參數(shù)資料
型號(hào)： AD7651ACPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 16/28頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT UNIPOLAR 48LFCSP
標(biāo)準(zhǔn)包裝： 1
系列： PulSAR®
位數(shù)： 16
采樣率（每秒）： 100k
數(shù)據(jù)接口： 串行，并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 45mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 48-LFCSP-VQ（7x7）
包裝： 托盤
輸入數(shù)目和類型： 2 個(gè)偽差分，單極
配用： EVAL-AD7651CBZ-ND - BOARD EVALUATION FOR AD7651
AD7651
External Discontinuous Clock Data Read After
Conversion
External Clock Data Read During Conversion
Figure 35 shows the detailed timing diagrams of this method.
During a conversion, while both CS and RD are LOW, the result
of the previous conversion can be read. The data is shifted out
MSB first with 16 clock pulses, and is valid on both the rising
and falling edges of the clock. The 16 bits must be read before
the current conversion is complete; otherwise, RDERROR is
pulsed HIGH and can be used to interrupt the host interface to
prevent incomplete data reading. There is no daisy-chain feature
in this mode and the RDC/SDIN input should always be tied
either HIGH or LOW.
Though the maximum throughput cannot be achieved using
this mode, it is the most recommended of the serial slave modes.
shows the detailed timing diagrams of this method.
After a conversion is complete, indicated by BUSY returning
LOW, the conversion’s result can be read while both CS and RD
are LOW. Data is shifted out MSB first with 16 clock pulses and
is valid on the rising and falling edges of the clock.
Among the advantages of this method is the fact that conversion
performance is not degraded because there are no voltage
transients on the digital interface during the conversion process.
Another advantage is the ability to read the data at any speed up
to 40 MHz, which accommodates both the slow digital host
interface and the fastest serial reading.
To reduce performance degradation due to digital activity, a fast
discontinuous clock of at least 18 MHz is recommended to
ensure that all the bits are read during the first half of the
conversion phase. It is also possible to begin to read data after
conversion and continue to read the last bits after a new
conversion has been initiated. This allows the use of a slower
clock speed like 14 MHz.
Finally, in this mode only, the AD7651 provides a daisy-chain
feature using the RDC/SDIN pin for cascading multiple con-
verters together. This feature is useful for reducing component
count and wiring connections when desired, as, for instance, in
isolated multiconverter applications.
An example of the concatenation of two devices is shown in
. Simultaneous sampling is possible by using a
common CNVST signal. It should be noted that the RDC/SDIN
input is latched on the opposite edge of SCLK of the one used to
shift out the data on SDOUT. Therefore, the MSB of the
“upstream” converter just follows the LSB of the “downstream”
converter on the next SCLK cycle.
Figure 36. Two AD7651s in a Daisy-Chain Configuration
SCLK
SDOUT
RDC/SDIN
BUSY
DATA
OUT
AD7651
#1
(DOWNSTREAM)
BUSY
OUT
SCLK
AD7651
#2
(UPSTREAM)
RDC/SDIN
SDOUT
SCLK IN
CNVST IN
02964-0-019
CNVST
CS
CNVST
CS
CS IN
Rev. 0 | Page 23 of 28
相關(guān)PDF資料
PDF描述
AD7652ASTZ IC ADC 16BIT 500KSPS REF 48LQFP
AD7653ACPZRL IC ADC 16BIT UNIPOLAR 48LFCSP
AD7654ACPZ IC ADC 16BIT DUAL 2CH 48-LFCSP
AD7655ACPZRL IC ADC 16BIT 4CHAN 48LFCSP
AD7656YSTZ-REEL IC ADC 16BIT 6CH 250KSPS 64LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7651ACPZRL 功能描述:IC ADC 16BIT UNIPOLAR 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7651AST 制造商:Rochester Electronics LLC 功能描述:16-BIT 100KSPS SAR UNIPOLAR ADC W/REEL - Tape and Reel 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:16BIT SAR ADC REF 7651 LQFP48
AD7651ASTRL 制造商:Analog Devices 功能描述:
AD7651ASTZ 功能描述:IC ADC 16BIT 100KSPS 48-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
AD7651ASTZ 制造商:Analog Devices 功能描述:16BIT SAR ADC REF 7651 LQFP48
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

*
*
*