SGM8621/2/3/4
250μA, 3MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PRODUCT DESCRIPTION
The SGM8621 (single), SGM8622 (dual), SGM8623
(single with shutdown) and SGM8624 (quad) are low
noise, low voltage, and low power
operational amplifiers,
that can be designed into a wide range of applications.
The SGM8621/2/3/4 have a high gain-bandwidth product
of 3MHz, a slew rate of 1.7V/μs, and a quiescent current
of 250μA/amplifier at 5V. The SGM8623 has a
power-down disable feature that reduces the supply
current to 150nA.
The SGM8621/2/3/4 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 is 3mV for
SGM8621/2/3/4. They are specified over the extended
industrial temperature range (-40
℃
to +125
℃
). The
operating range is from 2.5V to 5.5V.
The single version, SGM8621/8623, is available in Green
SC70-5, SOIC-8 and SOT-23-5(6) packages. The dual
version SGM8622 is available in Green SOIC-8 and
MSOP-8 packages. The quad version SGM8624 is
available in Green SOIC-14 and TSSOP-14 packages.
FEATURES
Low Cost
Rail-to-Rail Input and Output
0.7mV Typical V
OS
High Gain-Bandwidth Product: 3MHz
High Slew Rate: 1.7V/μs
Settling Time to 0.1% with 2V Step: 2.1μs
Overload Recovery Time: 1μs
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
250μA/Amplifier (TYP)
150nA Shutdown Current for SGM8623
Small Packaging
SGM8621 Available in SC70-5, SOT-23-5 and
SOIC-8
SGM8622 Available in MSOP-8 and SOIC-8
SGM8623 Available in SOT-23-6 and SOIC-8
SGM8624 Available in TSSOP-14 and SOIC-14
PIN CONFIGURATIONS
(TOP VIEW)
SGM8621
OUT 1
-V
S
2
4
SOT-23-5 /SC70-5
-IN
5
+V
S
NC 1
-IN
+IN
2
3
SGM8621/8623
8
7
6
5
NC = NO CONNECT
DISABLE
(SGM8623 ONLY)
+V
S
OUT
NC
APPLICATIONS
Sensors
Audio
Active Filters
A/D Converters
Communications
Test Equipment
Cellular and Cordless Phones
Laptops and PDAs
Photodiode Amplification
Battery-Powered Instrumentation
+IN 3
-V
S
4
SGM8623
8623
OUT
-V
S
+IN
1
2
3
SOT-23-6
6
+V
S
OUT A
-IN A
-IN
+IN A
+V
S
+IN B
8
7
6
5
SOIC-8 / MSOP-8
+V
S
-IN B
3
4
5
6
7
1
2
SOIC-8
SGM8624
14 OUT D
13
-IN D
5 DISABLE
4
12 +IN D
11 -V
S
10 +IN C
9
8
TSSOP-14 / SOIC-14
-IN C
OUT C
SGM8622
OUT A
-IN A
+IN A
1
2
3
OUT B OUT B
-IN B
+IN B
-V
S
4
SG Micro Corp
www.sg-micro.com
REV. B. 3
SGM8621/2/3/4
PACKAGE/ORDERING INFORMATION
MODEL
ORDER NUMBER
SGM8621XC5/TR
SGM8621
SGM8621XN5/TR
SGM8621XS/TR
SGM8622
SGM8623
SGM8624
SGM8622XMS/TR
SGM8622XS/TR
SGM8623XN6/TR
SGM8623XS/TR
SGM8624XS14/TR
SGM8624XTS14/TR
PACKAGE
DESCRIPTION
SC70-5
SOT-23-5
SOIC-8
MSOP-8
SOIC-8
SOT-23-6
SOIC-8
SOIC-14
TSSOP-14
250μA, 3MHz, 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
8621
8621
SGM8621XS
SGM8622XMS
SGM8622XS
8623
SGM8623XS
SGM8624XS14
SGM8624XTS14
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
SGM8621/2/3/4
(At T
A
= +25℃, V
CM
= V
S
/2, R
L
= 600Ω, unless otherwise noted.)
