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SGM8522XS/TR
Datasheet
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SG MICRO SGM8522XS/TR Datasheet

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NOVEMBER 2018 – REV. D

GENERAL DESCRIPTION

SGM8521/SGM8522/SGM8524
150kHz, 5.5μA, Rail-to-Rail I/O,
CMOS Operational Amplifiers

FEATURES

The SGM8521 (single), SGM8522 (dual) and
SGM8524 (quad) are low cost, rail-to-rail input and
output voltage feedback amplifiers. They have a wide
input common mode voltage range and output voltage
swing, and take the minimum operating supply voltage
down to 2.1V. The maximum recommended supply
voltage is 5.5V.
The SGM8521/2/4 provide 150kHz bandwidth at a low
current consumption of 5.5μA per amplifier. Very low
input bias currents enable the SGM8521/2/4 to be used
for integrators, photodiode amplifiers and piezoelectric
sensors. Rail-to-rail input and output are useful to designers for buffering ASIC in single-supply systems.
Applications for these amplifiers include safety monitoring,
portable equipment, battery and power supply control,
and signal conditioning and interfacing for transducers
in very low power systems.
The SGM8521 is available in Green SOT-23-5 and SOIC-8 packages. The SGM8522 is available in Green SOIC-8 and MSOP-8 packages. The SGM8524 is available in Green SOIC-14 and TSSOP-14 packages.
They are specified over the extended -40℃ to +125℃
temperature range.
● Low Cost
● Rail-to-Rail Input and Output
● Input Offset Voltage: 3.5mV (MAX)
● Unity Gain Stable
● Gain-Bandwidth Product: 150kHz
● Supply Voltage Range: 2.1V to 5.5V
● Input Voltage Range:
-0.1V to 5.6V with V
● Low Supply Current: 5.5μA/Amplifier
● Small Packaging:
SGM8521 Available in Green SOIC-8 and
SOT-23-5 Packages
SGM8522 Available in Green SOIC-8 and MSOP-8
Packages
SGM8524 Available in Green SOIC-14 and
TSSOP-14 Packages
= 5.5V
S

APPLICATIONS

ASIC Input or Output Amplifiers Sensor Interfaces
Piezoelectric Transducer Amplifiers Medical Instrumentation
Mobile Communications Audio Outputs
Portable Systems
Smoke Detectors
Mobile Telephones
Notebook PCs PCMCIA Cards
Battery-Powered Equipment
www.sg-micro.com
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
2
NOVEMBER 2018
SPECIFIED
RANGE
SGM8522
XXXXX
SGM8524
XXXXX
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
Date Code - Week
Vendor Code
Date Code - Year
X XXX X
SGM8524 CMOS Operational Amplifiers

PACKAGE/ORDERING INFORMATION

MODEL
SGM8521
SGM8522
SGM8524
PACKAGE
DESCRIPTION
SOT-23-5
SOIC-8
SOIC-8
MSOP-8
SOIC-14
TSSOP-14
TEMPERATURE
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
ORDERING
NUMBER
SGM8521XN5/TR 8521 Tape and Reel, 3000
SGM8521XS/TR
SGM8522XS/TR
SGM8522XMS/TR
SGM8524XS14/TR
SGM8524XTS14/TR
PACKAGE
MARKING
SGM8521XS
XXXXX
SGM8522XS
XXXXX
XMS
SGM8524XS14
XXXXX
XTS14
PACKING
OPTION
Tape and Reel, 2500
Tape and Reel, 2500
Tape and Reel, 3000
Tape and Reel, 2500
Tape and Reel, 3000
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) - 0.3V to (+VS) + 0.3V
Package Thermal Resistance @ T
SOT-23-5, θJA .......................................................... 190℃/W
SOIC-8, θJA .............................................................. 125℃/W
MSOP-8, θ
Junction Temperature ................................................. +150℃
Storage Temperature Range ....................... -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................ +260℃
ESD Susceptibility
HBM ............................................................................. 4000V
MM ................................................................................. 400V
............................................................ 216℃/W
JA
= +25℃
A

