Datasheet
0
20
40
60
80
100
120
140
160
-
-
-
-
-
-
-
-
Amplitude(dBFS)
0
1 2
3
4
5 6
7
8 9 10
Frequency(kHz)
f =1kHz, 0.5dBFS
THD= 109.1dBc
65,536points
-
-
IN
0
20
40
60
80
100
120
140
160
-
-
-
-
-
-
-
-
Amplitude(dBFS)
0 50 100 150 200 250 300 325
Frequency(kHz)
f =1kHz, 0.5dBFS
THD= 109.1dBc
65,536points
-
-
IN
0
20
40
60
80
100
120
140
160
-
-
-
-
-
-
-
-
Amplitude(dBFS)
0 50 100 150 200 250 300 325
Frequency(kHz)
f =10kHz, 0.5dBFS
THD= 108.9dBc
65,536points
-
-
IN
0
20
40
60
80
100
120
140
160
-
-
-
-
-
-
-
-
Amplitude(dBFS)
0 50 100 150 200 250 300 325
Frequency(kHz)
f =10kHz, 60dBFS
SNR=45.6dBc
THD= 71.6dBc
65,536points
-
-
IN
120
115
110
105
100
95
SNR, |THD| (dBc)
10 100 1000
Frequency (kHz)
|THD|, AIN = 0.5dBFS-
SNR, AIN = 0.5dBFS-
0 5 10 15 20 25
Sampling Frequency (MHz)
125
120
115
110
105
100
95
SNR, |THD| (dBc)
f = 10kHz
IN
SNR, AIN = 0.5dBFS-
|THD|, AIN = 0.5dBFS-
ADS1672
www.ti.com
SBAS402D –JUNE 2008–REVISED JULY 2010
TYPICAL CHARACTERISTICS
All specifications are at T
A
= –40°C to +85°C, AVDD = 5V, DVDD = 3V, f
CLK
= 20MHz, V
REF
= +3V, and R
BIAS
= 7.5kΩ, unless
otherwise noted.
OUTPUT SPECTRUM OUTPUT SPECTRUM DETAIL VIEW
(1k, –0.5dBFS SIGNAL) (1k, –0.5dBFS SIGNAL)
Figure 4. Figure 5.
OUTPUT SPECTRUM OUTPUT SPECTRUM
(10k, –0.5dBFS SIGNAL) (10k, –60dBFS SIGNAL)
Figure 6. Figure 7.
SNR and |THD| SNR and |THD|
vs INPUT FREQUENCY vs SAMPLING FREQUENCY
Figure 8. Figure 9.
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Product Folder Link(s): ADS1672