ADS8365 Datasheet, PDF (14/33 Pages) Burr-Brown (TI) – 16-Bit, 250kSPS, 6-Channel, Simultaneous Sampling SAR ANALOG-TO-DIGITAL CONVERTERS

ADS8365
SBAS362A – AUGUST 2006 – REVISED SEPTEMBER 2006
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, AV_DD = +5V, BV_DD = +3V, V_REF = internal +2.5V, f_CLK = 5MHz, and f_SAMPLE = 250kSPS, unless otherwise noted.
FREQUENCY SPECTRUM
(16384 point FFT, f_IN = 10kHz, –0.2dB)
0
-20
-40
-60
-80
-100
-120
-140
-160
0
25
50
75
100
125
Frequency (kHz)
Figure 9.
FREQUENCY SPECTRUM
(16384 point FFT, f_IN = 45kHz, –0.2dB)
0
-20
-40
-60
-80
-100
-120
-140
-160
0
25
50
75
100
125
Frequency (kHz)
Figure 10.
SIGNAL-TO-NOISE RATIO AND
SIGNAL-TO-NOISE + DISTORTION
vs INPUT FREQUENCY (ALL CHANNELS)
100
95
90
SNR
85
SINAD
80
75
70
1
10
100
Frequency (kHz)
Figure 11.
SPURIOUS-FREE DYNAMIC RANGE AND
TOTAL HARMONIC DISTORTION
vs INPUT FREQUENCY (ALL CHANNELS)
120
115
110
SFDR
105
THD
100
95
90
85
80
1
10
100
Frequency (kHz)
Figure 12.
SIGNAL-TO-NOISE RATIO AND
SIGNAL-TO-NOISE + DISTORTION
vs TEMPERATURE (ALL CHANNELS)
90.0
89.5
89.0
88.5
88.0
87.5
SNR
87.0
86.5
SINAD
86.0
85.5
85.0
-50
-25
0
25
50
75
100
Temperature (°C)
Figure 13.
SPURIOUS-FREE DYNAMIC RANGE AND
TOTAL HARMONIC DISTORTION
vs TEMPERATURE (ALL CHANNELS)
107
105
SFDR
103
101
THD
99
97
95
-50
-25
0
25
50
Temperature (°C)
75
100
Figure 14.
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