TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, +V
A
= +V
D
= +5V, V
REF
= internal +2.5V and f
CLK
= 8MHz, f
SAMPLE
= 500kHz, unless otherwise noted.
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN
= 99.9kHz, –0.2dB)
0
–20
Amplitude (dB)
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN
= 199.9kHz, –0.2dB)
0
–20
–40
–60
–80
–100
–120
0
62.5
125
Frequency (kHz)
187.5
250
Amplitude (dB)
–40
–60
–80
–100
–120
0
62.5
125
Frequency (kHz)
187.5
250
SIGNAL-TO-NOISE RATIO AND
SIGNAL-TO-(NOISE+DISTORTION)
vs INPUT FREQUENCY
75
SNR
1.0
CHANGE IN SIGNAL-TO-NOISE RATIO
AND SIGNAL-TO-(NOISE+DISTORTION)
vs TEMPERATURE
SNR and SINAD (dB)
SINAD
65
Delta from +25°C (dB)
70
0.6
SNR
0.2
60
–0.2
SINAD
–0.6
55
50
1k
10k
100k
1M
Input Frequency (Hz)
–1.0
–40
–20
0
20
40
60
80
Temperature (°C)
CHANGE IN SPURIOUS FREE DYNAMIC RANGE
AND TOTAL HARMONIC DISTORTION
vs TEMPERATURE
POSITIVE GAIN MATCH vs TEMPERATURE
(Maximum Deviation for All Six Channels)
1.80
THD and SFDR Delta from +25°C (dB)
1.0
Change in Positive Gain Match (LSB)
40
60
80
THD
0.5
1.70
1.60
1.50
1.40
1.30
1.20
–40
0.0
SFDR
–0.5
–1.0
–40
–20
0
20
–20
0
20
40
60
80
Temperature (°C)
Temperature (°C)
®
5
ADS7864
BURR-BROWN [ BURR-BROWN CORPORATION ]
