Datasheet

800
700
600
500
400
300
200
100
0
1
12
PGAGain
Offset( V)m
8642 109753 11
70
60
50
40
30
20
10
0
-0.53
Error(%)
NumberofBins
-0.41
-0.18
0.06 0.30 0.54 0.66 0.42 0.18
-0.06
-0.29
DataFrom31Devices,TwoLots
80
70
60
50
40
30
20
10
0
-20
ThresholdError(mV)
NumberofBins
-15
0
10
20 30 35 25 15
5
-10
DataFrom31Devices,TwoLots
120
100
80
60
40
20
0
-2.70
ErrorinCurrentMagnitude(nA)
NumberofBins
-2.14
-1.01
0.12 1.24 2.37 2.93 1.80 0.68
-0.45
-1.57
DataFrom31Devices,TwoLots
CurrentSetting=24nA
17.5
15.5
13.5
11.5
9.5
7.5
5.5
3.5
1.5
Number of Channels Disabled
Power (mW)
10 84 62 3 5 7
AVDD = 3V
AVDD = 5V
40
30
20
10
0
10
20
30
40
50
-
-
-
-
-
InputRange(NormalizedtoFull-Scale)
IntegralNonlinearity(ppm)
-0.8-1 1-0.2 0.2-0.6 -0.4 0 0.4 0.80.6
Channel1
Channel2
Channel3
Channel4
Channel5
Channel6
Channel7
Channel8
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
SBAS459I –JANUARY 2010–REVISED JANUARY 2012 www.ti.com
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.
OFFSET vs PGA GAIN
(ABSOLUTE VALUE) TEST SIGNAL AMPLITUDE ACCURACY
Figure 15. Figure 16.
LEAD-OFF CURRENT SOURCE ACCURACY
LEAD-OFF COMPARATOR THRESHOLD ACCURACY DISTRIBUTION
Figure 17. Figure 18.
ADS1294R/6R/8R NONLINEARITY ADS1298/8R CHANNEL POWER
Figure 19. Figure 20.
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Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R