltage, and low power operational amplifiers, that can
be designed into a wide range of applications. The
SGM8631/2/3/4 have a high gain-bandwidth product of
6MHz, a slew rate of 3.7V/μs, and a quiescent current of
470μA/amplifier at 5V. The SGM8633 has a power-down
disable feature that reduces the supply current to 90nA.
The SGM8631/2/3/4 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 are 3.5mV for
SGM8631/2/3/4. They are specified over the extended
industrial temperature range (-40
℃
to +125
℃
). The
operating range is from 2.5V 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. The SGM8634 quad is
available in Green TSSOP-14 and SOIC-14 packages.
FEATURES
Low Cost
Rail-to-Rail Input and Output
0.8mV Typical V
OS
High Gain-Bandwidth Product: 6MHz
High Slew Rate: 3.7V/μs
Settling Time to 0.1% with 2V Step: 2.1μs
Overload Recovery Time: 0.9μs
Low Noise: 12nV/
Hz
Supply Voltage Range:
2.5V to 5.5V
Input Voltage Range: -0.1V to +5.6V with V
S
= 5.5V
Low Supply Current
470μA/Amplifier (TYP)
90nA Shutdown Current for SGM8633
Small Packaging
SGM8631 Available in SC70-5, SOT-23-5 and
SOIC-8
SGM8632 Available in MSOP-8 and SOIC-8
SGM8633 Available in SOT-23-6 and SOIC-8
SGM8634 Available in TSSOP-14 and SOIC-14
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
SGM8631/2/3/4
PACKAGE/ORDERING INFORMATION
MODEL
ORDER NUMBER
SGM8631XC5/TR
SGM8631
SGM8631XN5/TR
SGM8631XS/TR
SGM8632
SGM8633
SGM8634
SGM8632XMS/TR
SGM8632XS/TR
SGM8633XN6/TR
SGM8633XS/TR
SGM8634XS14/TR
SGM8634XTS14/TR
PACKAGE
DESCRIPTION
SC70-5
SOT-23-5
SOIC-8
MSOP-8
SOIC-8
SOT-23-6
SOIC-8
SOIC-14
TSSOP-14
470μA, 6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PACKAGE
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
Tape and Reel, 2500
Tape and Reel, 3000
MARKING
INFORMATION
8631
8631
SGM8631XS
SGM8632XMS
SGM8632XS
8633
SGM8633XS
SGM8634XS14
SGM8634XTS14
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +V
S
to -V
S
................................................. 7.5V
Common Mode Input Voltage…..…..(-V
S
) - 0.5V to (+V
S
) + 0.5V
Storage Temperature Range..............................-65℃ to +150℃
Junction Temperature........................................................160℃
Operating Temperature Range..........................-55℃ to +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..................................................................................1500V
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
SGM8631/2/3/4
470μA, 6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PIN CONFIGURATIONS
(TOP VIEW)
SGM8631
OUT 1
-V
S
2
4 -IN
SOT-23-5/SC70-5
SGM8631/8633
5 +V
S
NC
-IN
+IN
-V
S
1
2
3
4
8 DISABLE
(SGM8633 ONLY)
7 +V
S
6
5
NC = NO CONNECT
SOIC-8
+IN 3
OUT
NC
SGM8633
8633
OUT 1
-V
S
2
+IN 3
SOT-23-6
6 +V
S
5 DISABLE
4 -IN
SGM8634
OUTA 1
-INA 2
+INA 3
+V
S
4
+INB 5
14 OUTD
13 -IND
12 +IND
11 -V
S
10 +INC
9
-INC
SGM8632
OUTA 1
-INA 2
+INA 3
-V
S
4
SOIC-8/MSOP-8
8
7
6
5
+V
S
-INB 6
OUTB
-INB
TSSOP-14/SOIC-14
OUTB 7
8 OUTC
+INB
SG Micro Corp
www.sg-micro.com
3
SGM8631/2/3/4
(At T
A
= +25℃, V
CM
= V
S
/2, R
L
= 600Ω, unless otherwise noted.)
