Datasheet

REV. A
AD7675
–8–
–Typical Performance Characteristics
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
6
7FFF
8246
8000
8118
8001
14
8002
0
8003
0
8004
0
TPC 2. Histogram of 16,384 Conversions of a DC Input at
the Code Transition
POSITIVE INL – LSB
18
0.2
NUMBER OF UNITS
14
6
0
10
2
0.4 0.6 0.8 1.00
16
8
12
4
TPC 3. Typical Positive INL Distribution (40 Units)
CODE IN HEXA
16000
7FF9
0
COUNTS
12000
8000
4000
0000
14000
6000
2000
10000
7FFA
0
7FFB
0
7FFC
887
7FFD 7FFE
810
7FFF
0
8000
0
8001
0
8002
0
7FF8
0
14687
TPC 4. Histogram of 16,384 Conversions of a DC Input at
the Code Center
NEGATIVE INL – LSB
18
–0.8
NUMBER OF UNITS
14
6
0
10
2
–0.6 –0.4 –0.2 0.0–1.0
16
8
12
4
TPC 5. Typical Negative INL Distribution (40 Units)
FREQUENCY – kHz
0
0102030 50
AMPLITUDE – dB of Full Scale
–40
–80
–100
–140
–180
–60
–120
–160
40
–20
f
S
= 100 kSPS
f
IN
= 45.01kHz
SNR = 94dB
THD = –110dB
SFDR = 110dB
SINAD = 93.9dB
TPC 6. FFT Plot