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Preliminary Datasheet
SGM8521
SGM8522
SGM8524
150KHz, 4.7µA, Rail-to-Rail I/O
CMOS Operational Amplifier
PRODUCT DESCRIPTION
The SGM8521 (single)SGM8522 (dual) and SGM8524
(quad) are rail-to-rail input and output voltage feedback
amplifiers offering low cost. They have a wide input
www.DataSchoemet4mUo.cnom-mode voltage range and output voltage swing,
and take the minimum operating supply voltage down to
2.1V and the maximum recommended supply voltage is
5.5 V. All are specified over the extended –40°C to
+125°C temperature range.
The SGM8521/8522/8524 provide150KHz bandwidth at a
low current consumption of 4.7µA per amplifier. Very
low input bias currents of 0.5pA, enable the
SGM8521/8522/8524 to be used for integrators,
photodiode amplifiers, and piezoelectric sensors.
Rail-to-Rail inputs and outputs are useful to designers
buffering ASIC in single-supply systems.
Applications for these amplifiers include safety monitor-
ing, portable equipment, battery and power supply
control, and signal conditioning and interfacing for
transducers in very low power systems.
The SGM8521 is available in the tiny SOT23-5 and SO-8
packages. The SGM8522 comes in the miniature SO-8 and
MSOP-8 packages. The SGM8524 is offered in TSSOP-16
SO-16 and SO-14 packages.
APPLICATIONS
ASIC Input or Output Amplifier
Sensor Interface
Piezo Electric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable Systems
Smoke Detectors
Mobile Telephone
Notebook PC
PCMCIA cards
Battery-Powered equipment
FEATURES
Low Cost
Rail-to-Rail Input and Output
0.8mV Typical VOS
Unity Gain Stable
Gain Bandwidth Product: 150KHz
Very low input bias currents : 0.5pA
Operates on 2.1 V to 5.5 V Supplies
Input Voltage Range = - 0.1 V to +5.6 V with VS = 5.5V
Low Supply Current: 4.7µA/Amplifier
Small Packaging
SGM8521 Available in SO-8 and SOT23-5
SGM8522 Available in SO-8 and MSOP-8
SGM8524 Available in SO-16, SO-14 and
TSSOP-16
PIN CONFIGURATIONS (Top View)
SGM8521
OUT 1
-VS 2
5 +VS
+IN 3
4 -IN
SOT23-5
SGM8521
NC 1
8 NC
-IN 2
7 +VS
+IN 3
6 OUT
-VS 4 NC = NO CONNECT 5 NC
OUT A 1
-INA 2
+INA 3
-VS 4
SO-8
OUT A 1
-IN A 2
+IN A 3
+VS 4
+INB 5
-IN B 6
OUT B 7
SGM8524
SO-14
14 OUT D
13 -IND
12 +IND
11 -VS
10 +INC
9 -INC
8 OUT C
OUT A
-IN A
+IN A
+VS
+IN B
-IN B
OUT B
NC
1
2
3
4
5
6
7
8
SGM8522
8 +VS
7 OUT B
6 -INB
5 +INB
SO-8 / MSOP-8
SGM8524
16 OUT D
15 -IND
14 +IND
13 -VS
12 +INC
11 -INC
NC = NO CONNECT
10 OUT C
9 NC
SO-16/TSSOP-16
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. B

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ELECTRICAL CHARACTERISTICS : VS = +5V
(At RL = 500kΩ connected to Vs/2 and VOUT = Vs/2, unless otherwise noted)
PARAMETER
Symbol
CONDITION
TYP
+25
SGM8521/8522/8524
MIN/MAX OVER TEMPERATURE
+25 0to - 40to - 40to
MIN/
70+85+125UNITS MAX
INPUT CHARACTERISTICS
www.DataShIeneptu4tUO.fcfosemt Voltage
Input Bias Current
Input Offset Current
Common-Mode Voltage Range
Common-Mode Rejection Ratio
VOS
IB
IOS
VCM
CMRR
Open-Loop Voltage Gain
AOL
Input Offset Voltage Drift
VOS/T
±0.8
±3.5
0.5
0.5
VS = 5.5V
VS = 5.5V, VCM = -0.1V to 4 V
VS = 5.5V, VCM = -0.1V to 5.6 V
RL= 100K,Vo = 0.1V to 4.9V
RL=500K,Vo = 0.015V to 4.965V
-0.1 to +5.6
91
83
100
104
1.7
72
63
84
90
mV
pA
pA
V
dB
dB
dB
dB
µV/
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
OUTPUT CHARACTERISTICS
Output Voltage Swing from Rail
Output Current
Short-Circuit Current
IOUT
ISC
RL = 500K
0.005
22
V MAX
mA MIN
mA TYP
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio PSRR
Quiescent Current / Amplifier
DYNAMIC PERFORMANCE
Gain-Bandwidth Product
Slew Rate
Settling Time to 0.1%
Overload Recovery Time
IQ
GBP
SR
tS
Vs = +2.5 V to + 5.5 V
VCM = (-VS) + 0.5
IOUT = 0
CL = 100pF
G = +1 , 2V Output Step
G = +1, 2 V Output Step
VIN ·Gain = Vs
2.1
5.5
91
4.7
150
0.04
32
V MIN
V MAX
dB MIN
µA MAX
KHz
V/µs
µs
µs
TYP
TYP
TYP
TYP
NOISE PERFORMANCE
Voltage Noise Density
en
f = 1kHz
f = 10kHz
40
12
nV/ Hz
nV/ Hz
TYP
TYP
Specifications subject to change without notice.
SGM8521/8522/8524

