TYPICAL CHARACTERISTICS
At T
A
= +25°C, f
S
= 40kHz, V
DIG
= V
ANA
= +5V, and using internal reference and fixed resistors (see Figure 7b), unless otherwise specified.
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN
= 1kHz, 0dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
5
10
Frequency (kHz)
15
20
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN
= 15kHz, 0dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
5
10
Frequency (kHz)
15
20
Amplitude (dB)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (f
IN
= 0dB)
100
90
80
SINAD (dB)
Amplitude (dB)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY AND INPUT AMPLITUDE
100
90
80
70
SINAD (dB)
60
50
40
30
20
10
0
2
4
6
8
10
12
14
16
18
20
–60dB
–20dB
0dB
70
60
50
40
30
20
10
100
1k
10k
100k
1M
Input Signal Frequency (Hz)
Input Signal Frequency (kHz)
SIGNAL-TO-(NOISE + DISTORTION) vs TEMPERATURE
(f
IN
= 1kHz, 0dB; f
S
= 10kHz to 40kHz)
100
AC PARAMETERS vs TEMPERATURE
(f
IN
= 1kHz, 0dB)
110
SFDR, SINAD, and SNR (dB)
105
100
95
SNR
90
85
SINAD
80
THD
–100
–105
–110
150
SFDR
–80
–85
–90
–95
THD (dB)
95
10kHz
SINAD (dB)
90
30kHz
20kHz
40kHz
85
80
75
–75
–50
–25
0
25
50
75
100
125
150
Temperature (°C)
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
ADS7807
SBAS022C
www.ti.com
5
BURR-BROWN [ BURR-BROWN CORPORATION ]
