- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378527 > DAC8512 (Analog Devices, Inc.) +5 V, Serial Input Complete 12-Bit DAC(串行輸入完備的12位D/A轉(zhuǎn)換器) PDF資料下載
參數(shù)資料
| 型號： | DAC8512 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | +5 V, Serial Input Complete 12-Bit DAC(串行輸入完備的12位D/A轉(zhuǎn)換器) |
| 中文描述： | 5伏，串行輸入完整的12位DAC（串行輸入完備的12位的D / A轉(zhuǎn)換器） |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 771K |
| 代理商： | DAC8512 |
DAC8512
–13–
REV. A
Opto-Isolated Interfaces for Process Control Environments
In many process control type applications, it is necessary to pro-
vide an isolation barrier between the controller and the unit be-
ing controlled. Opto-isolators can provide isolation in excess of
3 kV. The serial loading structure of the DAC8512 makes it
ideal for opto-isolated interfaces as the number of interface lines
is kept to a minimum.
Illustrated in Figure 34 is an opto-isolated interface using the
DAC8512. In this circuit, the
CS
line is always LOW to enable
the DAC, and the 10 k
/1
μ
F combination connected to the
DAC’s
CLR
pin sets a turn-on time constant of 10 ms to reset
the DAC upon application of power. Three opto-couplers are
then used for the SDI, SCLK, and
LD
lines.
Often times reducing the number of interface lines to two lines
is required in many control environments. The circuit illustrated
in Figure 35 shows how to convert a two-line interface into the
three control lines required to control the DAC8512 without us-
ing one shots. This technique uses a counter to keep track of the
clock cycles and, when all the data has been input to the DAC,
the external logic generates the
LD
pulse.
0.1
μ
F
+5V
5
6
8
DAC8512
1
CS
3
4
7
2
0.1
μ
F
10k
+5V
VOUT
+5V
+5V
+5V
10k
SCLK
10k
10k
LD
LD
SCLK
SDI
+5V
+5V
POWER
HIGH VOLTAGE
Figure 34. An Opto-Isolated DAC Interface
+5V
+5V
10k
10k
SCLK
SDI
+5V
REG
+5V
POWER
HIGH VOLTAGE
74HC161
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CLR
CLK
A
B
C
D
ENP
GND
V
CC
RCO
Q
A
Q
B
Q
C
Q
D
ENT
LOAD
+5V
10k
NC
NC
NC
0.1
μ
F
+5V
+5V
10k
X
1
2
3
Y
4
5
6
1/4 74HCOO
1/4 74HCOO
V
DD
0.1
μ
F
3
5
8
DAC8512
1
+5V
4
LD
SCLK
SDI
7
6
CLR
GND
V
OUT
CS
2
+5V
10k
1
μ
F
Figure 35. A Two-Wire, Opto-lsolated DAC Interface
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DAC8562 | +5 V,Parallel Input Complete 12-Bit DAC(并行輸入完備的12位D/A轉(zhuǎn)換器) |
| DAC8841 | 8 BIT OCTAL 2-QUADRANT MULTIPLYING CMOS TRIM DAC |
| DAC902 | 12-Bit, 165MSPS DIGITAL-TO-ANALOG CONVERTER |
| DAC902E | 12-Bit, 165MSPS DIGITAL-TO-ANALOG CONVERTER |
| DAC902U | 12-Bit, 165MSPS DIGITAL-TO-ANALOG CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC8512002S | 制造商:Analog Devices 功能描述: |
| DAC8512-002S | 制造商:Analog Devices 功能描述: |
| DAC8512EP | 功能描述:IC DAC 12BIT SRL LP 5V 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 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:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| DAC8512EPZ | 功能描述:IC DAC 12BIT SRL LP 5V 8DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 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:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| DAC8512EZ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。