Datasheet

AD7997/AD7998
Rev. 0 | Page 14 of 32
SUPPLY CURRENT (mA)
SUPPLY VOLTAGE (V)
03473-0-016
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.7 3.2 3.7 4.2 4.7 5.2
MODE 2 - 147kSPS
MODE 1 - 121kSPS
TEMPERATURE = +85 ° C
TEMPERATURE = +25
° C
TEMPERATURE = –40
° C
TEMPERATURE = +85
° C
TEMPERATURE = +25
° C
TEMPERATURE = –40
° C
Figure 16. AD7998 Average Supply Current vs. Supply Voltage
for Various Temperatures
03473-0-017
10.4
10.6
10.8
11.0
11.2
11.4
11.6
11.8
12.0
1.200 2.048 2.500 2.700 3.000 3.300 4.096 4.500 5.000
REFERENCE VOLTAGE (V)
ENOB (BITS)
68
69
70
71
72
73
74
SINAD (dB)
ENOB V
DD
= 3V
ENOB V
DD
= 5V
SINAD V
DD
= 3V
SINAD V
DD
= 5V
Figure 17. SINAD/ENOB vs. Reference Voltage, Mode 1, 121 kSPS