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ADS1294 Datasheet(PDF) 19 Page - Texas Instruments

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Part # ADS1294
Description  Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
PDF  88 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS1294 Datasheet(HTML) 19 Page - Texas Instruments

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background image
800
700
600
500
400
300
200
100
0
1
12
PGAGain
8
6
4
2
10
9
7
5
3
11
70
60
50
40
30
20
10
0
Error(%)
DataFrom31Devices,TwoLots
80
70
60
50
40
30
20
10
0
ThresholdError(mV)
DataFrom31Devices,TwoLots
120
100
80
60
40
20
0
ErrorinCurrentMagnitude(nA)
DataFrom31Devices,TwoLots
CurrentSetting=24nA
17.5
15.5
13.5
11.5
9.5
7.5
5.5
3.5
1.5
Number of Channels Disabled
1
0
8
4
6
2
3
5
7
AVDD = 3V
AVDD = 5V
40
30
20
10
0
10
20
30
40
50
-
-
-
-
-
InputRange(NormalizedtoFull-Scale)
-
0.8
-
1
1
-
0.2
0.2
-
0.6
-
0.4
0
0.4
0.8
0.6
Channel1
Channel2
Channel3
Channel4
Channel5
Channel6
Channel7
Channel8
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
www.ti.com
SBAS459H
– JANUARY 2010 – REVISED OCTOBER 2011
TYPICAL CHARACTERISTICS (continued)
All plots at TA = +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.
Copyright
© 2010–2011, Texas Instruments Incorporated
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Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R



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