TLC32040C Datasheet, PDF (29/33 Pages) Texas Instruments – ANALOG INTERFACE CIRCUITS

TLC32040C, TLC32040I, TLC32041C, TLC32041I
ANALOG INTERFACE CIRCUITS
SLAS014E – SEPTEMBER 1987 – REVISED MAY 1995
TYPICAL CHARACTERISTICS
A/D SIGNAL-TO-DISTORTION RATIO
vs
INPUT SIGNAL
80
1-kHz Input Signal With an
70 ^{8-kHz Conversion Rate}
Gain = 4X
60
Gain = 1X
50
40
30
20
10
0
– 50 – 40 – 30 – 20 – 10
0
10
Input Signal Relative to Vref – dB
Figure 8
A/D GAIN TRACKING
(GAIN RELATIVE TO GAIN
AT 0-dB INPUT SIGNAL)
0.5
1-kHz Input Signal
0.4 _{8-kHz Conversion Rate}
0.3
0.2
0.1
0
– 0.1
– 0.2
– 0.3
– 0.4
– 0.5
– 50 – 40 – 30 – 20 – 10
0
10
Input Signal Relative to Vref – dB
Figure 9
D/A CONVERTER SIGNAL-TO-DISTORTION RATIO
vs
INPUT SIGNAL
100
1-kHz Input Signal into 600 Ω
90 _{8-kHz Conversion Rate}
80
70
60
50
40
30
20
10
0
– 50 – 40 – 30 – 20 – 10
0
10
Input Signal Relative to Vref – dB
Figure 10
D/A GIAN TRACKING
vs
(GAIN RELATIVE TO GAIN
AT 0 0dB INPUT SIGNAL)
1.0
1-kHz Input Signal into 600 Ω
0.8 _{8-kHz Conversion Rate}
0.6
0.4
0.2
0
– 0.2
– 0.4
– 0.6
– 0.8
–1
– 50 – 40 – 30 – 20 – 10 0
10
Input Signal Relative to Vref – dB
Figure 11
NOTE: Test conditions are VCC _+, VCC _–, VDD and within recommended operating conditions set clock f = 288 kHz ± 2%, and TA = 25°C.
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