AD7625

Data Sheet

Rev. A | Page 10 of 24

–116

–114

–112

–110

–108

–106

–104

–102

–100

–98

–96

–94

0

20

40

60

80

100

120

INPUT FREQUENCY (kHz)

–0.5dBFS

–1dBFS

–3dBFS

–5dBFS

–10dBFS

Figure 9. THD at Input Amplitudes of −0.5 dBFS to −10 dBFS vs. Frequency

92.2

92.4

92.6

92.8

93.0

93.2

93.4

93.6

93.8

–60

–40

–20

0

20

40

60

80

100

120

TEMPERATURE (°C)

DYNR vs. TEMP INTERNAL REF

DYNR vs. TEMP EXTERNAL REF

SNR vs. TEMP INTERNAL REF

SNR vs. TEMP EXTERNAL REF

Figure 10. Dynamic Range and SNR vs. Temperature

(−0.5 dB, 20 kHz Input Tone)

–60

–40

–20

0

20

40

60

80

100

120

–4

–6

–2

0

2

4

6

DIFFERENTIAL INPUT VOLTAGE (V)

IN–

IN+

Figure 11. Input Current (IN+, IN−) vs. Differential Input Voltage (6 MSPS)

–103.5

–103.0

–102.5

–102.0

–101.5

–101.0

–100.5

–60

–40

–20

0

20

40

60

80

100

120

TEMPERATURE (°C)

INTERNAL REF

EXTERNAL REF

Figure 12. THD vs. Temperature (−0.5 dB, 20 kHz Input Tone)

91.6

91.8

92.0

92.2

92.4

92.6

92.8

93.0

93.2

–60

–40

–20

0

20

40

60

80

100

120

TEMPERATURE (°C)

SINAD vs. TEMP INTERNAL REF

SINAD vs. TEMP EXTERNAL REF

Figure 13. SINAD vs. Temperature

(−0.5 dB, 20 kHz Input Tone)

0

2

4

6

8

10

12

–60

–40

–20

0

20

40

60

80

100

120

TEMPERATURE (°C)

GAIN ERROR

ZERO ERROR

Figure 14. Zero Error and Gain Error vs. Temperature