Datasheet

AD7441/AD7451
Rev. D | Page 11 of 24
5
CHANGE IN DNL (LSB)
–1.0
–0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
01234
4.0
V
REF
(V)
POSITIVE DNL
NEGATIVE DNL
03153-013
Figure 13. Change in DNL vs. V
REF
for V
DD
= 5 V
CHANGE IN INL (LSB)
–2
–1
0
1
2
3
4
01234
5
V
REF
(V)
5
POSITIVE DNL
NEGATIVE DNL
03153-014
Figure 14. Change in INL vs. V
REF
for V
DD
= 5 V
EFFECTIVE NUMBER OF BITS
6
7
8
9
10
11
012345
12
V
REF
(V)
V
DD
= 3V
V
DD
= 5V
03153-015
Figure 15. ENOB vs. V
REF
for V
DD
= 5 V and 3 V
SNR (dB)
0 100 200 300 400 500
0
–20
–40
–60
–80
–100
–120
–140
V
REF
(V)
8192 POINT FFT
f
SAMPLE
= 1MSPS
f
IN
= 100kSPS
SINAD = 61.7dB
THD = –81.7dB
SFDR = –82dB
03153-016
Figure 16. AD7441 Dynamic Performance
DNL ERROR (LSB)
0 256 512 768 1024
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
CODE
0
3153-017
Figure 17. Typical DNL for the AD7441
INL ERROR (LSB)
0 256 512 768 1024
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
CODE
0
3153-018
Figure 18. Typical INL for the AD7441