SGM8541
SGM8542
SGM8544
PRODUCT DESCRIPTION
The SGM8541 (single)
，
SGM8542 (dual) and SGM8544
(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 SGM8541/8542/8544 provide 1.1MHz bandwidth at
a low current consumption of 42µA per amplifier. Very
low input bias currents of 0.5pA, enable SGM8541/8542
/8544 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 this 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 SGM8541 is available in the tiny SOT23-5 and SO-8
packages. The SGM8542 comes in the miniature SO-8
and MSOP-8 packages. The SGM8544 is offered in
TSSOP-16 and SO-16 packages.
1.1MHz, 42µA, 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: : 1.1MHz
•
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
= 5.5 V
•
Low Supply Current: 42µA/Amplifier
•
Small Packaging
SGM8541 Available in SO-8 and SOT23-5
SGM8542 Available in SO-8 and MSOP-8
SGM8544 Available in SO-16 and TSSOP-16
PIN CONFIGURATIONS
(Top View)
SGM8541
NC
-IN
+IN
-V
S
1
2
3
4
8
7
6
5
NC
+V
S
OUT
NC
OUT
-V
S
1
2
SGM8541
5
+V
S
+IN 3
4
-IN
SOT23-5
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
SO-8
NC = NO CONNECT
OUT A
-IN A
OUTA
-INA
+INA
1
2
3
8
7
6
+V
S
OUT B
-INB
+IN A
+V
S
+INB
-INB
OUT B
NC
1
2
3
4
5
6
7
8
SGM8544
16 OUT D
15 -IND
14 +IND
13 -V
S
12 +INC
11
10
NC = NO CONNECT
SGM8542
-V
S
4
5 +INB
-INC
OUT C
NC
SO-8 / MSOP-8
9
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
= 100kΩ connected to Vs/2,and V
OUT
= Vs/2, unless otherwise noted)
SGM8541/8542/8544
PARAMETER
CONDITION
TYP
+25℃
INPUT CHARACTERISTICS
Input Offset Voltage (V
OS
)
Input Bias Current (I
B
)
Input Offset Current (I
OS
)
Common-Mode Voltage Range (V
CM
)
Common-Mode Rejection Ratio(CMRR)
Open-Loop Voltage Gain( A
OL
)
Input Offset Voltage Drift (∆V
OS
/∆
T
)
OUTPUT CHARACTERISTICS
Output Voltage Swing from Rail
Output Current (I
OUT
)
POWER
SUPPLY
2.1
5.5
Power Supply Rejection Ratio (PSRR)
Quiescent Current / Amplifier (I
Q
)
DYNAMIC PERFORMANCE
Gain-Bandwidth Product (GBP)
Slew Rate (SR)
Settling Time to 0.1%( t
S
)
Overload Recovery Time
NOISE PERFORMANCE
Voltage Noise Density (e
n
)
f = 1kHz
f = 10kHz
27
20
nV/
nV/
Hz
Hz
MIN/MAX OVER TEMPERATURE
+25℃
0℃
to70℃
-40℃
to 85℃
-40℃
to125℃
UNITS
MIN/
MAX
±0.8
0.5
0.5
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
= 5KΩ ,Vo = 0.1V to 4.9V
R
L
=100KΩ ,Vo = 0.035V to 4.965V
- 0.1 to + 5.6
88
78
90
94
2.7
±3.5
±3.7
±4.1
±5.4
mV
pA
pA
V
MAX
TYP
TYP
TYP
MIN
MIN
MIN
MIN
TYP
72
60
80
85
72
59
80
85
72
59
80
85
72
57
78
82
dB
dB
dB
dB
µV/℃
R
L
= 100KΩ
0.008
23
20
19.1
18.8
18
V
mA
TYP
MIN
Operating Voltage Range
V
s
= +2.5 V to + 5.5 V
V
CM
=
(-V
S
) + 0.5
I
OUT
= 0
C
L
= 100pF
1.1
G = +1 , 2V Output Step
G = +1, 2 V Output Step
V
IN
·Gain = Vs
0.52
5.3
2.6
92
42
2.5
5.5
74
59
2.5
5.5
71
60
2.5
5.5
70
64
V
V
dB
µA
MIN
MAX
MIN
MAX
76
54
MHz
V/µs
µs
µs
TYP
TYP
TYP
TYP
TYP
TYP
Specifications subject to change without notice.
２
SGM8541/8542/8544
PACKAGE/ORDERING INFORMATION
MODEL
SGM8541
ORDER NUMBER
SGM8541XN5/TR
SGM8541XS/TR
SGM8542XS/TR
SGM8542XMS/TR
SGM8544XS/TR
SGM8544XTS
PACKAGE
DESCRIPTION
SOT23-5
SO-8
SO-8
MSOP-8
SO-16
TSSOP-16
PACKAGE
OPTION
Tape and Reel, 3000
Tape and Reel, 2500
Tape and Reel, 2500
Tape and Reel, 3000
Tape and Reel, 2500
Tape and Reel, 3000
MARKING
INFORMATION
8541
SGM8541XS
SGM8542XS
SGM8542XMS
SGM8544XS
SGM8544XTS
SGM8542
SGM8544
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
..........
.....
.................
.....
..........
150℃
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
SGM8541/8542/8544
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V, and R
L
= 100kΩ connected to Vs/2,unless otherwise noted.
Small-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100KΩ
Large-Signal Step Response
G = +1
C
L
= 100pF
R
L
= 100KΩ
20mV/div
500mV/div
2µs/div
10µs/div
Small-Signal Overshoot vs.Load Capacitance
Small-Signal Overshoot vs.Load Capacitance
60
Small-Signal Overshoot(%)
50
40
30
20
10
0
G = +1
R
L
= 100KΩ
G = -1
R
FB
= 5KΩ
G = -1
R
FB
= 100KΩ
60
Small-Signal Overshoot(%)
50
40
30
20
10
0
10
100
1000
Load Capacitance(pF)
10000
G = -5
R
FB
= 100KΩ
10
100
1000
Load Capacitance(pF)
10000
Maximum Output Voltage vs.Frequency
6
5
Output Voltage(Vp-p)
V
S
= 5V
4
3
2
1
0
1
10
100
1000
Frequency(kHz)
10000
V
S
= 2.5V
Maximum Output Voltage
Without Slew-Rate
Induced Distortion
50
Quiescent And Short-Circuit Current
vs.Supply Voltage
30
25
Short-Circuit Current(mA)
V
S
= 5.5V
Quiescent Current(
μ
A)
45
40
35
30
25
2
2.5
3
3.5
4
4.5
Supply Voltage(V)
5
5.5
I
Q
I
SC
20
15
10
5
４
SGM8541/8542/8544
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V, and R
L
= 100kΩ 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
1
10
100
Frequency(kHz)
1000
10000
PSRR
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
-50℃
Output Voltage(V)
25℃
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
60
55
50
45
40
35
30
-50 -30 -10
10 30 50 70
Temperature(℃)
90
110 130
V
S
= 2.5V
Open-Loop Gain vs.Temperature
120
110
Open–Loop Gain(dB)
R
L
= 5kΩ
R
L
= 100kΩ
Supply Current(
μ
A)
V
S
= 5V
V
S
= 3V
100
90
80
70
60
-50 -30 -10
10 30 50 70
Temperature(℃)
90
110 130
５
SGM8541/8542/8544
嵌入式系统
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