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參數(shù)資料

型號(hào)：	TLC5620CN
廠商：	TEXAS INSTRUMENTS INC
元件分類：	DAC
英文描述：	SERIAL INPUT LOADING, 10 us SETTLING TIME, 8-BIT DAC, PDIP14
封裝：	ROHS COMPLIANT, PLASTIC, DIP-14
文件頁(yè)數(shù)：	13/17頁(yè)
文件大小：	389K
代理商：	TLC5620CN

TLC5620C, TLC5620I

QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS081E – NOVEMBER 1994 – REVISED NOVEMBER 2001

POST OFFICE BOX 655303

DALLAS, TEXAS 75265

linearity, offset, and gain error using single-end supplies

When an amplifier is operated from a single supply, the voltage offset can still be either positive or negative. With

a positive offset voltage, the output voltage changes on the first code change. With a negative offset the output

voltage may not change with the first code depending on the magnitude of the offset voltage.

The output amplifier attempts to drive the output to a negative voltage. However, because the most negative

supply rail is ground, the output cannot drive below ground and clamps the output at 0 V.

The output voltage then remains at zero until the input code value produces a sufficient positive output voltage

to overcome the negative offset voltage, resulting in the transfer function shown in Figure 5.

DAC Code

Output

Voltage

0 V

Negative

Offset

Figure 5. Effect of Negative Offset (Single Supply)

This offset error, not the linearity error, produces this breakpoint. The transfer function would have followed the

dotted line if the output buffer could drive below ground.

For a DAC, linearity is measured between zero-input code (all inputs 0) and full-scale code (all inputs 1) after

offset and full scale are adjusted out or accounted for in some way. However, single-supply operation does not

allow for adjustment when the offset is negative due to the breakpoint in the transfer function. So the linearity

is measured between full-scale code and the lowest code that produces a positive output voltage. The code is

calculated from the maximum specification for the negative offset voltage.

相關(guān)PDF資料	PDF描述
TLC5620CDR	SERIAL INPUT LOADING, 10 us SETTLING TIME, 8-BIT DAC, PDSO14
TLC5620IDR	SERIAL INPUT LOADING, 10 us SETTLING TIME, 8-BIT DAC, PDSO14
TLC5620CDG4	SERIAL INPUT LOADING, 10 us SETTLING TIME, 8-BIT DAC, PDSO14
TLC5620CDRG4	SERIAL INPUT LOADING, 10 us SETTLING TIME, 8-BIT DAC, PDSO14
TLC5620IN	SERIAL INPUT LOADING, 10 us SETTLING TIME, 8-BIT DAC, PDIP14

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
TLC5620CN	制造商:Texas Instruments 功能描述:SEMICONDUCTORSLINEAR ((NW))
TLC5620CNE4	功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 10us Quad DAC Serial Input 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
TLC5620I	制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
TLC5620ID	功能描述:數(shù)模轉(zhuǎn)換器- DAC Quad 8bit DigitAL/AN 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
TLC5620IDG4	功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 10us Quad DAC Serial Input 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

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