SGM321/SGM358/SGM324
1MHz, 60µA, Rail-to-Rail I/O
CMOS Operational Amplifiers
PRODUCT DESCRIPTION
The SGM321(single), SGM358(dual) and SGM324(quad)
are rail-to-rail input and output voltage feedback
amplifiers offering low cost. They have a wide input
common-mode voltage range and output voltage swing,
and
take the minimum operating supply voltage down to
2.1V and 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 inputs and outputs are
useful to designers buffering ASIC in single-supply
systems.
Applications for the series 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 SOT23-5 and SC70-5
packages. The SGM358 comes in SO-8, MSOP-8 and
DIP-8 packages. The SGM324 is offered in SO-14 and
TSSOP-14 packages.
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 Currents: 10pA
•
Operates on 2.1V to 5.5V Supplies
•
Input Voltage Range:
-0.1V to +5.6V with V
S
= 5.5V
•
Low Supply Current: 60µA/Amplifier
•
Small Packaging
SGM321 Available in SOT23-5 and SC70-5
SGM358 Available in SO-8, MSOP-8 and DIP-8
SGM324 Available in SO-14 and TSSOP-14
PIN CONFIGURATIONS
(Top View)
SGM321
+IN
-V
S
-IN
1
2
3
4
OUT
5
+V
S
OUT A
-IN A
+IN A
+V
S
+IN B
-INB
OUT B
OUT A 1
-INA 2
+INA 3
-V
S
4
8
7
+V
S
OUT B
1
2
3
4
5
6
7
SGM324
14 OUT D
13
-IND
12 +IND
11 -V
S
10 +INC
9
8
-INC
OUT C
APPLICATIONS
ASIC Input or Output Amplifier
Sensor Interface
Piezo Electric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable Systems
Smoke Detectors
Notebook PC
PCMCIA Cards
Battery –Powered Equipment
DSP Interface
SOT23-5 / SC70-5
SGM358
TSSOP-14 / SO-14
6 -INB
5 +INB
SO-8 / MSOP-8 / DIP-8
SG Micro Limited
www.sg-micro.com
REV. D. 2
SGM321/SGM358/SGM324
PACKAGE/ORDERING INFORMATION
MODEL
SGM321
ORDER NUMBER
SGM321YC5/TR
SGM321YN5/TR
SGM358YS/TR
SGM358
SGM358YMS/TR
SGM358YP
SGM324
SGM324YS14/TR
SGM324YTS14/TR
PACKAGE
DESCRIPTION
SC70-5
SOT23-5
SO-8
MSOP-8
DIP-8
SO-14
TSSOP-14
1MHz, 60µA, 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
Tube, 50
Tape and Reel, 2500
Tape and Reel, 3000
MARKING
INFORMATION
321
321
SGM358YS
SGM358YMS
SGM358YP
SGM324YS14
SGM324YTS14
Note: SC70-5 package is same as SOT-353 package.
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...................... –45℃ to +85℃
Package Thermal Resistance @ T
A
= 25℃
SC70-5,
θ
JA
............................................................... 333℃/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.
SOT23-5,
θ
JA
............................................................. 190℃/W
SO-8,
θ
JA
.....................................................................125℃/W
MSOP-8,
θ
JA
............................................................... 216℃/W
Lead Temperature Range (Soldering 10 sec)..................260℃
ESD Susceptibility
HBM.................................................................................4000V
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.
SG Micro Limited
www.sg-micro.com
2
SGM321/SGM358/SGM324
(At R
L
= 100KΩ connected to Vs/2, and V
OUT
= Vs/2, unless otherwise noted.)
