Datasheet

0
100
200
300
400
500
600
700
800
900
1 2 3 4 5 6 7 8 9 10 11 12
PGA Gain
Offset Drift (nV/°C)
AVDD = 3 V
AVDD = 5 V
G013
0
4
8
12
16
20
24
28
32
0 1 2 3 4 5 6 7 8
Number of Channels Disabled
Power (mW)
AVDD = 3 V
AVDD = 5 V
G014
−180
−160
−140
−120
−100
−80
−60
−40
−20
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Frequency (kHz)
Amplitude (dBFS)
PGA Gain = 1
THD = −96 dB
SNR = 74 dB
Data Rate = 64 kSPS
G011
0
100
200
300
400
500
600
1 2 3 4 5 6 7 8 9 10 11 12
PGA Gain
Offset (µV)
AVDD = 3 V
AVDD = 5 V
G012
−24
−16
−8
0
8
16
24
−1 −0.8 −0.6 −0.4 −0.2 0 0.2 0.4 0.6 0.8 1
Input (Normalized to Full−Scale)
Integral Nonlinearity (ppm)
−40°C
+105°C
+25°C
G009
−180
−160
−140
−120
−100
−80
−60
−40
−20
0
0 100 200 300 400 500
Frequency (Hz)
Amplitude (dBFS)
PGA Gain = 1
THD = −97 dB
SNR = 117 dB
Data Rate = 1 kSPS
G010
ADS131E04
ADS131E06
ADS131E08
SBAS561A –JUNE 2012–REVISED APRIL 2013 www.ti.com
TYPICAL CHARACTERISTICS (continued)
All plots are at T
A
= +25°C, AVDD = 3 V, AVSS = 0 V, DVDD = 1.8 V, internal VREFP = 2.4 V, VREFN = AVSS, external
clock = 2.048 MHz, data rate = 8 kSPS, and gain = 1, unless otherwise noted.
INL vs TEMPERATURE THD FFT PLOT
Figure 9. Figure 10.
FFT PLOT OFFSET vs PGA GAIN (Absolute Value)
Figure 11. Figure 12.
OFFSET DRIFT vs PGA GAIN ADS131E08 CHANNEL POWER
Figure 13. Figure 14.
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