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參數(shù)資料
| 型號： | ADW71205WSTZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/20頁 |
| 文件大小： | 0K |
| 描述： | IC RDC 12BIT W/REF OSC 44LQFP |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 3 |
| 功率耗散（最大）： | 50mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LQFP |
| 供應(yīng)商設(shè)備封裝： | 44-LQFP（10x10） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個(gè)差分，單極 |
AD2S1205
Rev. A | Page 18 of 20
The step response to a 10° input step is shown in Figure 14.
Because the error calculation (see Equation 2) is nonlinear for
large values of θ , the response time for such large (90° to
180°) step changes in position typically takes three times as long
as the response to a small (<20°) step change in position. In
response to a step change in velocity, the AD2S1205 exhibits
the same response characteristics as it does for a step change
in position.
06
33
9-
0
12
1
5
0
–40
–35
–30
–25
–20
M
AG
NI
T
UD
E
(
d
B)
–15
–10
–5
–45
10
100
10k
1k
FREQUENCY (Hz)
100k
Figure 12. RDC System Magnitude Response
0
633
9-
0
13
1
0
–20
–180
–160
–140
–120
–100
P
H
AS
E
(
D
eg
re
es)
–80
–60
–40
–200
10
100
10k
1k
FREQUENCY (Hz)
100k
Figure 13. RDC System Phase Response
06
33
9-
0
14
0
20
18
2
4
6
8
10
ANG
L
E
(
D
eg
re
e
s
)
12
14
16
0
12
4
3
TIME (ms)
5
Figure 14. RDC Small Step Response
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 =
(25)
Conversely,
a
K
on
Accelerati
Input
Error
Tracking
=
(26)
Figure 15 shows tracking error vs. acceleration for the AD2S1205.
The units of the numerator and denominator must be consistent.
The maximum acceleration of the AD2S1205 is defined as the
acceleration that creates an output position error of 5° (that is,
when LOT is indicated). The maximum acceleration can be
calculated as
2
rps
000
,
103
)
/rev
(
360
5
)
(sec
°
×
=
a
K
on
Accelerati
Maximum
(27)
06
33
9-
0
15
0
10
9
1
2
3
4
5
T
R
ACKI
NG
E
R
RO
R
(
D
eg
re
es)
6
7
8
0
40k
80k
160k
120k
ACCELERATION (rps2)
200k
Figure 15. Tracking Error vs. Acceleration
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| ADW71205YSTZ | 功能描述:IC ADC RDC 12BIT W/OSC 44-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:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 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-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| ADW71205YSTZ-RL | 功能描述:R/D Converter 12 bit Parallel 44-LQFP (10x10) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):在售 類型:R/D 轉(zhuǎn)換器 分辨率（位）:12 b 采樣率（每秒）:- 數(shù)據(jù)接口:并聯(lián) 電壓源:模擬和數(shù)字 電壓 - 電源:5V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:44-LQFP 供應(yīng)商器件封裝:44-LQFP（10x10） 標(biāo)準(zhǔn)包裝:1,500 |
| ADW72909405 | 制造商:LG Corporation 功能描述:Funnel Assembly |
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