SGM80581/SGM80582/SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
GENERAL DESCRIPTION
FEATURES
The SGM80581 (single), SGM80582 (dual) and
● Unity-Gain Bandwidth: 220MHz
SGM80584 (quad) are high-speed, voltage-feedback
● Wide Bandwidth: 100MHz GBP
CMOS operational amplifiers. They are designed for
● High Slew Rate: 160V/μs
video and other applications which require wide
● Low Noise: 7nV/ Hz at 1MHz
bandwidth. They are unity-gain stable and can provide
● Rail-to-Rail Input and Output
large output current. Differential gain is 0.01% and
● High Output Current: 150mA (TYP)
differential phase is 0.1°. Quiescent current is only
● Excellent Video Performance:
4.5mA/Amplifier.
The SGM80581/2/4 are optimized for operation on
single or dual supplies as low as 2.5V (±1.25V) and up
to 5.5V (±2.75V). Input common mode range extends
beyond the supplies. The output swing is within 15mV
of the rails, supporting wide dynamic range.
The SGM80581/2/4 are suitable for applications requiring
high continuous output current. Multichannel versions
feature completely independent circuitry for lowest
crosstalk and freedom from interaction.
Diff Gain: 0.01%, Diff Phase: 0.1°
0.1dB Gain Flatness: 30MHz
● Low Input Bias Current: 2pA
● Quiescent Current: 4.5mA/Amplifier (TYP)
● Thermal Shutdown
● 2.5V to 5.5V Single Supply or ±1.25V to ±2.75V
Dual Power Supplies
● -40℃ to +125℃ Operating Temperature Range
● Small Packaging:
SGM80581 Available in Green SOT-23-5 and
SOIC-8 Packages
The single SGM80581 is available in Green SOT-23-5
SGM80582 Available in Green MSOP-8 and
and SOIC-8 packages. The dual SGM80582 is
SOIC-8 Packages
available in Green MSOP-8 and SOIC-8 packages. The
SGM80584 Available in a Green SOIC-14 Package
quad SGM80584 is available in a Green SOIC-14
package. All are specified over the extended -40℃ to
+125℃ temperature range.
APPLICATIONS
Video Processings
Ultrasound
Optical Networking, Tunable Lasers
Photodiode Transimpedance Amplifiers
Active Filters
High-Speed Integrators
Analog-to-Digital (A/D) Converter Input Buffers
Digital-to-Analog (D/A) Converter Output Amplifiers
Barcode Scanners
SG Micro Corp
www.sg-micro.com
OCTOBER 2019 – REV. A. 2
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
SOT-23-5
-40℃ to +125℃
SGM80581XN5G/TR
SU1XX
Tape and Reel, 3000
SOIC-8
-40℃ to +125℃
SGM80581XS8G/TR
MSOP-8
-40℃ to +125℃
SGM80582XMS8G/TR
SOIC-8
-40℃ to +125℃
SGM80582XS8G/TR
SOIC-14
-40℃ to +125℃
SGM80584XS14G/TR
SGM80581
SGM
80581XS8
XXXXX
SGM80582
XMS8
XXXXX
SGM
80582XS8
XXXXX
SGM80582
SGM80584
SGM80584XS14
XXXXX
Tape and Reel, 2500
Tape and Reel, 4000
Tape and Reel, 2500
Tape and Reel, 2500
MARKING INFORMATION
NOTE: XX = Date Code. XXXXX = Date Code and Vendor Code.
SOT-23-5
SOIC-8/MSOP-8/SOIC-14
XXXXX
YYY 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
Supply Voltage, +VS to -VS ................................................ 6V
Input Common Mode Voltage Range
.................................................... (-VS) - 0.1V to (+VS) + 0.1V
Signal Input Terminals Voltage Range
.................................................... (-VS) - 0.3V to (+VS) + 0.3V
Output Short-Circuit ............................................. Continuous
Junction Temperature .................................................+150℃
Storage Temperature Range ....................... -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................+260℃
ESD Susceptibility
HBM ............................................................................. 6000V
MM ................................................................................. 400V
CDM ............................................................................ 1000V
RECOMMENDED OPERATING CONDITIONS
Specified Voltage Range ....................................2.7V to 5.5V
Operating Temperature Range ..................... -40℃ to +125℃
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.
