(fCLKIN
參數(shù)資料
型號： AD2S1210BSTZ
廠商： Analog Devices Inc
文件頁數(shù)： 27/36頁
文件大?。?/td> 0K
描述： IC CONV R/D 10-16BIT 48-LQFP
標(biāo)準包裝： 1
類型： R/D 轉(zhuǎn)換器
分辨率（位）： 10，12，14，16 b
數(shù)據(jù)接口： 串行，并聯(lián)
電壓電源： 模擬和數(shù)字
電源電壓： 4.75 V ~ 5.25 V
工作溫度： -40°C ~ 85°C
安裝類型： 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
產(chǎn)品目錄頁面： 790 (CN2011-ZH PDF)
配用： EVAL-AD2S1210EDZ-ND - BOARD EVAL AD2S1210
AD2S1210
Rev. A | Page 33 of 36
Table 29. Loop Transfer Function Parameters vs. Resolution
(fCLKIN = 8.192 MHz)
Resolution (Bits)
t1 (ms)
t2 (ms)
Ka (sec2)
10
0.4
42
39.6 × 106
12
1
91
6.5 × 106
14
2
160
1.6 × 106
16
8
728
92.7 × 103
Note that the closed-loop response is described as
)
(
1
)
(
)
(
s
G
s
G
s
H
+
=
(17)
By converting the calculation to the s-domain, it is possible to
quantify the open-loop dc gain (Ka). This value is useful to
calculate the acceleration error of the loop (see the Sources of
Error section).
The step response to a 10° input step is shown in Figure 10,
Figure 11, Figure 12, and Figure 13. The step response to a 179°
input step is shown in Figure 14, Figure 15, Figure 16, and
Figure 17. In response to a step change in velocity, the
AD2S1210 exhibits the same response characteristics as it does
for a step change in position.
section show the magnitude and phase responses of the AD2S1210
for each resolution setting.
SOURCES OF ERROR
Acceleration
A tracking converter employing a Type II servo loop does not
have a lag in velocity. There is, however, an error associated
with acceleration. This error can be quantified using the
acceleration constant (Ka) of the converter.
Error
Tracking
on
Accelerati
Input
K
a =
(18)
Conversely,
a
K
on
Accelerati
Input
Error
Tracking
=
(19)
The units of the numerator and denominator must be consistent.
The maximum acceleration of the AD2S1210 is defined by the
maximum acceptable tracking error in the users application.
For example, if the maximum acceptable tracking error is 5°,
then the maximum acceleration is defined as the acceleration that
creates an output position error of 5° (that is, when LOT is
indicated).
An example of how to calculate the maximum acceleration in a
12-bit application with a maximum tracking error of 5° is
°
×
=
)
/rev
(
360
5
)
(sec
2
a
K
on
Accelerati
Maximum
90,300 rps2
(20)
section show the tracking error vs. acceleration response of the
AD2S1210 for each resolution setting.
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AD2S1210BSTZ-DASSAULT 制造商:Analog Devices 功能描述:
AD2S1210CSTZ 功能描述:IC CONV R/D VAR RES OSC 48-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤
AD2S1210DSTZ 功能描述:IC CONV R/D VAR RES OSC 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤
AD2S1210DSTZ 制造商:Analog Devices 功能描述:IC, ADC, 16BIT, PARALLEL, SERIAL, LQFP-4
AD2S1210SST-EP-RL7 功能描述:模數(shù)轉(zhuǎn)換器 - ADC IC 10-16 Bit R/D Cnvtr w/Ref Oscilltr RoHS:否 制造商:Analog Devices 通道數(shù)量: 結(jié)構(gòu): 轉(zhuǎn)換速率: 分辨率: 輸入類型: 信噪比: 接口類型: 工作電源電壓: 最大工作溫度: 安裝風(fēng)格: 封裝 / 箱體:
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