470μA, 6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS: V
S
= +5V
SGM8631/2/3/4
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
/Δ
T
)
OUTPUT CHARACTERISTICS
Output Voltage Swing from Rail
Output Current (I
OUT
)
Closed-Loop Output Impedance
POWER-DOWN DISABLE
Turn-On Time
Turn-Off Time
DISABLE
Voltage-Off
DISABLE
Voltage-On
MIN/MAX OVER TEMPERATURE
+25℃
0℃ to
70℃
-40℃ to
85℃
-40℃ to
125℃
UNITS
MIN /
MAX
0.8
1
1
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
-0.1 to
+5.6
90
83
97
108
2.4
R
L
= 600Ω
R
L
= 10kΩ
f = 200kHz, G = 1
0.1
0.015
53
3
4
1.2
3.5
3.9
4.3
4.6
mV
pA
pA
V
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
TYP
TYP
MIN
TYP
TYP
TYP
MAX
MIN
MIN
MAX
MIN
MAX
MAX
73
90
70
87
70
86
65
79
dB
dB
dB
dB
μV/℃
V
V
49
45
40
35
mA
Ω
μs
μs
0.8
2
2.5
5.5
V
S
= +2.5V to +5.5V
V
CM
= (-V
S
) + 0.5V
I
OUT
= 0
91
470
90
74
650
2.5
5.5
72
727
2.5
5.5
72
750
2.5
5.5
68
815
V
V
V
V
dB
μA
nA
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio (PSRR)
Quiescent Current/Amplifier (I
Q
)
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
)
Current Noise Density (i
n
)
f = 1kHz
f = 1kHz
12
3
nV/
fA/
Hz
Hz
R
L
= 10kΩ
＜1%
distortion, R
L
= 600Ω
G = +1, 2V Step, R
L
= 10kΩ
G = +1, 2V Step, R
L
= 600Ω
V
IN
·Gain = V
S
, R
L
= 600Ω
6
60
250
3.7
2.1
0.9
MHz
degrees
kHz
V/μs
μs
μs
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
SG Micro Corp
www.sg-micro.com
4
SGM8631/2/3/4
At T
A
= +25℃, V
CM
= V
S
/2, R
L
= 600Ω, unless otherwise noted.
Closed-Loop Output Voltage Swing
6
5
Output Voltage (V
p-p
)
4
3
2
1
0
10
100
1000
Frequency (kHz)
10000
140
Output Impedance (Ω)
470μA, 6MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
Output Impedance vs. Frequency
120
100
80
60
40
20
0
1
10
100
1000
Frequency (kHz)
10000
G = 100
V
S
= 5V
V
S
= 5V
V
IN
= 4.9V
P-P
T
A
= 25℃
R
L
= 10kΩ
G=1
G = 10
G=1
Positive Overload Recovery
Negative Overload Recovery
0V
V
IN
V
OUT
V
S
= ±2.5V
V
IN
= -200mV
P-P
(RET to GND)
C
L
= 0pF
Time (0.3µs/div)
200mV
/div
1V
/div
V
IN
0V
0V
V
OUT
V
S
= ±2.5V
V
IN
= +200mV
P-P
(RET to GND)
C
L
= 0pF
Time (0.3µs/div)
200mV
/div
1V
/div
0V
R
L
= 10kΩ
G = 100
R
L
= 10kΩ
G = 100
Large-Signal Step Response
V
S
= 5V
G = +1
C
L
= 100pF
R
L
= 10kΩ
Small-Signal Step Response
V
S
= 5V
G = +1
C
L
= 100pF
R
L
= 10kΩ
Time (1μs/div)
Voltage (50mV/div)
Voltage (1V/div)
Time (1μs/div)
SG Micro Corp
www.sg-micro.com
5
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