Datasheet

116
114
112
110
108
106
DynamicRange(dBFS)
256 128 64 32
OversamplingRation(OSR)
LL
WB
78.125kHz:OSR=256
156.25kHz:OSR=128
312.5kHz:OSR=64
625kHz:OSR=32
-40
24-BitOutputCode
-48
-36
-32
-12
-8
-4
-16
-20
-24
-28
0
4
36
32
8
12
16
28
24
20
40
44
48
-44
NumberofOccurrences
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
WideBandwidth
f =78.125kSPS
=10.8OutputCodes
65kPoints
DATA
s
14
12
10
8
6
4
2
0
RMSNoise( V)m
-95 -76 -57 -38 -19 0 19 38 57 76 95
AnalogInputRange( 100%ofFSR)
±
FPATH=0
DRATE=11
FPATH=1
DRATE=11
FPATH=1
DRATE=00
FPATH=0
DRATE=00
5
4
3
2
1
0
1
2
3
4
5-
-
-
-
-
IntegralNonlinearity(ppm)
-3
-2 -1
0
1 2
3
AnalogInputVoltage(V)
+85 C°
+25 C°
-40 C°
ADS1672
www.ti.com
SBAS402D JUNE 2008REVISED JULY 2010
TYPICAL CHARACTERISTICS (continued)
All specifications are at T
A
= –40°C to +85°C, AVDD = 5V, DVDD = 3V, f
CLK
= 20MHz, V
REF
= +3V, and R
BIAS
= 7.5k, unless
otherwise noted.
NOISE HISTOGRAM DYNAMIC RANGE vs
(OSR = 256) OVERSAMPLING RATIO
Figure 14. Figure 15.
NOISE vs INL vs
INPUT VOLTAGE TEMPERATURE
Figure 16. Figure 17.
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