Preliminary Datasheet
SGM8521
SGM8522
SGM8524
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
common-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.
150KHz, 4.7µA, Rail-to-Rail I/O
CMOS Operational Amplifier
FEATURES
•
Low Cost
•
Rail-to-Rail Input and Output
0.8mV Typical V
OS
•
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 V
S
= 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
-V
S
1
2
4
-IN
5
+V
S
+IN 3
SOT23-5
SGM8521
NC
-IN
+IN
-V
S
1
2
3
4
8
7
6
5
NC
+V
S
OUT
NC
+INA
-V
S
OUT A
-INA
1
2
3
4
SGM8522
8
7
6
+V
S
OUT B
-INB
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
5 +INB
NC = NO CONNECT
SO-8
SO-8 / MSOP-8
SGM8524
OUT A
-IN A
+IN A
+V
S
+INB
-IN B
OUT B
1
2
3
4
5
6
7
14 OUT D
13
-IND
+IN A
12 +IND
+V
S
11 -V
S
10 +INC
9
8
-INC
OUT C
+INB
-IN B
OUT B
NC
5
6
7
8
4
OUT A
-IN A
1
2
3
SGM8524
16 OUT D
15
-IND
14 +IND
13 -V
S
12 +INC
11
10
NC = NO CONNECT
-INC
OUT C
NC
9
SO-14
SO-16/TSSOP-16
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. B
ELECTRICAL CHARACTERISTICS :
V
S
= +5V
(At R
L
= 500kΩ connected to Vs/2 and V
OUT
= Vs/2, unless otherwise noted)
SGM8521/8522/8524
PARAMETER
Symbol
CONDITION
TYP
+25℃
INPUT CHARACTERISTICS
Input Offset Voltage
Input Bias Current
Input Offset Current
Common-Mode Voltage Range
Common-Mode Rejection Ratio
Open-Loop Voltage Gain
Input Offset Voltage Drift
OUTPUT CHARACTERISTICS
Output Voltage Swing from Rail
Output Current
Short-Circuit Current
POWER
SUPPLY
2.1
5.5
Power Supply Rejection Ratio
Quiescent Current / Amplifier
DYNAMIC PERFORMANCE
Gain-Bandwidth Product
Slew Rate
Settling Time to 0.1%
Overload Recovery Time
NOISE PERFORMANCE
Voltage Noise Density
e
n
f = 1kHz
f = 10kHz
40
12
nV/
nV/
Hz
Hz
MIN/MAX OVER TEMPERATURE
+25
℃
0℃ to
70℃
- 40℃ to - 40℃ to
+85℃
+125℃ UNITS
MIN/
MAX
V
OS
I
B
I
OS
V
CM
CMRR
A
OL
∆V
OS
/∆
T
V
S
= 5.5V
V
S
= 5.5V, V
CM
= -0.1V to 4 V
V
S
= 5.5V, V
CM
= -0.1V to 5.6 V
R
L
= 100KΩ ,Vo = 0.1V to 4.9V
R
L
=500KΩ ,Vo = 0.015V to 4.965V
±0.8
0.5
0.5
-0.1 to +5.6
91
83
100
104
1.7
±3.5
mV
pA
pA
V
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
72
63
84
90
dB
dB
dB
dB
µV/℃
R
L
= 500KΩ
I
OUT
I
SC
0.005
22
V
mA
mA
MAX
MIN
TYP
Operating Voltage Range
PSRR
I
Q
V
s
= +2.5 V to + 5.5 V
V
CM
=
(-V
S
) + 0.5
I
OUT
= 0
C
L
= 100pF
GBP
SR
t
S
G = +1 , 2V Output Step
G = +1, 2 V Output Step
V
IN
·Gain = Vs
150
0.04
32
91
4.7
V
V
dB
µA
MIN
MAX
MIN
MAX
KHz
V/µs
µs
µs
TYP
TYP
TYP
TYP
TYP
TYP
Specifications subject to change without notice.
