參數(shù)資料
型號(hào)： LTC2217CUP#TR
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： 1-CH 16-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
封裝： 9 X 9 MM, PLASTIC, MO-220WNJR, QFN-64
文件頁數(shù)： 18/32頁
文件大?。?/td> 1285K
代理商： LTC2217CUP#TR
LTC2217
25
2217f
Figure 14. Descrambling a Scrambled Digital Output
D1
D0
D2
D14
D15
PC BOARD
FPGA
CLKOUT
OF
D15
⊕ D0
D14
⊕ D0
D2
⊕ D0
D1
⊕ D0
D0
2217 F14
LTC2217
Internal Dither
The LTC2217 is a 16-bit ADC with a very linear transfer
function; however, at low input levels even slight imperfec-
tions in the transfer function will result in unwanted tones.
Small errors in the transfer function are usually a result
of ADC element mismatches. An optional internal dither
mode can be enabled to randomize the input location on
the ADC transfer curve, resulting in improved SFDR for
low signal levels.
As shown in Figure 15, the output of the sample-and-hold
amplier is summed with the output of a dither DAC. The
dither DAC is driven by a long sequence pseudo-random
number generator; the random number fed to the dither DAC
is also subtracted from the ADC result. If the dither DAC
is precisely calibrated to the ADC, very little of the dither
signal will be seen at the output. The dither signal that does
leak through will appear as white noise. The dither DAC is
calibrated to result in typically less than 0.5dB elevation
in the noise oor of the ADC as compared to the noise
oor with dither off, when a suitable input termination is
provided (see Demo Board schematic DC996B).
Figure 15. Functional Equivalent Block Diagram of Internal Dither Circuit
+–
AIN–
AIN+
S/H
AMP
DIGITAL
SUMMATION
OUTPUT
DRIVERS
MULTIBIT DEEP
PSEUDO-RANDOM
NUMBER
GENERATOR
16-BIT
PIPELINED
ADC CORE
PRECISION
DAC
CLOCK/DUTY
CYCLE
CONTROL
CLKOUT
OF
D15
D0
ENC
DITHER ENABLE
HIGH = DITHER ON
LOW = DITHER OFF
DITH
ENC
ANALOG
INPUT
2217 F15
LTC2217
APPLICATIONS INFORMATION
相關(guān)PDF資料
PDF描述
LTC2226HLU#PBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
LTC2226HLU 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
LTC2226HLU#TRPBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
LTC2226HLU#TR 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
LTC2246HLU#PBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2217CUP-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 105Msps Low Noise ADC
LTC2217IUP 制造商:Linear Technology 功能描述:Single ADC Pipelined 105Msps 16-bit Parallel/LVDS 64-Pin QFN EP
LTC2217IUP#PBF 制造商:Linear Technology 功能描述:IC ADC 16BIT 105MSPS LN 64-QFN 制造商:Linear Technology 功能描述:16BIT ADC 105MSPS L NOISE 64QFN 制造商:Linear Technology 功能描述:16BIT ADC, 105MSPS, L NOISE, 64QFN
LTC2217IUP#TRPBF 制造商:Linear Technology 功能描述:IC ADC 16BIT 105MSPS LN 64-QFN
LTC2217IUP-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 105Msps Low Noise ADC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*