AD7440 Analog Devices, AD7440 Datasheet - Page 14

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

Specifications of AD7440

• Resolution (bits): 10bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOT

AD7440/AD7450A
10,000
Figure 19. Histogram of 10,000 Conversions of a DC Input for the
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
–100
–120
–140
–20
–40
–60
–80
2044
0
0
Figure 20. AD7440 Dynamic Performance with V
0
10,000 CONVERSIONS
f
V
S
IN+
= 1MSPS
= V
IN–
2045
100
AD7450A with V
FREQUENCY (kHz)
2046
200
CODES
10,000
CODE
DD
2047
300
= 5 V
8192 POINT FFT
f
f
SINAD = +61.6dB
THD = –81.7dB
SFDR = –83.1dB
SAMPLE
IN
= 100kHz
2048
400
DD
= 1MSPS
= 5 V
2049
500
Rev. C | Page 14 of 28
–0.1
–0.2
–0.3
–0.4
–0.5
–0.1
–0.2
–0.3
–0.4
–0.5
0.5
0.4
0.3
0.2
0.1
0.5
0.4
0.3
0.2
0.1
0
0
0
0
Figure 21. Typical DNL for the AD7440 for V
Figure 22. Typical INL for the AD7440 for V
256
256
CODE
CODE
512
512
768
768
DD
DD
= 5 V
= 5 V
1024
1024