1MHz, 60µA, Rail-to-Rail I/O
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS: V
S
= +5V
SGM321/358/324
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
)
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio (PSRR)
Quiescent Current / Amplifier (I
Q
)
DYNAMIC PERFORMANCE
Gain-Bandwidth Product (GBP)
Slew Rate (SR)
Settling Time to 0.1% ( t
S
)
Overload Recovery Time
NOISE PERFORMANCE
Voltage Noise Density (e
n
)
f = 1kHz
f = 10kHz
27
20
nV/
nV/
Hz
Hz
MIN/MAX OVER TEMPERATURE
+25℃
-40℃
to 85℃
UNITS
MIN / MAX
±0.8
10
10
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
= 5KΩ ,Vo = 0.1V to 4.9V
R
L
= 100KΩ ,Vo = 0.035V to 4.965V
-0.1 to +5.6
70
68
80
84
2.7
±5
±5.6
mV
pA
pA
V
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
62
56
70
80
62
55
70
80
dB
dB
dB
dB
µV/℃
R
L
= 100KΩ
R
L
= 10KΩ
0.008
0.08
23
20
18.8
V
V
mA
TYP
TYP
MIN
2.1
5.5
V
s
= +2.5V to + 5.5V
V
CM
= (-V
S
) + 0.5V
I
OUT
= 0
C
L
= 100pF
1
G = +1, 2V Output Step
G = +1, 2V Output Step
V
IN
·Gain = V
S
0.52
5.3
2.6
82
60
60
80
2.5
5.5
58
86
V
V
dB
µA
MIN
MAX
MIN
MAX
MHz
V/µs
µs
µs
TYP
TYP
TYP
TYP
TYP
TYP
Specifications subject to changes without notice.
SG Micro Limited
www.sg-micro.com
3
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 Vs/2, unless otherwise noted.
Small-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100KΩ
500mV/div
Large-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100KΩ
20mV/div
2µs/div
10µs/div
Small-Signal Overshoot vs. Load Capacitance
60
Small-Signal Overshoot (%)
50
40
30
20
10
0
10
100
1000
Load Capacitance (pF)
10000
Small-Signal Overshoot vs. Load Capacitance
60
Small-Signal Overshoot (%)
G = -1
R
FB
= 100KΩ
G = -5
R
FB
= 100KΩ
50
40
30
20
10
0
10
G = +1
R
L
= 100KΩ
G = -1
R
FB
= 5KΩ
100
1000
Load Capacitance (pF)
Quiescent and Short-Circuit Current
vs. Supply Voltage
10000
Maximum Output Voltage vs. Frequency
6
5
Output Voltage (V
p-p
)
4
3
2
1
0
1
10
100
1000
Frequency (kHz)
10000
V
S
= 2.5V
V
S
= 5V
V
S
= 5.5V
Maximum Output Voltage
Without Slew-Rate
Induced Distortion
50
Quiescent Current (µA)
45
40
35
30
25
2
2.5
3
3.5
4
4.5
Supply Voltage (V)
5
5.5
I
SC
30
25
20
Short-Circuit Current (mA)
I
Q
15
10
5
SG Micro Limited
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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 Vs/2, unless otherwise noted.
Input Voltage Noise Spectral Density
vs. Frequency
1000
Voltage Noise (nV/√Hz)
CMRR and PSRR vs. Frequency
100
90
80
CMRR, PSRR (dB)
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
Frequency (kHz)
1000
10000
PSRR
CMRR
100
10
0.01
0.1
1
Frequency (kHz)
10
100
Output Voltage Swing vs. Output Current
3
135℃
Output Voltage (V)
2
V
S
= 3V
1
-50℃
135℃
0
0
4
8
12
16
20
Output Current (mA)
Supply Current vs. Temperature
60
Output Voltage Swing vs. Output Current
5
135℃
4
Output Voltage (V)
V
S
= 5V
25℃
-50℃
Sourcing Current
Sourcing Current
25℃
-50℃
3
2
1
Sinking Current
-50℃
135
25℃
15
20
25
30
25℃
Sinking Current
0
0
5
10
Output Current (mA)
Open-Loop Gain vs. Temperature
120
Open–Loop Gain (dB)
110
100
90
80
70
60
R
L
= 5KΩ
R
L
= 100KΩ
55
Supply Current (µA)
50
45
40
35
30
-50 -30 -10
10
30
50
70
90 110 130
Temperature (℃)
V
S
= 2.5V
V
S
= 5V
V
S
= 3V
-50 -30 -10
10
30
50
70
90 110 130
Temperature (℃)
SG Micro Limited
www.sg-micro.com
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