參數(shù)資料
型號(hào)： AD7886JP
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT SAMPLING HS 28-PLCC
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 12
采樣率（每秒）： 1M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 350mW
電壓電源： 雙 ±
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 28-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 28-PLCC（11.51x11.51）
包裝： 管件
輸入數(shù)目和類型： 2 個(gè)單端，單極；2 個(gè)單端，雙極
AD7886
–11–
REV. B
TIMER
DMA0
DMA13
IRQn
DMD15
DMD0
DMS
ADDRESS BUS
DATA BUS
CONVST
CS
DB11
DB0
RD
BUSY
AD7886*
ADSP-2100
*ADDITIONAL PINS OMITTED FOR CLARITY
D
Q
CLK
CLR
74HC74
DMACK
CLK
OUT
DMRD
EN
ADDR
ENCODE
5V
+
Figure 17. AD7886–ADSP-2100 Interface
ADDR
ENCODE
ADDRESS BUS
TMS320C25
CONVST
CS
AD7886*
TIMER
D15
D0
DATA BUS
DB11
DB0
INT
BUSY
RD
A0
A15
MSC
READY
IS
EN
G2
R/W
STRB
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 18. AD7886–TMS320C25 Interface
EN2
ADDR
ENCODE
ADDRESS BUS
DSP56000
D23
D0
DATA BUS
CONVST
CS
DB11
DB0
AD7886*
TIMER
IRQ
RD
A0
A15
DS
EN1
X/Y
BUSY
2X
74HC374
D11
D0
Q11
Q0
CLK
OE
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 19. AD7886–DSP56000 Interface
AD7886–MC68000
Applications requiring conversions to be initiated by the micro-
processor rather than an external timer may decode a
CONVST
signal from the address bus. An example is given in Figure 20
with the MC68000 processor. A write instruction starts conver-
sion while a read instruction reads the data when conversion is
complete. A delay at least as long as the ADC conversion time
must be allowed between initiating a conversion and reading the
ADC data into the processor. In Figure 20,
BUSY is used to
drive the processor into a WAIT state if the processor attempts
to read data before conversion is complete.
Conversion is initiated with a write instruction to the ADC:
Move.W D0,ADC
(ADC = ADC address)
Data is transferred to the processor with a read instruction;
BUSY will force the processor to WAIT for the end of conver-
sion if a conversion is in progress.
Move.W ADC,DO
(ADC = ADC address)
A0
A15
D11
D0
ADDR
ENCODE
ADDRESS BUS
DATA BUS
CONVST
CS
DB11
DB0
RD
BUSY
AD7886*
MC68000
*ADDITIONAL PINS OMITTED FOR CLARITY
R/W
EN
DTACK
AS
Figure 20. AD7886–MC68000 Interface
AD7886–Z-80/8085A
For 8-bit processors, an external latch is required to store four
bits of the conversion result (4 LSBs in Figure 21). The data is
then read in two bytes: one read from the ADC and a second
from the latch.
Figure 21 shows a typical interface suitable for the Z-80 or the
8085A. Not shown in the Figure is the 8-bit latch needed to
demultiplex the 8085A common address/data bus. The follow-
ing LOAD instruction reads the conversion result into the HL
register pair:
For the 8085A–LHLD
(ADC) (ADC = ADC address)
For the Z-80–LDHL
(ADC) (ADC = ADC address)
This is a two byte read instruction. The first byte to be read has
to be the high byte (DB11 to DB4). At the end of the first read
operation, the rising edge of
CS and RD clocks the 4 LSBs into
74HC374 latches. The second byte (4 LSBs) is then read from
these latches.
相關(guān)PDF資料
PDF描述
IDT72821L10PFG8 IC FIFO SYNC 1KX9 10NS 64QFP
LTC1688CS IC DVR 100MBPS RS485 QUAD 16SOIC
LTC2172CUKG-14#TRPBF IC ADC 14BIT SER/PAR 65M 52-QFN
D38999/26FB98PE CONN PLUG 6POS STRAIGHT W/PINS
LTC1349ISW IC TXRX 5V RS232 LOW PWR 28-SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7886JP-REEL 功能描述:IC ADC 12BIT SAMPLING HS 28-PLCC RoHS:否 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 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極
AD7886KP-REEL 制造商:Analog Devices 功能描述:
AD7887AR 功能描述:IC ADC 12BIT 2CH SRL 8-SOIC RoHS:否 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):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極
AD7887ARM 功能描述:IC ADC 12BIT 2CH SRL 8-MSOP RoHS:否 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):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極
AD7887ARM-REEL 制造商:Analog Devices 功能描述:ADC Single SAR 125ksps 12-bit Serial 8-Pin MSOP T/R
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*