Datasheet

REV. D
AD7660
–9–
FREQUENCY – Hz
1
SNR AND S/(N+D) – dB
10 100 1k
SNR
S/(N+D)
13.0
ENOB – Bits
14.5
15.0
16.0
15.5
14.0
13.5
70
85
90
100
95
80
75
ENOB
TPC 10. SNR, S/(N+D), and ENOB
vs. Frequency
SAMPLING RATE – SPS
10M
0.1
OPERATING CURRENTS – nA
1M
100k
10k
1k
100
10
1
110100 1k 10k 100k 1M
AV DD
DVDD
OVDD
TPC 13. Operating Currents
vs. Sample Rate
C
L
– pF
0
t
12
DELAY – ns
50 100 200
0
20
30
50
40
10
150
OVDD @ 2.7V, 85C
OVDD @ 2.7V, 25C
OVDD @ 5V, 85C
OVDD @ 5V, 25C
TPC 12. Typical Delay vs. Load
Capacitance C
L
–12
–10
–8
–6
–4
–2
0
2
4
6
8
10
12
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (C)
ZERO ERROR, FULL SCALE ERROR (LSB)
FULL SCALE ERROR
ZERO ERROR
TPC 15. Zero Error, Full Scale vs.
Temperature
INPUT LEVEL – dB
–50
SNR (REFERRED TO FULL SCALE) – dB
–40 –20 0
86
90
92
88
–30 –10
TPC 11. SNR vs. Input Level
(Referred to Full Scale)
TEMPERATURE – C
–10
–40
POWER-DOWN OPERATING CURRENTS – nA
10 60 110
50
60
100
80
20
0
10
–15 35 85
30
40
70
90
DVDD
AV DD
OVDD
TPC 14. Power-Down Operating
Currents vs. Temperature