參數(shù)資料
型號(hào)： EVAL-AD7661CBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 14/28頁(yè)
文件大?。?/td> 0K
描述： BOARD EVALUATION FOR AD7661
標(biāo)準(zhǔn)包裝： 1
系列： PulSAR®
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 100k
數(shù)據(jù)接口： 串行，并聯(lián)
輸入范圍： ±VREF
在以下條件下的電源（標(biāo)準(zhǔn)）： 16mW @ 100kSPS
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD7661
已供物品： 板，CD
相關(guān)產(chǎn)品： AD7661ACPZRL-ND - IC ADC 16BIT W/REF 48-LFCSP
AD7661ASTZ-ND - IC ADC 16BIT W/REF 48-LQFP
AD7661ACPZ-ND - IC ADC 16BIT W/REF 48LFCSP
AD7661ASTZRL-ND - IC ADC 16BIT W/REF 48LQFP
AD7661
Rev. 0 | Page 21 of 28
CONVERSION CONTROL
Figure 33 shows the detailed timing diagrams of the conversion
process. The AD7661 is controlled by the CNVST signal, which
initiates conversion. Once initiated, it cannot be restarted or
aborted, even by the power-down input PD, until the conversion
is complete. CNVST operates independently of CS and RD.
Conversions can be automatically initiated with the AD7661. If
CNVST is held LOW when BUSY is LOW, the AD7661 controls
the acquisition phase and automatically initiates a new
conversion. By keeping CNVST LOW, the AD7661 keeps the
conversion process running by itself. It should be noted that the
analog input must be settled when BUSY goes LOW. Also, at
power-up, CNVST should be brought LOW once to initiate the
conversion process. In this mode, the AD7661 can run slightly
faster than the guaranteed 100 kSPS.
Although CNVST is a digital signal, it should be designed with
special care with fast, clean edges, and levels with minimum
overshoot and undershoot or ringing.
The CNVST trace should be shielded with ground and a low
value serial resistor (i.e., 50 ) termination should be added
close to the output of the component that drives this line.
For applications where SNR is critical, the CNVST signal should
have very low jitter. This may be achieved by using a dedicated
oscillator for CNVST generation, or to clock CNVST with a
high frequency, low jitter clock, as shown in Figure 26.
BUSY
MODE
t2
t1
t3
t4
t5
t6
t7
t8
ACQUIRE
CONVERT
ACQUIRE
CONVERT
03033-0-026
CNVST
Figure 33. Basic Conversion Timing
t9
t8
RESET
DATA
BUSY
03033-
0-
027
CNVST
Figure 34. RESET Timing
t1
t3
t4
t11
BUSY
DATA
BUS
CS = RD = 0
t10
PREVIOUS CONVERSION DATA
NEW DATA
03033-
0-
028
CNVST
Figure 35. Master Parallel Data Timing for Reading (Continuous Read)
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EVAL-AD7661EDZ 功能描述:BOARD EVAL FOR AD7661 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:* 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
EVAL-AD7662CB 制造商:AD 制造商全稱:Analog Devices 功能描述:Evaluation Board AD766X/AD767X
EVAL-AD7663CB 制造商:Analog Devices 功能描述:
EVAL-AD7663CBZ 功能描述:BOARD EVALUATION FOR AD7663 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
EVAL-AD7663EDZ 制造商:Analog Devices 功能描述:CONVERTER - ADC
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