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参数资料
型号： AD2S1210ASTZ-RL7
厂商： Analog Devices Inc
文件页数： 27/36页
文件大小： 0K
描述： IC CONV R/D 10-16BIT OSC 48LQFP
标准包装： 500
类型： R/D 转换器
分辨率（位）： *
数据接口： 串行，并联
电压电源： 模拟和数字
电源电压： 4.75 V ~ 5.25 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 48-LQFP
供应商设备封装： 48-LQFP（7x7）
包装： 带卷 (TR)
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.
Figure 18 and Figure 19 in the Typical Performance Characteristics
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)
Figure 20 to Figure 23 in the Typical Performance Characteristics
section show the tracking error vs. acceleration response of the
AD2S1210 for each resolution setting.
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相关代理商/技术参数
参数描述
AD2S1210BSTZ 功能描述:IC CONV R/D 10-16BIT 48-LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘
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 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘
AD2S1210DSTZ 功能描述:IC CONV R/D VAR RES OSC 48LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘
AD2S1210DSTZ 制造商:Analog Devices 功能描述:IC, ADC, 16BIT, PARALLEL, SERIAL, LQFP-4
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