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO 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.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
OCTOBER 2019
2
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
PIN CONFIGURATIONS
SGM80581 (TOP VIEW)
SGM80581 (TOP VIEW)
OUT
-VS
+IN
1
5
2
+
_
3
4
NC
1
-IN
2
+IN
3
-VS
4
+VS
8
NC
_
7
+VS
+
6
OUT
5
NC
-IN
SOT-23-5
NC = NO CONNECT
SOIC-8
SGM80584 (TOP VIEW)
SGM80582 (TOP VIEW)
OUTA
1
-INA
2
+INA
3
-VS
4
_
+
8
+VS
7
OUTB
_
6
-INB
+
5
+INB
SOIC-8/MSOP-8
OUTA
1
-INA
2
_
+INA
3
+
+VS
4
+INB
5
+
-INB
6
_
OUTB
7
14
OUTD
_
13
-IND
+
12
+IND
11
-VS
+
10
+INC
_
9
-INC
8
OUTC
SOIC-14
SG Micro Corp
www.sg-micro.com
OCTOBER 2019
3
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS
(At TA = +25℃, VS = 2.7V to 5.5V, VCM = VS/2, VOUT = VS/2, RL = 1kΩ connected to VS/2, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
1.0
3.0
UNITS
Input Characteristics
Input Offset Voltage (VOS)
Input Offset Voltage Drift (ΔVOS/ΔT)
VS = 5V
6.5
-40℃ ≤ TA ≤ +125℃
-40℃ ≤ TA ≤ +125℃
Input Bias Current (IB)
Input Offset Voltage (IOS)
Input Common Mode Voltage Range (VCM)
mV
6.5
μV/℃
2
pA
0.1
pA
(-VS) - 0.1
(+VS) + 0.1
V
VS = 5.5V, -0.1V < VCM < 5.6V
56
-40℃ ≤ TA ≤ +125℃
53
VS = 5.5V, -0.1V < VCM < 3.5V
60
-40℃ ≤ TA ≤ +125℃
58
(-VS) + 0.3V < VOUT < (+VS) - 0.3V, RL = 1kΩ
89
109
(-VS) + 0.4V < VOUT < (+VS) - 0.4V, RL = 1kΩ
89
109
dB
-40℃ ≤ TA ≤ +125℃
84
Differential
1012 || 4
Ω || pF
Common Mode
1012 || 6
Ω || pF
Common Mode Rejection Ratio (CMRR)
Open-Loop Voltage Gain (AOL)
71
dB
71
Input Impedance
Output Characteristics
Output Voltage Swing from Rail
Short-Circuit Current (ISC)
VS = 5V, RL = 1kΩ
VS = 5V
15
110
150
62
mV
mA
VS = 3V
90
f < 100kHz
0.1
G = +1, VOUT = 100mVPP, RF = 25Ω
220
G = +2, VOUT = 100mVPP
106
Gain-Bandwidth Product (GBP)
G = +10, VOUT = 100mVPP
100
MHz
Bandwidth for 0.1dB Gain Flatness
G = +2, VOUT = 100mVPP
30
MHz
VS = 5V, VOUT = 2VPP
160
VS = 5V, VOUT = 4VPP
170
G = +1, VOUT = 200mVPP, 10% to 90%
3.5
G = +1, VOUT = 2VPP, 10% to 90%
12
VOUT = 2VPP
75
VOUT = 4VPP
35
Closed-Loop Output Impedance
Ω
Dynamic Performance
-3dB Small-Signal Bandwidth (f-3dB)
Slew Rate (SR)
Rise-and-Fall Time
Settling Time to 0.1%
Overload Recovery Time
VIN × G = VS
Crosstalk (SGM80582/4)
f = 5MHz
SG Micro Corp
www.sg-micro.com
MHz
V/µs
ns
ns
18
ns
-110
dB
OCTOBER 2019
4
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(At TA = +25℃, VS = 2.7V to 5V, VCM = VS/2, VOUT = VS/2, RL = 1kΩ connected to VS/2, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
5.5
V
5.5
V
Power Supply
Specified Voltage Range (VS)
2.7
Operating Voltage Range
Power Supply Rejection Ratio (PSRR)
Quiescent Current/Amplifier (IQ)
2.5
VS = 2.7V to 5.5V, VCM = (VS/2) - 0.55V
100
620
-40℃ ≤ TA ≤ +125℃
VS = 5V, IOUT = 0
540
4.5
7
9
-40℃ ≤ TA ≤ +125℃
μV/V
mA
Noise/Distortion Performance
Input Voltage Noise Density (en)
f = 1MHz
Input Current Noise Density (in)
f = 1MHz
Differential Gain Error
PAL, RL = 150Ω
0.01
%
Differential Phase Error
PAL, RL = 150Ω
0.1
°
-66
dBc
-76
dBc
Thermal Shutdown
150
℃
Reset from Shutdown
130
℃
Harmonic Distortion (2nd-Harmonic)
Harmonic Distortion (3rd-Harmonic)
G = +1, f = 1MHz, VOUT = 2VPP,
RL = 200Ω, VCM = 1.5V
G = +1, f = 1MHz, VOUT = 2VPP,
RL = 200Ω, VCM = 1.5V
7
nV/
Hz
10
fA/
Hz
Thermal Shutdown
SG Micro Corp
www.sg-micro.com
OCTOBER 2019
5
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VS = 5V, G = +1, RL = 1kΩ and connected to VS/2, unless otherwise noted.
