SGM8249-1 [SGMICRO]
8MHz, High Voltage, High Precision, Low Noise, Rail-to-Rail Output Operational Amplifier;
| 型号： | SGM8249-1 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 8MHz, High Voltage, High Precision, Low Noise, Rail-to-Rail Output Operational Amplifier |
| 文件： | 总15页 (文件大小：955K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM8249-1/SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
GENERAL DESCRIPTION
FEATURES
The single SGM8249-1 and dual SGM8249-2 are high
voltage, low noise and high precision operational
amplifiers which can operate from 4.5V to 36V single
supply or from ±2.25V to ±18V dual supplies. These
devices provide rail-to-rail output operation.
● Low Offset Voltage: 10μV (MAX)
● Open-Loop Voltage Gain: 150dB (TYP)
● PSRR: 150dB (TYP)
● CMRR: 140dB (TYP)
● Input Voltage Noise Density: 10nV/ Hz at 1kHz
√
● Gain-Bandwidth Product: 8MHz
● Overload Recovery Time: 0.7μs
● Rail-to-Rail Output Swing
The SGM8249-1/2 offer a low offset voltage less than
10μV and a low bias current. The combination of
characteristics makes the SGM8249-1/2 good choices
for temperature measurements, pressure and position
sensors, strain gauge amplifiers and medical
instrumentation, or any other 4.5V to 36V applications
requiring precision and long-term stability.
● Support Single or Dual Power Supplies:
4.5V to 36V or ±2.25V to ±18V
● Low Supply Current: 0.85mA/Amplifier (TYP)
● -40℃ to +125℃ Operating Temperature Range
● Small Packaging:
The SGM8249-1 is available in Green SOT-23-5 and
SOIC-8 packages. The SGM8249-2 is available in a
Green SOIC-8 package. The SGM8249-1/2 are rated
over the -40℃ to +125℃ temperature range.
SGM8249-1 Available in Green SOT-23-5 and
SOIC-8 Packages
SGM8249-2 Available in a Green SOIC-8 Package
APPLICATIONS
Pressure Sensors
Temperature Measurements
Precision Current Sensing
Electronic Scales
Strain Gauge Amplifiers
Handheld Test Equipment
Thermocouple Amplifiers
Medical Instrumentation
SG Micro Corp
OCTOBER 2022 - REV. A. 2
www.sg-micro.com
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SOT-23-5
SOIC-8
SGM8249-1XN5G/TR
GM7XX
Tape and Reel, 3000
Tape and Reel, 4000
Tape and Reel, 4000
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
SGM8249-1
SGM8249-2
SGM
82491XS8
XXXXX
SGM
82492XS8
XXXXX
SGM8249-1XS8G/TR
SGM8249-2XS8G/TR
SOIC-8
MARKING INFORMATION
NOTE: XX = Date Code. XXXXX = Date Code and Vendor Code.
SOT-23-5
SOIC-8
YYY X X
X X X X X
Date Code - Week
Date Code - Year
Serial Number
Vendor Code
Date Code - Week
Date Code - Year
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
ESD SENSITIVITY CAUTION
Supply Voltage.................................................................40V
Input Voltage Range ................................ -VS to (+VS) + 0.1V
Differential Input Voltage Range ............................. -1V to 1V
Junction Temperature .................................................+150℃
Storage Temperature Range.........................-65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................+260℃
ESD Susceptibility
This integrated circuit can be damaged if ESD protections are
not considered carefully. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failureto observe proper handlingand installation procedures
can cause damage. ESD damage can range from subtle
performance degradation tocomplete device failure. Precision
integrated circuits may be more susceptible to damage
because even small parametric changes could cause the
device not to meet the published specifications.
