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| 型号： | DAC5652AIPFBRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | DUAL, PARALLEL, WORD INPUT LOADING, 0.02 us SETTLING TIME, 10-BIT DAC, PQFP48 |
| 封装： | GREEN, PLASTIC, TQFP-48 |
| 文件页数： | 8/25页 |
| 文件大小： | 511K |
| 代理商： | DAC5652AIPFBRG4 |
IOUT1
1:1
IOUT2
50
50
RLOAD
50
100
AGND
IOUT1
4:1
IOUT2
100
100
RLOAD
50
AGND
SLAS535B – SEPTEMBER 2007 – REVISED DECEMBER 2010
www.ti.com
The single-ended configuration may be considered for applications requiring a unipolar output voltage.
Connecting a resistor from either one of the outputs to ground converts the output current into a
ground-referenced voltage signal. To improve on the dc linearity by maintaining a virtual ground, an I-to-V or
op-amp configuration may be considered.
Differential With Transformer
Using an RF transformer provides a convenient way of converting the differential output signal into a
single-ended signal while achieving excellent dynamic performance. The appropriate transformer must be
carefully selected based on the output frequency spectrum and impedance requirements.
The differential transformer configuration has the benefit of significantly reducing common-mode signals, thus
improving the dynamic performance over a wide range of frequencies. Furthermore, by selecting a suitable
impedance ratio (winding ratio) the transformer can provide optimum impedance matching while controlling the
compliance voltage for the converter outputs.
doubly-terminated transformer configurations with 1:1 and 4:1 impedance
ratios, respectively. Note that the center tap of the primary input of the transformer has to be grounded to enable
a dc-current flow. Applying a 20-mA full-scale output current would lead to a 0.5-VPP output for a 1:1 transformer
and a 1-VPP output for a 4:1 transformer. In general, the 1:1 transformer configuration has a better output
distortion, but the 4:1 transformer has 6 dB higher output power.
Figure 18. Driving a Doubly-Terminated 50-
Cable Using a 1:1 Impedance Ratio Transformer
Figure 19. Driving a Doubly-Terminated 50-
Cable Using a 4:1 Impedance Ratio Transformer
16
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s): DAC5652A
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相关代理商/技术参数 |
参数描述 |
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| DAC5652-EP | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL 10-BIT 200-MSPS DIGITAL-TO-ANALOG CONVERTER |
| DAC5652EVM | 功能描述:数据转换 IC 开发工具 DAC5652 evaluation Module RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| DAC5652IPFB | 功能描述:数模转换器- DAC Dual 10bit 200MSPS RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC5652IPFBG4 | 功能描述:数模转换器- DAC Dual 10bit 200MSPS RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC5652IPFBR | 功能描述:数模转换器- DAC Dual 10bit 200MSPS RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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