參數(shù)資料
型號(hào): AD1385
廠商: Analog Devices, Inc.
英文描述: 16-Bit 500 kHz Wide Temperature Range Sampling ADC(16位500kHz寬溫度范圍采樣A/D轉(zhuǎn)換器)
中文描述: 16位500千赫寬溫采樣ADC(16位500kHz的寬溫度范圍采樣的A / D轉(zhuǎn)換器)
文件頁(yè)數(shù): 10/20頁(yè)
文件大小: 360K
代理商: AD1385
AD1385
REV. 0
–10–
Figure 17. Start-Convert Controlled Conversion Timing
Figure 18. Free Running Conversion Timing
At this point a new conversion will be initiated. T he minimum
setup and hold times for Start Convert relative to the rising
clock edge are 10 ns. Start Convert transitions should not be
placed in the window which begins 100 ns (one clock period)
after the rising edge of Hold Command Out and which ends
1300 ns (thirteen clock periods) after this rising edge (see Fig-
ure 17). T his minimizes internal coupling between Start Con-
vert and sensitive internal circuit nodes.
T ransmission line effects at the Start Convert input should be
considered when designing circuit boards for the AD1385. A se-
ries termination resistor of 50
to 100
is recommended when
the source of Start Convert is more than a few inches away from
the AD1385. T his will control reflections and transients which
could otherwise degrade the part’s performance.
Asynchronous Operation
In synchronous operation the T /H is placed into Hold mode by
the first rising clock edge after Start Convert goes high. T his
mode of operation provides maximum rejection of system clock
noise. Some applications may require the AD1385 to operate
asynchronously, that is, with the Start Convert input directly
controlling the track-to-hold transition. T his may be achieved
using a 2-input OR gate connected as shown in Figure 19. T he
rising edge of Start Convert places the T /H into Hold mode; the
A/D conversion cycle begins with the first rising clock edge after
the Start Convert transition, and Start Convert must remain
high during at least one rising clock edge in order to begin the
conversion. T he width of Start Convert should be either less
than 150 ns or greater than 1400 ns to minimize coupling be-
tween the falling edge of Start Convert and sensitive internal
nodes. In asynchronous operation the T /H will remain in Hold
Figure 19. Connecting the AD1385 to Sample the Input
Signal Asynchronously from the Clock
相關(guān)PDF資料
PDF描述
AD1403 Low Cost, Precision 2.5 V IC References
AD1403A Low Cost, Precision 2.5 V IC References
AD1403A* Low Cost. Precision 2.5 V IC References
AD14060BF-4 Quad-SHARC DSP Multiprocessor Family
AD14060 ECONOLINE: RD & RC - Dual Output from a Single Input Rail- 1kVDC & 2kVDC Isolation- Power Sharing on Output- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 86%
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD1385KD 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:16-Bit 500 kHz Wide Temperature Range Sampling ADC
AD1385TD 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD1385TD/883B 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:16-Bit 500 kHz Wide Temperature Range Sampling ADC
AD-1386 功能描述:烙鐵 CALIBRATION GUAGE RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類(lèi)型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類(lèi)型:US Cord Included
AD-1386-CALIBRATION-GA 制造商:TE Connectivity 功能描述:AD-1386-CALIBRATION-GAUGE 992013-000