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AD7450ARMZ-REEL7 Datasheet(PDF) 9 Page - Analog Devices

Part # AD7450ARMZ-REEL7
Description  Differential Input, 1 MSPS ADC in SOIC-8 and SO-8
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7450ARMZ-REEL7 Datasheet(HTML) 9 Page - Analog Devices

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


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