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SM73308 Datasheet

RRO Operational Amplifier

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SM73308
June 1, 2011
Low Offset, Low Noise, RRO Operational Amplifier
General Description
The SM73308 is a Single low noise precision operational am-
plifier intended for use in a wide range of applications. Other
important characteristics include: an extended operating tem-
perature range of −40°C to 125°C, the tiny SC70-5 package,
and low input bias current.
The extended temperature range of −40°C to 125°C allows
the SM73308 to accommodate a broad range of applications.
The SM73308 expands National Semiconductor’s Silicon
Dustamplifier portfolio offering enhancements in size,
speed, and power savings. The SM73308 is guaranteed to
operate over the voltage range of 2.7V to 5.0V and has rail-
to-rail output.
The SM73308 is designed for precision, low noise, low volt-
age, and miniature systems. This amplifier provides rail-to-rail
output swing into heavy loads. The maximum input offset is
850 μV at room temperature and the input common mode
voltage range includes ground.
The SM73308 is offered in the tiny SC70-5 package.
Features
(Unless otherwise noted, typical values at VS = 2.7V)
Renewable Energy Grade
Guaranteed 2.7V and 5V specifications
Maximum VOS
850μV (limit)
Voltage noise
f = 100 Hz
f = 10 kHz
12.5nV/Hz
7.5nV/Hz
Rail-to-Rail output swing
RL = 600Ω
RL = 2k
Open loop gain with RL = 2k
VCM
Supply current
100mV from rail
50mV from rail
100dB
0 to V+ −0.9V
550µA
Gain bandwidth product
3.5MHz
Temperature range
−40°C to 125°C
Applications
Transducer amplifier
Instrumentation amplifier
Precision current sensing
Data acquisition systems
Active filters and buffers
Sample and hold
Portable/battery powered electronics
Automotive
Connection Diagram
SC70-5
Instrumentation Amplifier
Top View
30155567
Silicon Dustis a trademark of National Semiconductor Corporation.
© 2011 National Semiconductor Corporation 301555
30155536
www.national.com


National Semiconductor Electronic Components Datasheet

SM73308 Datasheet

RRO Operational Amplifier

No Preview Available !

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2)
Machine Model
Human Body Model
Differential Input Voltage
Voltage at Input Pins
Current at Input Pins
Supply Voltage (V+–V )
Output Short Circuit to V+
Output Short Circuit to V
200V
2000V
± Supply Voltage
(V+) + 0.3V, (V) – 0.3V
±10 mA
5.75V
(Note 3)
(Note 4)
Mounting Temperture
Infrared or Convection (20 sec)
Wave Soldering Lead Temp
(10 sec)
Storage Temperature Range
Junction Temperature (Note 5)
235°C
260°C
−65°C to 150°C
150°C
Operating Ratings (Note 1)
Supply Voltage
Temperature Range
Thermal Resistance (θJA)
2.7V to 5.5V
−40°C to 125°C
440 °C/W
2.7V DC Electrical Characteristics (Note 11)
Unless otherwise specified, all limits are guaranteed for TA = 25°C. V+ = 2.7V, V = 0V, VCM = V+/2, VO = V+/2 and
RL > 1MΩ. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Condition
Min Typ Max
(Note 7) (Note 6) (Note 7)
VOS Input Offset Voltage
0.3 0.85
1.0
TCVOS
IB
Input Offset Voltage Average Drift
Input Bias Current (Note 8)
VCM = 1V
−0.45
−0.1
100
250
IOS Input Offset Current (Note 8)
IS Supply Current
0.004
550
100
900
910
CMRR
Common Mode Rejection Ratio 0.5 VCM 1.2V
74 80
72
PSSR
Power Supply Rejection Ratio
2.7V V+ 5V
82 90
76
VCM
Input Common-Mode Voltage
Range
For CMRR 50dB
0
1.8
RL = 600Ω to 1.35V,
AV
Large Signal Voltage Gain
(Note 9)
VO = 0.2V to 2.5V
RL = 2kto 1.35V,
VO = 0.2V to 2.5V
VO Output Swing
RL = 600Ω to 1.35V
VIN = ± 100mV
RL = 2kto 1.35V
VIN = ± 100mV
Sourcing, VO = 0V
IO
Output Short Circuit Current
VIN = 100mV
Sinking, VO = 2.7V
VIN = −100mV
92
80
98
86
0.11
0.14
0.05
0.06
18
11
18
11
100
100
0.084 to
2.62
0.026 to
2.68
24
22
2.59
2.56
2.65
2.64
Units
mV
µV/°C
pA
pA
µA
dB
dB
V
dB
V
mA
www.national.com
2


Part Number SM73308
Description RRO Operational Amplifier
Maker National Semiconductor
PDF Download

SM73308 Datasheet PDF





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