SGM8557-2XMS8G [SGMICRO]
15MHz, High Output Drive, High Precision, Low Noise Operational Amplifier;型号: | SGM8557-2XMS8G |
厂家: | Shengbang Microelectronics Co, Ltd |
描述: | 15MHz, High Output Drive, High Precision, Low Noise Operational Amplifier |
文件: | 总14页 (文件大小:713K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SGM8557-2XMS8G
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
GENERAL DESCRIPTION
FEATURES
The SGM8557-2XMS8G is a dual, low noise, high
precision CMOS operational amplifier that provides a
high output current of 235mA, rail-to-rail output operation
from a range of 2.7V to 5.5V single supply.
• Output Drive Capability: 235mA
• Low Input Offset Voltage: 5μV (MAX)
• Low Input Offset Voltage Drift: 20nV/℃ (TYP)
• Low Noise: 30nV/ Hz at 1kHz
√
• Gain-Bandwidth Product: 15MHz
• High Slew Rate: 7V/μs
The SGM8557-2XMS8G offers low input offset voltage,
low input offset voltage drift and high output current
drive. The device also can achieve a high 15MHz
gain-bandwidth product and a high 7V/μs slew rate.
• High Open-Loop Gain (RL = 2kΩ): 135dB
• Power Supply Rejection Ratio: 121dB
• Over-Temperature Protection
The SGM8557-2XMS8G is specifically designed to
drive high current load, such as 32Ω headset, VBIAS of
RF power amplifier, etc.
• No Phase Reversal for Overdriven Inputs
• Rail-to-Rail Input and Output
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 2.4mA (TYP)
The SGM8557-2XMS8G is available in a Green MSOP-8
package. It operates over an ambient temperature
range of -40℃ to +125℃.
• -40℃ to +125℃ Operating Temperature Range
• Available in a Green MSOP-8 Package
TYPICAL OPERATING CIRCUIT
APPLICATIONS
Antenna
Battery-Powered Equipment
Audio System
2.7V to 5.5V
PA
IOUT = 30mA
DAC
+
Optical Module
½
RISO
SGM8557-2XMS8G
DAC Buffer
CL
_
Industrial Equipment
CF1
R
RF
CF2
SG Micro Corp
OCTOBER 2021 – REV. A. 1
www.sg-micro.com
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGM85572
XMS8
XXXXX
SGM8557-2XMS8G
MSOP-8
SGM8557-2XMS8G/TR
Tape and Reel, 4000
-40℃ to +125℃
MARKING INFORMATION
NOTE: XXXXX = Trace Code and Vendor Code.
X X X X X
Vendor Code
Trace Code
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
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.
Supply Voltage, +VS to -VS.................................................6V
All Other Pins.............................. (-VS) - 0.3V to (+VS) + 0.3V
Package Thermal Resistance
MSOP-8, θJA ............................................................ 162℃/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.............................................................................7000V
CDM ............................................................................1000V
circuit design, or specifications without prior notice.
PIN CONFIGURATION
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range .....................-40℃ to +125℃
Operating Supply Voltage Range........................2.7V to 5.5V
(TOP VIEW)
OUTA
-INA
+INA
-VS
1
2
3
4
8
7
6
5
+VS
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.
_
OUTB
-INB
+INB
_
+
+
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.
MSOP-8
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
2
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
ELECTRICAL CHARACTERISTICS
(VS = 2.7V to 5V, -VS = 0V, VCM = VS/2, VOUT = VS/2, RL connected to VS/2, Full = -40℃ to +125℃, typical values are at TA =
+25℃, unless otherwise noted.)
PARAMETER
Input Characteristics
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
VS = 2.7V
VS = 5V
VS = 2.7V
VS = 5V
VS = 5V
VS = 5V
2.5
3
5
5
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
Full
Input Offset Voltage (VOS
)
μV
25
126
Input Offset Voltage Drift (ΔVOS/ΔT)
nV/℃
20
130
Input Bias Current (IB)
320
640
500
pA
pA
V
Input Offset Current (IOS
)
1000
(+VS) + 0.1
Input Common Mode Voltage Range (VCM
)
(-VS) - 0.1
106
115
130
130
135
135
+25℃
Full
Common Mode Rejection Ratio (CMRR) (-VS) - 0.1V < VCM < (+VS) + 0.1V
dB
dB
102
112
+25℃
Full
RL = 2kΩ
RL = 200Ω
RL = 2kΩ
RL = 200Ω
110
VS = 2.7V,
(-VS) + 0.2V < VOUT < (+VS) - 0.2V
110
+25℃
Full
107
Open-Loop Voltage Gain (AOL
)
115
+25℃
Full
112
VS = 5V,
(-VS) + 0.2V < VOUT < (+VS) - 0.2V
110
+25℃
Full
108
Output Characteristics
220
40
4
300
370
60
+25℃
Full
RL = 32Ω
RL = 200Ω
RL = 2kΩ
+25℃
Full
72
VS = 2.7V
10
+25℃
Full
11
65
360
65
7
95
+25℃
Full
IOUT = 10mA
RL = 32Ω
RL = 200Ω
RL = 2kΩ
115
485
580
95
Output Voltage Swing from Rail
mV
+25℃
Full
+25℃
Full
115
15
VS = 5V
+25℃
Full
18
55
120
235
82
+25℃
Full
IOUT = 10mA
98
92
64
+25℃
Full
VS = 2.7V
VS = 5V
Output Short-Circuit Current (ISC
)
mA
182
148
+25℃
Full
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
3
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
ELECTRICAL CHARACTERISTICS (continued)
(VS = 2.7V to 5V, -VS = 0V, VCM = VS/2, VOUT = VS/2, RL connected to VS/2, Full = -40℃ to +125℃, typical values are at TA =
+25℃, unless otherwise noted.)
