參數(shù)資料
型號(hào)： AD7654ACPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 13/28頁(yè)
文件大小： 0K
描述： IC ADC 16BIT DUAL 2CH 48-LFCSP
標(biāo)準(zhǔn)包裝： 1
系列： PulSAR®
位數(shù)： 16
采樣率（每秒）： 500k
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）： 135mW
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)差分，單極
配用： EVAL-AD7654CBZ-ND - BOARD EVALUATION FOR AD7654
AD7654
Rev. B | Page 20 of 28
SERIAL INTERFACE
The AD7654 is configured to use the serial interface when the
SER/PAR is held high. The AD7654 outputs 32 bits of data,
MSB first, on the SDOUT pin. The order of the channels being
output is also controlled by A/B. When high, Channel A is
output first; when low, Channel B is output first. This data
is synchronized with the 32 clock pulses provided on the
SCLK pin.
MASTER SERIAL INTERFACE
Internal Clock
The AD7654 is configured to generate and provide the serial
data clock SCLK when the EXT/INT pin is held low. The
AD7654 also generates a SYNC signal to indicate to the host
when the serial data is valid. The serial clock SCLK and the
SYNC signal can be inverted if desired. The output data is valid
on both the rising and falling edge of the data clock. Depending
on RDC/SDIN input, the data can be read after each conversion
or during the following conversion. Figure 29 and Figure 30
show the detailed timing diagrams of these two modes.
Usually, because the AD7654 is used with a fast throughput, the
master-read-during-convert mode is the most recommended
serial mode when it can be used. In this mode, the serial clock
and data toggle at appropriate instants, which minimizes
potential feedthrough between digital activity and the critical
conversion decisions. The SYNC signal goes low after the LSB
of each channel has been output. Note that in this mode, the
SCLK period changes because the LSBs require more time to
settle, and the SCLK is derived from the SAR conversion clock.
Note that in the master-read-after-convert mode, unlike in
other modes, the signal BUSY returns low after the 32 data bits
are pulsed out and not at the end of the conversion phase,
which results in a longer BUSY width. One advantage of using
this mode is that it can accommodate slow digital hosts because
the serial clock can be slowed down by using DIVSCLK[1:0]
inputs. Refer to Table 4 for the timing details.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7654ACPZRL 功能描述:IC ADC 16BIT DUAL 2CH 48LFCSP 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
AD7654AST 制造商:Analog Devices 功能描述:ADC Single SAR 500ksps 16-bit Parallel/Serial 48-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:16-BIT SIMULTANEOUS SAMPLING 500KSPS - Bulk 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7654 LQFP48
AD7654ASTRL 制造商:Analog Devices 功能描述:ADC Single SAR 500ksps 16-bit Parallel/Serial 48-Pin LQFP T/R
AD7654ASTZ 功能描述:IC ADC 16BIT 500KSPS DUAL 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 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
AD7654ASTZ 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7654 LQFP48
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