AD7980-EP

Rev. 0 | Page 8 of 12

TYPICAL PERFORMANCE CHARACTERISTICS

1.25

–1.25

0

65536

CODE

1.00

0.75

0.50

0.25

–0.25

–0.75

0

–0.50

–1.00

16384

32768

49152

POSITIVE INL: +0.33 LSB

NEGATIVE INL: –0.39 LSB

Figure 5. Integral Nonlinearity vs. Code, REF = 5 V

1.25

1.00

–1.25

–1.00

0

65536

CODE

0.75

0.50

0.25

–0.25

–0.75

0

–0.50

16384

32768

49152

POSITIVE INL: +0.47 LSB

NEGATIVE INL: –0.26 LSB

Figure 6. Integral Nonlinearity vs. Code, REF = 2.5 V

0

–180

0

500

FREQUENCY (kHz)

–20

–40

–60

–80

–100

–120

–140

–160

100

200

300

400

SNR = 91.27dB

THD = –114.63dB

SFDR = 110.10dB

SINAD = 91.25dB

Figure 7. FFT Plot, REF = 5 V

1.00

–1.00

0

65536

CODE

0.75

0.50

0.25

–0.25

–0.75

0

–0.50

16384

32768

49152

POSITIVE INL: +0.18 LSB

NEGATIVE INL: –0.21 LSB

Figure 8. Differential Nonlinearity vs. Code, REF = 5 V

1.00

–1.00

0

65536

CODE

0.75

0.50

0.25

–0.25

–0.75

0

–0.50

16384

32768

49152

POSITIVE INL: +0.25 LSB

NEGATIVE INL: –0.22 LSB

Figure 9. Differential Nonlinearity vs. Code, REF = 2.5 V

0

–180

0

500

FREQUENCY (kHz)

–20

–40

–60

–80

–100

–120

–140

–160

100

200

300

400

SNR = 86.8dB

THD = –111.4dB

SFDR = 105.9dB

SINAD = 86.8dB

Figure 10. FFT Plot, REF = 2.5 V