參數(shù)資料
型號: ADC1113D125HN
廠商: NXP Semiconductors N.V.
元件分類: 外設(shè)及接口
英文描述: Dual 11 bits ADC; 125 Msps; serial JESD204A
封裝: ADC1113D125HN/C1<SOT684-7 (HVQFN56)|<<http://www.nxp.com/packages/SOT684-7.html<1<Always Pb-free,;ADC1113D125HN/C1<SOT684-7 (HVQFN56)|<<http://www.nxp.com/packages/SOT684
文件頁數(shù): 4/41頁
文件大?。?/td> 536K
代理商: ADC1113D125HN
ADC1113D125
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 10 February 2011
12 of 41
NXP Semiconductors
ADC1113D125
Dual 11-bit ADC; serial JESD204A interface
11. Application information
11.1 Analog inputs
11.1.1 Input stage description
The analog input of the ADC1113D125 supports a differential or a single-ended input
drive. Optimal performance is achieved using differential inputs with the common-mode
input voltage (VI(cm)) on pins INP and INM set to 0.5VDDA.
The full-scale analog input voltage range is configurable between 1 V (p-p) and 2 V (p-p)
via a programmable internal reference (see Section 11.2 and Table 21).
Figure 6 shows the equivalent circuit of the sample-and-hold input stage, including
ElectroStatic Discharge (ESD) protection and circuit and package parasitics.
The sample phase occurs when the internal clock (derived from the clock signal on pin
CLKP/CLKM) is HIGH. The voltage is then held on the sampling capacitors. When the
clock signal goes LOW, the stage enters the hold phase and the voltage information is
transmitted to the ADC core.
11.1.2 Anti-kickback circuitry
Anti-kickback circuitry (R-C filter in Figure 7) is needed to counteract the effects of a
charge injection generated by the sampling capacitance.
The RC filter is also used to filter noise from the signal before it reaches the sampling
stage. The value of the capacitor should be chosen to maximize noise attenuation without
degrading the settling time excessively.
Fig 6.
Input sampling circuit
005aaa069
INAP
INBP
package
ESD
parasitics
switch
Ron = 15 Ω
4 pF
Cs
switch
Ron = 15 Ω
INAM
INBM
1, 14
2, 13
internal
clock
internal
clock
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ADC1113D125HN/C1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 11-bit ADC; serial JESD204A interface
ADC1113D125HN/C1,5 功能描述:模數(shù)轉(zhuǎn)換器 - ADC DUAL 11b ADC 125MSPS 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
ADC1113D125HNC1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 11-bit ADC; serial JESD204A interface
ADC1113D125HN-C1 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