Datasheet

AD7781
Rev. 0 | Page 9 of 16
524,276
524,275
524,274
524,273
0 200 400 600 800 1000
SAMPLE
CODE
08162-014
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–6 –4 –2 0 2 4 6
V
IN
(V)
INL (ppm FS)
08162-017
Figure 14. Noise (V
REF
= AV
DD
, Update Rate = 10 Hz, Gain = 1)
800
600
400
200
0
524,274 524,275
OCCURRENCE
162-015
CODE
08
Figure 15. Noise Distribution Histogram
(V
REF
= AV
DD
, Update Rate = 10 Hz, Gain = 1)
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
INL (ppm FS)
–2.0
–2.5
–0.04 –0.03 –0.02 –0.01 0 0.01 0.02 0.03 0.04
V
IN
(V)
08162-016
Figure 16. Integral Nonlinearity (V
REF
= AV
DD
, Gain = 128)
Figure 17. Integral Nonlinearity (V
REF
= AV
DD
, Gain = 1)
10
8
6
4
2
0
–2
–4
–6
–8
–10
–60 –40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
OFFSET (µV)
08162-018
Figure 18. Offset vs. Temperature (Gain = 128)
150
100
50
0
–50
–100
–150
GAIN ERROR (ppm)
–200
–60 –40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
08162-019
Figure 19. Gain Error vs. Temperature (Gain = 128)