TYPICAL CHARACTERISTICS
TA = +25°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference and fixed resistors shown in Figure 6b, unless otherwise specified.
FREQUENCY SPECTRUM
FREQUENCY SPECTRUM
(8192 Point FFT; fIN = 20kHz, 0dB)
(8192 Point FFT; fIN = 45kHz, 0dB)
0
–20
0
–20
–40
–40
–60
–60
–80
–80
–100
–120
–140
–100
–120
–140
0.0
12.5
25.0
37.5
50.0
0.0
12.5
25.0
37.5
50.0
Frequency (kHz)
Frequency (kHz)
SIGNAL-TO-(NOISE + DISTORTION) vs TEMPERATURE
(fIN = 20kHz, 0dB; fS = 50kHz, 100kHz)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY AND INPUT AMPLITUDE
100.0
95.0
90.0
85.0
80.0
75.0
90
80
70
60
50
40
30
20
10
0
0dB
–20dB
50kHz
100kHz
–60dB
–50
–25
0
25
50
75
100
125
150
0
5
10
15
20
25
30
35
40
45
Temperature (°C)
Input Signal Frequency (kHz)
AC PARAMETERS vs TEMPERATURE
(fIN = 20kHz, 0dB)
LINEARITY vs CODE
110
105
100
95
–80
3
2
All Codes INL
1
–85
SFDR
0
–1
–2
–3
–90
–95
THD
SNR
0
8192 16384 24576 32768 40960 49152 57344 65535
Decimal Code
90
–100
–105
–110
3
2
85
All Codes DNL
SINAD
1
80
0
–50
–25
0
25
50
75
100
125
150
–1
–2
–3
Temperature (°C)
0
8192 16384 24576 32768 40960 49152 57344 65535
Decimal Code
ADS7805
SBAS020D
5
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