AD7172-4BCPZ datasheet(13/61 Pages) AD

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Data Sheet

AD7172-4

Rev. A | Page 13 of 61

FREQUENCY (MHz)

0.000002

0.000004

0.000006

0.000008

0.000010

0.000012

0.000014

0.000016

0.000018

0.000020

1000 201000 401000 601000 80100010010001201000140100016010001801000

ANALOG INPUT BUFFERS OFF

ANALOG INPUT BUFFERS ON

Figure 17. Noise vs. External Master Clock Frequency,

Analog Input Buffers On and Off

100

10k

100k

VIN FREQUENCY (Hz)

–140

–120

–100

–80

–60

–40

–20

Figure 18. Common-Mode Rejection Ratio (CMRR) vs. VIN Frequency

(VIN = 0.1 V, Output Data Rate = 31.25 kSPS)

VIN FREQUENCY (Hz)

–180

–160

–140

–120

–100

–80

–60

–40

–20

Figure 19. Common-Mode Rejection Ratio (CMRR) vs. VIN Frequency

(VIN = 0.1 V, 10 Hz to 70 Hz, Output Data Rate = 20 SPS, Enhanced Filter)

100

10k

100k

100M

10M

VIN FREQUENCY (Hz)

–140

–130

–120

–110

–100

–90

–80

–70

–60

Figure 20. Power Supply Rejection Ratio (PSRR) vs. VIN Frequency

–5

–4

–3

–2

–1

VIN (V)

–6

–4

–2

CRYSTAL BUFFERS OFF

CRYSTAL BUFFERS ON

CLK BUFFERS OFF

CLK BUFFERS ON

2.5V REFERENCE,

ANALOG INPUT BUFFERS OFF

2.5V REFERENCE, ANALOG INPUT BUFFERS ON

5V REFERENCE, ANALOG INPUT BUFFERS OFF

5V REFERENCE, ANALOG INPUT BUFFERS ON

Figure 21. Integral Nonlinearity (INL) vs. VIN

(Differential Input)

INL (ppm)

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25

Figure 22. INL Distribution Histogram (Differential Input, All Input Buffers

Enabled, VREF = 2.5 V External, 100 Units)

AD7172-4BCPZ Datasheet(PDF) 13 Page - Analog Devices

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