Datasheet

–9–
Typical Performance Characteristics–AD7671
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
0 16384 32768 49152 65536
INL – LSB
CODE
TPC 1. Integral Nonlinearity vs. Code
0
DNL – LSB
CODE
16384
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
–0.25
32768 49152 65536
–0.50
–1.00
–0.75
TPC 2. Differential Nonlinearity vs. Code
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
NUMBER OF UNITS
POSITIVE INL – LSB
60
50
40
30
20
10
0
TPC 3. Typical Positive INL Distribution (314 Units)
60
50
40
30
20
10
0
–3.0 –2.7 –2.4 –2.1 –1.8 –1.5 –1.2 –0.9 –0.6 –0.3
NUMBER OF UNITS
NEGATIVE INL – LSB
TPC 4. Typical Negative INL Distribution (314 Units)
0
1000
2000
3000
4000
5000
6000
7000
8000
7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8005
CODE IN HEXA
COUNTS
0017
25
1297
7029 7039
986
00
TPC 5. Histogram of 16,384 Conversions of a DC Input at
the Code Transition
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006
CODE IN HEXA
COUNTS
002132 100106
3296 3344
9503
TPC 6. Histogram of 16,384 Conversions of a DC Input at
the Code Center
REV. C