TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, +VCC = +5V, fSAMPLE = 500kHz, fCLK = 16 • fSAMPLE, and internal +2.5V reference, unless otherwise specified.
SIGNAL-TO-NOISE and
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY
SPURIOUS FREE DYNAMIC RANGE and
TOTAL HARMONIC DISTORTION
vs INPUT FREQUENCY
75
73
71
69
67
65
63
90
85
80
75
70
65
SNR
SFDR
SINAD
THD✻
✻ First nine harmonics
of the input frequency
1
10
100
1000
1
10
100
1000
Input Frequency (kHz)
Input Frequency (kHz)
CHANGE IN SPURIOUS FREE DYNAMIC RANGE
and TOTAL HARMONIC DISTORTION
vs TEMPERATURE
CHANGE IN SIGNAL-TO-NOISE and
SIGNAL-TO-(NOISE+DISTORTION)
vs TEMPERATURE
2.0
1.5
0.5
0.4
fIN = 10kHz, –0.2dB
fIN = 10kHz, –0.2dB
0.3
1.0
0.2
SNR
0.5
0.1
THD
0.0
0.0
–0.1
–0.2
–0.3
–0.4
–0.5
–0.5
–1.0
–1.5
–2.0
SINAD
SFDR
First nine harmonics
of the input frequency
–40
–20
0
20
40
60
80
100
–40
–20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
CHANGE IN BIPOLAR OFFSET ERROR
vs SAMPLE RATE
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
0
100
200
300
400
500
600
700
Sample Rate (kHz)
®
ADS7835
6
BB [ BURR-BROWN CORPORATION ]