Power Supply Rejection Ratio vs. Temperature
100
90
90
PSRR (dB)
CMRR (dB)
Common Mode Rejection Ratio vs. Temperature
100
80
70
60
50
80
70
60
-50
-25
0
25
50
75
100
50
125
-50
-25
0
Temperature (℃)
Supply Current vs. Temperature
Open−Loop Gain (dB)
Supply Current/Amplifier (mA)
100
125
115
VS = 5V
5
4
VS = 2.7V
3
110
105
100
95
-50
-25
0
25
50
75
100
90
125
-50
-25
0
Temperature (℃)
25
50
75
Output Voltage Swing vs. Output Current
VS = 5V
+125℃
+25℃
2
-55℃
1
VS = 3V
2.5
Output Voltage (V)
4
3
125
Output Voltage Swing vs. Output Current
3
5
100
Temperature (℃)
6
Output Voltage (V)
75
120
6
0
50
Open-Loop Gain vs. Temperature
7
2
25
Temperature (℃)
2
+125℃
1.5
+25℃
-55℃
1
0.5
0
50
100
150
Output Current (mA)
SG Micro Corp
www.sg-micro.com
200
250
0
0
40
80
120
160
200
Output Current (mA)
OCTOBER 2019
6
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V, G = +1, RL = 1kΩ and connected to VS/2, unless otherwise noted.
Non-Inverting Large-Signal Step Response
Non-Inverting Small-Signal Step Response
G = +1, RL = 1kΩ, VOUT = 0.4VPP
Output Voltage (500mV/div)
Output Voltage (100mV/div)
G = +1, RL = 1kΩ, VOUT = 2VPP
Time (20ns/div)
Time (20ns/div)
Non-Inverting Small-Signal Frequency Response
3
Inverting Small-Signal Frequency Response
3
VOUT = 0.1VPP
0
Normalized Gain (dB)
Normalized Gain (dB)
0
-3
-6
VOUT = 0.1VPP, RF = 600Ω
G = +1, RF = 25Ω
G = +2, RF = 600Ω
-9
G = +5, RF = 600Ω
-12
1M
G = -1
-6
G = -2
-9
G = -5
-12
G = +10, RF = 600Ω
-15
100k
-3
10M
100M
G = -10
-15
100k
1G
1M
Frequency (Hz)
G = +1, VOUT = 0.1VPP
10
-5
Normalized Gain (dB)
0
Normalized Gain (dB)
1G
Frequency Response for Various CL
15
G = +1, VOUT = 0.1VPP
RL = 50Ω
RL = 100Ω
-10
RL = 1kΩ
-15
RL = 10kΩ
-20
-25
100k
100M
Frequency (Hz)
Frequency Response for Various RL
5
10M
5
CL = 100pF
0
-5
CL = 47pF
-10
1M
10M
Frequency (Hz)
SG Micro Corp
www.sg-micro.com
100M
1G
-15
100k
CL = 5.6pF
1M
10M
100M
1G
Frequency (Hz)
OCTOBER 2019
7
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V, G = +1, RL = 1kΩ and connected to VS/2, unless otherwise noted.
