SGM8478-1C [SGMICRO]
High Voltage, High Precision, Low Noise, Over the Rail Difference Amplifier;
| 型号： | SGM8478-1C |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | High Voltage, High Precision, Low Noise, Over the Rail Difference Amplifier |
| 文件： | 总12页 (文件大小：867K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM8478-1C
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
GENERAL DESCRIPTION
FEATURES
The SGM8478-1C is a low noise, high precision
difference amplifier which can operate from 4.5V to 36V
single supply. The device provides rail-to-rail output
operation. Its input common mode voltage range
covers up to (+VS) + 1V. The wide input voltage range
makes this device suitable for current sensing
applications.
• Low Offset Voltage: 16μV (MAX)
• Input Signal Range:
(-VS) - 0.1V to (+VS) + 1V for Dual Power Supplies
GND - 0.1V to (+VS) + 1V for Single Power Supply
• Gain: 50V/V
• PSRR: 0.05μV/V (TYP)
• CMRR: 106dB (TYP)
• 0.1Hz to 10Hz Noise: 0.75μVP-P
The SGM8478-1C offers a 16μV maximum input offset
voltage. Meanwhile, the device features high linearity and
highaccuracy. The combination of these characteristics
makes the SGM8478-1C 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: 39nV/ Hz at 1kHz
√
• -3dB Bandwidth: 230kHz
• Rail-to-Rail Output
• Wide Supply Voltage Range: 4.5V to 36V
• Supply Current: 1.55mA (TYP)
• Integrated Matched Resistors for Differential
Applications
• -40℃ to +125℃ Operating Temperature Range
• Available in Green SOIC-8 and TDFN-3×3-8L
Packages
The SGM8478-1C saves external components by
integrated matched resistors in differential applications.
The gain of SGM8478-1C is 50V/V.
The SGM8478-1C is available in Green SOIC-8 and
TDFN-3×3-8L packages. It operates over an ambient
temperature range of -40℃ to +125℃.
APPLICATIONS
Pressure Sensors
Temperature Measurements
Precision Current Sensing
Electronic Scales
Strain Gauge Amplifiers
Handheld Test Equipment
Thermocouple Amplifiers
Medical Instrumentation
SG Micro Corp
JUNE 2019 – REV. A
www.sg-micro.com
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGM
84781CXS8
XXXXX
SGM
84781DB
XXXXX
SOIC-8
SGM8478-1CXS8G/TR
Tape and Reel, 2500
Tape and Reel, 4000
-40℃ to +125℃
-40℃ to +125℃
SGM8478-1C
(Gain = 50)
TDFN-3×3-8L
SGM8478-1CXTDB8G/TR
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
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
Supply Voltage.................................................................40V
Input Voltage Range ....................... (-VS) -0.3V to (+VS) + 1V
Junction Temperature .................................................+150℃
Storage Temperature Range........................-65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................+260℃
ESD Susceptibility
ESD SENSITIVITY CAUTION
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.............................................................................5000V
CDM ............................................................................1000V
RECOMMENDED OPERATING CONDITIONS
Operating Voltage Range.....................................4.5V to 36V
Operating Temperature Range .....................-40℃ to +125℃
DISCLAIMER
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
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
JUNE 2019
www.sg-micro.com
2
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
PIN CONFIGURATIONS
(TOP VIEW)
(TOP VIEW)
NC
-IN
1
2
3
4
8
7
6
5
NC
NC
-IN
1
2
3
4
8
7
6
5
NC
R2
R1
+VS
+VS
OUT
VREF
-
-VS
+IN
-VS
+
+IN
-VS
OUT
VREF
R1
R2
SOIC-8
TDFN-3×3-8L
FUNCTION
PIN DESCRIPTION
PIN
NAME
SOIC-8
TDFN-3×3-8L
1, 8
2
1, 8
NC
-IN
No Connection.
Inverting Input.
2
3
3
+IN
-VS
Non-Inverting Input.
4
4
Negative Power Supply.
5
5
VREF
OUT
+VS
-VS
Reference Voltage Terminal.
Output of Amplifier.
6
6
7
7
Positive Power Supply.
-
Exposed Pad
Exposed pad should be soldered to PCB board and connected to -VS.
SG Micro Corp
www.sg-micro.com
JUNE 2019
3
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
ELECTRICAL CHARACTERISTICS
(At TA = +25℃, +VS = 4.5V to 36V, -VS = 0V, VCM = VREF = +VS/2 and RL = 10kΩ, Full = -40℃ to +125℃, unless otherwise noted.)
