AD7450A Analog Devices, AD7450A Datasheet - Page 13

• Manufacturer Part Number: AD7450A
• Description: Differential Input, 1 MSPS, 12- (AD7450A) & 10-Bit (AD7440) ADCs
• Manufacturer: Analog Devices

Specifications of AD7450A

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOP,SOT

Figure 13. Change in DNL vs. V
Figure 14. Change in DNL vs. V
–0.5
–1.0
–0.5
–1.0
Figure 15. Change in INL vs. V
3.0
2.5
2.0
1.5
1.0
0.5
2.5
2.0
1.5
1.0
0.5
–1
–2
–3
–4
–5
0
0
5
4
3
2
1
0
0
0
0
0.5
0.5
0.5
1.0
1.0
1.0
1.5
1.5
V
V
V
REF
POSITIVE DNL
REF
REF
NEGATIVE DNL
REF
REF
REF
for the AD7450A for V
for the AD7450A for V
for the AD7450A for V
(V)
(V)
(V)
2.0
2.0
1.5
POSITIVE DNL
NEGATIVE DNL
POSITIVE INL
NEGATIVE INL
2.5
2.5
2.0
3.0
3.0
2.2
DD
DD
DD
= 5 V
= 5 V
= 3 V
3.5
2.5
3.5
Rev. C | Page 13 of 28
Figure 18. Change in ENOB vs. Reference Voltage for V
Figure 17. Change in Zero-Code Error vs. Reference Voltage for
–0.5
–1.0
–1.5
–2.0
Figure 16. Change in INL vs. V
12.0
11.5
11.0
10.5
10.0
2.5
2.0
1.5
1.0
0.5
9.5
9.0
8.5
8.0
7.5
7.0
0
8
7
6
5
4
3
2
1
0
0
0
0
V
DD
V
= 3V
DD
V
0.5
0.5
DD
= 3V
V
= 5V
0.5
V
DD
DD
= 5 V and 3 V for the AD7450A
= 5V
1.0
1.0
for the AD7450A
1.0
1.5
1.5
V
V
V
REF
REF
REF
REF
POSITIVE INL
NEGATIVE INL
for the AD7450A for V
(V)
(V)
(V)
2.0
2.0
AD7440/AD7450A
1.5
2.5
2.5
2.0
DD
3.0
3.0
= 5 V and 3 V
2.2
DD
= 3 V
2.5
3.5
3.5