參數(shù)資料
型號(hào)： ADS5103EVM
廠商： Texas Instruments, Inc.
英文描述： 1.8-V ANALOG SUPPLY, 10-BIT, 65/40 MSPS ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE
中文描述： 1.8 - V模擬電源，10位，65/40 MSPS的模擬到數(shù)字的，具有內(nèi)部參考變換器
文件頁(yè)數(shù)： 11/23頁(yè)
文件大?。?/td> 334K
代理商： ADS5103EVM
ADS5102
ADS5103
SLAS351B – OCTOBER 2001 – REVISED DECEMBER 2001
19
www.ti.com
PRINCIPLES OF OPERATION
_
+
VO–
VO+
VOCM
THS4501
68 pF
49.9
49.9
AIN–
AIN+
CML
ADS5102,
ADS5103
750
750
374
374
Digital
Outputs
V(source)
0.001
F
0.1
F
Figure 31. Driving the ADS5102/3 With Differential Amp (Gain = 2)
driving the analog input with a transformer
When little or no signal conditioning is required, a simple transformer is an excellent way to drive the input of
the ADS5102/3 family. The transformer provides single-ended to differential conversion and at frequencies
under 200 MHz produces very little distortion of the incoming signal. Figure 32 shows the preferred circuit
diagram for implementing a transformer-coupled input. The signal source is ac-coupled and fed to the primary
side of the RF transformer. Since the ADC input must be biased to the correct common mode voltage, the CML
output of the ADC is connected to the secondary center tap. It is recommended to provide decoupling capacitors
of 0.1
F and 0.001 F on the CML output. This filters out any high frequency noise prior the ADC input.
AIN–
AIN+
ADS5102,
ADS5103
V(source)
0.1
F
0.001
F
T1 – 1T-KK81
Mini-Circuits
49.9
0.1
F
Digital
Outputs
CML
Figure 32. Driving the ADS5102/3 With a Transformer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS5103IPFB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40MSPS 1.8V Int/Ext Ref w/Pwrdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS5103IPFBG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40MSPS 1.8V Int/Ext Ref w/Pwrdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS5103IPFBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40MSPS 1.8V Int/Ext Ref w/Pwrdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS5103IPFBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40MSPS 1.8V Int/Ext Ref w/Pwrdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS5120 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-Channel, 10-Bit, 40MSPS, 1.8V CMOS ANALOG-TO-DIGITAL CONVERTER
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