CMRR, PSRR vs. Frequency
Maximum Output Voltage vs. Frequency
120
6
CMRR
5
-PSRR
60
+PSRR
40
20
VS = 5.5V
4
VS = 2.7V
3
Maximum Output
Voltage Without
Slew Rate
Induced Distortion
2
1
0
0
10k
100k
1M
10M
100M
1G
1
10
Frequency (MHz)
Frequency (Hz)
Open-Loop Gain and Phase Margin vs. Frequency
200
10
150
Open-Loop Gain (dB)
Closed-Loop Output Impedance (Ω)
Closed-Loop Output Impedance vs. Frequency
100
1
0.1
0.01
0.001
100
200
100
100
50
50
Open-Loop Gain
0
10k
100k
1M
10M
100M
1G
-50
1k
10k
100k
10M
100M
1G
Frequency Response vs. Capacitive Load
10
0
0.3
Normalized Gain (dB)
Normalized Gain (dB)
1M
Frequency (Hz)
VOUT = 0.1VPP, G = +2, RF = 600Ω, RL = 1kΩ
0.2
0.1
0
-0.1
-0.2
-0.3
VOUT = 0.1VPP
-10
RS = 0Ω, CL = 5.6pF
-20
RS = 140Ω, CL = 47pF
-30
RS = 120Ω, CL = 100pF
-40
-50
-0.4
-0.5
100k
0
-50
1k
0.1dB Gain Flatness
0.4
150
Phase Shift
Frequency (Hz)
0.5
100
Open-Loop Phase (Degree)
80
Output Voltage (VPP)
CMRR, PSRR (dB)
100
1M
10M
Frequency (Hz)
SG Micro Corp
www.sg-micro.com
100M
-60
100k
1M
10M
100M
1G
Frequency (Hz)
OCTOBER 2019
8
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V, G = +1, RL = 1kΩ and connected to VS/2, unless otherwise noted.
Channel-to-Channel Crosstalk (SGM80582)
Channel-to-Channel Crosstalk (SGM80584)
0
Crosstalk, Input-Referred (dB)
Crosstalk, Input-Referred (dB)
0
-30
-60
-90
-120
-150
100k
1M
10M
100M
-40
-80
-120
-160
-200
100k
1G
1M
Frequency (Hz)
Input Voltage Noise Density vs. Frequency
2640 Samples
1 Production Lot
9
6
3
0
-2
-1.5
-1
-0.5
0
0.5
Offset Voltage (mV)
SG Micro Corp
www.sg-micro.com
1G
1000
Input Voltage Noise Density (nV√Hz)
Percentage of Amplifiers (%)
12
100M
Frequency (Hz)
Offset Voltage Production Distribution
15
10M
1
1.5
2
100
10
1
100
1k
10k
100k
1M
Frequency (Hz)
OCTOBER 2019
9
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
APPLICATION INFORMATION
The SGM80581/2/4 are CMOS, rail-to-rail I/O, high-speed,
voltage-feedback operational amplifiers designed for
video, high-speed and other applications. They are
available as single, dual or quad operational amplifiers.
The amplifier features a 100MHz gain-bandwidth product,
and 160V/μs slew rate. It is unity-gain stable and can
be operated as a +1V/V voltage follower.
Operating Voltage
The SGM80581/2/4 are specified over a power supply
range of 2.7V to 5.5V (±1.35V to ±2.75V). However, the
supply voltage may range from 2.5V to 5.5V (±1.25V to
±2.75V). Supply voltages higher than 6V (absolute
maximum) can permanently damage the amplifier.
Rail-to-Rail Output
A class AB output stage with common-source transistors
is used to achieve rail-to-rail output. For high-impedance
loads (> 1kΩ), the output voltage swing is typically within
15mV from the supply rails.
Rail-to-Rail Input
The specified input common mode voltage range of the
SGM80581/2/4 extends 100mV beyond the supply rails.
This is achieved with a complementary input stage, an
N-channel input differential pair in parallel with a
P-channel differential pair, as shown in Figure 1. The
N-channel pair is active for input voltages close to the
positive rail, typically (+VS) - 1.2V to 100mV above the
positive supply, while the P-channel pair is on for input
voltages from 100mV below the negative supply to
approximately (+VS) - 1.2V. There is a small transition
region, typically (+VS) - 1.5V to (+VS) - 0.9V, in which
both pairs are on. This 600mV transition region can
vary ±500mV with process variation. Thus, the transition
region (both input stages on) can range from (+VS) 2.0V to (+VS) - 1.5V on the low end, up to (+VS) - 0.9V
to (+VS) - 0.4V on the high end.