PARAMETER
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Power Supply
Specified Voltage Range (VS)
Full
+25℃
Full
2.7
102
94
5.5
V
121
2.4
Power Supply Rejection Ratio (PSRR)
dB
2.9
3.7
+25℃
Full
Quiescent Current (IQ)
IOUT = 0mA
mA
Frequency Response
Gain-Bandwidth Product
Slew Rate
RL = 10kΩ, CL = 100pF
15
7
MHz
+25℃
+25℃
G = +1,VOUT = 2VP-P
V/μs
VS = 5V, RL = 32Ω, f = 10kHz,
BW = 10Hz to 90kHz, VOUT = 2VP-P, AVCL = 1V/V
Total Harmonic Distortion + Noise
0.017
%
+25℃
Input Capacitance
Channel-to-Channel Isolation
Capacitive-Load Stability
Noise
20
pF
dB
pF
+25℃
+25℃
+25℃
f = 1kHz, RL = 100kΩ
-125
780
AVCL = 1V/V, no sustained oscillations
Input Voltage Noise
f = 0.1Hz to 10Hz
f = 1kHz
0.5
30
28
μVP-P
+25℃
+25℃
+25℃
Input Voltage Noise Density
nV/ Hz
√
f = 10kHz
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
4
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VS = 5V, unless otherwise noted.
Quiescent Current vs. Temperature
Output Current vs. Temperature
4
3.5
3
270
260
250
240
230
220
210
200
190
— VS = 5V
— VS = 2.7V
ISINK
ISOURCE
2.5
2
1.5
1
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Common Mode Rejection Ratio vs. Temperature
Open-Loop Gain vs. Temperature
RL = 200Ω
160
150
140
130
120
110
100
150
146
142
138
134
130
VS = 5V
VS = 2.7V
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Large-Signal Step Response
Small-Signal Step Response
G = +1
G = +1
Time (10μs/div)
Time (10μs/div)
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
5
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V, unless otherwise noted.
0.1Hz to 10Hz Noise
Input Voltage Noise Density vs. Frequency
100
10
1
10
100
1000
10000
10000
10
Time (1s/div)
Frequency (Hz)
Common Mode Rejection Ratio vs. Frequency
Power Supply Rejection Ratio vs. Frequency
120
100
80
60
40
20
0
120
100
80
60
40
20
0
PSRR+
PSRR-
0.01
0.1
1
10
100
1000
0.1
1
10
100
1000
Frequency (kHz)
Frequency (kHz)
THD+N vs. Output Voltage
THD+N vs. Output Voltage
10
1
10
1
G = +1
f = 10kHz
G = +1
f = 10kHz
0.1
0.1
0.01
0.01
— RL = 200Ω
— RL = 25Ω
— RL = 100kΩ
— RL = 2kΩ
0.001
0.001
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
Output Voltage (VRMS
)
Output Voltage (VRMS
)
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
6
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V, unless otherwise noted.
EMIRR vs. Frequency
VIN = -10dBm
Open-Loop Gain and Phase vs. Frequency
150
120
90
60
30
0
100
80
60
40
20
0
200
160
120
80
Phase
Open-Loop Gain
40
0
-20
-40
10
100
1000
10000
0.1
1
10
100
1000 10000 100000
Frequency (MHz)
Frequency (kHz)
Offset Voltage Production Distribution
2960 Samples
15
12
9
1 Production Lot
6
3
0
Offset Voltage (μV)
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
7
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
APPLICATION INFORMATION
Single-Supply Stereo Headphone Driver
A single-supply stereo headphone driver is shown in
Figure 1 as an example to explain the simplified design
procedure.
Bridge Amplifier
A bridge amplifier circuit which can provide 200mW at
3V is shown in Figure 2. Due to differential output, this
structure eliminates the large coupling capacitors in
Figure 1. The voltage gain is 10V/V and the gain can be
changed by changing R2.
