TYPICAL PERFORMANCE CURVES
At TA = +25°C, +VA = +VD = +5V, VREF = internal +2.5V and fCLK = 8MHz, fSAMPLE = 500kHz, unless otherwise noted.
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 99.9kHz, –0.5dB)
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 199.9kHz, –0.5dB)
0
–20
0
–20
–40
–40
–60
–60
–80
–80
–100
–120
–100
–120
0
62.5
125
187.5
250
0
62.5
125
187.5
250
Frequency (kHz)
Frequency (kHz)
SIGNAL-TO-NOISE RATIO AND
SIGNAL-TO-(NOISE+DISTORTION)
vs INPUT FREQUENCY
CHANGE IN SIGNAL-TO-NOISE RATIO
AND SIGNAL-TO-(NOISE+DISTORTION)
vs TEMPERATURE
76
74
72
70
68
66
64
0.25
0.2
SNR
0.15
0.1
SINAD
0.05
0
SINAD
–0.05
–0.1
–0.15
–0.2
–0.25
SNR
1k
10k
100k
1M
–40
25
85
Input Frequency (Hz)
Temperature (°C)
CHANGE IN POSITIVE GAIN MATCH
vs TEMPERATURE
(Maximum Deviation for All Four Channels)
CHANGE IN SPURIOUS FREE DYNAMIC RANGE
AND TOTAL HARMONIC DISTORTION
vs TEMPERATURE
0.65
0.45
0.65
0.6
0.5
0.4
0.3
0.2
0.1
0
0.45
SFDR
0.25
0.25
0.05
0.05
–0.15
–0.35
–0.55
–0.75
–0.15
–0.35
–0.55
–0.75
THD
–40
25
85
–40
25
85
Temperature (°C)
150
Temperature (°C)
®
ADS7862
5
BB [ BURR-BROWN CORPORATION ]
