SGM321
SGM358
SGM324
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 5.5 V.
All are specified over the
extended – 40°C to +85°C 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
monitor- ing, 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
PDIP-8 packages. The SGM324 is offered in SO-14,
TSSOP-14, TSSOP-16 and SO-16 packages.
1MHz, 60µA, Rail-to-Rail I/O
CMOS Operational Amplifier
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 2.1 V to 5.5 V Supplies
•
Input Voltage Range:
- 0.1 V to +5.6 V with V
S
= 5.5 V
•
Low Supply Current: 60µA/Amplifier
•
Small Packaging
SGM321 Available in SOT23-5 and SC70-5
SGM358 Available in SO-8, MSOP-8 and PDIP-8
SGM324 Available in SO-14, SO-16, TSSOP-14 and
TSSOP-16
PIN CONFIGURATIONS
(Top View)
SGM321
OUT A 1
+IN
1
5
+V
S
-INA 2
-V
S
2
+INA 3
-IN 3
4
OUT
-V
S
4
SGM358
8
7
+V
S
OUT B
6 -INB
5 +INB
SOT23-5 / SC70-5
SO-8 / MSOP-8 / PDIP-8
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
OUT A
-IN A
+IN A
+V
S
+INB
-INB
OUT B
NC
1
2
3
4
5
6
7
8
SGM324
16 OUT D
15 -IND
14 +IND
13 -V
S
12 +INC
11 -INC
10 OUT C
NC = NO CONNECT
SGM324
OUT A
-IN A
+IN A
+V
S
+INB
-INB
OUT B
1
2
3
4
5
6
7
14 OUT D
13 -IND
12 +IND
11 -V
S
10 +INC
9
8
-INC
OUT C
9
NC
TSSOP-16 / SO-16
TSSOP-14/SO-14
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. D
ELECTRICAL CHARACTERISTICS : V
S
= +5V
(At R
L
= 100kΩ connected to Vs/2,and V
OUT
= Vs/2, unless otherwise noted)
SGM321/358/324
PARAMETER
CONDITION
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
2.1
5.5
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 4 V
V
S
= 5.5V, V
CM
= - 0.1V to 5.6 V
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
Operating Voltage Range
V
s
= +2.5 V to + 5.5 V
V
CM
=
(-V
S
) + 0.5
I
OUT
= 0
C
L
= 100pF
1
G = +1 , 2V Output Step
G = +1, 2 V Output Step
V
IN
·Gain = Vs
0.52
5.3
2.6
82
60
2.5
5.5
58
86
V
V
dB
µA
MIN
MAX
MIN
MAX
60
80
MHz
V/µs
µs
µs
TYP
TYP
TYP
TYP
TYP
TYP
Specifications subject to change without notice.
２
SGM321/358/324
PACKAGE/ORDERING INFORMATION
MODEL
SGM321
ORDER NUMBER
SGM321YC5/TR
SGM321YN5/TR
SGM358YS/TR
SGM358
SGM358YMS/TR
SGM358YP
SGM324YS/TR
SGM324
SGM324YTS/TR
SGM324YS14/TR
SGM324YTS14/TR
PACKAGE
DESCRIPTION
SC70-5
SOT23-5
SO-8
MSOP-8
PDIP-8
SO-16
TSSOP-16
SO-14
TSSOP-14
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
Tape and Reel, 2500
Tape and Reel, 3000
MARKING
INFORMATION
321
321
SGM358YS
SGM358YMS
SGM358YP
SGM324YS
SGM324YTS
SGM324YS14
SGM324YTS14
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V- . . . . . . . . . . . . . . . . . . . . . 7.5 V
Common-Mode Input Voltage
. . . . . . . . . . . . . . . . . . . . (–V
S
) – 0.5 V 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
SOT23-5,
θ
JA
........................
......
................................ 190
℃
/W
SO-8,
θ
JA
.............................
.....
....................................125
℃
/W
MSOP-8,
θ
JA
..............
.....
........................................... 216
℃
/W
SO-16,
θ
JA
...................
.......
........................................... 82
℃
/W
TSSOP-16,
θ
JA
................
......
...................................... 105
℃
/W
Lead Temperature Range (Soldering 10 sec)
.....................................................
260℃
ESD Susceptibility
HBM............................................
.....
...............................4000V
MM...............................
.................
....................................400V
CAUTION
This integrated circuit can be damaged by ESD.
Shengbang Micro-electronics 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.
NOTES
1. 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.
３
SGM321/358/324
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
Large-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100KΩ
20mV/div
2µs/div
500mV/div
10µs/div
Small-Signal Overshoot vs.Load Capacitance
Small-Signal Overshoot vs.Load Capacitance
60
Small-Signal Overshoot(%)
50
40
30
20
10
0
G = +1
R
L
= 100KΩ
G = -1
R
FB
= 5KΩ
G = -1
R
FB
= 100KΩ
60
Small-Signal Overshoot(%)
50
40
30
20
10
0
10
100
1000
Load Capacitance(pF)
10000
G = -5
R
FB
= 100KΩ
10
100
1000
Load Capacitance(pF)
10000
Maximum Output Voltage vs.Frequency
6
5
Output Voltage(Vp-p)
4
3
2
1
0
1
10
100
1000
Frequency(kHz)
10000
V
S
= 2.5V
V
S
= 5V
Maximum Output Voltage
Without Slew-Rate
Induced Distortion
50
Quiescent And Short-Circuit Current
vs.Supply Voltage
30
25
Short-Circuit Current(mA)
V
S
= 5.5V
Quiescent Current(
μ
A)
45
40
35
30
25
2
2.5
3
3.5
4
4.5
Supply Voltage(V)
5
5.5
I
Q
I
SC
20
15
10
5
４
SGM321/358/324
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
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
1000
Voltage Noise(nV/
√
Hz)
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℃
25℃
135℃
Sinking Current
0
0
4
8
12
16
20
Output Current(mA)
Sourcing Current
-50℃
Output Voltage(V)
25℃
4
3
2
1
5
Output Voltage Swing vs.Output Current
135℃
V
S
= 5V
-50℃
Sourcing Current
25℃
Sinking Current
-50℃
135℃
25℃
15
20
25
30
0
0
5
10
Output Current(mA)
Supply Current vs.Temperature
60
55
50
45
40
35
30
-50 -30 -10
10 30 50 70
Temperature(℃)
90
110 130
V
S
= 2.5V
Open-Loop Gain vs.Temperature
120
110
Open–Loop Gain(dB)
R
L
= 5kΩ
R
L
= 100kΩ
Supply Current(
μ
A)
V
S
= 5V
V
S
= 3V
100
90
80
70
60
-50 -30 -10
10 30 50 70
Temperature(℃)
90
110 130
５
SGM321/358/324
Microcontroller MCU
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