RF
CIN
RIN
Left
Audio Input
COUT
+
_
C1
0.1μF
R1
16kΩ
R2
82kΩ
+
Headphone Jack
to 32Ω Stereo
Headset
3V
0.5VP-P
SGM8557-2XMS8G
VBIAS
_
3V
R5
COUT
+
+
+
51kΩ
R3
10kΩ
CIN
RIN
Right
_
32Ω
fS = 100Hz
Audio Input
R4
10kΩ
RF
SGM8557-2XMS8G
C2
R6
_
0.1μF
51kΩ
Figure 1. Stereo Headphone Driver
+
In this circuit, CIN and RIN form a high-pass filter, the DC
bias is removed from the incoming signal. The -3dB
point of the high-pass filter is using Equation 1:
Figure 2. 200mW Bridge Amplifier at 3V
1
f-3dB
=
(1)
2πRINCIN
The gain of driver is -RF/RIN. The COUT and the load
impedance form a high-pass filter with the -3dB point
determined by Equation 2:
1
f-3dB
=
(2)
2πRLCOUT
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
8
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
APPLICATIONS INFORMATION (continued)
Cancel Input Capacitance
Input Current-Limit Protection
The CIN (20pF TYP) at inverting input pin will generate
a pole at frequency (2πR′CIN)-1, where R′ is the parallel
combination of the gain-setting resistor for the inverting
or non-inverting amplifier in Figure 3. If the pole-frequency
is less than or comparable to the unity-gain bandwidth
(15MHz), the phase margin will be reduced, ringing in
the step response or sustained oscillation will be
generated. To cancel this pole, CF is used to compensate
CIN in Figure 3. Equation 3 gives the CF feedback
capacitance.
For ESD diode clamping protection, when the current
flowing through ESD diode exceeds the maximum
rating value, the ESD diode and amplifier will be
damaged, so current-limit protection will be added in
some applications. One resistor is selected to limit the
current not to exceed the maximum rating value. In
Figure 4, a series input resistor is used to limit the input
current to less than 10mA, but the drawback of this
current-limit resistor is to contribute thermal noise at the
amplifier input. If this resistor must be added, its value
must be selected as small as possible.
CF = 8×(R/RF) pF
(3)
where:
+VS
RF is the feedback resistor.
R is the gain-setting resistor.
_
IOVERLOAD
½
10mA MAX
VOUT
SGM8557-2XMS8G
VIN
+
CF
Inverting
RF
Figure 4. Input Current-Limit Protection
R
_
VIN
½
Rail-to-Rail Output
VOUT
R’ = R | | RF
SGM8557-2XMS8G
The SGM8557-2XMS8G supports rail-to-rail output
operation. In single power supply application, for example,
when +VS = 5V, -VS = GND, 2kΩ load resistor is tied
from OUT pin to VS/2, the typical output swing range is
from 0.007V to 4.993V.
+
RFCF = RCIN
Non-Inverting
VIN
+
½
VOUT
SGM8557-2XMS8G
_
RF
CF
R’ = R | | RF
RFCF = RCIN
R
Figure 3. Inverting and Non-Inverting Amplifiers with CF
to Compensate CIN
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
9
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
APPLICATIONS INFORMATION (continued)
Driving Capacitive Loads
Power Supply Decoupling and Layout
The SGM8557-2XMS8G is designed for unity-gain stable
for capacitive load up to 780pF. In Figure 5, it shows the
transient response with capacitive load (CL). If greater
capacitive load must be driven in application, the circuit
in Figure 6 can be used. In this circuit, the IR drop
voltage generated by RISO is compensated by feedback
loop.
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 7.
The ceramic capacitors should be placed as close as
possible to +VS and -VS power supply pins.
150
100
50
+VS
+VS
10μF
10μF
0
-50
G = +1
f = 10kHz
V
OUT = 100mVP-P
CL = 780pF
0.1μF
0.1μF
-100
-150
_
_
VN
VP
VN
VP
½
½
VOUT
VOUT
SGM8557-2XMS8G
SGM8557-2XMS8G
30 40 50 60 70 80 90 100 110 120
+
+
Time (μs)
10μF
-VS (GND)
Figure 5. Small-Signal Transient Response
(Capacitive Load)
0.1μF
RF
10kΩ
-VS
CF
_
Figure 7. Amplifier Power Supply Bypassing
RISO
½
VOUT
SGM8557-2XMS8G
CL
VIN
+
Figure 6. Circuit to Drive Capacitive Load
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
10
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifier
SGM8557-2XMS8G
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
OCTOBER 2021 ‒ REV.A to REV.A.1
Page
Updated Marking Information section...................................................................................................................................................................2
Changes from Original (SEPTEMBER 2021) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
OCTOBER 2021
11
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
MSOP-8
13″
12.4
5.20
3.30
1.50
4.0
8.0
2.0
12.0
Q1
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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