- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375241 > AD7938BCP (ANALOG DEVICES INC) 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer PDF資料下載
參數(shù)資料
| 型號： | AD7938BCP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, QCC32 |
| 封裝： | MO-220-VHHD-2, LFCSP-32 |
| 文件頁數(shù)： | 30/32頁 |
| 文件大?。?/td> | 1332K |
| 代理商： | AD7938BCP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第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頁第28頁第29頁當(dāng)前第30頁第31頁第32頁
AD7938/AD7939
Preliminary Technical Data
slowed sufficiently when reading from and writing to the part to
require the insertion of one wait state. Extra wait states will be
necessary when using the TMS320C5x at their fastest clock
speeds (see the TMS320C5x User’s Guide for details).
Data is read from the ADC using the following instruction
IN D, ADC
where
D
is the data memory address and the
ADC
is the
AD7938/AD7939 address.
AD7938/
AD7939*
TMS32020/
TMS320C25/
TMS320C50*
WR
RD
DB11 TO DB0
DMD0 TO DMD15
A0 TO A15
IS
READY
INT
X
BUSY
CS
EN
CONVST
OPTIONAL
TMS320C25
ONLY
R/W
STRB
*ADDITIONAL PINS OMITTED FOR CLARITY
ADDRESS BUS
DATA BUS
ADDRESS
DECODER
0
MSC
Figure 47. Interfacing to the TMS32020/C25/C5x
AD7938/AD7939 to 80C186 Interface
Figure 48
shows the AD7938/AD7939 interfaced to the 80C186
microprocessor. The 80C186 DMA controller provides two
independent high speed DMA channels where data transfer can
occur between memory and I/O spaces. Each data transfer
consumes two bus cycles, one cycle to fetch data and the other
to store data. After the AD7938/AD7939 finish a conversion, the
BUSY line generates a DMA request to Channel 1 (DRQ1).
Because of the interrupt, the processor performs a DMA read
operation that also resets the interrupt latch. Sufficient priority
must be assigned to the DMA channel to ensure that the DMA
request is serviced before the completion of the next
conversion.
Figure 48. Interfacing to the 80C186
AD7938/
AD7939*
80C186*
WR
DB0 TO DB11
AD0 TO AD15
A16 TO A19
ALE
DRQ1
BUSY
CS
Q
R
S
CONVST
OPTIONAL
WR
RD
RD
*ADDITIONAL PINS OMITTED FOR CLARITY
ADDRESS/DATA BUS
ADDRESS BUS
DATA BUS
ADDRESS
LATCH
ADDRESS
DECODER
0
Rev. PrN | Page 30 of 32
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7938BSU | 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer |
| AD7939 | 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer |
| AD7939BCP | 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer |
| AD7939BSU | 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer |
| AD8001ART | 800 MHz 50 mW Current Feedback Amplifier(222.93 k) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7938BCP-6 | 制造商:Analog Devices 功能描述:ADC Single SAR 625ksps 12-bit Parallel 32-Pin LFCSP EP |
| AD7938BCP-6REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 625ksps 12-bit Parallel 32-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 625KSPS 12-BIT PARALLEL 32LFCSP EP - Tape and Reel |
| AD7938BCP-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 1.5Msps 12-bit Parallel 32-Pin LFCSP EP T/R |
| AD7938BCP-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 1.5Msps 12-bit Parallel 32-Pin LFCSP EP T/R |
| AD7938BCPZ | 功能描述:IC ADC 12BIT 8CH 1.5MSPS 32LFCSP 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(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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。