AD7866 datasheet(9/20 Pages) AD

9 / 20 page

REV. 0

AD7866

–9–

AVDD RIPPLE FREQUENCY – Hz

–100

10k

–90

–80

–70

–60

–50

–40

–30

–20

–10

100k

100mV p-p SINEWAVE ON AVDD

2.5V EXT REFERENCE ON VREF

TA = 25 C

VDD = 2.7V

VDD = 3.6V

TPC 4a. PSRR vs. Supply Ripple Frequency,

with Supply Decoupling

AVDD RIPPLE FREQUENCY – Hz

–100

10k

–90

–80

–70

–60

–50

–40

–30

–20

–10

100k

100mV p-p SINEWAVE ON AVDD

2.5V EXT REFERENCE ON DCAPA, DCAPB

TA = 25 C

VDD = 2.7V

VDD = 4.75V

VDD = 3.6V

TPC 4b. PSRR vs. Supply Ripple Frequency,

with Supply Decoupling

ADC – Code

1.0

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

–1.0

500

1000

1500

2000

2500

3000

3500

4000

TPC 5. DC DNL Plot

ADC – Code

1.0

0.0

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

–1.0

500

1000

1500

2000

2500

3000

3500

4000

TPC 6. DC INL Plot

INPUT FREQUENCY – Hz

–60

10k

–65

–70

–75

–80

–85

–90

100k

1000k

TA = 25 C

VDD = 4.75V

RIN = 100

RIN = 50

RIN = 10

TPC 7. THD vs. Analog Input Frequency

for Various Source Impedances

INPUT FREQUENCY – Hz

–70

10k

–72

–74

–76

–78

–80

–82

100k

1000k

TA = 25 C

–84

–86

–88

–90

VDD = VDRIVE = 2.7V

VDD = VDRIVE = 3.6V

VDD = VDRIVE = 4.75V

VDD = VDRIVE = 5.25V

TPC 8. THD vs. Analog Input Frequency

for Various Supply Voltages

AD7866 Datasheet(PDF) 9 Page - Analog Devices

AD7866 Datasheet(HTML) 9 Page - Analog Devices

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