CS5180 datasheet(22/28 Pages) CIRRUS

tên linh kiện	CS5180

Giải thích chi tiết về linh kiện	Modulator & 8 kHz to 400 kHz 16-Bit ADC

PDF	28 Pages

Scroll/Zoom	100%

nhà sản xuất	CIRRUS [Cirrus Logic]

Trang chủ	http://www.cirrus.com

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22 / 28 page

CS5180

the single amplifier circuit of Figure 12 because the

inputs to the CS5180 are driven differentially. The

400 and 100

Ω output divider scales down the input

from the amplifier. The scaling should be opti-

mized for the application. Figure 16 illustrates the

performance of the converter when using this am-

plifier circuit.

The amplifier of Figure 17 uses three amplifiers

and can accept a ground referenced signal or a fully

differential signal. Figure 18 illustrates its perfor-

mance when driven with 57.6 kHz signal.

Figure 19 illustrates a four amplifier circuit which

gives the best performance by keeping everything

balanced. Performance is generally limited by the

amplifiers. Again, the output resistors are used to

scale down the input signal. Figures 20 and 21 il-

20 µF

Ω

10 k

Ω

+15

-15

Ω

2200 pF

100

Ω

2200 pF

400

Ω

400

Ω

AIN+

AIN-

VREFOUT

CS5180

0.1 µF

10 µF

0.1 µF

+15

0.1 µF

-15

0.1 µF

Figure 15. AC-coupled driver using two amplifiers.

Figure 16. Performance of amplifier in Figure 15

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