Datasheet

-1
1
Input(NormalizedtoFull-ScaleRange)
IntegralNonlinearity(LSB)
0
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
0.2 0.4 0.6 0.8-0.2-0.4-0.6-0.8
+70 C°
+50 C°
+25 C°
0 C°
-1
1
Input(NormalizedtoFull-Scale)
IntegralNonlinearity(LSB)
0
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
0.2 0.4 0.6 0.8-0.2-0.4-0.6-0.8
PGA1
PGA2
PGA3
PGA4
PGA6
PGA8
PGA12
0
4000
Frequency(Hz)
Amplitude(dBFS)
2000
0
20
40
60
80
100
120
140
160
180
200
-
-
-
-
-
-
-
-
-
-
15001000500 2500 3000 3500
PGAGain=6
THD= 92dB
SNR=74dB
f =8kSPS
-
DR
0
250
Frequency(Hz)
Amplitude(dBFS)
200
0
20
40
60
80
100
120
140
160
180
-
-
-
-
-
-
-
-
-
15010050
PGAGain=6
THD= 96dB
SNR=96.7dB
f =500SPS
-
DR
10
1k
Frequency(Hz)
Common-ModeRejectionRatio(dB)
100
-
-
-
-
-
-
-
-
-
125
120
115
110
105
100
95
90
85
80-
PGA=1
PGA=2
PGA=3
PGA=4
PGA=6
PGA=8
PGA=12
10
1k
Frequency(Hz)
TotalHarmonicDistortion(dBc)
100
f =4kSPS
DR
-
-
-
-
-
-
-
110
105
100
95
90
85
80
75-
PGA=1
PGA=2
PGA=3
PGA=4
PGA=6
PGA=8
PGA=12
ADS1194, ADS1196
ADS1198
www.ti.com SBAS471C –APRIL 2010– REVISED NOVEMBER 2011
TYPICAL CHARACTERISTICS
All plots at T
A
= +25°C, AVDD = 3V, AVSS = 0V, DVDD = 1.8V, internal VREFP = 2.4V, VREFN = AVSS, external
clock = 2.048MHz, data rate = 500SPS, and gain = 6, unless otherwise noted.
INL vs TEMPERATURE INL vs PGA GAIN
Figure 3. Figure 4.
FFT PLOT FFT PLOT
Figure 5. Figure 6.
CMRR vs FREQUENCY THD vs FREQUENCY
Figure 7. Figure 8.
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