參數(shù)資料
型號(hào)： ADC12048CIV
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： ADC
英文描述： 12-Bit Plus Sign 216 kHz 8-Channel Sampling Analog-to-Digital Converter
中文描述： 1-CH 13-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 28/30頁(yè)
文件大?。?/td> 635K
代理商： ADC12048CIV
Analog Application Information
(Continued)
When measuring AC input signals, any crosstalk between
analog input/output lines and the reference lines (CH0–CH7,
MUXOUT
±
, ADC IN
±
, V
±
) should be minimized.
Crosstalk is minimized by reducing any stray capacitance
between the lines. This can be done by increasing the clear-
ance between traces, keeping the traces as short as pos-
sible, shielding traces from each other by placing them on
different sides of the AGND plane, or running AGND traces
between them.
Figure 21 also shows the reference input bypass capacitors.
Here the reference inputs are considered to be differential.
The performance improves by having a 0.1 μF capacitor be-
tween the V
+ and V
, and by bypassing in a manner
similar to that described for the supply pins. When a single
ended reference is used, V
is connected to AGND and
only two capacitors are used between V
+ and V
(0.1 μF + 10 μF). It is recommended to directly connect the
AGND side of these capacitors to the V
instead of con-
necting V
and the ground sides of the capacitors sepa-
rately to the ground planes. This provides a significantly
lower-impedance connection when using surface mount
technology.
DS012387-38
FIGURE 21. Top View of Printed Circuit Board for a 44-Pin PLCC ADC12048
A
www.national.com
28
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADC12048CIV/NOPB 功能描述:模數(shù)轉(zhuǎn)換器 - 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADC12048CIVF 功能描述:模數(shù)轉(zhuǎn)換器 - 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADC12048CIVF/NOPB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B PLUS SIGN 216KHz 8CH SAMPLING 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADC12048CIVF/NOPB 制造商:Texas Instruments 功能描述:A/D Converter (A-D) IC
ADC12048EVAL 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit Plus Sign 216 kHz 8-Channel Sampling Analog-to-Digital Converter
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