SGM8255B-2 [SGMICRO]
8.5MHz, High Voltage, High Precision, Low Noise, Operational Amplifier;
| 型号： | SGM8255B-2 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 8.5MHz, High Voltage, High Precision, Low Noise, Operational Amplifier |
| 文件： | 总14页 (文件大小：934K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM8255B-2
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
GENERAL DESCRIPTION
FEATURES
The SGM8255B-2 is a dual, low noise and high precision
operational amplifier optimized for high voltage operation
from 4.5V to 36V single supply. The device provides
rail-to-rail output operation.
● Low Offset Voltage: 25μV (MAX)
● Open-Loop Voltage Gain: 150dB (TYP)
● PSRR: 150dB (TYP)
● CMRR: 135dB (TYP)
● 0.1Hz to 10Hz Noise: 0.2μVP-P
The SGM8255B-2 offers a low offset voltage less than
25μV and a low bias current. The combination of
characteristics makes the SGM8255B-2 a good choice
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.
● Input Voltage Noise Density: 12nV/ Hz at 1kHz
√
● Gain-Bandwidth Product: 8.5MHz
● Overload Recovery Time: 0.7μs
● Rail-to-Rail Output Swing
● Supply Voltage Range: 4.5V to 36V
● Low Supply Current: 0.85mA/Amplifier (TYP)
● -40℃ to +125℃ Operating Temperature Range
● Available in Green SOIC-8 and MSOP-8 Packages
The SGM8255B-2 is available in Green SOIC-8 and
MSOP-8 packages. It is rated over the -40℃ to +125℃
temperature range.
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. 1
www.sg-micro.com
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGM
8255BXS8
XXXXX
SGM8255B2
XMS8
SOIC-8
SGM8255B-2XS8G/TR
-40℃ to +125℃
-40℃ to +125℃
Tape and Reel, 4000
Tape and Reel, 4000
SGM8255B-2
MSOP-8
SGM8255B-2XMS8G/TR
XXXXX
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
X X X X X
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
Package Thermal Resistance
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.
SOIC-8, θJA .............................................................. 105℃/W
SOIC-8, θJB ................................................................ 57℃/W
SOIC-8, θJC............................................................. 43.5℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range........................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
DISCLAIMER
SG Micro Corp reserves the right to make any change in
HBM.............................................................................6000V
CDM ............................................................................1000V
circuit design, or specifications without prior notice.
RECOMMENDED OPERATING CONDITIONS
Operating Voltage Range ....................................4.5V to 36V
Operating Temperature Range.....................-40℃ to +125℃
PIN CONFIGURATIONS
(TOP VIEW)
OVERSTRESS CAUTION
OUTA
-INA
+INA
-VS
1
2
3
4
8
7
6
5
+VS
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.
_
OUTB
-INB
+INB
_
SOIC-8/MSOP-8
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
2
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
ELECTRICAL CHARACTERISTICS
(At TA = +25℃, VS = ±2.5V to VS = ±18V, VCM = 0V and RL = 10kΩ connected to 0V, Full = -40℃ to +125℃, unless otherwise
noted.)
PARAMETER
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Input Characteristics
+25℃
Full
4
25
30
Input Offset Voltage (VOS
)
μV
Input Offset Voltage Drift (ΔVOS/ΔT)
Full
18
nV/℃
pA
Input Bias Current (IB)
+25℃
+25℃
Full
±100
±200
±400
±600
Input Offset Current (IOS
)
pA
Input Common Mode Voltage Range (VCM
)
(-VS) - 0.05
118
(+VS) - 1.5
V
+25℃
Full
135
150
155
Common Mode Rejection Ratio (1) (CMRR)
VCM = (-VS) - 0.05V to (+VS) - 1.5V
VS = ±2.5V, VOUT = ±2.0V
dB
dB
115
+25℃
Full
120
117
Open-Loop Voltage Gain (AOL
)
+25℃
Full
134
VS = ±18V, VOUT = ±17.5V
131
Output Characteristics
+25℃
Full
12
88
18
25
VS = ±2.5V
VS = ±18V
VS = ±2.5V
VS = ±18V
Output Voltage Swing from Rail
Output Short-Circuit Current (ISC
mV
mA
+25℃
Full
135
165
+25℃
Full
±24
±13
±60
±39
±35
±70
)
+25℃
Full
Power Supply
Operating Voltage Range (VS)
Full
+25℃
Full
4.5
36
1.1
1.2
V
0.85
150
Quiescent Current/Amplifier (IQ)
IOUT = 0A
mA
+25℃
Full
128
125
Power Supply Rejection Ratio (1) (PSRR)
VS = 4.5V to 36V
dB
Dynamic Performance
Gain-Bandwidth Product (GBP)
Slew Rate (SR)
VOUT = 100mVP-P, CL = 10pF
+25℃
+25℃
+25℃
+25℃
+25℃
8.5
5
MHz
V/μs
μs
Settling Time to 0.1% (tS)
Overload Recovery Time
VIN = 1V step, AV = +1
VIN × AV > VS
0.8
0.7
μs
Total Harmonic Distortion + Noise (THD+N) VIN = 2VP-P, AV = +1, f = 1kHz
0.0003
%
Noise
Input Voltage Noise
f = 0.1Hz to 10Hz
f = 0.1kHz
+25℃
+25℃
+25℃
+25℃
0.2
12
12
13
μVP-P
Input Voltage Noise Density (en)
f = 1kHz
nV/ Hz
√
f = 10kHz
NOTE 1: PSRR and CMRR are affected by the matching between external gain-setting resistor ratios.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
3
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 10kΩ, unless otherwise noted.
