SGM8531/2/4
500kHz, 18μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
PRODUCT DESCRIPTION
The SGM8531 (single), SGM8532 (dual) and SGM8534
(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. All are
specified over the extended -40℃ to +125℃ temperature
range.
The SGM8531/2/4 provide 500kHz bandwidth at a low
current consumption of 18μA per amplifier. Very low input
bias currents of 0.5pA enable the SGM8531/2/4 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 SGM8531 single is available in the Green SOT-23-5
and SOIC-8 packages. The SGM8532 dual comes in
Green SOIC-8 and MSOP-8 packages. The SGM8534
quad is offered in Green SOIC-14 and TSSOP-14
packages.
FEATURES
Low Cost
Rail-to-Rail Input and Output
0.8mV Typical V
OS
Unity Gain Stable
Gain-Bandwidth Product: 500kHz
Very Low Input Bias Current: 0.5pA
Supply Voltage Range: 2.1V to 5.5V
Input Voltage Range:
-0.1V to +5.6V with V
S
= 5.5V
Low Supply Current: 18μA/Amplifier
Small Packaging
SGM8531 Available in SOIC-8 and SOT-23-5
SGM8532 Available in SOIC-8 and MSOP-8
SGM8534 Available in SOIC-14 and TSSOP-14
PIN CONFIGURATIONS
(TOP VIEW)
SGM8531
NC
-IN
+IN
-V
S
1
2
3
4
NC = NO CONNECT
SGM8531
8
NC
OUT
1
5 +V
S
7 +V
S
6
5
OUT
-V
S
2
+IN 3
4 -IN
NC
APPLICATIONS
ASIC Input or Output Amplifier
Sensor Interface
Piezoelectric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable Systems
Smoke Detectors
Mobile Telephone
Notebook PC
PCMCIA Cards
Battery-Powered Equipment
SOT-23-5
SOIC-8
OUTA 1
8 +V
S
7 OUTB
+V
S
4
+INA 3
-V
S
4
6 -INB
5 +INB
+INB 5
-INB 6
OUTB 7
-INA 2
+INA 3
-INA 2
SGM8534
14 OUTD
13 -IND
12 +IND
11 -V
S
10 +INC
9 -INC
8 OUTC
SGM8532
OUTA 1
SOIC-8/MSOP-8
SOIC-14/TSSOP-14
SG Micro Corp
www.sg-micro.com
REV. C. 4
SGM8531/2/4
PACKAGE/ORDERING INFORMATION
MODEL
SGM8531
SGM8532
SGM8534
ORDER NUMBER
SGM8531XN5/TR
SGM8531XS/TR
SGM8532XS/TR
SGM8532XMS/TR
SGM8534XS14/TR
SGM8534XTS14/TR
PACKAGE
DESCRIPTION
SOT-23-5
SOIC-8
SOIC-8
MSOP-8
SOIC-14
TSSOP-14
500kHz, 18μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
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
8531
SGM8531XS
SGM8532XS
SGM8532XMS
SGM8534XS14
SGM8534XTS14
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +V
S
to -V
S
.....................................................6V
Common Mode Input Voltage.......... (-V
S
) - 0.3V to (+V
S
) + 0.3V
Storage Temperature Range............................. -65℃ to +150℃
Junction Temperature ........................................................150℃
Operating Temperature Range ......................... -40℃ to +125℃
Package Thermal Resistance @ T
A
= +25℃
SOT-23-5,
θ
JA
................................................................ 190℃/W
SOIC-8,
θ
JA
....................................................................125℃/W
MSOP-8,
θ
JA
................................................................. 216℃/W
Lead Temperature (Soldering 10sec)…………….…..........260℃
ESD Susceptibility
HBM………………............................................................4000V
MM………………….............................................................400V
NOTE:
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections
of the specifications 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 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.
SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at
any time. Please contact SGMICRO sales office to get the latest datasheet.
SG Micro Corp
www.sg-micro.com
2
SGM8531/2/4
500kHz, 18μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
ELECTRICAL CHARACTERISTICS
(At V
S
= +5V, R
L
= 200kΩ connected to V
S
/2 and V
OUT
= V
S
/2, unless otherwise noted.)
