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参数资料
| 型号： | AD536A |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Integrated Circuit True RMS-to-DC Converter |
| 中文描述： | 集成电路真有效值- DC转换器 |
| 文件页数： | 7/8页 |
| 文件大小： | 151K |
| 代理商： | AD536A |
REV. B
AD536A
–
7
–
FREQUENCY RESPONSE
The AD536A utilizes a logarithmic circuit in performing the
implicit rms computation. As with any log circuit, bandwidth is
proportional to signal level. The solid lines in the graph below
represent the frequency response of the AD536A at input levels
from 10 millivolts to 7 volts rms. The dashed lines indicate the
upper frequency limits for 1%, 10%, and 3 dB of reading addi-
tional error. For example, note that a 1 volt rms signal will pro-
duce less than 1% of reading additional error up to 120 kHz. A
10 millivolt signal can be measured with 1% of reading addi-
tional error (100
μ
V) up to only 5 kHz.
Figure 11. High Frequency Response
AC MEASUREMENT ACCURACY AND CREST FACTOR
Crest factor is often overlooked in determining the accuracy of
an ac measurement. Crest factor is defined as the ratio of the
peak signal amplitude to the rms value of the signal (CF = V
P
/
V rms). Most common waveforms, such as sine and triangle
waves, have relatively low crest factors (<2). Waveforms which
resemble low duty cycle pulse trains, such as those occurring in
switching power supplies and SCR circuits, have high crest
factors. For example, a rectangular pulse train with a 1% duty
cycle has a crest factor of 10 (CF = 1
η
).
Figure 12 is a curve of reading error for the AD536A for a 1 volt
rms input signal with crest factors from 1 to 11. A rectangular
pulse train (pulsewidth 100
μ
s) was used for this test since it is
the worst-case waveform for rms measurement (all the energy is
contained in the peaks). The duty cycle and peak amplitude
were varied to produce crest factors from 1 to 11 while main-
taining a constant 1 volt rms input amplitude.
Figure 12. Error vs. Crest Factor
Figure 13. AD536A Error vs. Pulsewidth Rectangular
Pulse
Figure 14. AD536A Input and Output Voltage Ranges
vs. Supply
相关PDF资料 |
PDF描述 |
|---|---|
| AD536AJD | Integrated Circuit True RMS-to-DC Converter |
| AD536AJQ | Integrated Circuit True RMS-to-DC Converter |
| AD536AKQ | Integrated Circuit True RMS-to-DC Converter |
| AD536ASD | Integrated Circuit True RMS-to-DC Converter |
| AD536ASE | Integrated Circuit True RMS-to-DC Converter |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD536AJC/D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RMS-to-DC Converter |
| AD536AJCHIPS | 制造商:AD 制造商全称:Analog Devices 功能描述:Integrated Circuit True RMS-to-DC Converter |
| AD536AJCWE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RMS-to-DC Converter |
| AD536AJD | 功能描述:IC TRUE RMS/DC CONV 14-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - RMS 至 DC 转换器 系列:- 标准包装:46 系列:- 电流 - 电源:1.2mA 电源电压:±18 V，36 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| AD536AJD | 制造商:Analog Devices 功能描述:SEMICONDUCTORSLINEAR |
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