Quiescent Current vs. Temperature
Quiescent Current vs. Supply Voltage
1000
950
900
850
800
750
700
870
860
850
840
830
820
810
-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
4
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 10kΩ, 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
1
10
100
1000
10000
10
100
1000
10000
100000
Frequency (kHz)
Frequency (Hz)
CMRR vs. Frequency
PSRR vs. Frequency
-40
-60
-40
-60
-80
-80
-PSRR
-100
-120
-140
-100
-120
-140
+PSRR
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
-90
-95
-40
-60
AV = +1,
IN = 2VP-P
AV = +1,
f = 1kHz
V
-100
-105
-110
-115
-80
-100
-120
-140
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
5
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 10kΩ, unless otherwise noted.
EMIRR IN+ vs. Frequency
PRF = -10dBm
Channel Separation vs. Frequency
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
6
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = ±15V, CL = 10pF and RL = 10kΩ, unless otherwise noted.
Large-Signal Step Response
AV = +1, f = 1kHz, VOUT = 2VP-P
No Phase Reversal
20
15
10
5
— VIN
— VOUT
0
-5
-10
-15
-20
Time (50μs/div)
Time (100μs/div)
Input Offset Voltage Production Distribution
Quiescent Current Production Distribution
20
15
10
5
25
20
15
10
5
3300 Samples
1 Production Lot
3300 Samples
1 Production Lot
0
0
Input Offset Voltage (μV)
Quiescent Current (μA)
Input Offset Voltage Drift Distribution
20
16
12
8
-40℃ ≤ TA ≤ +125℃
4
0
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
Input Offset Voltage Drift (nV/℃)
SG Micro Corp
OCTOBER 2022
www.sg-micro.com
7
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
APPLICATION INFORMATION
+VS
+VS
Rail-to-Rail Output
10μF
10μF
The SGM8255B-2 supports rail-to-rail output operation.
In single power supply application, for example, when
+VS = 36V, -VS = GND, 10kΩ load resistor is tied from
OUT pin to ground, the typical output swing range is
from 0.088V to 35.912V.
0.1μF
0.1μF
_
_
VN
VP
VN
VP
VOUT
VOUT
Driving Capacitive Loads
+
+
The SGM8255B-2 is 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 amplifier 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
8
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
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
_
VN
VOUT
C
R3
VP
+
R2
R4
R1
_
VIN
VREF
VOUT
+
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
9
8.5MHz, High Voltage, High Precision,
Low Noise, Operational Amplifier
SGM8255B-2
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
OCTOBER 2022 ‒ REV.A to REV.A.1
Page
Updated Typical Performance Characteristics section.........................................................................................................................................5
Changes from Original (APRIL 2021) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
10
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
PACKAGE OUTLINE DIMENSIONS
MSOP-8
b
E1
E
4.8
1.02
e
0.41
0.65
RECOMMENDED LAND PATTERN (Unit: mm)
D
L
A
c
A1
θ
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.100
0.150
0.950
0.380
0.230
3.100
3.100
5.050
MIN
MAX
0.043
0.006
0.037
0.015
0.009
0.122
0.122
0.199
A
A1
A2
b
0.820
0.020
0.750
0.250
0.090
2.900
2.900
4.750
0.032
0.001
0.030
0.010
0.004
0.114
0.114
0.187
c
D
E
E1
e
0.650 BSC
0.026 BSC
L
0.400
0°
0.800
6°
0.016
0°
0.031
6°
θ
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00014.000
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
SOIC-8
13″
13″
12.4
12.4
6.40
5.20
5.40
3.30
2.10
1.50
4.0
4.0
8.0
8.0
2.0
2.0
12.0
12.0
Q1
Q1
MSOP-8
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
13″
386
280
370
5
SG Micro Corp
www.sg-micro.com
TX20000.000
相关型号：
©2020 ICPDF网 联系我们和版权申明