AD7699BCPZ datasheet(8/28 Pages) AD

8 / 28 page

AD7699

Rev. 0 | Page 8 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

VDD = 5V, VREF = 5V, VIO = VDD, unless otherwise noted

1.5

1.0

0.5

–0.5

–1.0

–1.5

16,384

32,768

49,152

65,536

CODES

Figure 5. Integral Nonlinearity vs. Code

250,000

200,000

150,000

100,000

50,000

13,341

26,926

7FF9 7FFA 7FFB 7FFC 7FFD 7FFE

7FFF

8000

8001

CODE IN HEX

σ = 0.51 LSB

VREF = 5V

220,840

Figure 6. Histogram of a DC Input at Code Center

–20

–40

–60

–80

–100

–120

–140

–160

–180

100

125

150

175

200

225

250

FREQUENCY (kHz)

VREF = 5V

fS = 500kSPS

fIN = 19.94kHz

SNR = 92.3dB

SINAD = 91.5dB

THD = –98dB

SFDR = 100dB

SECOND HARMONIC = –111dB

THIRD HARMONIC = –101dB

Figure 7. 20 kHz FFT, VREF = 5 V

1.5

1.0

0.5

–0.5

–1.0

16,384

32,768

49,152

65,536

CODES

Figure 8. Differential Nonlinearity vs. Code

250,000

200,000

150,000

100,000

50,000

119

31,411

157

σ = 0.78 LSB

VREF = 4.096V

191,013

38,420

7FF9 7FFA 7FFB 7FFC 7FFD 7FFE

7FFF

8000

8001

CODE IN HEX

Figure 9. Histogram of a DC Input at Code Center

–20

–40

–60

–80

–100

–120

–140

–160

–180

100

125

150

175

200

225

250

FREQUENCY (kHz)

VREF = 4.096V

fS = 500kSPS

fIN = 19.94kHz

SNR = 91.1dB

SINAD = 90.4dB

THD = –98dB

SFDR = 100dB

SECOND HARMONIC = –104dB

THIRD HARMONIC = –101dB

Figure 10. 20 kHz FFT, VREF = 4.096 V

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