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參數資料
| 型號： | THS5641AIPWRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28 |
| 封裝： | GREEN, PLASTIC, TSSOP-28 |
| 文件頁數： | 7/31頁 |
| 文件大小： | 915K |
| 代理商： | THS5641AIPWRG4 |
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THS5641A
8BIT, 100 MSPS, CommsDAC
DIGITALTOANALOG CONVERTER
SLAS277A MARCH 2000 REVISED SEPTEMBER 2002
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
DAC transfer function
The THS5641A 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 255. 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
256
IOUT2
+ IOUT
FS
(255
* CODE)
256
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
256
IOUT
FS
R
LOAD
VOUT2
+ IOUT2
R
LOAD +
(255–CODE)
256
IOUT
FS
R
LOAD
The differential output voltage VOUTDIFF can thus be expressed as:
VOUT
DIFF + VOUT1–VOUT2 +
(2CODE–255)
256
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PDF資料 |
PDF描述 |
|---|---|
| THS5641AIDWR | PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28 |
| THS5641IDWR | PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28 |
| THS5641IDW | PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28 |
| THS5641IPW | PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28 |
| THS5641IPWR | PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| THS5641APW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| THS5641DW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| THS5641EVM | 功能描述:數據轉換 IC 開發工具 THS5641 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| THS5641IDW | 功能描述:IC 8-BIT 100MSPS D/A 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:CommsDAC™ 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:3,000 系列:nanoDAC™ 設置時間:80µs 位數:18 數據接口:DSP，MICROWIRE?，QSPI?，串行，SPI? 轉換器數目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極 采樣率（每秒）:- 產品目錄頁面:784 (CN2011-ZH PDF) 配用:EVAL-AD5680EBZ-ND - BOARD EVAL FOR AD5680 其它名稱:AD5680BRJZ-2REEL7TR |
| THS5641IPW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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