參數(shù)資料
型號： AD7478AAKSZ-500RL73
廠商： Analog Devices, Inc.
英文描述： 2.35 V to 5.25 V, 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SC70
中文描述： 2.35 V至5.25 V，1 MSPS的，12/10/8位ADC的6引腳SC70封裝
文件頁數(shù)： 7/24頁
文件大?。?/td> 580K
代理商： AD7478AAKSZ-500RL73
REV. C
AD7476A/AD7477A/AD7478A
–7–
Timing Example 1
Having f
SCLK
= 20 MHz and a throughput of 1 MSPS gives a
cycle time of t
2
+ 12.5 (1/f
SCLK
) + t
ACQ
= 1
μ
s. With t
2
= 10 ns min,
this leaves t
ACQ
to be 365 ns. This 365 ns satisfies the requirement
of 250 ns for t
ACQ
. From Figure 3, t
ACQ
is comprised of 2.5 (1/f
SCLK
)
+ t
8
+ t
QUIET
, where t
8
= 36 ns max. This allows a value of 204 ns
for t
QUIET
,
satisfying the minimum requirement of 50 ns.
CS
SCLK
SDATA
t
2
t
6
t
3
t
4
ZERO
t
7
DB10
t
5
t
8
t
CONVERT
t
QUIET
ZERO
ZERO
DB11
DB2
DB1
DB0
B
THREE-STATE
THREE-
STATE
Z
4 LEADING ZEROS
1
2
3
4
5
13
14
15
16
t
1
Figure 2. AD7476A Serial Interface Timing Diagram
CS
SCLK
t
2
t
CONVERT
B
1
2
3
4
5
13
14
15
16
C
t
8
t
QUIET
t
ACQ
12.5(1/fSCLK)
1/THROUGHPUT
Figure 3. Serial Interface Timing Example
Timing Example 2
Having f
SCLK
= 5 MHz and a throughput of 315 kSPS gives a
cycle time of t
2
+ 12.5 (1/f
SCLK
) + t
ACQ
= 3.174
μ
s. With t
2
=
10 ns min, this leaves t
ACQ
to be 664 ns. This 664 ns satisfies
the requirement of 250 ns for t
ACQ
. From Figure 3, t
ACQ
is
comprised of 2.5 (1/f
SCLK
) + t
8
+ t
QUIET
, t
8
= 36 ns max. This
allows a value of 128 ns for t
QUIET
,
satisfying the minimum
requirement of 50 ns. As in this example and with other slower
clock values, the signal may already be acquired before the
conversion is complete, but it is still necessary to leave 50 ns
minimum t
QUIET
between conversions. In Example 2, the
signal should be fully acquired at approximately Point C in
Figure 3.
相關(guān)PDF資料
PDF描述
AD7477AAKSZ-REEL Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:12; Connector Shell Size:28; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight
AD7478AAKSZ-REEL Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:3; Connector Shell Size:28; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight
AD7477AAKSZ-REEL7 GT 12C 6#12 6#16 PIN RECP WALL
AD7478AAKSZ-REEL7 GT 12C 6#12 6#16 SKT RECP WALL
AD7476AYKSZ-REEL7 2.35 V to 5.25 V, 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SC70
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7478AAKSZ-REEL 功能描述:IC ADC 8BIT 1MSPS SC70-6 T/R RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
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AD7478AAKSZ-REEL73 制造商:AD 制造商全稱:Analog Devices 功能描述:2.35 V to 5.25 V, 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SC70
AD7478AARM 功能描述:IC ADC 8BIT 2.35V 1MSPS 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
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