參數(shù)資料
型號： THS5671AIDWRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 14-BIT DAC, PDSO28
封裝： GREEN, PLASTIC, SOIC-28
文件頁數(shù)： 9/31頁
文件大?。?/td> 817K
代理商： THS5671AIDWRG4
THS5671A
14-BIT, 125 MSPS, CommsDAC
DIGITAL-TO-ANALOG CONVERTER
SLAS201A – DECEMBER 1999 – REVISED SEPTEMBER 2002
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
DAC transfer function
The THS5671A delivers complementary output currents IOUT1 and IOUT2. Output current IOUT1 equals the
approximate full-scale output current when all input bits are set high in mode 0 (straight binary input), i.e. the
binary input word has the decimal representation 16383. For mode 1, the MSB is inverted (twos complement
input format). Full-scale output current will flow through terminal IOUT2 when all input bits are set low (mode
0, straight binary input). The relation between IOUT1 and IOUT2 can thus be expressed as:
IOUT1
+ IOUT
FS * IOUT2
where IOUTFS is the full-scale output current. The output currents can be expressed as:
IOUT1
+ IOUT
FS
CODE
16384
IOUT2
+ IOUT
FS
(16383
* CODE)
16384
where CODE is the decimal representation of the DAC data input word. Output currents IOUT1 and IOUT2 drive
resistor loads RLOAD or a transformer with equivalent input load resistance RLOAD. This would translate into
single-ended voltages VOUT1 and VOUT2 at terminal IOUT1 and IOUT2, respectively, of:
VOUT1
+ IOUT1
R
LOAD +
CODE
16384
IOUT
FS
R
LOAD
VOUT2
+ IOUT2
R
LOAD +
(16383–CODE)
16384
IOUT
FS
R
LOAD
The differential output voltage VOUTDIFF can thus be expressed as:
VOUT
DIFF + VOUT1–VOUT2 +
(2CODE–16383)
16384
IOUT
FS
R
LOAD
The latter equation shows that applying the differential output will result in doubling of the signal power delivered
to the load. Since the output currents of IOUT1 and IOUT2 are complementary, they become additive when
processed differentially. Care should be taken not to exceed the compliance voltages at node IOUT1 and
IOUT2, which would lead to increased signal distortion.
相關(guān)PDF資料
PDF描述
THS5671AIPW PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 14-BIT DAC, PDSO28
THS5671AIDWR PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 14-BIT DAC, PDSO28
THS5671AIPWR PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 14-BIT DAC, PDSO28
THS5671AIDWG4 PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 14-BIT DAC, PDSO28
THS5671AIPWRG4 PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 14-BIT DAC, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS5671AIPW 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 125 MSPS CommsDAC 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
THS5671AIPW 制造商:Texas Instruments 功能描述:IC 14-BIT 125 MSPS D/A 28-TSSOP
THS5671AIPWG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 125 MSPS CommsDAC 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
THS5671AIPWR 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 125 MSPS CommsDAC 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
THS5671AIPWRG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 125 MSPS CommsDAC 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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