250μA, 3MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS: V
S
= +5V
SGM8621/2/3/4
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
(SGM8623 ONLY)
Turn-On Time
Turn-Off Time
DISABLE
Voltage-Off
DISABLE
Voltage-On
MIN/MAX OVER TEMPERATURE
+25℃
0℃ to -40℃ to
70℃
85℃
-40℃ to
125℃
UNITS
MIN/MAX
0.7
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, Vo = 0.15V to 4.85V
R
L
= 10kΩ , Vo = 0.05V to 4.95V
-0.1 to +5.6
90
92
100
110
2.7
R
L
= 600Ω
R
L
= 10kΩ
f = 100kHz, G = +1
0.1
0.015
48
2.6
3
3.1
3.3
3.5
mV
pA
pA
V
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
TYP
TYP
MIN
TYP
75
66
92
100
74
65
90
99
73
65
89
98
73
64
78
82
dB
dB
dB
dB
μV/℃
V
V
45
42
40
30
mA
Ω
6.2
1.4
0.8
2
2.5
5.5
V
S
= +2.5V to +5.5V
V
CM
= (-V
S
) + 0.5V
94
250
150
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
f = 1kHz
f = 1kHz
3
67
50
1.7
2.1
1
12
3
79
300
78
345
77
350
76
380
2.5
5.5
2.5
5.5
2.5
5.5
ns
ns
V
V
V
V
dB
μA
nA
MHz
Degrees
kHz
V/μs
μs
μs
nV/
fA/
TYP
TYP
MAX
MIN
MIN
MAX
MIN
MAX
MAX
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio (PSRR)
Quiescent Current/Amplifier (I
Q
)
Supply Current when Disabled
(SGM8623 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
)
Hz
Hz
I
OUT
= 0
SG Micro Corp
www.sg-micro.com
3
SGM8621/2/3/4
At T
A
= +25℃, V
CM
= V
S
/2, R
L
= 600Ω, unless otherwise noted.
Closed-Loop Output Voltage Swing
6
Output Voltage (V
p-p
)
5
4
3
2
1
0
10
100
1000
Frequency (kHz)
Positive Overload Recovery
V
S
=
±2.5V
V
IN
= 50mV
R
L
= 620Ω
G = 100
2.5V
0V
0V
-50mV
0V
0V
250μA, 3MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
Output Impedance vs. Frequency
140
120
Output Impedance (Ω)
100
80
60
40
20
0
0.1
1
G = 10
G = 100
G=1
V
S
= 5V
V
S
= 5V
V
IN
= 4.9V
P-P
T
A
= 25℃
R
L
= 10kΩ
G=1
10000
10
100
Frequency (kHz)
1000
10000
Negative Overload Recovery
V
S
=
±2.5V
V
IN
= 50mV
R
L
= 620Ω
G = 100
2.5V
-50mV
Time (5μs/div)
Time (1μs/div)
Large-Signal Step Response
V
S
= 5V
G = +1
C
L
= 100pF
R
L
= 620Ω
Voltage (1V/div)
Small-Signal Step Response
V
S
= 5V
G = +1
C
L
= 100pF
R
L
= 620Ω
Time (100μs/div)
Voltage (50mV/div)
Time (100μs/div)
SG Micro Corp
www.sg-micro.com
4
SGM8621/2/3/4
At T
A
= +25℃, V
CM
= V
S
/2, R
L
= 600Ω, unless otherwise noted.
PSRR vs. Frequency
120
V
S
= 5V
100
PSRR (dB)
80
60
40
20
1
10
100
Frequency (kHz)
1000
CMRR (dB)
250μA, 3MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
CMRR vs. Frequency
110
100
90
80
70
60
50
40
30
20
0.01
0.1
1
10
Frequency (kHz)
100
1000
V
S
= 5V
Small-Signal Overshoot vs. Load Capacitance
70
Small-Signal Overshoot (%)
60
50
40
30
20
10
0
1
10
100
1000
Load Capacitance (pF)
10000
+OS
-OS
V
S
= 5V
R
L
= 10kΩ
T
A
= 25℃
G=1
140
Channel Separation (dB)
130
120
110
100
90
80
0.1
Channel Separation vs. Frequency
V
S
= 5V
R
L
= 620Ω
T
A
= 25℃
G=1
1
10
Frequency (kHz)
100
1000
CMRR vs. Temperature
120
110
CMRR (dB)
100
90
80
70
60
-50 -30 -10 10
30
50
70
90 110 130
Temperature (℃)
V
CM
= - 0.1V to 5.6V
V
S
= 5.5V
V
CM
= - 0.1V to 4V
PSRR (dB)
PSRR vs. Temperature
120
110
100
90
80
70
60
-50 -30 -10 10
30
50
70
90 110 130
Temperature (℃)
V
S
= 2.5V to 5.5V
SG Micro Corp
www.sg-micro.com
5
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