Datasheet

AD7631 Data Sheet
Rev. B | Page 14 of 32
06588-017
TEMPERATURE (°C)
THD (dB)
–55 –35 –15 5 25 45 65 85 105 125
–132
–128
–124
–120
–116
–112
–108
–
104
0V TO 10V
±5V
±10V
0V TO 5V
Figure 17. THD vs. Temperature
–20
–16
–12
–8
–4
0
4
8
12
16
20
–55 –35 –15 5 25 45 65 85 105 125
ZERO/OFFSET ERROR
POSITIVE
FULL-SCALE ERROR
NEGATIVE
FULL-SCALE ERROR
TEMPERATURE (°C)
ZERO/OFFSET ERROR, FULL-SCALE ERROR (LSB)
0
6588-018
Figure 18. Zero/Offset Error, Positive and Negative Full-Scale Error vs.
Temperature, All Normalized to 25°C
60
0
08
REFERENCE DRIFT (ppm/°C)
NUMBER OF UNITS
50
40
30
20
10
1234567
06588-019
Figure 19. Reference Voltage Temperature Coefficient Distribution (247 Devices)
06588-020
TEMPERATURE (°C)
SFDR (dB)
–55 –35 –15 5 25 45 65 85 105 125
104
108
112
116
120
124
128
132
0V TO 10V
0V TO 5V
±5V
±10V
Figure 20. SFDR vs. Temperature (Excludes Harmonics)
5.0080
4.9920
–55 125
TEMPERATURE (°C)
V
REF
(V)
–35 –15 5 25 45 65 85 105
06588-021
4.9940
4.9960
4.9980
5.0000
5.0020
5.0040
5.0060
Figure 21. Typical Reference Voltage Output vs. Temperature (3 Devices)
0.001
0.01
0.1
1
10
100
1000
10000
100000
10 100 1000 10000 100000 1000000
OVDD
DVDD
AVDD
PDREF = PDBUF = HIGH
VCC +15V
VEE –15V
0
6588-022
SAMPLING RATE (SPS)
OPERATING CURRENTS (µA)
Figure 22. Operating Currents vs. Sample Rate