TS472 datasheet(7/20 Pages) STMICROELECTRONICS

номер детали	TS472

подробное описание детали	Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode

PDF	20 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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7 / 20 page

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

AMB

=85°C

AMB

=25°C

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

AMB

=85°C

AMB

=25°C

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

100

1000

10000

100000

-20

-10

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)

123

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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