Datasheet

ADS807
7
SBAS072A
www.ti.com
SPECTRAL PERFORMANCE
(Sampling Frequency = 53MHz)
Frequency (MHz)
0 5.3 10.6 15.9 21.2 26.5
Magnitude (dBFS)
0
–20
–40
–60
–80
–100
f
IN
= 21MHz
SNR = 68dBFS
SFDR = 72dBFS
SWEPT POWER SFDR
Input Amplitude (dBFS)
0 –10 –20 –30 –40 –50 –60
SFDR (dBFS, dBc)
100
80
60
40
20
0
f
IN
= 10MHz
dBc
dBFS
UNDERSAMPLING
(Sampling Frequency = 27MHz)
Frequency (MHz)
0 4.5 9.0 13.5
Magnitude (dBFS)
0
–20
–40
–60
–80
–100
f
IN
= 50MHz
SNR = 65dBFS
SFDR = 73dBFS
TYPICAL CHARACTERISTICS (Cont.)
At T
A
= full specified temperature range, differential input range = 2V to 3V, sampling rate = 50MHz, and internal reference, unless otherwise noted.
DYNAMIC PERFORMANCE
vs SAMPLING FREQUENCY
(Differential Input)
Sampling Frequency (MHz)
SFDR, SNR (dB)
90
85
80
75
70
65
60
35 40 45 50 55 60
SNR (3Vp-p)
SNR (2Vp-p)
SFDR (2Vp-p)
SFDR (3Vp-p)
f
IN
= 5MHz
SINAD vs SAMPLING FREQUENCY
(Differential Input)
Sampling Frequency (MHz)
SINAD (dB)
75
70
65
60
55
35 40 45 50 55 60
3Vp-p
2Vp-p
f
IN
= 5MHz
800k
600k
400k
200k
0
OUTPUT NOISE HISTOGRAM (DC INPUT)
Counts
N – 2N – 1 N N + 1 N + 2
Code
3V Full-Scale