AD7665 Analog Devices, AD7665 Datasheet - Page 9

• Manufacturer Part Number: AD7665
• Manufacturer: Analog Devices

Specifications of AD7665

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 570kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: Bip (Vref),Bip (Vref) x 2,Bip (Vref) x 4,Uni (Vref),Uni (Vref) x 2,Uni (Vref) x 4
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

REV.
TPC 3. Typical Positive INL Distribution (446 Units)
C
70
60
50
40
30
20
10
TPC 2. Differential Nonlinearity vs. Code
0
0
TPC 1. Integral Nonlinearity vs. Code
0.3
0.6
0.9
POSITIVE INL – LSB
1.2
1.5
1.8
2.1
2.4
2.7
Typical Performance Characteristics–AD7665
3.0
–9–
TPC 5. Histogram of 16,384 Conversions of a DC Input
at the Code Transition
TPC 6. Histogram of 16,384 Conversions of a DC Input
at the Code Center
TPC 4. Typical Negative INL Distribution (446 Units)
10000
8000
7000
6000
5000
4000
3000
2000
1000
9000
8000
7000
6000
5000
4000
3000
2000
1000
80
70
60
50
40
30
20
10
0
0
0
–3.0
7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006
7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8005
0
0
–2.7
0
0
–2.4
1
19
–2.1 –1.8
214
932
NEGATIVE INL – LSB
3310
CODE IN HEXA
CODE IN HEXA
7337 7204
9468
–1.5
3259
–1.2
870
131
–0.9
22
1
–0.6 –0.3
0
0
0
0