A folded-cascode adds the signal from the two input
pairs and presents a differential signal to the class AB
output stage.
+VS
Reference
Current
+IN
-IN
VBIAS1
Class AB
Control
Circuitry
OUT
VBIAS2
-VS
Figure 1. Simplified Schematic
SG Micro Corp
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OCTOBER 2019
10
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
APPLICATION INFORMATION (continued)
Output Drive
R2
10kΩ
The SGM80581’s output stage can supply a continuous
output current of ±100mA, as shown in Figure 2. For
maximum reliability, it is not recommended to run a
continuous DC current in excess of ±110mA. For
supplying continuous output currents greater than
±110mA, the SGM80581 may be operated in parallel,
as shown in Figure 3.
The on-chip thermal shutdown circuit is provided to
protect the SGM80581/2/4 from dangerously high
junction temperatures. At +150℃, the protection circuit
will shut down the amplifier. Normal operation will
resume when the junction temperature cools to below
+130℃.
C1
200pF
+5V
R1
100kΩ
1μF
_
12
SGM80582
R3
100kΩ
+
_
+
+5V
2V In = 200mA
out, as shown
R5
1Ω
1μF
_
RSHUNT
1Ω
12
SGM80582
R2
1kΩ
C1
50pF
+
_
+
5V
R4
1kΩ
1μF
R1
10kΩ
_
R3
10kΩ
1V In = 100mA
out, as shown
R4
1kΩ
Figure 2. Laser Diode Driver
Figure 3. Parallel Operation
RSHUNT
1Ω
Laser Diode
Video
The SGM80581 output stage is capable of driving
standard back-terminated 75Ω video cables, as shown
in Figure 4. By back-terminating a transmission line, it
does not exhibit a capacitive load to its driver. A
properly back-terminated 75Ω video cable does not
appear as capacitance; it presents only a 150Ω resistive
load to the SGM80581 output. The SGM80581/2/4 can
be used as an amplifier for RGB graphic signals, which
have a voltage of zero at the video black level, by
offsetting and AC-coupling the signal. See Figure 5.
+5V
Video
IN
75Ω
+2.5V
+2.5V
600Ω
75Ω
SGM80581
Video
OUT
_
_
-VS
+
+
VIN
Laser Diode
+VS
SGM80581
+
R6
1Ω
600Ω
Figure 4. Single-Supply Video Line Driver
SG Micro Corp
www.sg-micro.com
OCTOBER 2019
11
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
APPLICATION INFORMATION (continued)
600Ω
+3V
1μF
600Ω
+VS
_
10nF
75Ω
1 2
SGM80582
R1
RED (1)
RED
75Ω
+
R2
+VS
R1
+
GREEN (1)
75Ω
12
SGM80582
R2
GREEN
75Ω
600Ω
_
NOTE: (1) Source video signal offset
300mV above ground to accomodate
operational amplifier swing-to-ground
capability.
600Ω
600Ω
+3V
1μF
600Ω
+VS
R1
_
10nF
75Ω
SGM80581
+
BLUE (1)
BLUE
75Ω
R2
Figure 5. RGB Cable Driver
SG Micro Corp
www.sg-micro.com
OCTOBER 2019
12
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
APPLICATION INFORMATION (continued)
Driving Analog-to-Digital Converters
The SGM80581/2/4 offer 75ns of settling time to 0.1%,
making them good choices for driving high- and
medium-speed sampling A/D converters and reference
circuits. The SGM80581/2/4 provide effective means of
buffering the A/D converter’s input capacitance and
resulting charge injection while providing signal gain.
Figure 6 illustrates the SGM80581 driving an A/D
converter. With the SGM80581 in an inverting configuration,
a capacitor across the feedback resistor can be used to
filter high-frequency noise in the signal.
Capacitive Load and Stability
The SGM80581/2/4 can drive a wide range of capacitive
loads. However, all operational amplifiers under certain
conditions may become unstable. Operational amplifier
configuration, gain and load value are just a few of the
factors to consider when determining stability. An
operational amplifier in unity-gain configuration is most
susceptible to the effects of capacitive loading. The
capacitive load reacts with the operational amplifier’s
output resistance, along with any additional load
resistance, to create a pole in the small-signal response
that degrades the phase margin.
