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參數資料
| 型號： | AD7628KN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | CMOS Dual 8-Bit Buffered Multiplying DAC |
| 中文描述： | DUAL, PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-20 |
| 文件頁數： | 7/8頁 |
| 文件大小： | 193K |
| 代理商： | AD7628KN |
AD7628
–7–
REV. A
MICROPROCE SSOR INT E RFACE
Figure 11. AD7628 Dual DAC to 6800 CPU Interface
PROGRAMMABLE WINDOW COMPARAT OR
Figure 13. Digitally Programmable Window Comparator
(Upper and Lower Limit Detector)
PROGRAMMABLE ST AT E VARIABLE FILT E R
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, f
C
. DACs A2 and B2 must track accurately for the simple
expression for f
C
to hold. T his is readily accomplished by the
AD7628. Op amps are 2
×
AD644. C3 compensates for the
effects of op amp gain-bandwidth limitations.
T he 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 f
C
= 0 kHz
to 15 kHz and Q = 0.3 to 4.5.
Figure 14. Digitally Controlled State Variable Filter
CIRCUIT E QUAT IONS
C
1
= C
2
, R
1
= R
2
, R
4
= R
5
f
C
=
1
2
π
R
1
C
1
Q =
R
3
R
4
.
R
F
R
FBB
1
A
O
= –
R
F
R
S
NOT E
DAC equivalent resistance equals
(
DAC Digital Code
256
×
DAC Ladder resistance
)
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相關代理商/技術參數 |
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| AD7628KNZ | 功能描述:IC DAC 8BIT DUAL MULTIPLY 20-DIP 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) |
| 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）:* |
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