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| 型號： | AD7946BRMRL7 |
| 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： | MO-187-BA, MSOP-10 |
| 文件頁數(shù)： | 25/27頁 |
| 文件大?。?/td> | 301K |
| 代理商： | AD7946BRMRL7 |
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Preliminary Technical Data
AD7946
Rev Pr D | Page 7 of 27
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD7946
REF
1
VDD
2
IN+
3
IN–
4
GND
5
VIO
10
SDI
9
SCK
8
SDO
7
CNV
6
Figure 4.10-Lead MSOP and QFN (LFCSP) Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
Type1
Function
1
REF
AI
Reference Input Voltage. The REF range is from 0.5 V to VDD. It is referred to the GND pin. This pin should
be decoupled closely to the pin with a 10 F capacitor.
2
VDD
P
Power Supply.
3
IN+
AI
Analog Input. It is referred to in IN. The voltage range, i.e., the difference between IN+ and IN, is 0 V to
VREF.
4
IN
AI
Analog Input Ground Sense. To be connected to the analog ground plane or to a remote sense ground.
5
GND
P
Power Supply Ground.
6
CNV
DI
Convert Input. This input has multiple functions. On its leading edge, it initiates the conversions and
selects the interface mode of the part, chain or CS mode. In CS mode, it enables the SDO pin when low. In
chain mode, the data should be read when CNV is high.
7
SDO
DO
Serial Data Output. The conversion result is output on this pin. It is synchronized to SCK.
8
SCK
DI
Serial Data Clock Input. When the part is selected, the conversion result is shifted out by this clock.
9
SDI
DI
Serial Data Input. This input provides multiple features. It selects the interface mode of the ADC as follows:
Chain mode is selected if SDI is low during the CNV rising edge. In this mode, SDI is used as a data input to
daisy chain the conversion results of two or more ADCs onto a single SDO line. The digital data level on
SDI is output on SDO with a delay of 14 SCK cycles.
CS mode is selected if SDI is high during the CNV rising edge. In this mode, either SDI or CNV can enable
the serial output signals when low, and if SDI or CNV is low when the conversion is complete, the BUSY
indicator feature is enabled.
10
VIO
P
Input/Output Interface Digital Power. Nominally at the same supply as the host interface (1.8 V, 2.5 V, 3 V,
or 5 V).
1AI = Analog Input, DI = Digital Input, DO = Digital Output, and P = Power
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| AD7946BRM-RL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 500ksps 14-bit Serial 10-Pin MSOP T/R |
| AD7946BRMZ | 功能描述:IC ADC 14BIT 500KSPS SAR 10-MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:PulSAR® 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7946BRMZRL7 | 功能描述:IC ADC 14BIT 500KSPS 10-MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:PulSAR® 標準包裝: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） 供應商設備封裝: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 |
| AD7947 | 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 |
| AD7947BCP | 制造商:Analog Devices 功能描述:ADC SGL SAR 500KSPS 14BIT SERL 10LFCSP - Bulk |
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