參數(shù)資料
型號: AD7327BRUZ
廠商: Analog Devices Inc
文件頁數(shù): 25/37頁
文件大?。?/td> 0K
描述: IC ADC 12BIT+ SAR 8CHAN 20TSSOP
標(biāo)準(zhǔn)包裝: 75
位數(shù): 12
采樣率(每秒): 500k
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): 17mW
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: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 管件
輸入數(shù)目和類型: 8 個單端,單極;8 個單端,雙極;4 個差分,單極;4 個差分,雙極
產(chǎn)品目錄頁面: 777 (CN2011-ZH PDF)
配用: EVAL-AD7327CBZ-ND - BOARD EVALUATION FOR AD7327
AD7327
Rev. B | Page 30 of 36
POWER VS. THROUGHPUT RATE
The power consumption of the AD7327 varies with throughput
rate. The static power consumed by the AD7327 is very low, and
significant power savings can be achieved as the throughput rate is
reduced. Figure 51 and Figure 52 shows the power vs. throughput
rate for the AD7327 at a VCC of 3 V and 5 V, respectively. Both
plots clearly show that the average power consumed by the
AD7327 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 51 and Figure 52 show the
power consumption when operating in normal mode for a
variable SCLK that scales with the sampling frequency.
12
0
THROUGHPUT RATE (kSPS)
A
VER
A
G
E
PO
W
ER
(m
W
)
10
8
6
4
2
100
200
300
400
500
VARIABLE SCLK
VCC = 3V
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
05401-
052
Figure 51. Power vs. Throughput Rate with 3 V VCC
20
0
THROUGHPUT RATE (kSPS)
A
VER
A
G
E
PO
W
ER
(m
W
)
18
16
14
12
10
8
6
4
2
100
200
300
400
500
VARIABLE SCLK
VCC = 5V
VDD/VSS = ±12V
TA = 25°C
INTERNAL REFERENCE
05401-
053
Figure 52. Power vs. Throughput Rate with 5 V VCC
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