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參數(shù)資料
| 型號： | ADC08100CIMTX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 8-Bit, 20 MSPS to 100 MSPS, 1.3 mW/MSPS A/D Converter |
| 中文描述： | 1-CH 8-BIT RESISTANCE LADDER ADC, PARALLEL ACCESS, PDSO24 |
| 封裝： | TSSOP-24 |
| 文件頁數(shù)： | 15/19頁 |
| 文件大?。?/td> | 572K |
| 代理商： | ADC08100CIMTX |
Applications Information
(Continued)
V
should always be at least 1.0V more positive than V
RB
to minimize noise.
The V
pin is the center of the reference ladder and should
be bypassed to a clean, quiet point in the analog ground
plane with a 0.1 μF capacitor. DO NOT allow this pin to float.
2.0 THE ANALOG INPUT
The analog input of theADC08100 is a switch followed by an
integrator. The input capacitance changes with the clock
level, appearing as 3 pF when the clock is low, and 4 pF
when the clock is high. Since a dynamic capacitance is more
difficult to drive than is a fixed capacitance, choose an
amplifier that can drive this type of load. The LMH6702 and
the LMH6628 have been found to be good amplifiers to drive
the ADC08100.
Figure 4
shows an example of an input circuit using the
LMH6702. Any input amplifier should incorporate some gain
as operational amplifiers exhibit better phase margin and
transient response with gains above 2 or 3 than with unity
gain. If an overall gain of less than 3 is required, attenuate
the input and operate the amplifier at a higher gain, as
shown in
Figure 4
.
10137133
FIGURE 3. Driving the reference to force desired values requires driving with a low impedance source.
A
www.national.com
15
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| ADC08100EVAL | 功能描述:BOARD EVAL FOR ADC08100 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
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