AD7661 Analog Devices, AD7661 Datasheet - Page 12

• Manufacturer Part Number: AD7661
• Manufacturer: Analog Devices

Specifications of AD7661

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 100kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,2.5V p-p,Uni (Vref),Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

AD7661
TYPICAL PERFORMANCE CHARACTERISTICS
–0.5
–1.0
–1.5
–2.0
–2.5
40
30
20
10
60
50
40
30
20
10
2.5
2.0
1.5
1.0
0.5
0
0
0
0.0
0
0
Figure 7. Typical Positive DNL Distribution (194 Units)
Figure 6. Typical Positive INL Distribution (194 Units)
Figure 5. Integral Nonlinearity vs. Code
0.25
0.5
16384
0.50
POSITIVE INL (LSB)
POSITIVE DNL (LSB)
1.0
32768
0.75
CODE
1.5
1.00
49152
2.0
1.75
1.50
65536
2.5
Rev. 0 | Page 12 of 28
–0.5
–1.0
40
30
20
10
90
80
70
60
50
40
30
20
10
1.5
1.0
0.5
0
–1.00
0
–2.5
0
Figure 10. Typical Negative DNL Distribution (194 Units)
0
Figure 9. Typical Negative INL Distribution (194 Units)
Figure 8. Differential Nonlinearity vs. Code
–2.0
–0.75
16384
NEGATIVE INL (LSB)
NEGATIVE DNL (LSB)
–1.5
–0.50
32768
CODE
–1.0
–0.25
49152
–0.5
65536
0
0