HBM.............................................................................6000V
CDM ............................................................................1000V
RECOMMENDED OPERATING CONDITIONS
Operating Voltage Range.....................................4.5V to 36V
Operating Temperature Range .....................-40℃ to +125℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
2
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
PIN CONFIGURATIONS
SGM8249-1 (TOP VIEW)
SGM8249-1 (TOP VIEW)
NC
-IN
1
2
3
4
8
7
6
5
NC
OUT
-VS
1
2
5
4
+VS
_
+VS
OUT
NC
_
+IN
-VS
+
+
+IN
3
-IN
NC = NO CONNECT
SOT-23-5
SOIC-8
SGM8249-2 (TOP VIEW)
1
2
3
4
8
7
6
5
+VS
OUTA
-INA
+INA
-VS
_
OUTB
-INB
_
+
+
+INB
SOIC-8
SG Micro Corp
OCTOBER 2022
www.sg-micro.com
3
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
ELECTRICAL CHARACTERISTICS
(At TA = +25℃, VS = ±2.25V to ±18V, VCM = 0V and RL = 5kΩ connected to 0V, Full = -40℃ to +125℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Input Characteristics
2
10
15
+25℃
Full
Input Offset Voltage
VOS
μV
Input Offset Voltage Drift
Input Bias Current
ΔVOS/ΔT
IB
Full
12
nV/℃
pA
±100
±200
±400
±600
+25℃
+25℃
Full
Input Offset Current
IOS
pA
Input Common Mode Voltage Range
VCM
(-VS)
118
115
120
117
128
125
(+VS) - 1.5
V
140
150
155
+25℃
Full
Common Mode Rejection Ratio
CMRR
AOL
VCM = (-VS) to (+VS) - 1.5V
VS = ±2.25V, VOUT = ±2.0V
VS = ±18V, VOUT = ±17.5V
dB
dB
+25℃
Full
Open-Loop Voltage Gain
Output Characteristics
+25℃
Full
22
32
35
+25℃
Full
VS = ±2.25V
VS = ±18V
VS = ±2.25V
VS = ±18V
Output Voltage Swing from Rail
mV
mA
170
±35
±70
240
285
+25℃
Full
±25
±14
±60
±44
+25℃
Full
Output Short-Circuit Current
ISC
+25℃
Full
Power Supply
Operating Voltage Range
VS
IQ
Full
+25℃
Full
4.5
36
1.2
1.3
V
0.85
150
Quiescent Current/Amplifier
Power Supply Rejection Ratio
IOUT = 0A
mA
128
125
+25℃
Full
PSRR
VS = 4.5V to 36V
dB
Dynamic Performance
Gain-Bandwidth Product
Slew Rate
GBP
SR
tS
VOUT = 100mVP-P, CL = 10pF
8
6
MHz
V/μs
μs
+25℃
+25℃
+25℃
+25℃
+25℃
Settling Time to 0.1%
Overload Recovery Time
Total Harmonic Distortion + Noise
Noise
VIN = 1V step, AV = +1
VIN × AV > VS
0.8
0.7
μs
THD+N VIN = 2VP-P, AV = +1, f = 1kHz
0.0002
%
Input Voltage Noise
f = 0.1Hz to 10Hz
f = 0.1kHz
0.2
10
10
11
μVP-P
+25℃
+25℃
+25℃
+25℃
Input Voltage Noise Density
en
f = 1kHz
HZ
nV/
f = 10kHz
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
4
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 5kΩ, unless otherwise noted.
Quiescent Current vs. Temperature
Quiescent Current vs. Supply Voltage
950
900
850
800
750
700
870
860
850
840
830
820
-50
-25
0
25
50
75
100 125
0
6
12
18
24
30
36
Supply Voltage (V)
Temperature (℃)
Output Short-Circuit Current vs. Supply Voltage
Input Offset Voltage vs. Input Common Mode Voltage
90
60
30
0
1.5
1
ISOURCE
0.5
0
-30
-60
-90
-0.5
-1
ISINK
-1.5
0
6
12
18
24
30
36
-6
0
6
12
18
24
30
36
Supply Voltage (V)
Input Common Mode Voltage (V)
Output Voltage vs. Output Current
0.1Hz to 10Hz Input Voltage Noise
20
15
10
5
0
-5
-10
-15
-20
0
20
40
60
80
100
Time (1s/div)
Output Current (mA)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
5
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 5kΩ, unless otherwise noted.
