- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376564 > DAC8512EP (ANALOG DEVICES INC) % V, Serial Input Complete 12-Bit DAC PDF資料下載
參數(shù)資料
| 型號： | DAC8512EP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | % V, Serial Input Complete 12-Bit DAC |
| 中文描述： | SERIAL INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, PDIP8 |
| 封裝： | MINI, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 757K |
| 代理商： | DAC8512EP |
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PDF資料 |
PDF描述 |
|---|---|
| DAC8512FP | % V, Serial Input Complete 12-Bit DAC |
| DAC8512FS | % V, Serial Input Complete 12-Bit DAC |
| DAC8512GBC | % V, Serial Input Complete 12-Bit DAC |
| DAC8516 | AES / EBU to Analog Audio Converter |
| DAC8531EVM | DAC8531 Evaluation Module(DAC8531評估板) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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)模轉換器 系列:- 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉換器數(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） 供應商設備封裝: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 |
| DAC8512FP | 功能描述:IC DAC 12BIT 5V COMPLETE 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 標準包裝:2,400 系列:- 設置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:* |
| DAC8512FPZ | 功能描述:IC DAC 12BIT 5V COMPLETE 8-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產品目錄頁面:1398 (CN2011-ZH PDF) |
| DAC8512FS | 功能描述:IC DAC 12BIT 5V COMPLETE 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 標準包裝:47 系列:- 設置時間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
發(fā)布緊急采購，3分鐘左右您將得到回復。