
AD7323
POWER VS. THROUGHPUT RATE
The power consumption of the AD7323 varies with throughput
rate. The static power consumed by the AD7323 is very low, and
significant power savings can be achieved as the throughput
rate is reduced. Figure 49 and Figure 50 shows the power vs.
throughput rate for the AD7323 at a V
CC
of 3 V and 5 V,
respectively. Both plots clearly show that the average power
consumed by the AD7323 is greatly reduced as the sample
frequency is reduced. This is true whether a fixed SCLK value is
used or if it is scaled with the sampling frequency. Figure 49 and
Figure 50 show the power consumption when operating in
normal mode for a variable SCLK that scales with the sampling
frequency.
Rev. 0 | Page 31 of 36
12
0
0
THROUGHPUT RATE (kSPS)
A
10
8
6
4
2
100
200
300
400
500
VARIABLE SCLK
V
CC
= 3V
V
DD
/V
= ±12V
T
= 25°C
INTERNAL REFERENCE
0
Figure 49. Power vs. Throughput Rate with 3 V V
CC
20
0
0
THROUGHPUT RATE (kSPS)
A
18
16
14
12
10
8
6
4
2
100
200
300
400
500
VARIABLE SCLK
V
CC
= 5V
V
DD
/V
= ±12V
T
= 25°C
INTERNAL REFERENCE
0
Figure 50. Power vs. Throughput Rate with 5 V V
CC