TLC32046CFN Datasheet, PDF (51/56 Pages) Texas Instruments – Wide-Band Analog Interface Circuit

A/D SIGNAL-TO-DISTORTION RATIO
vs
INPUT SIGNAL
100
1-kHz Input Signal
90 ^{16-kHz Conversion Rate}
TA = 25°C
80
70
Gain = 1
Gain = 4
60
50
40
30
20
10
0
– 50 – 40 – 30 – 20 – 10
0
10
Input Signal Relative to Vref – dB
Figure 5 –13
A/D GAIN TRACKING
(GAIN RELATIVE TO GAIN AT 0-dB INPUT SIGNAL)
0.5
1-kHz Input Signal
0.4 ^{16-kHz Conversion Rate}
TA = 25°C
0.3
0.2
0.1
– 0.1
– 0.2
– 0.3
– 0.4
– 0.5
– 50 – 40 – 30 – 20 – 10
0
10
Input Signal Relative to Vref – dB
Figure 5 –14
5–7