RECOMMENDED OPERATING CONDITIONS

Operating Temperature Range ..................... -40℃ to +125℃
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings may cause permanent damage to the device. Exposure 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.
to
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 integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
degradation to complete device failure. Precision
DISCLAIMER
SG Micro Corp reserves the right to make any change in circuit
design, or specifications without prior notice.
www.sg-micro.com
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
3
NOVEMBER 2018
SGM8522 (TOP VIEW)
SGM8521 (TOP VIEW)
OUTA
OUTB
+INB
+V
S
5
6
7
81
4
-INA
+INA
-V
S
-INB
2
3
+
_
+
_
+
V
S
-
IN
-V
S
+IN
OUT
5
43
1
2
+
_
SOT-23-5
SOIC-8/MSOP-8
SGM8524 (TOP VIEW)
SGM8521 (TOP VIEW)
10
11
12
13
14
1
2
3
4
5
OUTA
-INA
+INA
-V
S
+V
S
-IND
+IND
6
7
9
8
-INB
+INB
-INC
OUTB OUTC
+INC
OUTD
+
_
+
_
+
_
+
_
NC
OUT
NC
NC
1
2
3
4
-IN
+IN
-V
S
+V
S
NC = NO CONNECT
5
6
7
8
+
_
TSSOP-14/SOIC-14
SGM8524 CMOS Operational Amplifiers

PIN CONFIGURATIONS

SOIC-8
www.sg-micro.com
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
4
NOVEMBER 2018
Hz
SGM8524 CMOS Operational Amplifiers

ELECTRICAL CHARACTERISTICS

(At TA = +25℃, VS = 5V, RL = 500kΩ connected to VS/2 and V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Offset Voltage VOS 1 3.5 mV
Input Bias Current IB 3 pA
Input Offset Current IOS 3 pA
= VS/2, unless otherwise noted.)
OUT
Input Offset Voltage Drift ΔVOS/ΔT 2
Quiescent Current/Amplifier IQ 5.5 μA
V
= 0.015V to 4.985V, RL = 500kΩ 90 110
Open-Loop Voltage Gain AOL
Common Mode Rejection Ratio CMRR
Power Supply Rejection Ratio PSRR VS = 2.5V to 5.5V, VCM = 0.5V 65 94 dB
I
Output Current
Output Voltage Swing
Gain-Bandwidth Product GBP 150 kHz
Slew Rate SR RL = 100kΩ 0.05 V/μs
Input Voltage Noise Density en
SOURCE
I
SINK
V
OH
VOL 0.005 0.010
OUT
V
= 0.1V to 4.9V, RL = 100kΩ 88 108
OUT
V
= 5.5V, -0.1V < VCM < 5.6V 60 87
S
VS = 5.5V, -0.1V < VCM < 4V 70 114
= 10Ω to VS/2
R
L
60 76
f = 1kHz 85
f = 10kHz 44
61 87
4.990 4.997
μV/℃
mA
nV/
dB
dB
V
www.sg-micro.com
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
5
NOVEMBER 2018
Small-Signal Step Response
Large-Signal Step Response
CMRR and PSRR vs. Frequency
Maximum Output Voltage vs. Frequency
Small-Signal Overshoot vs. Capacitive Load
Open-Loop Gain and Phase vs. Frequency
Output Voltage (50mV/div)
Output Voltage (500mV/div)
90
CMRR and PSRR (dB)
6
70
0
60
SGM8524 CMOS Operational Amplifiers

