Datasheet

Data Sheet AD7877
Rev. D | Page 9 of 44
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
CC
= 2.7 V, V
REF
= 2.5 V, f
SAMPLE
= 125 kHz, f
DCLK
= 16 × f
SAMPLE
= 2 MHz, unless otherwise noted.
800
700
600
500
–50 –30 –10 0 30 50 70 90
03796-030
TEMPERATURE (°C)
CURRENT (µA)
ADC AND REF
ADC, REF, AND DAC
Figure 6. Supply Current vs. Temperature
1000
400
500
600
700
800
900
2.0 2.3 2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5.0
03796-031
V
CC
(V)
CURRENT (µA)
ADC AND REF
ADC, REF, AND DAC
Figure 7. Supply Current vs. V
CC
0.6
–0.6
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
–50 –30 –10 10 30 50 70 90
03796-039
TEMPERATURE (°C)
DELTA FROM 25°C (LSB)
Figure 8. Change in ADC Gain vs. Temperature
200
80
100
120
140
160
180
–50 –30 –10 10 30 50 70 90
03796-032
TEMPERATURE (°C)
CURRENT (nA)
Figure 9. Full Power-Down I
DD
vs. Temperature
0.6
–0.6
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
–50 –30 –10 10 30 50 70 90
03796-040
TEMPERATURE (°C)
DELTA FROM 25°C (LSB)
Figure 10. Change in ADC Offset vs. Temperature
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0 500 1000 1500 2000 2500 3000 3500 4000
03796-044
CODE
INL (LSB)
Figure 11. ACD INL Plot