參數資料
型號: AD7628KNZ
廠商: Analog Devices Inc
文件頁數: 7/8頁
文件大?。?/td> 0K
描述: IC DAC 8BIT DUAL MULTIPLY 20-DIP
產品培訓模塊: Data Converter Fundamentals
DAC Architectures
標準包裝: 18
設置時間: 400ns
位數: 8
轉換器數目: 2
電壓電源: 單電源
功率耗散(最大): 450mW
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 20-DIP(0.300",7.62mm)
供應商設備封裝: 20-PDIP
包裝: 管件
輸出數目和類型: 2 電流,單極;2 電流,雙極
采樣率(每秒): 2.9M
產品目錄頁面: 785 (CN2011-ZH PDF)
AD7628
–7–
REV. A
MICROPROCESSOR INTERFACE
Figure 11. AD7628 Dual DAC to 6800 CPU Interface
PROGRAMMABLE WINDOW COMPARATOR
Figure 13. Digitally Programmable Window Comparator
(Upper and Lower Limit Detector)
PROGRAMMABLE STATE VARIABLE FILTER
Figure 12. AD7628 Dual DAC to 8085 CPU Interface
In the circuit of Figure 13, the AD7628 is used to implement a
programmable window comparator. DACs A and B are loaded
with the required upper and lower voltage limits for the test,
respectively. If the test input is not within the programmed lim-
its, the pass/fail output will indicate a fail (logic zero).
In this state, variable or universal filter configuration (Figure
14) for DACs A1 and B1 control the gain and Q of the filter
characteristic, while DACs A2 and B2 control the cutoff fre-
quency, fC. DACs A2 and B2 must track accurately for the simple
expression for fC to hold. This is readily accomplished by the
AD7628. Op amps are 2
× AD644. C3 compensates for the
effects of op amp gain-bandwidth limitations.
The filter provides low pass, high pass and band pass outputs
and is ideally suited for applications where microprocessor con-
trol of filter parameters is required, e.g., equalizer, tone con-
trols, etc.
Programmable range for component values shown is fC = 0 kHz
to 15 kHz and Q = 0.3 to 4.5.
Figure 14. Digitally Controlled State Variable Filter
CIRCUIT EQUATIONS
C1 = C2, R1 = R2, R4 = R5
fC =
1
2
π R
1 C1
Q =
R
3
R
4
.
R
F
R
FBB1
AO = –
R
F
R
S
NOTE
DAC equivalent resistance equals
256
× DAC Ladder resistance
()
DAC Digital Code
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AD7628KNZ 制造商:Analog Devices 功能描述:CMOS DUAL 8 BIT D/A CONVE 制造商:Analog Devices 功能描述:IC, DAC, 8BIT, 2.9MSPS, DIP-20
AD7628KP 功能描述:IC DAC 8BIT DUAL W/BUFF 20-PLCC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 標準包裝:2,400 系列:- 設置時間:- 位數:18 數據接口:串行 轉換器數目:3 電壓電源:模擬和數字 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) 輸出數目和類型:* 采樣率(每秒):*
AD7628KP/+ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Digital-to-Analog Converter
AD7628KP-REEL 功能描述:IC DAC 8BIT DUAL W/BUFF 20-PLCC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標準包裝:91 系列:- 設置時間:4µs 位數:10 數據接口:MICROWIRE?,串行,SPI? 轉換器數目:8 電壓電源:單電源 功率耗散(最大):2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-DFN-EP(4x3) 包裝:管件 輸出數目和類型:8 電壓,單極 采樣率(每秒):*
AD7628KPZ 功能描述:IC DAC 8BIT DUAL MULTIPLY 20PLCC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 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:12 數據接口:串行 轉換器數目: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 輸出數目和類型:2 電壓,單極 采樣率(每秒):* 產品目錄頁面:1398 (CN2011-ZH PDF)