參數(shù)資料
型號(hào)： EVAL-AD7328SDZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 25/37頁(yè)
文件大?。?/td> 0K
描述： BOARD EVAL FOR AD7328
標(biāo)準(zhǔn)包裝： 1
系列： iCMOS®
ADC 的數(shù)量： 1
位數(shù)： 12
采樣率（每秒）： 1M
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
輸入范圍： ±10 V
在以下條件下的電源（標(biāo)準(zhǔn)）： 31mW @ 1MSPS
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD7328
已供物品： 板
AD7328
Data Sheet
Rev. C | Page 30 of 36
POWER VS. THROUGHPUT RATE
The power consumption of the AD7328 varies with the throughput
rate. The static power consumed by the AD7328 is very low, and
significant power savings can be achieved as the throughput rate is
reduced. Figure 51 and Figure 52 show the power vs. throughput
rate for the AD7328 at a VCC of 3 V and 5 V, respectively. Both
plots clearly show that the average power consumed by the AD7328
is greatly reduced as the sample frequency is reduced. This is true
whether a fixed SCLK value is used or the SCLK value is scaled
with the sampling frequency. Figure 51 and Figure 52 show the
power consumption when operating the device in normal mode
for a fixed 20 MHz SCLK and a variable SCLK that scales with
the sampling frequency.
12
0
1100
04852-
052
THROUGHPUT RATE (kSPS)
A
VER
A
G
E
PO
W
ER
(m
W
)
10
8
6
4
2
100
200
300
400
500
600
700
800
900 1000
VARIABLE SCLK
20MHz SCLK
VCC = 3V
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
Figure 51. Power vs. Throughput Rate with 3 V VCC
20
0
1000
04852-
053
THROUGHPUT RATE (kHz)
A
VER
A
G
E
PO
W
ER
(m
W
)
18
16
14
12
10
8
6
4
2
100
200
300
400
500
600
700
800
900
20MHz SCLK
VARIABLE SCLK
VCC = 5V
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
Figure 52. Power vs. Throughput Rate with 5 V VCC
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