SGM8531/2/4
PARAMETER
SYMBOL
CONDITIONS
TYP
+25℃
INPUT CHARACTERISTICS
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Common Mode Voltage
Range
Common Mode Rejection Ratio
V
OS
I
B
I
OS
V
CM
CMRR
V
S
= 5.5V
V
S
= 5.5V, V
CM
= -0.1V to +4V
V
S
= 5.5V, V
CM
= -0.1V to +5.6V
Open-Loop Voltage Gain
Input Offset Voltage Drift
OUTPUT CHARACTERISTICS
V
OH
Output Voltage Swing
V
OL
V
OH
V
OL
Output Current
POWER SUPPLY
Operating Voltage Range
Power Supply Rejection Ratio
Quiescent Current/Amplifier
PSRR
I
Q
V
S
= +2.5V to +5.5V, V
CM
= +0.5V
85
18
2.1
5.5
70
33
2.5
5.5
66
39
V
V
dB
μA
MIN
MAX
MIN
MAX
I
SOURCE
I
SINK
R
L
= 100kΩ
R
L
= 100kΩ
R
L
= 10kΩ
R
L
= 10kΩ
R
L
= 10Ω to V
S
/2
4.997
3
4.994
6
85
76
4.980
20
4.970
30
60
60
4.970
30
4.960
40
45
45
V
mV
V
mV
mA
MIN
MAX
MIN
MAX
MIN
A
OL
ΔV
OS
/Δ
T
R
L
= 5kΩ, V
O
= +0.1V to +4.9V
R
L
= 100kΩ, V
O
= +0.035V to +4.965V
V
CM
= V
S
/2
0.8
0.5
0.5
-0.1 to +5.6
88
75
104
110
1.7
71
60
86
90
68
57
81
86
μV/℃
TYP
dB
MIN
3.5
5.4
mV
pA
pA
V
dB
MAX
TYP
TYP
TYP
MIN
+25℃
MIN/MAX OVER TEMPERATURE
-40℃ to +125℃
UNITS
MIN/MAX
DYNAMIC PERFORMANCE
(C
L
= 100pF)
Gain-Bandwidth Product
Slew Rate
Settling Time to 0.1%
Overload Recovery Time
NOISE PERFORMANCE
Voltage Noise Density
e
n
f = 1kHz
f = 10kHz
33
20
nV/
nV/
Hz
Hz
GBP
SR
t
S
G = +1, 2V Output Step
G = +1, 2V Output Step
V
IN
·Gain = V
S
500
0.2
18
16
kHz
V/μs
μs
μs
TYP
TYP
TYP
TYP
TYP
TYP
SG Micro Corp
www.sg-micro.com
3
SGM8531/2/4
500kHz, 18μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V and R
L
= 200kΩ connected to V
S
/2, unless otherwise noted.
Small Signal Step Response
G = +1
C
L
= 100pF
R
L
= 5kΩ
Small Signal Step Response
G = +1
C
L
= 100pF
R
L
= 200kΩ
20mV/div
10μs/div
50mV/div
10μs/div
Large Signal Step Response
G = +1
C
L
= 100pF
R
L
= 200kΩ
Small-Signal Overshoot vs. Load Capacitance
60
Small-Signal Overshoot (%)
50
40
30
20
10
0
10
G = -1
R
FB
= 5kΩ
100
1000
Load Capacitance (pF)
10000
G = +1
R
L
= 200kΩ
G = -1
R
FB
= 100kΩ
500mV/div
20μs/div
Small-Signal Overshoot vs. Load Capacitance
60
Small-Signal Overshoot (%)
50
40
30
20
10
0
10
100
1000
Load Capacitance (pF)
10000
G = -5
R
FB
= 100kΩ
6
5
Output Voltage (V
p-p
)
4
3
2
1
0
1
Maximum Output Voltage vs. Frequency
Maximum Output Voltage
without Slew-Rate
Induced Distortion
V
S
= 5.5V
V
S
= 5V
V
S
= 2.5V
10
100
Frequency (kHz)
1000
SG Micro Corp
www.sg-micro.com
4
SGM8531/2/4
500kHz, 18μA, Rail-to-Rail I/O
CMOS Operational Amplifiers
TYPICAL PERFORMANCE CHARACTERISTICS
At T
A
= +25℃, V
S
= +5V and R
L
= 200kΩ connected to V
S
/2, unless otherwise noted.
Supply Current vs. Temperature
30
25
Supply Current (μA)
0
1
2
3
4
Supply Voltage (V)
5
6
Short-Circuit Current vs. Supply Voltage
120
Short-Circuit Current (mA)
100
80
60
40
20
0
-20
20
15
10
5
0
-50
-25
0
25
50
75
100 125 150
Temperature (℃)
CMRR and PSRR vs. Frequency
100
90
80
70
60
50
40
30
20
10
0
0.01
PSRR
CMRR
1000
Voltage Noise (nV/√Hz)
Input Voltage Noise Spectral Density
vs. Frequency
100
10
0.01
0.1
1
Frequency (kHz)
10
100
CMRR,PSRR (dB)
0.1
1
10
100
Frequency (kHz)
1000
10000
Output Voltage Swing vs. Output Current
3.5
3
Output Voltage (V)
2.5
2
1.5
1
0.5
0
0
10
135℃
-55℃
25℃ Sinking Current
50
60
V
S
= 3V
135℃
Output Voltage Swing vs. Output Current
6
Sourcing Current
5
Output Voltage (V)
4
3
2
1
0
0
20
40
135℃
-55℃
25℃ Sinking Current
V
S
= 5V
135℃
25℃
-55℃
Sourcing Current
25℃
-55℃
20
30
40
Output Current (mA)
60
80 100 120 140 160
Output Current (mA)
SG Micro Corp
www.sg-micro.com
5
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