參數(shù)資料
型號: AD7324BRUZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 25/37頁
文件大?。?/td> 0K
描述: IC ADC 12BIT+SAR 4CHAN 16-TSSOP
標準包裝: 2,500
位數(shù): 12
采樣率(每秒): 1M
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 30mW
電壓電源: 雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個單端,單極;4 個單端,雙極;2 個差分,單極;2 個差分,雙極
配用: EVAL-AD7324CBZ-ND - BOARD EVALUATION FOR AD7324CBZ
AD7324
Data Sheet
Rev. B | Page 30 of 36
POWER VS. THROUGHPUT RATE
The power consumption of the AD7324 varies with throughput
rate. The static power consumed by the AD7324 is very low, and
a 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 AD7324 at a VCC of 3 V and 5 V,
respectively. Both plots clearly show that the average power
consumed by the AD7324 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 fixed 20 MHz SCLK and a variable SCLK
that scales with the sampling frequency.
12
0
1100
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
04864-
052
Figure 49. Power vs. Throughput Rate with 3 V VCC
20
0
1000
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
04864-
053
Figure 50. Power vs. Throughput Rate with 5 V VCC
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