SGM321/SGM358/SGM324
1MHz, 60μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
GENERAL DESCRIPTION
The SGM321 (single), SGM358 (dual) and SGM324
(quad) are low cost, rail-to-rail input and output voltage
feedback amplifiers. They have a wide input common
mode voltage range and output voltage swing, and take
the minimum operating supply voltage down to 2.1V.
The maximum recommended supply voltage is 5.5V.
All are specified over the extended -40℃ to +85℃
temperature range.
The SGM321/358/324 provide 1MHz bandwidth at a
low current consumption of 60μA
per amplifier. Very
low input bias currents of 10pA enable SGM321/358/324
to be used for integrators, photodiode amplifiers, and
piezoelectric sensors. Rail-to-rail input and output are
useful to designers for buffering ASIC in single-supply
systems.
Applications for this series of amplifiers include safety
monitoring, portable equipment, battery and power
supply control, and signal conditioning and interfacing
for transducers in very low power systems.
The SGM321 is available in the Green SOT-23-5 and
SC70-5 packages. The SGM358 comes in the Green
SOIC-8, MSOP-8 and DIP-8 packages. The SGM324 is
offered in the Green
packages.
SOIC-14
and
TSSOP-14
ASIC Input or Output Amplifier
Sensor Interface
Piezoelectric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable Systems
Smoke Detectors
Notebook PC
PCMCIA Cards
Battery-Powered Equipment
DSP Interface
FEATURES
•
Low Cost
•
Rail-to-Rail Input and Output
0.8mV Typical V
OS
•
Unity Gain Stable
•
Gain-Bandwidth Product:
1MHz
•
Very Low Input Bias Current:
10pA
•
Supply Voltage Range:
2.1V to 5.5V
•
Input Voltage Range:
-0.1V
to +5.6V with V
S
= 5.5V
•
Low Supply Current:
60μA/Amplifier
•
Small Packaging
SGM321 Available in SOT-23-5 and SC70-5
SGM358 Available in SOIC-8, MSOP-8 and DIP-8
SGM324 Available in SOIC-14 and TSSOP-14
APPLICATIONS
SG Micro Corp
www.sg-micro.com
MARCH
2017 –
REV.
E. 1
SGM321/SGM358/SGM324
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SC70-5
SGM321
SOT-23-5
SOT-23-5
SOIC-8
SGM358
MSOP-8
DIP-8
SOIC-14
SGM324
TSSOP-14
-40℃ to +85℃
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
1MHz, 60μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
ORDERING
NUMBER
SGM321YC5/TR
SGM321YN5/TR
SGM321BYN5/TR
SGM358YS/TR
SGM358YMS/TR
SGM358YP
SGM324YS14/TR
SGM324YTS14/TR
PACKAGE
MARKING
321
321
321B
SGM358YS
XXXXX
SGM358
YMS
XXXXX
SGM358YP
XXXXX
SGM324YS14
XXXXX
SGM324
YTS14
XXXXX
PACKING
OPTION
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 4000
Tape and Reel, 3000
20 Tube (1000pcs)
Tape and Reel, 2500
Tape and Reel, 3000
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.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +V
S
to -V
S
................................................ 6V
Common Mode Input Voltage
.................................................... (-V
S
) - 0.3V to (+V
S
) + 0.3V
Package Thermal Resistance @ T
A
= +25℃
SC70-5,
θ
JA
.............................................................. 333℃/W
SOT-23-5,
θ
JA
.......................................................... 190℃/W
SOIC-8,
θ
JA
.............................................................. 125℃/W
MSOP-8,
θ
JA
............................................................ 216℃/W
Storage Temperature Range ........................ -65℃ to +150℃
Junction Temperature .................................................+150℃
Lead Temperature (Soldering 10sec) .........................+260℃
ESD Susceptibility
HBM ............................................................................. 4000V
MM ................................................................................ .400V
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 +85℃
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
MARCH 2017
2
SGM321/SGM358/SGM324
PIN CONFIGURATIONS
SGM321YN5/
SGM321YC5 (TOP VIEW)
1MHz, 60μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
SGM321BYN5 (TOP VIEW)
+IN
1
5
+V
S
OUT
-V
S
1
5
+V
S
-V
S
2
2
-IN
3
SOT-23-5/SC70-5
4
OUT
+IN
3
SOT-23-5
4
-IN
SGM324
(TOP VIEW)
SGM358 (TOP VIEW)
OUTA
-INA
+INA
+V
S
1
2
3
4
5
6
7
TSSOP-14/SOIC-14
14
13
12
11
10
9
8
OUTD
-IND
+IND
-V
S
+INC
-INC
OUTC
OUTA
1
8
+V
S
-INA
2
7
OUTB
+INA
3
6
-INB
+INB
-V
S
4
5
+INB
-INB
SOIC-8/MSOP-8/DIP-8
OUTB
SG Micro Corp
www.sg-micro.com
MARCH 2017
3
SGM321/SGM358/SGM324
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
1MHz, 60μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
(At V
S
= +5V, R
L
= 100kΩ
connected to V
S
/2, and V
OUT
= V
S
/2, unless otherwise noted.)
