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參數(shù)資料
| 型號： | AD7821KR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | LC2MOS High Speed, mP-Compatible 8-Bit ADC with Track/Hold Function |
| 中文描述： | 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDSO20 |
| 封裝： | MS-013AC, SOIC-20 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大小： | 249K |
| 代理商： | AD7821KR |
AD7821
REV. A
–12–
OUT LINE DIME NSIONS
Dimensions shown in inches and (mm).
20-Pin Plastic DIP (N-20)
20-Pin Cerdip (Q-20)
20-T erminal Plastic Leaded Chip Carrier
(P-20A)
20-T erminal Leadless Ceramic Chip Carrier
(E -20A)
C
P
SIMULT ANE OUS SAMPLING A/D CONVE RT E RS
T he AD7821’s inherent track-and-hold and well-defined sam-
pling instant makes it useful, in such applications as sonar,
where a number of input channels are required to be sampled
simultaneously. Figure 22 shows a circuit for such an applica-
tion.
Figure 22. Simultaneous Sampling A/D Converters
T he actual sampling instant, which is the instant at which V
IN
is
measured, occurs approximately 50 ns after the falling edge of
WR
or
RD
in the WR-RD or RD modes, respectively, due to in-
ternal logic delays. However, the internal logic delay and, there-
fore, the sampling instant can vary from device to device, but is
typically within
±
5 ns. T his means that a maximum common in-
put sine wave of
±
2.5 V at 32 kHz, applied to any number of
AD7821s in the circuit of Figure 22, will yield a maximum dif-
ference between the converter outputs of typically
±
1/4 LSB.
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7821KR-REEL | 制造商:Analog Devices 功能描述:ADC Single Semiflash 1Msps 8-bit Parallel 20-Pin SOIC W T/R |
| AD7821KRZ | 功能描述:IC ADC 8BIT HS TRACK/HOLD 20SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 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(zhuǎn)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(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7821KRZ | 制造商:Analog Devices 功能描述:IC, ADC, 8BIT, 1MHZ, SOIC-20 |
| AD7821KRZ-REEL | 功能描述:IC ADC 8BIT HS TRACK/HOLD 20SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝: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 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7821TE | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS High Speed, mP-Compatible 8-Bit ADC with Track/Hold Function |
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