DDC264 Datasheet, PDF (6/26 Pages) Texas Instruments – 64-Channel, Current-Input Analog-to-Digital Converter

DDC264
SBAS368C – MAY 2006 – REVISED JULY 2011
www.ti.com
TYPICAL CHARACTERISTICS
At T_A = +25°C, unless otherwise indicated.
INTEGRAL NONLINEARITY
70
DDC264C, 3kSPS
60
Range 0
INTEGRAL NONLINEARITY
125
DDC264CK, 6kSPS
100
Range 0
50
40
Range 3
30
75
Range 3
50
25
20
10
0
-10
-20
-30
0
Range 1
Range 2
100k 200k 300k 400k 500k 600k 700k 800k 900k 1M
Input (ppm of Full-Scale)
0
-25
-50
-75
-100
-125
0
Range 1
Range 2
100k 200k 300k 400k 500k 600k 700k 800k 900k 1M
Input (ppm of Full-Scale)
Figure 1.
Figure 2.
INTEGRAL NONLINEARITY
ENVELOPE OF ALL 64 CHANNELS
50
DDC264C, 3kSPS
40 _{Range 3, +25°C}
30
Average
20
10
0
-10
-20
-30
-40
-50
0
100k 200k 300k 400k 500k 600k 700k 800k 900k 1M
Input (ppm of Full-Scale)
Figure 3.
INTEGRAL NONLINEARITY
ENVELOPE OF ALL 64 CHANNELS
125
DDC264CK, 6kSPS
100 _{Range 3, +25°C}
75
50
25
Average
0
-25
-50
-75
-100
-125
0
100k 200k 300k 400k 500k 600k 700k 800k 900k 1M
Input (ppm of Full-Scale)
Figure 4.
INTEGRAL NONLINEARITY vs TEMPERATURE
50
DDC264C, 3kSPS
40 _{Range 3}
30
+75°C
+60°C
20
10
0
-10
-20
-30
-40
-50
0
+45°C
+25°C
-5°C
100k 200k 300k 400k 500k 600k 700k 800k 900k 1M
Input (ppm of Full-Scale)
Figure 5.
INTEGRAL NONLINEARITY vs TEMPERATURE
125
DDC264CK, 6kSPS
100 _{Range 3}
75
50
+45°C
25
+75°C
+60°C
0
-25
-50
-75
-100
-125
0
+25°C
-5°C
100k 200k 300k 400k 500k 600k 700k 800k 900k 1M
Input (ppm of Full-Scale)
Figure 6.
6
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