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ADS1294 Datasheet(PDF) 18 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) 18 Page - Texas Instruments

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110
105
100
95
90
85
80
75
70
10
1k
Frequency(Hz)
100
DataRate=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)
100
DataRate=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
InputRange(NormalizedtoFull-Scale)
-
0.5
0.5
0
-
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(NormalizedtoFull-Scale)
-
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)
50
0
250
100
150
200
PGAGain=1
THD= 102dB
SNR=115dB
f
=500SPS
f
=ExternalClock
-
DR
CLK
0
20
40
60
80
100
120
140
160
180
-
-
-
-
-
-
-
-
-
Frequency(kHz)
2
0
16
4
6
8
PGAGain=6
THD= 104dB
SNR=74.5dB
-
f
=32kSPS
DR
10
12
14
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
SBAS459H
– JANUARY 2010 – REVISED OCTOBER 2011
www.ti.com
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.
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.
18
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Copyright
© 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R



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