Datasheet

AD7643
Rev. 0 | Page 14 of 28
96.0
93.0
–60 0
INPUT LEVEL (dB)
SNR, SINAD REFERRED TO FULL SCALE (dB)
SINAD
SNR
06024-017
95.5
95.0
94.5
94.0
93.5
–50 –40 –30 –20 –10
Figure 17. SNR and SINAD vs. Input Level (Referred to Full Scale)
16
0
125–55
TEMPERATURE (°C)
OPERATING CURRENTS (µ
A
)
14
12
10
8
6
4
2
–35–155 25456585105
DVDD
OVDD, 3.3V
OVDD, 2.5V
AVDD
06024-018
Figure 18. Power-Down Operating Currents vs. Temperature
100k
0.01
10 10M
SAMPLING RATE (SPS)
OPERATING CURRENTS (µA)
100 1k 10k 100k 1M
0.1
1
10
100
1k
10k
AVDD
DVDD
OVDD = 3.3V
OVDD = 2.5V
PDREF = PDBUF = HIGH
06024-019
Figure 19. Operating Current vs. Sampling Rate
20
4
0
C
L
(pF)
t
12
DELAY (ns)
18
16
14
12
10
8
6
50 100 150 200
OVDD = 2.5V @ 85°C
OVDD = 3.3V @ 85°C
OVDD = 3.3V @ 25°C
OVDD = 2.5V @ 25°C
06024-020
Figure 20. Typical Delay vs. Load Capacitance C
L