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TS472 Fiches technique(PDF) 7 Page - STMicroelectronics

No de pièce TS472
Description  Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode
PDF  20 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS472 Fiches technique(HTML) 7 Page - STMicroelectronics

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TS472
Electrical Characteristics
7/20
Figure 2.
Current consumption vs. power
supply voltage
Figure 3.
Current consumption vs. power
supply voltage
Figure 4.
Standby threshold voltage vs.
power supply voltage
Figure 5.
Frequency response
Figure 6.
Bias output voltage vs. bias output
current
Figure 7.
Bias output voltage vs. power
supply voltage
345
0.0
0.5
1.0
1.5
2.0
2.5
3.0
T
AMB
=85°C
T
AMB
=25°C
T
AMB
=-40°C
No Loads, Minimum Gain
Power Supply Voltage (V)
5.5
2.2
345
0.0
0.5
1.0
1.5
2.0
2.5
3.0
T
AMB
=85°C
T
AMB
=25°C
T
AMB
=-40°C
No Loads, Maximum Gain
Power Supply Voltage (V)
5.5
2.2
345
0.0
0.2
0.4
0.6
0.8
1.0
No Loads
Tamb = 25°C
Power Supply Voltage (V)
2.2
5.5
10
100
1000
10000
100000
-20
-10
0
10
20
30
C1,C2=220pF
C1,C2=100pF
Cin,Cout=10nF
Cin,Cout=100nF
no C1,C2
Cb=1
µF, T
AMB
=25
°C, Gain=20dB, Rout=100kΩ
Frequency (Hz)
0
123
4
1.4
1.6
1.8
2.0
2.2
Tamb=85°C
Tamb=25°C
Bias Output Current (mA)
Tamb=-40°C
345
1.4
1.6
1.8
2.0
2.2
Ibias=4mA
Ibias=2mA
Tamb=25°C
Ibias=0mA
Power Supply Voltage (V)
2.2
5.5



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