Input Voltage Noise Density vs. Frequency
Open-Loop Gain and Phase vs. Frequency
100
80
60
40
20
0
0
100
10
1
-30
-60
-90
-120
-150
-180
Phase
Open-Loop Gain
-20
10
100
1000
10000
100000
1
10
100
1000
10000
Frequency (Hz)
Frequency (kHz)
CMRR vs. Frequency
PSRR vs. Frequency
0
-30
0
-30
-60
-60
-PSRR
-90
-90
+PSRR
-120
-150
-120
-150
0.01
0.1
1
10
100
1000 10000
0.01
0.1
1
10
100
1000 10000
Frequency (kHz)
Frequency (kHz)
THD+N vs. Frequency
THD+N vs. Output Amplitude
-60
-70
-40
-60
AV = +1,
IN = 2VP-P
AV = +1,
f = 1kHz
V
-80
-80
-90
-100
-120
-140
-100
-110
-120
10
100
1000
10000
100000
0.001
0.01
0.1
1
10
Output Amplitude (VRMS
)
Frequency (Hz)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
6
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 5kΩ, unless otherwise noted.
EMIRR IN+ vs. Frequency
PRF = -10dBm
Channel Separation vs. Frequency
120
100
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
10
100
1000
10000
0.1
1
10
100
1000 10000 100000
Frequency (kHz)
Frequency (MHz)
Slew Rate (up)
Slew Rate (down)
1.5
1
1.5
1
0.5
0
0.5
0
-0.5
-1
-0.5
-1
-1.5
-1.5
Time (100ns/div)
Time (100ns/div)
Positive Settling Time
Negative Settling Time
0.2
0.15
0.1
0.15
0.1
— VIN
— VOUT
— VIN
— VOUT
0.05
0
0.05
0
-0.05
-0.1
-0.15
-0.2
-0.25
-0.05
-0.1
-0.15
-0.2
Time (500ns/div)
Time (500ns/div)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
7
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 5kΩ, unless otherwise noted.
Large-Signal Step Response
No Phase Reversal
20
15
10
5
— VIN
— VOUT
AV = +1, f = 2.5kHz, VOUT = 20VP-P
0
-5
-10
-15
-20
Time (50μs/div)
Time (100μs/div)
Input Offset Voltage Production Distribution
Quiescent Current Production Distribution
15
12
9
20
15
10
5
3240 Samples
1 Production Lot
3240 Samples
1 Production Lot
6
3
0
0
Inout Offset Voltage (μV)
Quiescent Current (mA)
Input Offset Voltage Drift Distribution
20
16
12
8
-40℃ ≤ TA ≤ +125℃
4
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28 30
Input Offset Voltage Drift (nV/℃)
SG Micro Corp
OCTOBER 2022
www.sg-micro.com
8
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
APPLICATION INFORMATION
+VS
+VS
Rail-to-Rail Output
10μF
10μF
The SGM8249-1/2 support rail-to-rail output operation.
In single power supply application, for example, when
+VS = 36V, -VS = GND, 5kΩ load resistor is tied from
OUT pin to ground, the typical output swing range is
from 0.17V to 35.83V.
0.1μF
0.1μF
_
_
VN
VP
VN
VP
VOUT
VOUT
Driving Capacitive Loads
+
+
The SGM8249-1/2 are unity-gain stable with heavy
capacitive load. If greater capacitive load must be
driven in application, the circuit in Figure 1 can be used.
In this circuit, the IR drop voltage generated by RISO is
compensated by feedback loop.
10μF
-VS (GND)
0.1μF
-VS
RF
CF
Figure 2. Amplifier Power Supply Bypassing
Grounding
_
In low speed application, one node grounding technique
is the simplest and most effective method to eliminate
the noise generated by grounding. In high speed
application, the general method to eliminate noise is to
use a complete ground plane technique, and the whole
ground plane will help distribute heat and reduce EMI
noise pickup.
