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參數(shù)資料
| 型號(hào)： | AD7683BRMRL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類(lèi)： | ADC |
| 英文描述： | 16-Bit, 100 kSPS PulSAR ADC in MSOP/QFN |
| 中文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | MO-187AA, MSOP-8 |
| 文件頁(yè)數(shù)： | 15/20頁(yè) |
| 文件大小： | 480K |
| 代理商： | AD7683BRMRL7 |
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AD7940
POWER VS. THROUGHPUT RATE
By using the power-down mode on the AD7940 when not
converting, the average power consumption of the ADC
decreases at lower throughput rates. Figure 19 shows how as the
throughput rate is reduced, the part remains in its shutdown
state longer, and the average power consumption over time
drops accordingly.
Rev. 0 | Page 15 of 20
For example, if the AD7940 is operated in a continuous sam-
pling mode, with a throughput rate of 10 kSPS and an SCLK of
2.5 MHz (V
DD
= 3.6 V), and the device is placed in power-down
mode between conversions, the power consumption is calcu-
lated as follows. The maximum power dissipation during nor-
mal operation is 6.84 mW (V
DD
= 3.6 V). If the power-up time
from power-down is 1 μs, and the remaining conversion time is
6.4 μs, (using a 16 SCLK transfer), then the AD7940 can be said
to dissipate 6.84 mW for 7.4 μs during each conversion cycle.
With a throughput rate of 10 kSPS, the cycle time is 100 μs. For
the remainder of the conversion cycle, 92.6 μs, the part remains
in power-down mode. The AD7940 can be said to dissipate
1.08 μW for the remaining 92.6 μs of the conversion cycle.
Therefore, with a throughput rate of 10 kSPS, the average power
dissipated during each cycle is
(7.4/100) × (6.84 mW) + (92.6/100) × (1.08 μW) = 0.51 mW
Figure 19 shows the power dissipation versus the throughput
rate when using the power-down mode with 3.6 V supplies and
a 2.5 MHz SCLK.
0
P
0.01
0
5
10
15
20
25
THROUGHPUT (kSPS)
30
35
40
45
50
0.1
1
10
V
DD
= 3.6V
F
SCLK
= 2.5MHz
Figure 19. Power vs. Throughput Using Power-Down Mode at 3.6 V
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參數(shù)描述 |
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| AD7683BRMZ | 功能描述:IC ADC 16BIT 100KSPS 8-MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤(pán)（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類(lèi)型:8 個(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7683BRMZRL7 | 功能描述:IC ADC 16BIT SAR 100KSPS 8MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:2 個(gè)單端，單極 |
| AD7684 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3mW, 100kSPS, 14-Bit ADC in 6-Lead SOT-23 |
| AD7684BRM | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 16-bit Serial 8-Pin MSOP 制造商:Analog Devices 功能描述:IC 16-BIT ADC |
| AD7684BRMRL | 制造商:AD 制造商全稱:Analog Devices 功能描述:16-Bit, 100 kSPS PulSAR, Differential ADC in MSOP |
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