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參數(shù)資料
| 型號： | AD7885 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | LC2MOS 16-Bit, High Speed Sampling ADCs |
| 中文描述： | LC2MOS 16位，高速采樣ADC |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 319K |
| 代理商： | AD7885 |
AD7884/AD7885
REV. C
–12–
T he second way is to use the
BUSY
output of the AD7884 to
generate an interrupt in the MC68000. Because of the nature of
its interrupts, the MC68000 requires additional logic (not
shown in Figure 18) to allow it to be interrupted correctly. For
full information on this, consult the MC68000 User’s Manual.
AD7884 to 80286 Interface
T he 80286 is an advanced high performance processor with spe-
cial capabilities aimed at multiuser and multitasking systems.
Figure 19 shows an interface configuration for the AD7884 to
such a system. Note that only signals relevant to the AD7884
are shown. For the full 80286 configuration refer to the iAPX
286 data sheet (Basic System Configuration).
In Figure 19 conversion is started by writing to a selected ad-
dress and causing it
CS2
to go low. When conversion is com-
plete,
BUSY
goes high and initiates an interrupt. T he processor
can then read the conversion result.
82288 BUS
CONTROLLER
MRDC
CLK
82284 CLOCK
GENERATOR
CLK
8282 OR
8283
LATCH
8286 OR 8287
TRANSCEIVER
DECODE
CIRCUITRY
CS1
CS2
8259A
INTERRUPT
CONTROLLER
CLK
80286
CPU
D – D
0
A – A
0
AD7884
RD
CS
CONVST
DB15
DB0
BUSY
IR – IR
7
MEMORY READ
Figure 19. AD7884 Interfacing to Basic iAPX 286 System
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7885AAP | LC2MOS 16-Bit, High Speed Sampling ADCs |
| AD7885ABP | LC2MOS 16-Bit, High Speed Sampling ADCs |
| AD7885AN | LC2MOS 16-Bit, High Speed Sampling ADCs |
| AD7885BN | LC2MOS 16-Bit, High Speed Sampling ADCs |
| AD7886JP | LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7885AAP | 制造商:Analog Devices 功能描述:16-Bit, High Speed Sampling ADCs |
| ad7885aap-reel | 制造商:Analog Devices 功能描述: |
| AD7885ABP | 制造商:Rochester Electronics LLC 功能描述:16-BIT,BYTE O/P SAMPL.A/D - Bulk 制造商:Analog Devices 功能描述: |
| AD7885ABP-REEL | 制造商:Analog Devices 功能描述: |
| AD7885AQ | 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:IC 16-BIT ADC |
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