參數(shù)資料
型號： AD7661ACPZ
廠商： Analog Devices Inc
文件頁數(shù)： 16/28頁
文件大?。?/td> 0K
描述： IC ADC 16BIT W/REF 48LFCSP
標準包裝： 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）： 25mW
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
供應商設備封裝： 48-LFCSP-VQ（7x7）
包裝： 托盤
輸入數(shù)目和類型： 2 個偽差分，單極
配用： EVAL-AD7661CBZ-ND - BOARD EVALUATION FOR AD7661
AD7661
Rev. 0 | Page 23 of 28
MASTER SERIAL INTERFACE
Usually, because the AD7661 has a longer acquisition phase
than the conversion phase, the data is read immediately after
conversion. This makes the Master Read After Conversion the
most recommended serial mode when it can be used. In this
mode, it should be noted that unlike in other modes, the BUSY
signal returns LOW after the 16 data bits are pulsed out and not
at the end of the conversion phase, which results in a longer
BUSY width.
Internal Clock
The AD7661 is configured to generate and provide the serial
data clock SCLK when the EXT/INT pin is held LOW. The
AD7661 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. Depending on the
RDC/SDIN input, the data can be read after each conversion or
during the following conversion. Figure 39 and Figure 40 show
detailed timing diagrams of these two modes.
In the Read During Conversion mode, the serial clock and data
toggle at appropriate instants, which minimizes potential feed-
through between digital activity and critical conversion
decisions
t3
BUSY
SYNC
SCLK
SDOUT
t28
t29
t14
t18
t19
t20
t21
t24
t26
t27
t23
t22
t16
t15
12
3
14
15
16
D15
D14
D2
D1
D0
X
RDC/SDIN = 0
INVSCLK = INVSYNC = 0
t25
t30
03033-0-032
CNVST
CS, RD
EXT/INT = 0
Figure 39. Master Serial Data Timing for Reading (Read after Convert)
EXT/INT = 0
RDC/SDIN = 1
INVSCLK = INVSYNC = 0
t3
t1
t17
t14
t19
t20 t21
t24
t26
t25
t27
t23
t22
t16
t15
D15
D14
D2
D1
D0
X
12
3
14
15
16
t
18
BUSY
SYNC
SCLK
SDOUT
03033-0-033
CNVST
CS, RD
Figure 40. Master Serial Data Timing for Reading (Read Previous Conversion during Convert)
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相關代理商/技術參數(shù)
參數(shù)描述
AD7661ACPZRL 功能描述:IC ADC 16BIT W/REF 48-LFCSP 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® 標準包裝: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） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極
AD7661AST 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 16-bit Parallel/Serial 48-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:100KSPS, 16-BIT ADC INT REF, 2.5LSB - Tape and Reel 制造商:Analog Devices 功能描述:16BIT ADC INT REF 7661 LQFP48
AD7661ASTRL 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 16-bit Parallel/Serial 48-Pin LQFP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 100KSPS 16BIT PARALLEL/SERL 48LQFP - Tape and Reel
AD7661ASTZ 功能描述:IC ADC 16BIT W/REF 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® 標準包裝: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） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極
AD7661ASTZ 制造商:Analog Devices 功能描述:16BIT ADC INT REF 7661 LQFP48
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