AD5693 datasheet(15/26 Pages) AD

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Data Sheet

AD5693R/AD5692R/AD5691R/AD5693

Rev. D | Page 15 of 26

2.5

5.5

4.5

3.5

VDD (V)

2.49980

2.49985

2.49990

2.49995

2.50000

2.50005

2.50010

2.50015

D11

D12

D13

TA = 25°C

Figure 27. Internal Reference Voltage vs. VDD

CH1 10µV

M1.00s

A CH1

2.00µV

TA = 25°C

VDD = 5V

Figure 28. Internal Reference Noise, 0.1 Hz to 10 Hz

CH1 10µV

M1.00s

A CH1

2.00µV

TA = 25°C

VDD = 5V

Figure 29. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference On

–0.005

–0.003

–0.001

0.001

0.003

0.005

LOAD CURRENT (A)

2.5003

2.5004

2.5005

2.5006

2.5007

2.5008

2.5009

5.5V

5.0V

3.0V

2.7V

TA = 25°C

Figure 30. Internal Reference Voltage vs. Load Current

100

10k

100k

FREQUENCY (Hz)

200

400

600

800

1000

1200

1400

1600

1800

VDD = 5V

TA = 25°C

Figure 31. Internal Reference Noise Spectral Density vs. Frequency

CH1 10µV

M1.00s

A CH1

2.00µV

TA = 25°C

VDD = 5V

Figure 32. 0.1 Hz to 10 Hz Output Noise Plot, External Reference

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