TYPICAL PERFORMANCE CHARACTERISTICS

At TA = +25℃, VS = 5V and RL = 500kΩ connected to VS/2, unless otherwise noted.
VS = 5V
C
= 100pF
L
R
= 100kΩ
L
Time (50μs/div)
80
70
60
50
CMRR
PSRR
VS = 5V
C
= 100pF
L
R
= 100kΩ
L
Time (100μs/div)
5
)
VS = 5.5V
PP
4
3
2
Output Voltage (V
1
VS = 5V
VS = 2.5V
40
0.01 0.1 1 10 100 1000
60
50
40
30
20
Small-Signal Overshoot (%)
10
0
10 100 1000
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Frequency (kHz)
G = +1 R
= 500kΩ
L
G = -1 R
= 560kΩ
FB
Load Capacitance (pF)
0
1 10 100
Frequency (kHz)
-30
-60
-90
-120
-150
-180
Phase (Degree)
RL = 500kΩ C
= 50pF
40
20
0
-20
Open-Loop Gain (dB)
-40
-60
0.1 1 10 100 1000
Phase
Frequency (kHz)
Open-Loop Gain
L
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
6
NOVEMBER 2018
Supply Current vs. Temperature
Open-Loop Gain vs. Temperature
CMRR vs. Temperature
PSRR vs. Temperature
Output Voltage vs. Output Current
Output Voltage vs. Output Current
9
140
110
140
6
3
SGM8524 CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V and RL = 500kΩ connected to VS/2, unless otherwise noted.
8
7
6
5
Supply Current (μA)
4
3
-50 -25 0 25 50 75 100 125
Temperature (℃)
100
90
80
CMRR (dB)
70
CMRR_H
CMRR_L
130
120
110
100
Open–Loop Gain (dB)
90
80
-50 -25 0 25 50 75 100 125
120
100
80
PSRR (dB)
60
RL = 100kΩ
RL = 500kΩ
Temperature (℃)
60
50
-50 -25 0 25 50 75 100 125
5
4
VS = 5V
3
2
Output Voltage (V)
1
0
0 20 40 60 80 100 120 140 160
Output Current (mA)
Temperature (℃)
Sourcing Current
+135℃
+25℃
+135℃
+25℃
-55℃
-55℃
Sinking Current
40
20
-50 -25 0 25 50 75 100 125
Temperature (℃)
+135℃
2.5
2
VS = 3V
1.5
1
Output Voltage (V)
0.5
0
0 10 20 30 40 50 60
+135℃
Output Current (mA)
Sourcing Current
+25℃
-55℃
-55℃
+25℃
Sinking Current
www.sg-micro.com
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
7
NOVEMBER 2018
Short-Circuit Current vs. Supply Voltage
Supply Current vs. Supply Voltage
Input Voltage Noise Density vs. Frequency
120
7
1000
Input Voltage Noise Density (nV/
SGM8524 CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VS = 5V and RL = 500kΩ connected to VS/2, unless otherwise noted.
100
80
60
40
20
Short-Circuit Current (mA)
0
-20 0 1 2 3 4 5 6 7
Supply Voltage (V)
√Hz)
100
10
6
5
4
3
2
Supply Current (μA)
1
0
-1 0 1 2 3 4 5 6 7
Supply Voltage (V)
1
0.1 1 10 100
Frequency (kHz)
www.sg-micro.com
SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
8
NOVEMBER 2018
V
IN
V
OUT
SGM8521
C
L
R
ISO
V
IN
V
OUT
SGM8521
C
L
R
ISO
R
L
R
F
C
F
SGM8521
+V
S
V
N
V
P
-V
S
V
OUT
SGM8521
V
N
V
P
+V
S
-VS (GND)
V
OUT
10μF
0.1μF
10μF
0.1μF
10
μF
0.1μF
SGM8524 CMOS Operational Amplifiers

APPLICATION NOTES

Driving Capacitive Loads

The SGM8521/2/4 can directly drive 250pF in unity-gain without oscillation. The unity-gain follower (buffer) is the most sensitive configuration to capacitive loading. Direct capacitive loading reduces the phase margin of amplifiers and this results in ringing or even
oscillation. Applications that require greater capacitive
driving capability should use an isolation resistor between the output and the capacitive load like the circuit in Figure 1. The isolation resistor R
load capacitor C
bigger the R
form a zero to increase stability. The
L
resistor value, the more stable V
ISO
be. Note that this method results in a loss of gain accuracy because R R
.
LOAD
Figure 1. Indirectly Driving Heavy Capacitive Load
forms a voltage divider with the
ISO
An improved circuit is shown in Figure 2. It provides DC accuracy as well as AC stability. R
provides the DC
F
accuracy by connecting the inverting input with the output. C
and R
F
serve to counteract the loss of
ISO
phase margin by feeding the high frequency component of the output signal back to the amplifier’s inverting input, thereby preserving phase margin in the overall feedback loop.
and the
ISO
OUT
will
For non-buffer configuration, there are two other ways to increase the phase margin: (a) by increasing the amplifier’s closed-loop gain or (b) by placing a capacitor in parallel with the feedback resistor to counteract the parasitic capacitance associated with inverting node.

