REV. 0

Typical Performance Characteristics–AD7482

–7–

ADC – Code

0.5

0

1024

2048

4096

0.4

0.1

–0.3

–0.4

–0.5

–0.2

3072

0.3

0

0.2

–0.1

TPC 4. Typical INL

INPUT FREQUENCY – kHz

80

75

65

10

10000

100

1000

70

TPC 5. SINAD vs. Input Tone (AD8021 Input Circuit)

INPUT FREQUENCY – kHz

–40

100

1000

–70

–90

–100

–60

10000

–50

–80

100

10

0

51

200

TPC 6. THD vs. Input Tone for Different Input Resistances

FREQUENCY – kHz

0

0

200

400

600

800

1400

–20

–40

–80

–100

–120

–60

1000

1200

SNR = +72.97dB

SNR + D = +72.94dB

THD = –91.5dB

TPC 1. 64k FFT Plot With 10kHz Input Tone

FREQUENCY – kHz

0

0

200

400

600

800

1400

–20

–40

–80

–100

–120

–60

1000

1200

SNR = +72.58dB

SNR + D = +72.57dB

THD = –94.0dB

TPC 2. 64k FFT Plot With 1MHz Input Tone

ADC – Code

0.5

0

1024

2048

4096

0.4

0.1

–0.3

–0.4

–0.5

–0.2

3072

0.3

0

0.2

–0.1

TPC 3. Typical DNL