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參數(shù)資料
型號(hào): TLC7225IDWG4
廠(chǎng)商: TEXAS INSTRUMENTS INC
元件分類(lèi): DAC
英文描述: PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDSO24
封裝: 0.300 INCH, GREEN, SOIC-24
文件頁(yè)數(shù): 8/22頁(yè)
文件大小: 331K
代理商: TLC7225IDWG4
TLC7225C, TLC7225I
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
digital word multiplication
Since each DAC of the TLC7225 has a separate reference input, the output of one DAC can be used as the
reference input for another. Therefore, multiplication of digital words can be performed (with the result given in
analog form). For example, when the output from DAC A is applied to REFB then the output from DAC B, VOUTB,
can be expressed as given in equation 2:
VOUTB = (DA) (DB)(VREFA)
(2)
where DA and DB are the fractional representations of the digital words in DAC latches A and B respectively.
If DA = DB = D then the result is D2 (VREFA)
In this manner, the four DACs can be used on their own or in conjunction with an external summing amplifier
to generate complex waveforms. Figure 13 shows one such application with the output waveform, Y, which is
represented by equation 3:
Y = –(x4 + 2x3 + 3x2 + 2x + 4) VI
(3)
where x is the digital code that is applied to all four DAC latches.
_
+
REFA
REFB
REFC
REFD
OUTA
OUTB
OUTC
OUTD
AGND
DGND
VSS
15 V
Y
TLC7225
VI
Digital inputs omitted for clarity
100 k
50 k
33 k
50 k
25 k
100 k
VDD
Figure 13. Complex-Waveform Generation
相關(guān)PDF資料
PDF描述
TLC7225CDWR PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDSO24
TLC7225CDWG4 PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDSO24
TLC7226EDWR QUAD, PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDSO20
TLC7226EDW QUAD, PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDSO20
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC7225IDWR 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 5 us Quad DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
TLC7225IDWRG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 5 us Quad DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
TLC7226C 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
TLC7226C_07 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
TLC7226CD 制造商:Texas Instruments 功能描述:
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