Power Supply Bypassing and Layout

The SGM8521/2/4 family operates from either a single
2.1V to 5.5V supply or dual ±1.05V to ±2.75V supplies. For single-supply operation, bypass the power supply +V
with a 0.1µF ceramic capacitor which should be
S
placed close to the +V both the +V
and the -VS supplies should be bypassed
S
to ground with separate 0.1µF ceramic capacitors.
2.2µF tantalum capacitor can be added for better performance.
Figure 3. Amplifier with Bypass Capacitors
pin. For dual-supply operation,
S
Figure 2. Indirectly Driving Heavy Capacitive Load with
DC Accuracy
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SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
9
NOVEMBER 2018
V
N
V
P
V
OUT
SGM8521
V
REF
R
1
R
2
R
3
R
4
V
N
V
P
SGM8521
V
REF
R
1
R
2
R
3
R
4
V
OUT
SGM8521
SGM8521
V
IN
V
OUT
SGM8521
R
1
R
2
R
3
= R
1
// R
2
C
SGM8524 CMOS Operational Amplifiers
APPLICATION NOTES (continued)

Differential Amplifier

The circuit shown in Figure 4 performs the difference function. If the resistor ratios are equal (R then V
= (VP - VN) × R2/R1 + V
OUT
Figure 4. Differential Amplifier
REF
.
= R2/R1),
4/R3

Instrumentation Amplifier

The circuit in Figure 5 performs the same function as that in Figure 4 but with a high input impedance.

Active Low-Pass Filter

The low-pass filter shown in Figure 6 has a DC gain of (-R
) and the -3dB corner frequency is 1/2πR2C.
2/R1
Make sure the filter bandwidth is within the bandwidth of the amplifier. Feedback resistors with large values can couple with parasitic capacitance and cause undesired effects such as ringing or oscillation in high-speed amplifiers. Keep resistor values as low as possible and consistent with output loading consideration.
Figure 6. Active Low-Pass Filter
Figure 5. Instrumentation Amplifier
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SGM8521/SGM8522 150kHz, 5.5μA, Rail-to-Rail I/O,
10
NOVEMBER 2018
SGM8524 CMOS Operational Amplifiers

