EVAL-AD7401EB 查看數據表（PDF） - Analog Devices

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EVAL-AD7401EB

Isolated Sigma-Delta Modulator

Analog Devices 

8

VDD1 = VDD2 = 4.5V TO 5.25V

6

MCLKIN = 16MHz

4

MCLKIN = 10MHz

2

0

MCLKIN = 5MHz

–2

–4

–6

–8

VIN– DC INPUT (V)

Figure 18. IIN vs. VIN− DC Input

0

–20

V = V = 5V DD1

DD2 VDD1 = V DD2 = 5 V

–40

–60

–80

–100

MCLKIN = 5MHz

MCLKIN = 10MHz

MCLKIN = 16MHz

–120

0.1

1

10

100

RIPPLE FREQUENCY (kHz)

1000

Figure 19. CMRR vs. Common-Mode Ripple Frequency

AD7401

1.0

VDD1 = VDD2 = 5V

50kHz BRICK WALL FILTER

0.8

0.6

0.4

MCLKIN = 5MHz

0.2

MCLKIN = 10MHz

0

MCLKIN = 16MHz

VIN DC INPUT (V)

Figure 20. RMS Noise Voltage vs. VIN DC Input

Rev. A | Page 11 of 20

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