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參數(shù)資料
| 型號(hào)： | MC14549BCPG |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 7/9頁(yè) |
| 文件大小： | 0K |
| 描述： | IC REGISTER 8BIT APPROX 16-DIP |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 系列： | 4000B |
| 邏輯類型： | 逐次近似寄存器 |
| 輸出類型： | 標(biāo)準(zhǔn) |
| 元件數(shù)： | 1 |
| 每個(gè)元件的位元數(shù)： | 8 |
| 功能： | 通用 |
| 電源電壓： | 3 V ~ 18 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 16-DIP |
| 包裝： | 管件 |
MC14549B, MC14559B
http://onsemi.com
7
Q7 Q6 Q5
MR
SC
C
Sout
MC14549B
Q4 Q3 Q2 Q1 Q0 EOC
Sout
TO DAC
Q7 Q6 Q5
SC
CSout
MC14559B
Q4 Q3 Q2 Q1 Q0
EOC
TO DAC
FF
EOC
Figure 4. Continuously Cycling 12Bit ADC
Externally Controlled 12Bit ADC (Figure 5)
In this circuit the external pulse starts the first SAR and
simultaneously resets the cascaded second SAR. When Q4 of
the first SAR goes high, the second SAR starts conversion,
and the first one stops conversion. EOC indicates that the
parallel data are valid and that the serial output is complete.
Updating the output data is started with every external control
pulse.
Additional Motorola Parts for Successive
Approximation ADC
Monolithic digitaltoanalog converters — The
MC1408/1508 converter has eightbit resolution and is
available with 6, 7, and 8bit accuracy. The
amplifiercomparator block — The MC1407/1507
contains a high speed operational amplifier and a high speed
comparator with adjustable window.
With these two linear parts it is possible to construct
SAADCs with an accuracy of up to eight bits, using as the
register one MC14549B or one MC14559B. An additional
CMOS block will be necessary to generate the clock
frequency.
Additional information on successive approximation ADC
is found in Motorola Application Note AN716.
Figure 5. Externally Controlled 12Bit ADC
Q7 Q6 Q5
MR
SC
C
Sout
MC14549B
Q4 Q3 Q2 Q1 Q0 EOC
Sout
TO DAC
Q7 Q6 Q5
SC
CSout
MC14559B
Q4 Q3 Q2 Q1 Q0
EOC
TO DAC
FF
EOC
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC14549BDWR2 | 功能描述:寄存器 3-18V SAR RoHS:否 制造商:NXP Semiconductors 邏輯類型:CMOS 邏輯系列:HC 電路數(shù)量:1 最大時(shí)鐘頻率:36 MHz 傳播延遲時(shí)間: 高電平輸出電流:- 7.8 mA 低電平輸出電流:7.8 mA 電源電壓-最大:6 V 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-38 封裝:Tube |
| MC14549BDWR2G | 功能描述:寄存器 3-18V SAR RoHS:否 制造商:NXP Semiconductors 邏輯類型:CMOS 邏輯系列:HC 電路數(shù)量:1 最大時(shí)鐘頻率:36 MHz 傳播延遲時(shí)間: 高電平輸出電流:- 7.8 mA 低電平輸出電流:7.8 mA 電源電壓-最大:6 V 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-38 封裝:Tube |
| MC145502FNR2 | 制造商:Freescale Semiconductor 功能描述: |
| MC145502P | 制造商:Motorola Inc 功能描述: |
| MC145503DWR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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