TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 60MHz, external reference, unless otherwise noted.
UNDERSAMPLING
(Differential Input, 2Vp-p)
0
f
IN
= 41MHz
f
S
= 56MHz
SNR = 59.8dBFS
SFDR = 78dBFS
TWO-TONE INTERMODULATION DISTORTION
0
f
1
= 9.5MHz at –7dBFS
f
2
= 9.9MHz at –7dBFS
IMD(3) = –64.4dBc
–20
–20
Magnitude (dB)
28
Magnitude (dB)
–40
–40
–60
–60
–80
–80
–100
0
7
14
Frequency (MHz)
21
–100
0
7.50
15
Frequency (MHz)
22.50
30
DIFFERENTIAL LINEARITY ERROR
1.0
f
IN
= 10MHz
0.5
0.5
1.0
DIFFERENTIAL LINEARITY ERROR
f
IN
= 20MHz
DLE (LSB)
0
DLE (LSB)
0
256
512
Output Code
768
1024
0
–0.5
–0.5
–1.0
–1.0
0
256
512
Output Code
768
1024
INTEGRAL LINEARITY ERROR
2.0
f
IN
= 1MHz
80
1.0
SFDR (dB)
SWEPT POWER SFDR
100
f
IN
= 10MHz
ILE (LSB)
60
dBFS
0
40
dBc
–1.0
20
–2.0
0
256
512
Output Code
768
1024
0
–60
–50
–40
–30
–20
–10
0
Input Amplitude (dBFS)
®
ADS823, ADS826
6
BURR-BROWN [ BURR-BROWN CORPORATION ]
