Datasheet

ADS8343
7
SBAS183C
www.ti.com
TYPICAL CHARACTERISTICS: +5V (Cont.)
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.
WORST CASE CHANNEL-TO-CHANNEL
GAIN MATCH vs TEMPERATURE
–50 –25 0 25 50 75 100
Temperature (°C)
Gain Match (LSBs)
0.4
0.3
0.2
0.1
0
–0.1
COMMON-MODE REJECTION vs FREQUENCY
1 10 1000.1
Frequency (kHz)
CMRR (dB)
100
90
80
70
60
50
V
CM
= 2Vp-p Sinewave
Centered Around V
REF
TYPICAL CHARACTERISTICS: +2.7V
At T
A
= +25°C, +V
CC
= +2.7V, V
REF
= +1.25V, 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)
95
85
75
65
55
SNR
SINAD
SPURIOUS-FREE DYNAMIC RANGE AND
TOTAL HARMONIC DISTORTION
vs INPUT FREQUENCY
101 100
Frequency (kHz)
SFDR (dB)
100
90
80
70
60
500
THD (dB)
–100
–90
–80
–70
–60
–50
SFDR
THD
(1)
NOTE: (1) First nine harmonics of the input frequency.