Datasheet

ADS7807
5
SBAS022D
www.ti.com
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 15 20
Amplitude (dB)
Frequency (kHz)
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 15 20
Amplitude (dB)
Frequency (kHz)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (f
IN
= 0dB)
Input Signal Frequency (Hz)
100 1k 10k 100k 1M
100
80
90
70
60
50
40
30
20
10
SINAD (dB)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY AND INPUT AMPLITUDE
Input Signal Frequency (kHz)
02468101214161820
100
80
90
70
60
50
40
30
20
10
SINAD (dB)
0dB
–20dB
–60dB
SIGNAL-TO-(NOISE + DISTORTION) vs TEMPERATURE
(f
IN
= 1kHz, 0dB; f
S
= 10kHz to 40kHz)
Temperature (°C)
–75 –50 –25 0 25 50 75 100 125 150
40kHz
100
95
90
85
80
75
SINAD (dB)
30kHz
20kHz
10kHz
AC PARAMETERS vs TEMPERATURE
(f
IN
= 1kHz, 0dB)
SFDR
THD
Temperature (°C)
–75 –50 –25 0 25 50 75 100 125 150
110
105
100
95
90
85
80
–80
–85
–90
–95
–100
–105
–110
SFDR, SINAD, and SNR (dB)
THD (dB)
SNR
SINAD