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參數資料
| 型號： | AD7273BRMZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 14/29頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT 3MSPS HS LP 8MSOP |
| 標準包裝： | 50 |
| 位數： | 10 |
| 采樣率（每秒）： | 3M |
| 數據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 18mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-MSOP |
| 包裝： | 管件 |
| 輸入數目和類型： | 1 個單端，單極 |
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AD7273/AD7274
Rev. 0 | Page 20 of 28
POWER VS. THROUGHPUT RATE
Figure 34 shows the power consumption of the device in
normal mode, in which the part is never powered down. By
using the power-down mode of the AD7273/AD7274 when not
performing a conversion, the average power consumption of the
ADC decreases as the throughput rate decreases.
Figure 35 shows that as the throughput rate is reduced, the
device remains in its power-down state longer and the average
power consumption over time drops accordingly. For example,
if the AD7273/AD7274 are operated in continuous sampling
mode with a throughput rate of 200 kSPS and a SCLK of 48 MHz
(VDD = 3 V) and the devices are placed into power-down mode
between conversions, the power consumption is calculated as
follows. The power dissipation during normal operation is
11.6 mW (VDD = 3 V). If the power-up time is one dummy
cycle, that is, 333 ns, and the remaining conversion time is
290 ns, the AD7273/AD7274 can be said to dissipate 11.6 mW
for 623 ns during each conversion cycle. If the throughput rate
is 200 kSPS, the cycle time is 5 μs and the average power dissipated
during each cycle is 623/5,000 × 9.6 mW = 1.42 mW. Figure 35
shows the power vs. throughput rate when using the partial
power-down mode between conversions at 3 V. The power-
down mode is intended for use with throughput rates of less
than 600 kSPS, because at higher sampling rates there is no
power saving achieved by using the power-down mode.
04973-034
THROUGHPUT (kSPS)
P
O
WE
R
(mW)
3.40
3.80
4.20
4.60
5.00
5.40
5.80
6.20
6.60
7.00
200
400
600
800
1000
1200
1400
1600
1800
2000
VDD = 3V
48MHz SCLK
VARIABLE SCLK
Figure 34. Power vs. Throughput, Normal Mode
04973-035
THROUGHPUT (kSPS)
P
O
WE
R
(mW)
0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
4.4
4.8
5.2
5.6
6.0
6.4
6.8
7.2
0
200
400
600
800
1000
VDD = 3V
Figure 35. Power vs. Throughput, Partial Power-Down Mode
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7273BRMZ2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT |
| AD7273BRMZ-REEL | 功能描述:IC ADC 10BIT 3MSPS HS LP 8MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| AD7273BRMZ-REEL2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT |
| AD7273BUJ-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:3MSPS,10-/12-Bit ADCs in 8-Lead TSOT |
| AD7273BUJ-REEL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT |
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