SGM321/358/324
CONDITIONS
TYP
+25℃
INPUT CHARACTERISTICS
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Common Mode Voltage Range
Common Mode Rejection Ratio
V
OS
I
B
I
OS
V
CM
CMRR
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
Open-Loop Voltage Gain
Input Offset Voltage Drift
OUTPUT CHARACTERISTICS
V
OH
Output Voltage Swing from Rail
V
OL
V
OH
V
OL
Output Current
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio
Quiescent Current/Amplifier
PSRR
I
Q
V
S
= +2.5V to +5.5V, V
CM
= +0.5V
82
60
2.1
5.5
60
80
2.5
5.5
58
86
V
V
dB
μA
MIN
MAX
MIN
MAX
I
SOURCE
I
SINK
R
L
= 100kΩ
R
L
= 100kΩ
R
L
= 10kΩ
R
L
= 10kΩ
R
L
= 10Ω
to V
S
/2
4.997
5
4.992
8
84
75
4.980
20
4.970
30
60
60
4.970
30
4.960
40
45
45
V
mV
V
mV
mA
MIN
MAX
MIN
MAX
MIN
A
OL
ΔV
OS
/ΔT
R
L
= 5kΩ, V
O
= +0.1V to +4.9V
R
L
=
100kΩ, V
O
= +0.035V to +4.965V
V
CM
= V
S
/2
0.8
10
10
-0.1 to +5.6
70
68
80
84
2.7
62
56
70
80
62
55
70
80
μV/℃
TYP
dB
MIN
5
5.6
mV
pA
pA
V
dB
MAX
TYP
TYP
TYP
MIN
MIN/MAX OVER TEMPERATURE
+25℃
-40℃ to
+85℃
UNITS
MIN/MAX
DYNAMIC PERFORMANCE
(C
L
= 100pF)
Gain-Bandwidth Product
Slew Rate
Settling Time to 0.1%
Overload Recovery Time
NOISE PERFORMANCE
Voltage Noise Density
e
n
f = 1kHz
f = 10kHz
27
20
nV/
nV/
Hz
Hz
GBP
SR
t
S
G = +1, 2V Output Step
G = +1, 2V Output Step
V
IN
·Gain = V
S
1
0.52
5.3
2.6
MHz
V/μs
μs
μs
TYP
TYP
TYP
TYP
TYP
TYP
SG Micro Corp
www.sg-micro.com
MARCH 2017
4
SGM321/SGM358/SGM324
1MHz, 60μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V, and R
L
= 100kΩ
connected to V
S
/2, unless otherwise noted.
Small-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100kΩ
Large-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100kΩ
Time (2μs/div)
500mV/div
20mV/div
Time (10μs/div)
Small-Signal Overshoot vs. Load Capacitance
60
Small-Signal Overshoot vs. Load Capacitance
60
Small-Signal Overshoot (%)
Small-Signal Overshoot (%)
50
40
30
20
10
0
10
G = -5
R
FB
= 100kΩ
50
40
30
20
10
0
G = -1
R
FB
=
100kΩ
G = +1
R
L
=
100kΩ
G = -1
R
FB
=
5kΩ
100
1000
10000
10
100
1000
10000
Load Capacitance (pF)
Load Capacitance (pF)
Maximum Output Voltage vs. Frequency
6
V
S
= 5.5V
80
70
Supply Current vs. Supply Voltage
Output Voltage (V
p-p
)
5
4
3
2
1
0
1
Supply Current (μA)
V
S
= 5V
Maximum Output Voltage
w ithout Slew -Rate
Induced Distortion
60
50
40
30
20
10
0
V
S
= 2.5V
10
100
Frequency (kHz)
1000
10000
0
1
2
3
4
5
Supply Voltage (V)
6
7
SG Micro Corp
www.sg-micro.com
MARCH 2017
5
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