SGM721/2/3/4
970µA, 10MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PRODUCT DESCRIPTION
The SGM721 (single), SGM722 (dual), SGM723 (single
with shutdown) and SGM724 (quad) are low noise, low
voltage, and low power operational amplifiers, that can
be designed into a wide range of applications. The
SGM721/2/3/4 have a high Gain- Bandwidth Product of
10MHz, a slew rate of 8.5V/µs, and a quiescent current of
0.97mA/amplifier at 5V. The SGM723 has a power-down
disable feature that reduces the supply current to 160nA.
The SGM721/2/3/4 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 4mV for
SGM721/2/3/4. 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, SGM721 is available in Green
SC70-5, SOT-23-5 and SOIC-8 packages. SGM723 is
available in Green SOT-23-6 and SOIC-8 packages. The
dual version SGM722 is available in Green SOIC-8 and
MSOP-8 packages. The quad version SGM724 is
available in Green SOIC-14 and TSSOP-14 packages.
FEATURES
•
Low Cost
•
Rail-to-Rail Input and Output
1mV Typical V
OS
•
High Gain-Bandwidth Product: 10MHz
•
High Slew Rate: 8.5V/µs
•
Settling Time to 0.1% with 2V Step: 0.36µs
•
Overload Recovery Time: 0.4µs
•
Low Noise : 8nV/
Hz
•
Operates on 2.5V to 5.5V Supplies
•
Input Voltage Range = -0.1V to +5.6V with V
S
= 5.5V
•
Low Power
0.97mA/Amplifier Typical Supply Current
SGM723 160nA when Disabled
•
Small Packaging
SGM721 Available in SC70-5, SOT-23-5 and SOIC-8
SGM722 Available in MSOP-8 and SOIC-8
SGM723 Available in SOT-23-6 and SOIC-8
SGM724 Available in TSSOP-14 and SOIC-14
PIN CONFIGURATIONS
(Top View)
SGM721
OUT
-V
S
1
2
4
SC70-5 / SOT-23-5
-IN
5
+V
S
NC
-IN
+IN
-V
S
1
2
3
4
SGM721/723
8
7
6
5
NC = NO CONNECT
DISABLE
(SGM723 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
OUT A
-IN A
+IN A
+IN 3
SGM723
723
OUT
-V
S
+IN
1
2
3
6
+V
S
SOIC-8
5 DISABLE
OUT A
4
-IN
-IN A
+IN A
+V
S
8
7
6
5
SOIC-8 / MSOP-8
+V
S
OUT B
-IN B
+IN B
+IN B
-IN B
OUT B
1
2
3
4
5
6
7
SGM724
14 OUT D
13
-IN D
SOT-23-6
12 +IND
11 -V
S
10 +INC
9
8
TSSOP-14 / SOIC-14
-IN C
OUT C
SGM722
1
2
3
-V
S
4
SG Micro Limited
www.sg-micro.com
REV. B. 2
SGM721/2/3/4
970µA, 10MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
PACKAGE/ORDERING INFORMATION
MODEL
ORDER NUMBER
SGM721XC5/TR
SGM721
SGM721XN5/TR
SGM721XS/TR
SGM722
SGM723
SGM724
SGM722XMS/TR
SGM722XS/TR
SGM723XN6/TR
SGM723XS/TR
SGM724XS14/TR
SGM724XTS14/TR
PACKAGE
DESCRIPTION
SC70-5
SOT-23-5
SOIC-8
MSOP-8
SOIC-8
SOT-23-6
SOIC-8
SOIC-14
TSSOP-14
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
721
721
SGM721XS
SGM722XMS
SGM722XS
723
SGM723XS
SGM724XS14
SGM724XTS14
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V-......................................................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
NOTE
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating
only; functional operation of the device at these or any other conditions above those indicated in the operational section of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
SOT-23-6,
θ
JA
.............................................................. 190℃/W
SOIC-8,
θ
JA
....................................................................125℃/W
MSOP-8,
θ
JA
............................................................... 216℃/W
Lead Temperature Range (Soldering 10 sec).................260℃
ESD Susceptibility
HBM...............................................................................1500V
MM...................................................................................400V
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 last datasheet.
SG Micro Limited
www.sg-micro.com
2
SGM721/2/3/4
970µA, 10MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS: V
S
= +5V
(At T
A
= +25℃, V
CM
= Vs/2, R
L
= 600Ω, unless otherwise noted.)
