ADS8327_14 Datasheet, PDF (15/51 Pages) Texas Instruments – LOW POWER, 16-BIT, 500-kHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE

ADS8327
ADS8328
www.ti.com
SLAS415E – APRIL 2006 – REVISED JANUARY 2011
TYPICAL CHARACTERISTICS
At –40°C to 85°C, V_REF (REF+ – REF–) = 4.096 V when +VA = +VBD = 5 V or V_REF (REF+ – REF–) = 2.5 V
when +VA = +VBD = 2.7 V, f_SCLK = 21 MHz, f_I = DC for DC curves, and f_I = 100 kHz for AC curves, unless
otherwise noted.
CROSSTALK
vs
FREQUENCY
DIFFERENTIAL NONLINEARITY
vs
FREE-AIR TEMPERATURE
INTEGRAL NONLINEARITY
vs
FREE-AIR TEMPERATURE
110
0.9
1.8
105
100
95
90
85
80
0
+VA = 5 V
+VA = 2.7
50
100
150
200
F -Frequency - kHz
Figure 7.
0.8
+VA = 5 V
0.7
+VA = 2.7
0.6
0.5
-40 -25 -10 5 20 35 50 65 80
T_A - Free-Air Temperature - °C
Figure 8.
1.7
1.6
+VA = 5 V
1.5
+VA = 2.7 V
1.4
-40 -25 -10 5 20 35 50 65 80
T_A - Free-Air Temperature - °C
Figure 9.
DIFFERENTIAL NONLINEARITY
vs
EXTERNAL CLOCK FREQUENCY
2
+VA = 5 V
1.5
1
MAX
0.5
0
MIN
-0.5
-1
-1.5
-2
0
5
10
15
20
External Clock Frequency - MHz
Figure 10.
INTEGRAL NONLINEARITY
vs
EXTERNAL CLOCK FREQUENCY
2
+VA = 5 V
1.5
Max
1
0.5
0
-0.5
-1
-1.5
-2
0
Min
5
10
15
20
External Clock Frequency - MHz
Figure 11.
DIFFERENTIAL NONLINEARITY
vs
EXTERNAL CLOCK FREQUENCY
2
+VA = 2.7 V
1.5
1
Max
0.5
0
Min
-0.5
-1
-1.5
-2
0
5
10
15
20
External Clock Frequency - MHz
Figure 12.
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