Datasheet

REV. A
–9–
Typical Performance Characteristics–AD7677
CODE
1.00
0 16384 32768 49152 65536
INL – LSB
0.75
0.25
0.00
–0.50
–1.00
0.50
–0.25
–0.75
TPC 1. Integral Nonlinearity vs. Code
CODE IN HEXA
9000
7FFB
0
COUNTS
8000
6000
4000
2000
0000
7000
3000
1000
5000
7FFC
0
7FFD
0
7FFE
10
7FFF
8287
8000
8066
8001
21
8002
0
8003
0
8004
0
TPC 2. Histogram of 16,384 Conversions of a
DC Input at the Code Transition
POSITIVE INL – LSB
20
0.1
NUMBER OF UNITS
16
8
0
12
4
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.10.0
1.0
TPC 3. Typical Positive INL Distribution (199 Units)
CODE
1.00
0 16384 32768 49152 65536
DNL – LSB
0.75
0.25
0.00
–0.50
–1.00
0.50
–0.25
–0.75
TPC 4. Differential Nonlinearity vs. Code
CODE IN HEXA
16000
7FFB
0
COUNTS
14000
8000
4000
0000
12000
6000
2000
10000
7FFC
0
7FFD
1
7FFE
994
7FFF 8000
1037
8001
0
8002
0
8003
0
8004
0
7FFA
0
14352
TPC 5. Histogram of 16,384 Conversions of a
DC Input at the Code Center
NEGATIVE INL – LSB
20
–0.9
NUMBER OF UNITS
16
8
0
12
4
–0.8 –0.7 –0.6 –0.5 –0.4 –0.3 –0.2 –0.1 1.0–1.0 0.0
TPC 6. Typical Negative INL Distribution (199 Units)