Datasheet

REV. E
–8–
AD7664
2.5
INL – LSB
CODE
65536
1.5
0
–1.5
–2.5
4915232768163840
1.0
–0.5
–2.0
2.0
0.5
–1.0
TPC 1. Integral Nonlinearity vs. Code
8000
7F86
COUNTS
CODE – Hexa
7F87 7F8F7F8E7F8D7F8C7F8B7F8A7F897F88
7000
6000
5000
4000
3000
2000
1000
0
753
7288 7148
1173
10 0 01200
TPC 2. Histogram of 16,384 Conversions of a DC Input
at the Code Transition
POSITIVE INL (LSB)
140
00.51.01.5 2.0 2.5
NUMBER OF UNITS
130
120
110
100
90
80
70
60
50
40
30
20
10
0
TPC 3. Typical Positive INL Distribution (600 Units)
1.50
DNL – LSB
CODE
65536
1.00
0.25
–0.50
–1.00
4915232768163840
0.75
0
–0.75
1.25
0.50
–0.25
TPC 4. Differential Nonlinearity vs. Code
10000
7FB3
COUNTS
CODE – Hexa
7FB4 7FBB7FBA7FB97FB87FB77FB67FB5
8000
6000
5000
4000
3000
2000
1000
0
3340
9008
3643
257
00
136
00
9000
7000
TPC 5. Histogram of 16,384 Conversions of a DC Input
at the Code Center
NEGATIVE INL (LSB)
180
–2.5 –2.0 –1.5 –1.0 –0.5 0.0
NUMBER OF UNITS
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
TPC 6. Typical Negative INL Distribution (600 Units)
–Typical Performance Characteristics