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參數資料
| 型號： | THS5641IDW |
| 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： | PLASTIC, SOIC-28 |
| 文件頁數： | 10/29頁 |
| 文件大小： | 725K |
| 代理商： | THS5641IDW |
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THS5641
8-BIT, 100 MSPS, CommsDAC
DIGITAL-TO-ANALOG CONVERTER
SLAS199A – MAY 1999 REVISED JUNE 1999
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
IOUT2
IOUT1
IOUT2
IOUT1
VOUT
100
–
+
RFB
+)
–)
VOUT
+)
–)
50
(a)
(b)
50
CFB
THS4001
THS4011
Figure 27. Differential and Single-Ended Output Configuration
The THS5641 can be easily configured to drive a doubly terminated 50
cable. Figure 28(a) shows the
single-ended output configuration, where the output current IOUT1 flows into an equivalent load resistance of
25
. Node IOUT2 should be connected to ground or terminated with a resistor of 25 . Differential-to-single
conversion (e.g., for measurement purposes) can be performed using a properly selected RF transformer, as
shown in Figure 28(b). This configuration provides maximum rejection of common-mode noise sources and
even order distortion components, thereby doubling the power to the output. The center tap on the primary side
of the transformer is connected to AGND, enabling a dc current flow for both IOUT1 and IOUT2. Note that the
ac performance of the THS5641 is optimum using this differential transformer coupled output, limiting the
voltage swing at IOUT1 and IOUT2 to
±0.5 V.
IOUT2
IOUT1
VOUT
IOUT2
IOUT1
VOUT
50
100
(a)
(b)
25
50
50
50
50
1:1
Figure 28. Driving a Doubly Terminated 50
Cable
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| THS5651AIDW | PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 10-BIT DAC, PDSO28 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS5641IPW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| THS5641PW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| THS5651 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| THS5651A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 125 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| THS5651ADW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 125 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
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