Datasheet

ADS8343
5
SBAS183C
www.ti.com
TYPICAL CHARACTERISTICS: +5V
At T
A
= +25°C, +V
CC
= +5V, V
REF
= +2.5V, f
SAMPLE
= 100kHz, and f
CLK
= 24 • f
SAMPLE
= 2.4MHz, unless otherwise noted.
0
–20
–40
–60
–80
–100
–120
–140
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN
= 1.001kHz, –0.2dB)
0502010 4030
Frequency (kHz)
Amplitude (dB)
0
–20
–40
–60
–80
–100
–120
–140
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN
= 9.985kHz, –0.2dB)
0502010 4030
Frequency (kHz)
Amplitude (dB)
SIGNAL-TO-NOISE RATIO AND
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY
101 100
Frequency (kHz)
SNR and SINAD (dB)
100
90
80
70
60
SNR
SINAD
SPURIOUS-FREE DYNAMIC RANGE AND
TOTAL HARMONIC DISTORTION
vs INPUT FREQUENCY
101 100
Frequency (kHz)
SFDR (dB)
110
100
90
80
70
60
THD (dB)
–110
–100
–90
–80
–70
–60
SFDR
THD
(1)
NOTE: (1) First nine harmonics of the input frequency.
EFFECTIVE NUMBER OF BITS
vs INPUT FREQUENCY
101 100
Frequency (kHz)
Effective Number of Bits
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
Temperature (°C)
0.1
0
–0.1
–0.2
–0.3
CHANGE IN SIGNAL-TO-(NOISE + DISTORTION)
vs TEMPERATURE
25 100–50 –25 0 50 75
Delta from 25°C (dB)
f
IN
= 4.956kHz, –0.2dB