Datasheet

AD7621
Rev. 0 | Page 14 of 32
04565-017
INPUT LEVEL (dB)
SNR, SINAD REFERRED TO FULL-SCALE (dB)
89.5
91.0
90.5
90.0
–60 –50 –40 –30 –20 –10
SNR
SINAD
0
Figure 17. SNR and SINAD vs. Input Level (Referred to Full Scale)
04565-019
TEMPERATURE ( ° C)
DVDD, OVDD (
μ
A)
AVDD (
μ
A)
0
16
14
12
10
8
6
4
2
200
280
270
260
250
240
230
220
210
–55 –35 –15 5 25 45 65 85 105 125
AVDD
DVDD
OVDD, 3.3V
OVDD, 2.5V
Figure 18. Power-Down Operating Currents vs. Temperature
04565-020
SAMPLING RATE (SPS)
OPERATING CURRENTS (μA)
0.1
100k
10k
1k
100
10
1
10 100 1k 10k 100M 1M 10M
AVDD, WARP/NORMAL
AVDD, IMPULSE
DVDD, ALL MODES
OVDD, 2.5V, ALL MODES
PDREF = PDBUF = HIGH
OVDD = 3.3V, ALL MODES
Figure 19. Operating Current vs. Sample Rate
04565-022
C
L
(pF)
t
12
DELAY (ns)
4
6
8
10
12
14
16
18
20
0 50 100 150 200
OVDD = 2.5V @ 85°C
OVDD = 2.5V @ 25°C
OVDD = 3.3V @ 85°C
OVDD = 3.3V @ 25°C
Figure 20. Typical Delay vs. Load Capacitance C
L