SGM721/2/3/4
PARAMETER
CONDITIONS
TYP
+25℃
INPUT CHARACTERISTICS
Input Offset Voltage (V
OS
)
Input Bias Current (I
B
)
Input Offset Current (I
OS
)
Common-Mode Voltage Range (V
CM
)
Common-Mode Rejection Ratio (CMRR)
Open-Loop Voltage Gain (A
OL
)
Input Offset Voltage Drift (∆V
OS
/∆
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
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio (PSRR)
Quiescent Current/ Amplifier (I
Q
)
Supply Current when Disabled
(SGM723 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 = 10kHz
f = 1kHz
8
6.4
10
nV/
nV/
fA/
Hz
Hz
Hz
MIN/MAX OVER TEMPERATURE
+25℃
0℃ to
70℃
4.5
-40℃ to
85℃
4.75
-40℃ to
125℃
5
UNITS
MIN/
MAX
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
TYP
TYP
MIN
TYP
TYP
TYP
MAX
MIN
MIN
MAX
MIN
MAX
MAX
1
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
91
86
90
100
2.1
0.1
0.015
57
5.7
2.2
0.8
4
mV
pA
pA
V
dB
dB
dB
dB
µV/
℃
V
V
mA
Ω
µs
µs
V
V
75
64
84
95
74
64
81
90
73
63
80
88
72.5
62
72
77
R
L
= 600Ω
R
L
= 10kΩ
F = 1MHz, G = +1
53
52
50
45
0.8
2
2.5
5.5
V
s
= +2.5V to +5.5V
V
CM
= (-V
S
) + 0.5V
I
OUT
= 0
100
0.97
0.16
R
L
= 600Ω
10
63.5
400
8.5
0.36
0.4
80
1.13
1
2.5
5.5
79
1.25
2.5
5.5
78
1.28
2.5
5.5
77
1.38
V
V
dB
mA
µA
＜1%
distortion
G = +1, 2V Output Step
G = +1, 2V Output Step
V
IN
·Gain = Vs
MHz
TYP
degrees TYP
kHz
TYP
V/µs
µs
µs
TYP
TYP
TYP
TYP
TYP
TYP
SG Micro Limited
www.sg-micro.com
3
SGM721/2/3/4
970µA, 10MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
CM
= Vs/2, R
L
= 600Ω, unless otherwise noted.
Output Impedance vs. Frequency
100
Output Impedance (Ω)
V
S
= 5V
Closed-Loop Output Voltage Swing
6
Output Voltage (V
P-P
)
5
4
3
2
1
0
10
100
1000
Frequency (kHz)
10000
V
S
= 5V
V
IN
= 4.9V
P-P
T
A
= 25℃
R
L
= 2kΩ
G = +1
80
60
40
20
0
1
10
100
1000
Frequency (kHz)
10000
G = 100
G = 10
G=1
Positive Overload Recovery
Negative Overload Recovery
+2.5V
0V
0V
-50mV
V
S
= ±2.5V
R
L
= 1kΩ
V
IN
= 50mV
G = 100
0V
0V
+2.5V
-50mV
V
S
= ±2.5V
R
L
= 10kΩ
V
IN
= 50mV
G = 100
Time (500ns/div)
Time (500ns/div)
Large-Signal Step Response
V
S
= 5V
G = +1
C
L
= 200pF
R
L
= 10kΩ
Small-Signal Step Response
V
S
= 5V
G = +1
C
L
= 100pF
R
L
= 10kΩ
Time (500ns/div)
Voltage (50mV/div)
Voltage (1V/div)
Time (200ns/div)
SG Micro Limited
www.sg-micro.com
4
SGM721/2/3/4
970µA, 10MHz, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
CM
= Vs/2, R
L
= 600Ω, unless otherwise noted.
PSRR vs. Frequency
120
V
S
= 5V
100
PSRR (dB)
80
60
40
20
1
10
100
1000
Frequency (kHz)
10000
CMRR vs. Frequency
120
110
100
CMRR (dB)
90
80
70
60
50
40
1
10
100
1000
Frequency (kHz)
10000
V
S
= 5V
Small-Signal Overshoot vs. Load Capacitance
70
Small-Signal Overshoot (%)
60
50
40
30
20
10
0
1
10
100
Load Capacitance (pF)
1000
V
S
= 5V
R
L
= 10kΩ
T
A
= 25℃
G=1
+OS
-OS
Input Voltage Noise Spectral Density vs. Frequency
100
Voltage Noise (nV/√Hz)
V
S
= 5V
R
L
= 620Ω
10
1
10
100
1000
10000
Frequency(Hz)
Channel Separation vs. Frequency
130
Channel Separation (dB)
Open-Loop Gain vs. Temperature
120
Open–Loop Gain (dB)
110
100
90
80
70
R
L
= 10kΩ
120
110
100
90
80
70
0.1
1
V
S
= 5V
R
L
= 620Ω
T
A
= 25℃
G=1
R
L
= 600Ω
1k
10k
10
100
1000 10000
100k
10000
0
Frequency (kHz)
-50 -30 -10 10
30
50
70
90 110 130
Temperature (℃)
SG Micro Limited
www.sg-micro.com
5
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