One method of improving capacitive load drive in the
unity-gain configuration is to insert a resistor in series
with the output, as shown in Figure 7. This significantly
reduces ringing with large capacitive loads. However, if
there is a resistive load in parallel with the capacitive
load, RS creates a voltage divider. This introduces a DC
error at the output and slightly reduces output swing.
This error may be insignificant.
+5V
330pF
VIN
5kΩ
5kΩ
SGM80581
+
+2.5V
VREF
+VS
_
+IN
12-Bit A/D Converter
-IN
GND
NOTE: A/D Converter Input = 0V to VREF
VIN = 0V to -5V for 0V to 5V output
Figure 6. The SGM80581 in Inverting Configuration Driving an ADC
+VS
_
SGM80581
VIN
+
RS
VOUT
RL
CL
Figure 7. Series Resistor in Unity-Gain Configuration Improves Capacitive Load Drive
SG Micro Corp
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OCTOBER 2019
13
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
APPLICATION INFORMATION (continued)
Wideband Transimpedance Amplifier
PCB Layout
Wide bandwidth, low input bias current, low input
voltage and current noise make the SGM80581/2/4
ideal wideband photodiode transimpedance amplifiers
for low-voltage single-supply applications. Low-voltage
noise is important because photodiode capacitance
causes the effective noise gain of the circuit to increase
at high frequency.
Good high-frequency printed circuit board (PCB) layout
techniques should be employed for the SGM80581/2/4.
Generous use of ground planes, short and direct signal
traces, and a suitable bypass capacitor located close to
the +VS pin will assure clean, stable operation. Large
areas of copper also provide a means of dissipating
heat that is generated in normal operation.
The key elements to a transimpedance design, as
shown in Figure 8, are the expected diode capacitance,
the desired transimpedance gain (RF), and the
gain-bandwidth product (GBP) of the SGM80581
(100MHz). With these 3 variables set, the feedback
capacitor value (CF) may be set to control the frequency
response.
Sockets are definitely not recommended for use with
any high-speed amplifier.
CF < 1pF
(prevents gain peaking)
Power Dissipation
RF
10MΩ
Power dissipation depends on power supply voltage,
signal and load conditions. With DC signals, power
dissipation is equal to the product of output current
times the voltage across the conducting output
transistor, VS - VOUT. Power dissipation can be minimized
by using the lowest possible power-supply voltage
necessary to assure the required output voltage swing.
+VS
_
λ
CD
SGM80581
VOUT
+
Figure 8. Transimpedance Amplifier
To achieve a maximally flat 2nd-order Butterworth
frequency response, the feedback pole should be set
to:
1
=
2πRFCF
GBP
4πRFCD
(1)
Typical surface-mount resistors have a parasitic
capacitance of around 0.2pF that must be deducted
from the calculated feedback capacitance value.
Bandwidth is calculated by:
GBP
(2)
f−3dB =
Hz
2πRFCD
SG Micro Corp
www.sg-micro.com
A 10nF ceramic bypass capacitor is the minimum
recommended value; adding a 1μF or larger tantalum
capacitor in parallel can be beneficial when driving a
low-resistance load. Providing adequate bypass
capacitance is essential to achieve very low harmonic
and intermodulation distortion.
For resistive loads, the maximum power dissipation
occurs at a DC output voltage of one-half the power
supply voltage. Dissipation with AC signals is lower.
Any tendency to activate the thermal protection circuit
indicates excessive power dissipation or an inadequate
heatsink. For reliable operation, junction temperature
should be limited to +150℃ (maximum). To estimate
the margin of safety in a complete design, increase the
ambient temperature until the thermal protection is
triggered at +150℃. The thermal protection should be
triggered at more than +35℃ above the maximum
expected ambient condition of your application.
