參數(shù)資料
型號： ADS6224IRGZ25
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC48
封裝： 7 X 7 MM, GREEN, PLASTIC, VQFN-48
文件頁數(shù)： 42/73頁
文件大?。?/td> 3182K
代理商： ADS6224IRGZ25
www.ti.com
CLOCK INPUT
SLAS543A – MAY 2007 – REVISED SEPTEMBER 2007
So, the fine gain can be used to trade-off between SFDR and SNR. The coarse gain makes it possible to get
best SFDR but without losing SNR significantly. At high input frequencies, the gains are especially useful as the
SFDR improvement is significant with marginal degradation in SINAD.
The gains can be programmed using the register bits <COARSE GAIN> (Table 19) and <FINE GAIN>
(Table 18). Note that the default gain after reset is 0 dB.
Table 22. Full-Scale Range Across Gains
GAIN, dB
TYPE
FULL-SCALE, Vpp
0
Default (after reset)
2
3.5
Coarse setting (fixed)
1.34
1
1.78
2
1.59
3
1.42
Fine setting (programmable)
4
1.26
5
1.12
6
1.00
The ADS622X clock inputs can be driven differentially (SINE, LVPECL or LVDS) or single-ended (LVCMOS),
with little or no difference in performance between them. The common-mode voltage of the clock inputs is set to
VCM using internal 5-k
resistors as shown in Figure 86. This allows using transformer-coupled drive circuits for
sine wave clock or ac-coupling for LVPECL, LVDS clock sources (see Figure 88 and Figure 90). Figure 87
shows the impedance looking into the clock input pins.
Copyright 2007, Texas Instruments Incorporated
47
Product Folder Link(s): ADS6225 ADS6224 ADS6223 ADS6222
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS6224IRGZR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 12b 105MSPS ADC 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6224IRGZRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 12B 105MSPS ADC 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6224IRGZT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 12b 105MSPS ADC 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6224IRGZTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 12B 105MSPS ADC 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6225 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL CHANNEL, 12-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS INTERFACE
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