ADS8513_14 Datasheet, PDF (6/34 Pages) Texas Instruments – 16-Bit, 40kSPS, Low-Power Sampling ANALOG-TO-DIGITAL CONVERTER with Internal Reference and Parallel/Serial Interface

ADS8513
SLAS486C – JUNE 2007 – REVISED JANUARY 2009 ...................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
POWER-SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
6
5.5
5
4.5
4
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_A - Free-Air Temperature - ºC
Figure 1.
BIPOLAR OFFSET ERROR
vs
FREE-AIR TEMPERATURE
9
20 V Bipolar Range,
Drift = 1.5 ppm/°C
6
3
0
-3
-6
-45 -30 -15 0 15 30 45 60 75 90 105 120
T_A - Free-Air Temperature - °C
Figure 4.
BIPOLAR OFFSET ERROR
vs
FREE-AIR TEMPERATURE
9
10 V Bipolar Range,
Drift = 0.8 ppm/°C
6
3
0
-3
INTERNAL REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
2.520
2.515
2.510
2.505
2.500
2.495
2.490
2.485
2.480
-40 -25 -10 5 20 35 50 65 80 95 110125
T_A - Free-Air Temperature - ºC
Figure 2.
BIPOLAR POSITIVE FULL-SCALE
ERROR
vs
FREE-AIR TEMPERATURE
0.1
20 V Bipolar Range,
Drift = 9.2 ppm/°C
0.05
0
-0.05
-0.1
-45 -30 -15 0 15 30 45 60 75 90 105 120
T_A - Free-Air Temperature - °C
Figure 5.
BIPOLAR POSITIVE FULL-SCALE
ERROR
vs
FREE-AIR TEMPERATURE
0.2
10 V Bipolar Range,
Drift = 10.3 ppm/°C
0.15
0.1
0.05
0
POWER-SUPPLY CURRENT
vs
SAMPLING FREQUENCY
6
5.5
5
4.5
4
10
20
30
40
f_s - Sampling Frequency - kHz
Figure 3.
BIPOLAR NEGATIVE FULL-SCALE
ERROR
vs
FREE-AIR TEMPERATURE
0.15
20 V Bipolar Range,
Drift = 12.2 ppm/°C
0.1
0.05
0
-0.05
-0.1
-0.15
-45 -30 -15 0 15 30 45 60 75 90 105 120
T_A - Free-Air Temperature - °C
Figure 6.
BIPOLAR NEGATIVE FULL-SCALE
ERROR
vs
FREE-AIR TEMPERATURE
0.1
10 V Bipolar Range,
Drift = 13.5 ppm/°C
0.05
0
-0.05
-0.1
-0.15
-6
-45 -30 -15 0 15 30 45 60 75 90 105 120
T_A - Free-Air Temperature - °C
Figure 7.
-0.05
-45 -30 -15 0 15 30 45 60 75 90 105 120
T_A - Free-Air Temperature - °C
Figure 8.
-0.2
-45 -30 -15 0 15 30 45 60 75 90 105 120
T_A - Free-Air Temperature - °C
Figure 9.
6
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