參數(shù)資料
型號(hào): ISO806
廠商: Texas Instruments, Inc.
英文描述: Isolated 12-Bit Sampling Analog-To-Digital Converter(隔離的12位采樣A\D轉(zhuǎn)換器)
中文描述: 隔離12位采樣模擬到數(shù)字轉(zhuǎn)換器(隔離的12位采樣阿\\?轉(zhuǎn)換器)
文件頁(yè)數(shù): 11/12頁(yè)
文件大?。?/td> 201K
代理商: ISO806
11
ISO806
SIGNAL CONDITIONING
The FET switches used for the sample hold on many CMOS
A/D converters release a significant amount of charge injec-
tion which can cause the driving op amp to oscillate. The
amount of charge injection due to the sampling FET switch
on the ISO806 is approximately 5-10% of the amount on
similar ADCs with the charge redistribution DAC (CDAC)
architecture. There is also a resistive front end which attenu-
ates any charge which is released. The end result is a
FIGURE 4. Typical Transfer Functions With and Without External Resistors.
Digital Output
(b) Unipolar
–Full Scale
+Full Scale
Analog Input
Digital Output
(a) Bipolar
–Full Scale
+Full Scale
Analog Input
Typical Transfer Functions
With External Resistors
Typical Transfer Functions
Without External Resistors
minimal requirement for the drive capability on the signal
conditioning preceding the A/D. Any op amp sufficient for
the signal in an application will be sufficient to drive the
ISO806.
The resistive front end of the ISO806 also provides a
guaranteed
±
25V overvoltage protection. In most cases, this
eliminates the need for external over voltage protection
circuitry.
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ISO806P 制造商:BB 制造商全稱:BB 功能描述:Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ISO807 制造商:BB 制造商全稱:BB 功能描述:Isolated 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
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ISO808 制造商:BB 制造商全稱:BB 功能描述:Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ISO808P 制造商:BB 制造商全稱:BB 功能描述:Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER