Datasheet

AD7780
Rev. A | Page 9 of 16
0 200 400 600 800 1000
CODE
SAMPLE
07945-014
8,388,380
8,388,385
8,388,390
8,388,395
8,388,400
8,388,405
8,388,410
8,388,415
Figure 14. Noise (V
REF
= AV
DD
, Update Rate = 10 Hz, Gain = 1)
OCCURRENCE
CODE
0
100
75
25
50
07945-015
8,388,385 8,388,391 8,388,397 8,388,403 8,388,409 8,388,415
Figure 15. Noise Distribution Histogram
(V
REF
= AV
DD
, Update Rate = 10 Hz, Gain = 1)
INL (ppm FS)
V
IN
(V)
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
07945-016
–0.04 –0.03 –0.02 –0.01 0 0.01 0.02 0.03 0.04
Figure 16. Integral Nonlinearity (V
REF
= AV
DD
, Gain = 128)
INL (ppm FS)
V
IN
(V)
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
07945-017
–6–4–20246
Figure 17. Integral Nonlinearity
(
V
REF
= AV
DD
, Gain = 1)
OFFSET (µV)
TEMPERATURE (°C)
–10
–8
–6
–4
–2
0
2
4
6
8
10
07945-018
–60 –40 –20 0 20 40 60 80 100 120
Figure 18. Offset vs. Temperature (Gain = 128)
GAIN ERROR (ppm)
TEMPERATURE (°C)
–200
–150
–100
–50
0
50
100
150
07945-019
–60 –40 –20 0 20 40 60 80 100 120
Figure 19. Gain Error vs. Temperature (Gain = 128)