Datasheet

AD7612 Data Sheet
Rev. A | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = DVDD = 5 V; OVDD = 5 V; VCC = 15 V; VEE = −15 V; V
REF
= 5 V; T
A
= 25°C.
1.5
–1.5
0 65536
CODE
INL (LSB)
–1.0
–0.5
0
0.5
1.0
16384 32768 49152
06265-005
Figure 5. Integral Nonlinearity vs. Code
180
0
–1.0 1.0
INL DISTRIBUTION (LSB)
NUMBER OF UNITS
160
140
120
100
80
60
40
20
–0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8
NEGATIVE INL
POSITIVE INL
06265-006
Figure 6. Integral Nonlinearity Distribution (239 Devices)
200k
20k
0
7FFE 8006
CODE IN HEX
COUNTS
40k
60k
80k
100k
120k
140k
160k
180k
7FFF 8000 8001 8002 8003 8004 8005
0015 930 0
σ = 0.55
181942
47749
31321
06265-007
Figure 7. Histogram of 261,120 Conversions of a DC Input
at the Code Center
1.5
–1.0
0 65536
CODE
DNL (LSB)
0
0.5
16384 32768 49152
1.0
–0.5
06265-008
Figure 8. Differential Nonlinearity vs. Code
180
0
–1.0 1.0
DNL DISTRIBUTION (LSB)
NUMBER OF UNITS
160
140
120
100
80
60
40
20
–0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8
NEGATIVE DNL
POSITIVE DNL
06265-009
Figure 9. Differential Nonlinearity Distribution (239 Devices)
140k
0
7FFE 80078006
CODE IN HEX
COUNTS
40k
60k
80k
100k
7FFF 8000 8001 8002 8003 8004 8005
20k
120k
0001
1232
00
917
σ = 0.52
130570
128400
06265-010
Figure 10. Histogram of 261,120 Conversions of a DC Input
at the Code Transition