REVISION HISTORY

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
NOVEMBER 2018 ‒ REV.C.4 to REV.D
Changed Open-Loop Gain and Phase vs. Frequency .......................................................................................................................................... 6
JULY 2017 ‒ REV.C.3 to REV.C.4
Added Open-Loop Gain and Phase vs. Frequency .............................................................................................................................................. 6
JANUARY 2017 ‒ REV.C.2 to REV.C.3
Changed Electrical Characteristics section .......................................................................................................................................................... 4
Updated SOIC-14 and TSSOP-14 packages ............................................................................................................................................... 13, 14
Updated Tape and Reel Information section ...................................................................................................................................................... 15
APRIL 2013 ‒ REV.C.1 to REV.C.2
Changed Electrical Characteristics section .......................................................................................................................................................... 3
Changed Input Voltage Noise Density vs. Frequency........................................................................................................................................... 4
NOVEMBER 2012 ‒ REV.C to REV.C.1
Added SGM8524 ............................................................................................................................................................................................... All
www.sg-micro.com
TX00033.000
PACKAGE OUTLINE DIMENSIONS
Dimensions
In Millimeters
Dimensions
In Inches
E
1.500
1.700
0.059
0.067
EE1
e
e1
b
D
A1
A2
A
c
L
θ
0.2
RECOMMENDED LAND PATTERN (Unit: mm)
1.90
2.59
0.99
0.69
0.95
SOT-23-5
PACKAGE INFORMATION
Symbol
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
E1 2.650 2.950 0.104 0.116
e 0.950 BSC 0.037 BSC
e1 1.900 BSC 0.075 BSC
L 0.300 0.600 0.012 0.024
θ 0° 8° 0° 8°
MIN MAX MIN MAX
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TX00010.000
PACKAGE OUTLINE DIMENSIONS
Dimensions
In Millimeters
Dimensions
In Inches
D
EE1
e
b
A
A2
A1
c
L
θ
1.27
0.6
2.2
5.2
RECOMMENDED LAND PATTERN (Unit: mm)
SOIC-8
PACKAGE INFORMATION
Symbol
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 1.27 BSC 0.050 BSC
L 0.400 1.270 0.016 0.050
θ 0° 8° 0° 8°
MIN MAX MIN MAX
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TX00014.000
PACKAGE OUTLINE DIMENSIONS
Dimensions
In Millimeters
Dimensions
In Inches
E
2.900
3.100
0.114
0.122
E1 E
e
D
A1
L
c
A
A2
θ
b
RECOMMENDED LAND PATTERN (Unit: mm)
1.02
0.41
0.65
4.8
MSOP-8
PACKAGE INFORMATION
www.sg-micro.com
Symbol
MIN MAX 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
E1 4.750 5.050 0.187 0.199
e 0.650 BSC 0.026 BSC
L 0.400 0.800 0.016 0.031
θ 0° 6° 0° 6°
TX00011.001
PACKAGE OUTLINE DIMENSIONS
Dimensions
In Millimeters
Dimensions
In Inches
A1
0.10
0.25
0.004
0.010
L2
0.25 BSC
0.01 BSC
RECOMMENDED LAND PATTERN
(Unit: mm)
D
E1
E
θ
L1
L2
A3
A
A2
5.2
1.27
0.6
2.2
e
b
A1
L
h
h
R
R1
SOIC-14
PACKAGE INFORMATION
Symbol
MIN MAX MIN MAX
A 1.35 1.75 0.053 0.069
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 0.157
e 1.27 BSC 0.050 BSC
L 0.45 0.80 0.018 0.032
L1 1.04 REF 0.040 REF
R 0.07 0.003
R1 0.07 0.003
h 0.30 0.50 0.012 0.020
θ 0° 8° 0° 8°
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TX00019.001
PACKAGE OUTLINE DIMENSIONS
Dimensions
In Millimeters
Dimensions
In Inches
E
E1
D
b
A
A1
A2
θ
L
c
H
e
RECOMMENDED LAND PATTERN (Unit: mm)
5.94
0.42
1.78
0.65
TSSOP-14
PACKAGE INFORMATION
Symbol
MIN MAX MIN MAX
A 1.200 0.047
A1 0.050 0.150 0.002 0.006
A2 0.800 1.050 0.031 0.041
b 0.190 0.300 0.007 0.012
c 0.090 0.200 0.004 0.008
D 4.860 5.100 0.191 0.201
E 4.300 4.500 0.169 0.177
E1 6.250 6.550 0.246 0.258
e 0.650 BSC 0.026 BSC
L 0.500 0.700 0.02 0.028
H 0.25 TYP 0.01 TYP
θ 1° 7° 1° 7°
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TX10000.000
TAPE AND REEL INFORMATION
Reel Width
(mm)
DD0001
Reel Width (W1)
Reel Diameter
REEL DIMENSIONS
TAPE DIMENSIONS
DIRECTION OF FEED
P2
P0
W
P1
A0 K0
B0
Q1
Q2
Q4
Q3
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
PACKAGE INFORMATION
Package Type
Reel
Diameter
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
TSSOP-14 13″ 12.4 6.95 5.60 1.20 4.0 8.0 2.0 12.0 Q1
W1
A0
(mm)
B0
(mm)
K0
(mm)
P0
(mm)
P1
(mm)
P2
(mm) W (mm)
Pin1
Quadrant
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TX20000.000
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
PACKAGE INFORMATION
Reel Type
7″ (Option) 368 227 224 8
7″ 442 410 224 18
13″ 386 280 370 5
Length
(mm)
Width
(mm)
Height
(mm)
Pizza/Carton
DD0002
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