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PACKAGE/ORDERING INFORMATION
MODEL
SGM8521
SGM8522
www.DataSheet4U.com
SGM8524
ORDER NUMBER
SGM8521XN5/TR
SGM8521XS/TR
SGM8522XS/TR
SGM8522XMS/TR
SGM8524XS/TR
SGM8524XS14
SGM8524XTS/TR
PACKAGE
DESCRIPTION
SOT23-5
SO-8
SO-8
MSOP-8
SO-16
SO-14
TSSOP-16
PACKAGE
OPTION
Tape and Reel, 3000
Tape and Reel, 2500
Tape and Reel, 2500
Tape and Reel, 3000
Tape and Reel, 2500
Tube
Tape and Reel, 3000
MARKING
INFORMATION
8521
SGM8521XS
SGM8522XS
SGM8522XMS
SGM8524XS
SGM8524XS14
SGM8524XTS
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V- . . . . . . . . . . . . . . . . . . . . . 7.5 V
Common-Mode Input Voltage
. . . . . . . . . . . . . . . . . . . . (–VS) – 0.5 V to (+VS )+0.5V
Storage Temperature Range . . . . . . . . .–65℃ to +150
Junction Temperature . . . . . . . . . . . . . . . .. . . . . . . .160
Operating Temperature Range . . . . . . –55to +150
Package Thermal Resistance @ TA = 25
SOT23-5, θJA.............................................................. 190/W
SO-8, θJA......................................................................125/W
MSOP-8, θJA.............................................................. 216/W
SO-16, θJA..................................................................... 82/W
TSSOP-16, θJA............................................................ 105/W
Lead Temperature Range (Soldering 10 sec)
.....................................................260
ESD Susceptibility
HBM................................................................................4000V
MM....................................................................................400V
CAUTION
This integrated circuit can be damaged by ESD.
Shengbang Micro-electronics 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.
NOTES
1. Stresses above those listed under Absolute Maximum
Ratings may cause permanent damage to the device. This is
a stress rating only; functional operation of the device at
these or any other conditions above those indicated in the
operational section of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
SGM8521/8522/8524

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TYPICAL PERFORMANCE CHARACTERISTICS
At TA= +25, VS = +5V, and RL=500kΩ connected to Vs/2,unless otherwise noted.
Small-Signal Step Response
G = +1
RL = 500K
CL = 20pF
Small-Signal Step Response
G = +1
RL = 500K
CL = 100pF
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50µs/div
Large-Signal Step Response
G = +1
CL = 100pF
RL = 500K
100µs/div
Maximum Output Voltage vs. Frequency
6
VS = 5.5V
5
4 VS = 5V
3
2
VS = 2.5V
1
Maximum Output Voltage
Without Slew-Rate
Induced Distortion
0
1 10 100
Frequency(kHz)
50µs/div
Small-Signal Overshoot vs.Load Capacitance
50
40 G=-1
RFB=560KΩ
30
20
10
0
10
G=+1
RL=500KΩ
100
Load Capacitance(pF)
1000
6
5.5
5
4.5
4
3.5
3
2
Quiescent And Short-Circuit Current
vs.Supply Voltage
20
17.5
ISC 15
12.5
IQ 10
7.5
5
2.5 3 3.5 4 4.5 5 5.5
Supply Voltage(V)
SGM8521/8522/8524

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TYPICAL PERFORMANCE CHARACTERISTICS
At TA= +25, VS = +5V, and RL=500kΩ connected to Vs/2,unless otherwise noted.
100
90
80
70
www.DataSheet4U.c6o0m
50
40
30
20
10
0
0.01
CMRR And PSRR vs.Frequency
CMRR
PSRR
0.1 1
10 100
Frequency(kHz)
1000
1000
Input Voltage Noise Spectral Density
vs.Frequency
100
10
0.01
0.1 1
10
Frequency(kHz)
100
Output Voltage Swing vs.Output Current
3
135
Sourcing Current
25
2 -50
VS = 3V
1
-50
25
135Sinking Current
0
0 4 8 12 16 20
Output Current(mA)
Supply Current vs.Temperature
7
6
VS=5V
5
4
3
2
-45 -25 -5 15 35 55 75 95 115 135
Temperature(℃)
Output Voltage Swing vs.Output Current
5
135
25
VS = 5V
4
-50
Sourcing Current
3
2
Sinking Current
1 -50
135
25
0
0 5 10 15 20 25
Output Current(mA)
30
SGM8521/8522/8524