Datasheet

ADS8344
5
SBAS139E
TYPICAL CHARACTERISTICS: +5V
At T
A
= +25°C, +V
CC
= +5V, V
REF
= +5V, f
SAMPLE
= 100kHz, and f
DCLK
= 24 • f
SAMPLE
= 2.4MHz, unless otherwise noted.
0
–20
–40
–60
–80
–100
–120
–140
–160
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN
= 1.001kHz, –0.2dB)
0 1020304050
Frequency (kHz)
Amplitude (dB)
0
–20
–40
–60
–80
–100
–120
–140
–160
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN
= 9.985kHz, –0.2dB)
0 1020304050
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
SINAD
SNR
SPURIOUS-FREE DYNAMIC RANGE AND TOTAL
HARMONIC DISTORTION vs INPUT FREQUENCY
101 100
Frequency (kHz)
SFDR (dB)
THD (dB)
100
90
80
70
60
–100
–90
–80
–70
–60
THD
(1)
SFDR
NOTE: (1) First Nine Harmonics
of the Input Frequency
CHANGE IN SIGNAL-TO-(NOISE+DISTORTION)
vs TEMPERATURE
–40 –25 0 20 50 75 100
Temperature (°C)
Delta from +25°C (dB)
0.2
0.0
–0.2
–0.4
–0.6
–0.8
0.4
f
IN
= 9.985kHz, –0.2dB
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