參數(shù)資料
型號(hào): AD7652ASTZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 14/28頁(yè)
文件大小: 0K
描述: IC ADC 16BIT 500KSPS REF 48LQFP
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): 90mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤(pán)
輸入數(shù)目和類(lèi)型: 2 個(gè)偽差分,單極
配用: EVAL-AD7652CBZ-ND - BOARD EVALUATION FOR AD7652
AD7652
Usually, because the AD7652 is used with a fast throughput,
Master Read During Conversion is the most recommended
serial mode. In this mode mode, the serial clock and data toggle
at appropriate instants, minimizing potential feedthrough
between digital activity and critical conversion decisions.
MASTER SERIAL INTERFACE
Internal Clock
The AD7652 is configured to generate and provide the serial
data clock SCLK when the EXT/INT pin is held LOW. The
AD7652 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. F
and
show
the detailed timing diagrams of these two modes.
Figure 32. Master Serial Data Timing for Reading (Read after Convert)
Figure 33. Master Serial Data Timing for Reading (Read Previous Conversion during Convert
In Read After Conversion 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.
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
02964-0-015
CNVST
CS, RD
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
t18
BUSY
SYNC
SCLK
SDOUT
02964-0-016
CNVST
CS, RD
Rev. 0 | Page 21 of 28
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