２
SGM8521/8522/8524
PACKAGE/ORDERING INFORMATION
MODEL
SGM8521
ORDER NUMBER
SGM8521XN5/TR
SGM8521XS/TR
SGM8522XS/TR
SGM8522XMS/TR
SGM8524XS/TR
SGM8524
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
SGM8522
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V- . . . . . . . . . . . . . . . . . . . . . 7.5 V
Common-Mode Input Voltage
. . . . . . . . . . . . . . . . . . . . (–V
S
) – 0.5 V to (+V
S
)+0.5V
Storage Temperature Range . . . . . . . . .–65℃ to +150℃
Junction Temperature . . . . . . . . . . . . . . . .. . . . . . . .160℃
Operating Temperature Range . . . . . . –55℃ to +150℃
Package Thermal Resistance @ T
A
= 25℃
SOT23-5,
θ
JA
........................
......
................................ 190
℃
/W
SO-8,
θ
JA
.............................
.....
....................................125
℃
/W
MSOP-8,
θ
JA
..............
.....
........................................... 216
℃
/W
SO-16,
θ
JA
...................
.......
........................................... 82
℃
/W
TSSOP-16,
θ
JA
................
......
...................................... 105
℃
/W
Lead Temperature Range (Soldering 10 sec)
.....................................................
260℃
ESD Susceptibility
HBM............................................
.....
...............................4000V
MM...............................
.................
....................................400V
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.
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.
３
SGM8521/8522/8524
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V, and R
L
=500kΩ connected to Vs/2,unless otherwise noted.
Small-Signal Step Response
G = +1
R
L
= 500KΩ
C
L
= 20pF
Small-Signal Step Response
G = +1
R
L
= 500KΩ
C
L
= 100pF
50mV/div
50µs/div
50mV/div
50µs/div
Large-Signal Step Response
Small-Signal Overshoot(%)
G = +1
C
L
= 100pF
R
L
= 500KΩ
Small-Signal Overshoot vs.Load Capacitance
50
40
30
20
10
0
G=+1
R
L
=500KΩ
10
100
Load Capacitance(pF)
1000
G=-1
R
FB
=560KΩ
1V/div
100µs/div
Maximum Output Voltage vs. Frequency
6
5
Output Voltage(Vp-p)
4
3
2
V
S
= 2.5V
1
0
1
10
Frequency(kHz)
100
V
S
= 5V
Maximum Output Voltage
Without Slew-Rate
Induced Distortion
Quiescent And Short-Circuit Current
vs.Supply Voltage
6
Quiescent Current(
μ
A)
5.5
5
4.5
4
3.5
3
2
2.5
3
3.5
4
4.5
Supply Voltage(V)
5
5.5
20
17.5
Short-Circuit Current(mA)
V
S
= 5.5V
I
SC
15
12.5
I
Q
10
7.5
5
４
SGM8521/8522/8524
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V, and R
L
=500kΩ connected to Vs/2,unless otherwise noted.
Input Voltage Noise Spectral Density
vs.Frequency
CMRR And PSRR vs.Frequency
100
90
80
CMRR,PSRR(dB)
70
60
50
40
30
20
10
0
0.01
0.1
PSRR
1
10
Frequency(kHz)
100
1000
CMRR
1000
Voltage Noise(nV/
√
Hz)
100
10
0.01
0.1
1
Frequency(kHz)
10
100
Output Voltage Swing vs.Output Current
3
135℃
Output Voltage(V)
2
V
S
= 3V
1
-50℃
25℃
135℃
Sinking Current
0
0
4
8
12
16
20
Output Current(mA)
Sourcing Current
25℃
-50℃
Output Voltage(V)
4
3
2
1
5
Output Voltage Swing vs.Output Current
135℃
V
S
= 5V
-50℃
Sourcing Current
25℃
Sinking Current
-50℃
135℃
25℃
15
20
25
30
0
0
5
10
Output Current(mA)
Supply Current vs.Temperature
7
6
V
S
=5V
5
4
3
2
-45 -25
-5
15
35
55
75
95
115 135
Temperature(℃)
Supply Current(
µ
A)
５
SGM8521/8522/8524
DSP 与 ARM 处理器
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