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ADS1258IPHPREP Datasheet(PDF) 13 Page - Texas Instruments

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Part # ADS1258IPHPREP
Description  16-CHANNEL, 24-BIT ANALOG-TO-DIGITAL CONVERTER
PDF  59 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS1258IPHPREP Datasheet(HTML) 13 Page - Texas Instruments

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background image
220
210
200
190
180
170
160
150
140
130
120
-40
Temperature( C)
°
120
-20
0
20
60
40
100
80
OnlyADS1258
TemperatureForced;
TestPCBinFree-Air
ADS1258andTestPCB
TemperaturesForcedTogether
Temperature Reading (
_C)
8
7
6
5
4
3
2
1
0
50 units from two production lots.
T
A = +25_ C
Temperature (
_C)
18
17
16
15
14
−40
−20
120
100
0
20
80
60
40
Ratio (
µA/µA)
25
20
15
10
5
0
50 units from two production lots.
Temperature (
_C)
10
8
6
4
2
0
1.0
0.8
0.6
0.4
0.2
0
−40
−20
120
0
20
40
60
80
100
AVDD, AVSS
DVDD
Master Clock (MHz)
20
16
12
8
4
0
20
16
12
8
4
0
0.1
1
100
10
DRATE[1:0] = 11
Noise
Linearity
ADS1258-EP
www.ti.com
SBAS445D
– MARCH 2009 – REVISED MARCH 2011
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, AVDD = +2.5V, AVSS = –2.5V, DVDD = +3.3V, fCLK = 16MHz (external clock) or fCLK = 15.729MHz (internal
clock), OPA227 buffer between MUX outputs and ADC inputs, VREFP = +2.048V, and VREFN =
–2.048V, unless otherwise
noted.
TEMPERATURE SENSOR VOLTAGE vs TEMPERATURE
TEMPERATURE SENSOR READING HISTOGRAM
Figure 28.
Figure 29.
SENSOR BIAS CURRENT SOURCE RATIO
SENSOR BIAS CURRENT SOURCE RATIO
HISTOGRAM
vs TEMPERATURE
Figure 30.
Figure 31.
SUPPLY CURRENT vs TEMPERATURE
NOISE AND INL vs MASTER CLOCK
Figure 32.
Figure 33.
Copyright
© 2009–2011, Texas Instruments Incorporated
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Product Folder Link(s): ADS1258-EP



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