- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄352487 > AD7946BCPRL7 (ANALOG DEVICES INC) 14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN PDF資料下載
參數(shù)資料
| 型號： | AD7946BCPRL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN |
| 中文描述： | 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10 |
| 封裝： | 3 X 3 MM, QFN-10 |
| 文件頁數(shù)： | 8/27頁 |
| 文件大?。?/td> | 301K |
| 代理商： | AD7946BCPRL7 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
AD7946
Preliminary Technical Data
Rev Pr D | Page 16 of 27
Power Supply
The AD7946 is specified 4.5 V to 5.5 V. It uses two power
supply pins: a core supply VDD and a digital input/output
interface supply VIO. VIO allows direct interface with any logic
between 1.8 V and VDD. To reduce the supplies needed, the
VIO and VDD can be tied together. The AD7946 is
independent of power supply sequencing between VIO and
VDD. Additionally, it is very insensitive to power supply
variations over a wide frequency range, as shown in Figure 26,
which represents PSRR over frequency.
Figure 26. PSRR vs. Frequency
The AD7946 powers down automatically at the end of each
conversion phase and, therefore, the power scales linearly with
the sampling rate as shown in see Figure 27. This makes the
part ideal for low sampling rate (even a few Hz) and low
battery-powered applications.
Figure 27. Operating Currents vs. Sampling Rate
Supplying the ADC from the Reference
For simplified applications, the AD7946, with its low operating
current, can be supplied directly using the reference circuit, as
shown in Figure 28. The reference line can be driven by either:
The system power supply directly
A reference voltage with enough current output
capability, such as the ADR43x
A reference buffer, such as the AD8031, that can also
filter the system power supply, as shown in Figure 28.
AD8031
AD7946
VIO
REF
VDD
10
F
1
F
10
10k
5V
1
F
(NOTE 1)
NOTE 1: OPTIONAL REFERENCE BUFFER AND FILTER
Figure 28. Example of Application Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD574AK | Complete 12-Bit A/D Converter |
| AD574AL | Complete 12-Bit A/D Converter |
| AD574ALD | Complete 12-Bit A/D Converter |
| AD574ALN | Complete 12-Bit A/D Converter |
| AD574ASD | Complete 12-Bit A/D Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7946BCPWP | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN |
| AD7946BCPZRL | 功能描述:IC ADC 14BIT 500KSPS 10-LFCSP RoHS:是 類別: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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7946BCPZRL7 | 功能描述:IC ADC 14BIT 500KSPS 10-LFCSP RoHS:是 類別: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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7946BRM | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| AD7946BRMRL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。