Datasheet

110
105
100
95
90
85
80
75
70
10
1k
Frequency(Hz)
Power-SupplyRejectionRatio(dB)
100
DataRate=4kSPS
Gain=2
Gain=4
Gain=1
Gain=12
Gain=3
Gain=8
Gain=6
-105
100
95
90
85
80
75
70
-
-
-
-
-
-
-
10
1k
Frequency(Hz)
TotalHarmonicDistortion(dB)
100
DataRate=4kSPS
AIN=0.5dBFS
Gain=1
Gain=2
Gain=4
Gain=12
Gain=3
Gain=8
Gain=6
8
6
4
2
0
2
4
6
8
-
-
-
-
-1
1
InputRange(NormalizedtoFull-Scale)
IntegralNonlinearity(ppm)
-0.5
0.50
-40 C°
-20 C°
0 C°
+25 C°
+40 C°
+60 C°
+70 C°
+85 C°
10
8
6
4
2
0
2
4
6
8
10
-
-
-
-
-
Input(NormalizedtoFull-Scale)
IntegralNonlinearity(ppm)
-0.8-1.0 1.0-0.2 0.2 0.6-0.6 0.8-0.4 0 0.4
Gain=6
Gain=8
Gain=12
Gain=1
Gain=2
Gain=3
Gain=4
0
20
40
60
80
100
120
140
160
180
-
-
-
-
-
-
-
-
-
Frequency(Hz)
Amplitude(dBFS)
500 250100 150 200
PGAGain=1
THD= 102dB
SNR=115dB
f =500SPS
f =ExternalClock
-
DR
CLK
0
20
40
60
80
100
120
140
160
180
-
-
-
-
-
-
-
-
-
Frequency(kHz)
Amplitude(dBFS)
20 164 6 8
PGAGain=6
THD= 104dB
SNR=74.5dB
-
f =32kSPS
DR
10 12 14
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
www.ti.com SBAS459I –JANUARY 2010–REVISED JANUARY 2012
TYPICAL CHARACTERISTICS (continued)
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, High-Resolution mode, and gain = 6, unless otherwise noted.
PSRR vs FREQUENCY THD vs FREQUENCY
Figure 9. Figure 10.
INL vs PGA GAIN INL vs TEMPERATURE
Figure 11. Figure 12.
THD FFT PLOT FFT PLOT
(60Hz Signal) (60Hz Signal)
Figure 13. Figure 14.
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