PARAMETER
Input Characteristics
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
5
16
40
+25℃
Full
Input Offset Voltage (VOS
)
VS = 4.5V to 36V
μV
Input Offset Voltage Drift (ΔVOS/ΔT)
Full
0.14
106
μV/℃
Input Common Mode Voltage Range (VCM
)
Full
(-VS) - 0.1
(+VS) + 1
V
92
89
+25℃
Full
Common Mode Rejection Ratio (CMRR) (1) (-VS) - 0.1V < VCM < (+VS) + 1V
dB
Output Characteristics
195
270
320
+25℃
Output Voltage Swing from Rail
Output Short-Circuit Current (ISC
VS = 36V, RL = 10kΩ
mV
mA
Full
VS = 4.5V
VS = 36V
9
19
64
)
Full
37
Power Supply
Specified Voltage Range (VS)
Full
+25℃
Full
4.5
36
0.3
0.45
2.1
2.4
V
0.05
1.55
Power Supply Rejection Ratio (PSRR) (1)
VS = 4.5V to 36V
VS = 4.5V to 36V
μV/V
+25℃
Full
Quiescent Current (IQ)
mA
Dynamic Performance
-3dB Bandwidth
CL = 25pF
230
2.1
kHz
+25℃
+25℃
Slew Rate (SR)
VS = 30V, VOUT = 4VP-P
V/μs
Noise
Input Voltage Noise (1)
Input Voltage Noise Density (en) (1)
Gain
f = 0.1Hz to 10Hz
f = 1kHz
0.75
39
μVP-P
+25℃
+25℃
nV/ HZ
Gain Error
VS = 30V, -9V ≤ VOUT ≤9V
VS = 30V, -9V ≤ VOUT ≤9V
0.01
0.15
0.1
%
+25℃
+25℃
Gain Temperature Coefficient
ppm/℃
NOTE: 1. Referred to input.
SG Micro Corp
JUNE 2019
www.sg-micro.com
4
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VS = 30V, unless otherwise noted.
Quiescent Current vs. Temperature
Output Short-Circuit Current vs. Temperature
1.8
1.7
1.6
1.5
1.4
1.3
1.2
90
80
70
60
50
40
ISINK
ISOURCE
-50
-25
0
25
50
75
100 125
-50
-25
0
25
50
75
100 125
Temperature (℃)
Temperature (℃)
Input Offset Voltage vs. Temperature
Gain Error vs. Temperature
0
-2
0.007
0.0065
0.006
-4
-6
0.0055
0.005
-8
-10
-12
0.0045
-50
-25
0
25
50
75
100 125
-50
-25
0
25
50
75
100 125
Temperature (℃)
Temperature (℃)
CMRR vs. Temperature
0.1Hz to 10Hz Input Voltage Noise
-105
-106
-107
-108
-109
-110
-50
-25
0
25
50
75
100 125
Time (1s/div)
Temperature (℃)
SG Micro Corp
www.sg-micro.com
JUNE 2019
5
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 30V, unless otherwise noted.
CMRR vs. Frequency (Referred-to-Input)
PSRR vs. Frequency (Referred-to-Input)
-20
-40
-20
-40
PSRR-
-60
-60
-80
-80
-100
-120
-140
-160
-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)
Small-Signal Gain vs. Frequency
Input Voltage Noise Density vs. Frequency
40
30
20
10
0
100
10
1
-10
10
100
1000
10000
0.01
0.1
1
10
100
1000 10000
Frequency (Hz)
Frequency (kHz)
Small-Signal Step Response
Large-Signal Step Response
Time (20μs/div)
Time (20μs/div)
SG Micro Corp
JUNE 2019
www.sg-micro.com
6
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 30V, unless otherwise noted.
Input Offset Voltage Production Distribution
Gain Accuracy Production Distribution
20
16
12
8
20
16
12
8
2890 Samples
1 Production Lot
2890 Samples
1 Production Lot
4
4
0
0
Input Offset Voltage (μV)
Gain Error (%)
SG Micro Corp
www.sg-micro.com
JUNE 2019
7
High Voltage, High Precision, Low Noise,
Over the Rail Difference Amplifier
SGM8478-1C
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (JUNE 2019) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
JUNE 2019
www.sg-micro.com
8
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
SG Micro Corp
www.sg-micro.com
TX00010.000
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TDFN-3×3-8L
D
e
N8
D1
k
E
E1
N4
N1
L
b
BOTTOM VIEW
TOP VIEW
2.3
1.5 2.725
A
A1
A2
0.675
SIDE VIEW
0.65
0.24
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
0.800
0.050
MIN
0.028
0.000
MAX
0.031
0.002
A
A1
A2
D
0.700
0.000
0.203 REF
0.008 REF
2.900
2.200
2.900
1.400
3.100
2.400
3.100
1.600
0.114
0.087
0.114
0.055
0.122
0.094
0.122
0.063
D1
E
E1
k
0.200 MIN
0.650 TYP
0.008 MIN
0.026 TYP
b
0.180
0.375
0.300
0.575
0.007
0.015
0.012
0.023
e
L
SG Micro Corp
www.sg-micro.com
TX00058.000
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
3.35
5.40
3.35
2.10
1.13
4.0
4.0
8.0
8.0
2.0
2.0
12.0
12.0
Q1
Q1
TDFN-3×3-8L
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
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