RISO
VOUT
CL
VIN
+
Figure 1. Circuit to Drive Heavy Capacitive Load
Power Supply Decoupling and Layout
A clean and low noise power supply is very important in
amplifier circuit design, besides of input signal noise,
the power supply is one of important source of noise to
the amplifiers through +VS and -VS pins. Power supply
bypassing is an effective method to clear up the noise
at power supply, and the low impedance path to ground
of decoupling capacitor will bypass the noise to GND.
In application, 10μF ceramic capacitor paralleled with
0.1μF or 0.01μF ceramic capacitor is used in Figure 2.
The ceramic capacitors should be placed as close as
possible to +VS and -VS power supply pins.
Reduce Input-to-Output Coupling
To reduce the input-to-output coupling, the input traces
must be placed as far away from the power supply or
output traces as possible. The sensitive trace must not
be placed in parallel with the noisy trace in same layer.
They must be placed perpendicularly in different layers
to reduce the crosstalk. These PCB layout techniques
will help to reduce unwanted positive feedback and
noise.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
9
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
APPLICATION INFORMATION (continued)
Active Low-Pass Filter
Typical Application Circuits
The circuit in Figure 5 is a design example of active
low-pass filter, the DC gain is equal to -R2/R1 and the
-3dB corner frequency is equal to 1/2πR2C. In this design,
the filter bandwidth must be less than the bandwidth of
the amplifier, the resistor values must be selected as
low as possible to reduce ringing or oscillation generated
by the parasitic parameters in PCB layout.
Difference Amplifier
The circuit in Figure 3 is a design example of classical
difference amplifier. If R4/R3 = R2/R1, then VOUT = (VP -
VN) × R2/R1 + VREF
.
R2
R1
_
C
VN
VOUT
R2
R3
VP
+
R1
_
VIN
R4
VOUT
VREF
+
Figure 3. Difference Amplifier
R3 = R1 // R2
High Input Impedance Difference Amplifier
The circuit in Figure 4 is a design example of high input
impedance difference amplifier, the added amplifiers at
the input are used to increase the input impedance and
eliminate drawback of low input impedance in Figure 3.
Figure 5. Active Low-Pass Filter
_
R1
R2
VN
+
_
VOUT
+
VP
+
R3
_
R4
VREF
Figure 4. High Input Impedance Difference Amplifier
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
10
SGM8249-1
SGM8249-2
8MHz, High Voltage, High Precision, Low Noise,
Rail-to-Rail Output Operational Amplifiers
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
OCTOBER 2022 ‒ REV.A.1 to REV.A.2
Page
Updated Typical Performance Characteristics section.........................................................................................................................................6
OCTOBER 2019 ‒ REV.A to REV.A.1
Page
Updated Marking Information section...................................................................................................................................................................2
Changes from Original (DECEMBER 2017) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
11
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-5
1.90
D
e1
2.59
E1
E
0.99
b
e
0.95
0.69
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
0.2
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
MIN
MAX
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
c
D
E
E1
e
0.950 BSC
1.900 BSC
0.037 BSC
0.075 BSC
e1
L
0.300
0°
0.600
8°
0.012
0°
0.024
8°
θ
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00033.000
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOIC-8
0.6
D
e
2.2
E1
E
5.2
b
1.27
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.750
0.250
1.550
0.510
0.250
5.100
4.000
6.200
MIN
MAX
0.069
0.010
0.061
0.020
0.010
0.200
0.157
0.244
A
A1
A2
b
1.350
0.100
1.350
0.330
0.170
4.700
3.800
5.800
0.053
0.004
0.053
0.013
0.006
0.185
0.150
0.228
c
D
E
E1
e
1.27 BSC
0.050 BSC
L
0.400
0°
1.270
8°
0.016
0°
0.050
8°
θ
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00010.000
www.sg-micro.com
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
SOT-23-5
SOIC-8
7″
9.5
3.20
6.40
3.20
5.40
1.40
2.10
4.0
4.0
4.0
8.0
2.0
2.0
8.0
Q3
Q1
13″
12.4
12.0
SG Micro Corp
TX10000.000
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
7″ (Option)
368
442
386
227
410
280
224
224
370
8
18
5
7″
13″
SG Micro Corp
www.sg-micro.com
TX20000.000
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明