Datasheet

ADS831
5
SBAS087A
SPECTRAL PERFORMANCE
Frequency (MHz)
010203040
f
IN
= 20MHz
SNR = 49dBFS
SFDR = 66dBFS
Magnitude (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
SPECTRAL PERFORMANCE
Frequency (MHz)
010203040
Magnitude (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
f
IN
= 10MHz
SNR = 49dBFS
SFDR = 67dBFS
SPECTRAL PERFORMANCE
Frequency (MHz)
Magnitude (dB)
010203040
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
f
IN
= 1MHz
SNR = 49dBFS
SFDR = 68dBFS
TWO-TONE INTERMODULATION DISTORTION
Fre
q
uenc
y
(
MHz
)
Magnitude (dBFSR)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
010203040
f
1
= 9.5MHz at –7dBFS
f
2
= 9.9MHz at –7dBFS
IMD(3) = –57dBc
SPECTRAL PERFORMANCE
(Single-Ended, 1Vp-p)
Fre
q
uenc
y
(
MHz
)
Magnitude (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
010203040
f
IN
= 10MHz
SNR = 49dBFS
SFDR = 66dBFS
TYPICAL CHARACTERISTICS
At T
A
= full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 80MHz, and external reference, unless otherwise noted.
DIFFERENTIAL LINEARITY ERROR
Output Code
DLE (LSB)
0.5
0.25
0
–0.25
–0.5
0 64 128 192 256
f
IN
= 10MHz