AD7450BRM-REEL 查看數據表（PDF） - Analog Devices
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AD7450BRM-REEL Datasheet PDF : 22 Pages
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1.5
1.0
POSITIVE INL
0.5
0
–0.5
NEGATIVE INL
–1.0
–1.5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5
VREF
TPC 10. Change in INL vs. Reference
Voltage VDD = 5 V
2.0
1.5
1.0
POSITIVE INL
0.5
0
–0.5
NEGATIVE INL
–1.0
–1.5
0
0.6
1.2
1.8
2.4
VREF
TPC 11. Change in INL vs. Reference
Voltage VDD = 3.3 V*
AD7450
1
VDD = 5V
0 fS = 1MSPS
–1
–2
–3
VDD = 3.3V
fS = 833kSPS
–4
–5
–6
–7
–8
–9
0.25 0.75
1.25 1.75 2.25 2.75 3.25 3.50
VREF
TPC 12. Change in Zero-Code Error vs.
Reference Voltage VDD = 5 V and 3.3 V*
10,000
9,000
8,000
7,000
6,000
10,000
CODES
VIN؉ = V IN–
10,000 CONVERSIONS
fS = 1MSPS
5,000
4,000
3,000
2,000
1,000
0
2044
2045
2046 2047
CODE
2048
2049
TPC 13. Histogram of the Output
Codes with a DC Input for VDD = 5 V
10,000
9,000
8,000
7,000
6,000
9,839
CODES
VIN؉ = V IN–
10,000 CONVERSIONS
fS = 833kSPS
5,000
4,000
3,000
2,000
1,000
0
2044
71
CODES
90
CODES
2045
2046 2047
CODE
2048
2049
TPC 14. Histogram of the Output
Codes with a DC Input for VDD = 3 V
12
11
VDD = 5V
fS = 1MSPS
10
9
8
VDD = 3.3V
7
fS = 833kSPS
6
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
VREF
TPC 15. Change in ENOB vs. Refer-
ence Voltage VDD = 5 V and 3.3 V*
90
80
70
60
50
40
30
20
10
0
10
VDD = 5V
VDD = 3V
100
1,000
FREQUENCY – kHz
10,000
TPC 16. CMRR vs. Input Frequency
for VDD = 5 V and 3 V
*See References section.
Rev. A
–9–
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