OCTOBER 2019
14
SGM80581/SGM80582
SGM80584
220MHz, Rail-to-Rail I/O,
CMOS Operational Amplifiers
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
OCTOBER 2019 ‒ REV.A.1 to REV.A.2
Page
Updated Marking Information section................................................................................................................................................................... 2
JUNE 2019 ‒ REV.A to REV.A.1
Page
Updated Electrical Characteristics section ........................................................................................................................................................... 4
Changes from Original (DECEMBER 2016) to REV.A
Page
Changed from product preview to production data ............................................................................................................................................. All
SG Micro Corp
www.sg-micro.com
OCTOBER 2019
15
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-5
1.90
D
e1
E1
2.59
E
0.99
b
e
0.69
0.95
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
θ
A2
Symbol
Dimensions
In Millimeters
MIN
MAX
c
0.2
Dimensions
In Inches
MIN
MAX
A
1.050
1.250
0.041
0.049
A1
0.000
0.100
0.000
0.004
A2
1.050
1.150
0.041
0.045
b
0.300
0.500
0.012
0.020
c
0.100
0.200
0.004
0.008
D
2.820
3.020
0.111
0.119
E
1.500
1.700
0.059
0.067
E1
2.650
2.950
0.104
0.116
e
0.950 BSC
0.037 BSC
e1
1.900 BSC
0.075 BSC
SG Micro Corp
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L
0.300
0.600
0.012
0.024
θ
0°
8°
0°
8°
TX00033.000
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
Symbol
Dimensions
In Millimeters
MIN
MAX
Dimensions
In Inches
MIN
MAX
A
1.350
1.750
0.053
0.069
A1
0.100
0.250
0.004
0.010
A2
1.350
1.550
0.053
0.061
b
0.330
0.510
0.013
0.020
c
0.170
0.250
0.006
0.010
D
4.700
5.100
0.185
0.200
E
3.800
4.000
0.150
0.157
E1
5.800
6.200
0.228
0.244
e
SG Micro Corp
www.sg-micro.com
1.27 BSC
0.050 BSC
L
0.400
1.270
0.016
0.050
θ
0°
8°
0°
8°
TX00010.000
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
A1
c
θ
A2
Symbol
Dimensions
In Millimeters
MIN
MAX
Dimensions
In Inches
MIN
MAX
A
0.820
1.100
0.032
0.043
A1
0.020
0.150
0.001
0.006
A2
0.750
0.950
0.030
0.037
b
0.250
0.380
0.010
0.015
c
0.090
0.230
0.004
0.009
D
2.900
3.100
0.114
0.122
E
2.900
3.100
0.114
0.122
E1
4.750
5.050
0.187
0.199
e
SG Micro Corp
www.sg-micro.com
0.650 BSC
0.026 BSC
L
0.400
0.800
0.016
0.031
θ
0°
6°
0°
6°
TX00014.000
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOIC-14
D
E
5.2
E1
2.2
e
b
0.6
1.27
RECOMMENDED LAND PATTERN (Unit: mm)
L1
R1
R
A3
A A2
h
L2
θ
A1
Symbol
h
L
Dimensions
In Millimeters
MIN
MAX
Dimensions
In Inches
MIN
MAX
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.004
0.010
A2
1.25
1.65
0.049
0.065
A3
0.55
0.75
0.022
0.030
b
0.36
0.49
0.014
0.019
D
8.53
8.73
0.336
0.344
E
5.80
6.20
0.228
0.244
E1
3.80
4.00
0.150
e
L
1.27 BSC
0.45
L1
0.80
0.018
1.04 REF
L2
0.157
0.050 BSC
0.032
0.040 REF
0.25 BSC
0.01 BSC
R
0.07
0.003
R1
0.07
0.003
h
0.30
0.50
0.012
0.020
θ
0°
8°
0°
8°
SG Micro Corp
www.sg-micro.com
TX00011.001
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
W
P0
Q1
Q2
Q1
Q2
Q1
Q2
Q3
Q4
Q3
Q4
Q3
Q4
B0
Reel Diameter
A0
P1
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
Diameter
Reel Width
W1
(mm)
A0
(mm)
B0
(mm)
K0
(mm)
P0
(mm)
P1
(mm)
P2
(mm)
W
(mm)
Pin1
Quadrant
SOT-23-5
7″
9.5
3.20
3.20
1.40
4.0
4.0
2.0
8.0
Q3
SOIC-8
13″
12.4
6.40
5.40
2.10
4.0
8.0
2.0
12.0
Q1
MSOP-8
13″
12.4
5.20
3.30
1.50
4.0
8.0
2.0
12.0
Q1
SOIC-14
13″
16.4
6.60
9.30
2.10
4.0
8.0
2.0
16.0
Q1
SG Micro Corp
www.sg-micro.com
TX10000.000
DD0001
Package Type
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)
Pizza/Carton
7″ (Option)
368
227
224
8
7″
442
410
224
18
13″
386
280
370
5
SG Micro Corp
www.sg-micro.com
DD0002
Reel Type
TX20000.000
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