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SGM8941 Datasheet PDF - Shengbang Microelectronics

Part Number SGM8941
Description Rail-to-Rail Input and Output OperationalAmplifiers
Manufacturers Shengbang Microelectronics 
Logo Shengbang Microelectronics Logo 

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SGM8941 datasheet, circuit
SGM8941/2
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
PRODUCT DESCRIPTION
The SGM8941 and SGM8942 are high-performance
CMOS operational amplifiers optimized for low supply
operation. These amplifiers are designed to operate on
single supplies from 1.8V to 5.5V. Applications include
sensor amplification and signal conditioning in
battery-powered systems.
The SGM8941 and SGM8942 offer excellent CMRR
without the crossover distortion associated with
traditional complimentary input stages. This results in
excellent linearity performance. The input common
mode range includes both the negative and positive
supplies.
The SGM8941/2 provide excellent overall performance.
They exhibit low noise and offset, making these devices
an excellent choice for high quality, low voltage or
battery powered systems.
The SGM8941 single is available in Green SOT-23-5
and SOIC-8 packages. The SGM8942 dual is available
in Green SOIC-8 and MSOP-8 packages. They are
specified over the extended -40to +85temperature
range.
FEATURES
Rail-to-Rail Input and Output
Low Noise: 38nV/ Hz
Supply Voltage Range: 1.8V to 5.5V
Low Input Offset Voltage: 0.15mV (TYP)
Gain-Bandwidth Product: 1.5MHz
Slew Rate: 0.8V/μs
Low Supply Current: 120μA/Amplifier (TYP)
Small Packaging:
SGM8941 Available in SOT-23-5 and SOIC-8 Packages
SGM8942 Available in MSOP-8 and SOIC-8 Packages
APPLICATIONS
Data Acquisition
Process Control
Active Filters
Test Equipment
Mobile Phone
Audio Processing
Video Processing
Headphone Amplifier
Portable Equipment
Broadband Communications
SG Micro Corp
www.sg-micro.com
REV. A

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SGM8941 equivalent
SGM8941/2
1.5MHz, Rail-to-Rail Input and
Output Operational Amplifiers
ELECTRICAL CHARACTERISTICS: VS = +1.8V
(At TA = +25, VOUT = VS/2, unless otherwise noted.)
PARAMETER
DC PERFORMANCE
Input Offset Voltage (VOS)
Input Bias Current (IB)
Input Offset Current (IOS)
Input Offset Voltage Drift
Open-Loop Voltage Gain (AOL)
INPUT CHARACTERISTICS
Input Common Mode Voltage Range (VCM)
Common Mode Rejection Ratio (CMRR)
OUTPUT CHARACTERISTICS
Output Voltage Swing from Rail
Output Short-Circuit Current (ISC)
POWER SUPPLY
Quiescent Current (per Amplifier)
DYNAMIC PERFORMANCE (1)
Gain-Bandwidth Product (GBP)
Slew Rate (SR)
Crosstalk
Settling Time to 0.1% (tS)
Overload Recovery Time
NOISE/DISTORTION PERFORMANCE
Input Voltage Noise (en)
CONDITIONS
VCM = VS/2
-40℃ ≤ TA +85
VCM = VS/2
RL = 2k, VOUT = 0.2V to 1.6V
-40℃ ≤ TA +85
RL = 10k, VOUT = 0.1V to 1.7V
-40℃ ≤ TA +85
VCM = -0.1V to 1.9V
-40℃ ≤ TA +85
RL = 2k
-40℃ ≤ TA +85
RL = 10k
-40℃ ≤ TA +85
RL = 10to VS/2
-40℃ ≤ TA +85
IOUT = 0mA
-40℃ ≤ TA +85
CL = 100pF, RL = 2k
VOUT = 1VPP, AV = 1
f = 1kHz
VOUT = 200mVPP, f = 1kHz, AV = 1,
CL = 100pF, RL = 2k
RL = 2k, AV = -50
f = 1kHz
MIN TYP MAX UNITS
0.22
0.9
1.55
mV
3 pA
3 pA
3.4 µV/
76 88
73
83 105
dB
80
-0.1 1.9 V
69 85
66
dB
42 62
mV
72
9 25
mV
45
2.0 5.0
1.1
mA
105 168
200
μA
1.4 MHz
0.8 V/μs
110 dB
2 μs
2.5 μs
36 nV/ Ηz
NOTE 1: Correct power supply bypassing is very important for optimizing SGM8941/2 performance. A 0.1µF and a 10µF capacitors
are always used to bypass VS pin of SGM8941/2. Please place these two capacitors as close to the SGM8941/2 VS pin as possible. A
large ground plane is also needed to ensure optimum performance.
SG Micro Corp
www.sg-micro.com
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Information Total 12 Pages
Download[ SGM8941.PDF Datasheet ]

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