Datasheet

AD7653
FREQUENCY (kHz)
THD, HARMONICS (dB)
1
–120
–100
–80
–90
–70
–50
100
02966-0-031
1000
10
–60
SFDR (dB)
120
0
100
20
40
60
80
SECOND
HARMONIC
SFDR
THIRD
HARMONIC
–110
THD
Figure 11. THD, Harmonics, and SFDR vs. Frequency
INPUT LEVEL (dB)
SNR, S/[N+D] REFERRED TO FULL SCALE (dB)
–60
82
92
02966-A-032
0–50 –40 –30 –20 –10
83
84
85
86
87
88
89
90
91
SNR
S/[N+D]
Figure 12. SNR and S/(N+D) vs. Input Level (Referred to Full Scale)
TEMPERATURE (°C)
SNR, S/[N+D] (dB)
–55
85
89
02966-0-033
125–35 –15 25 45 65
86
87
88
SNR
ENOB
S[N+D]
585
105
13.75
14.75
14.00
14.25
14.50
ENOB (Bits)
Figure 13. SNR, S/(N+D), and ENOB vs. Temperature
TEMPERATURE (°C)
THD, HARMONICS (dB)
–55
–125
–95
02966-0-034
125–35 –15 25 45 65
–115
–105
SECOND
HARMONIC
585
105
THIRD
HARMONIC
THD
Figure 14. THD and Harmonics vs. Temperature
SAMPLE RATE (SPS)
10
02966-0-036
1000000100 10000 100000
1
100
1000
10
1000
100000
0.001
0.1
0.01
OPERATING CURRENT (µA)
AVDD, WARP/NORMAL
DVDD, IMPULSE
OVDD, ALL MODES
DVDD, WARP/NORMAL
AVDD, IMPULSE
PDREF = PDBUF = HIGH
10000
Figure 15. Operating Current vs. Sample Rate
TEMPERATURE (°C)
ZERO ERROR, FULL SCALE (LSB)
–55
6
02966-0-040
125–35 5 25 45 65
2
3
5
–15
85
105
4
0
1
–1
–3
–2
–5
–4
–6
ZERO ERROR
FULL SCALE
Figure 16. Zero Error, Full Scale with Reference vs. Temperature
Rev. A | Page 13 of 28