- 您现在的位置：买卖IC网 > PDF目录22181 > AD736JR-REEL (Analog Devices Inc)IC AC RMS TO DC CONV 5V 8-SOIC PDF资料下载
参数资料
| 型号： | AD736JR-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC AC RMS TO DC CONV 5V 8-SOIC |
| 产品培训模块： | Introduction to Analog RMS-to-DC Technology: Converters and Applications |
| 标准包装： | 2,500 |
| 电流 - 电源： | 160µA |
| 电源电压： | 2.8V，-3.2V ~ ±16.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
| 配用： | AD736-EVALZ-ND - BOARD EVALUATION FOR AD736 |
AD736
RAPID SETTLING TIMES VIA THE AVERAGE
RESPONDING CONNECTION
does not use the C AV averaging capacitor, its settling time does
not vary with the input signal level. It is determined solely by
the RC time constant of C F and the internal 8 k? resistor in the
output amplifier’s feedback path.
Data Sheet
In most cases, the combined magnitudes of both the dc and
ac error components need to be considered when selecting
appropriate values for Capacitor C AV and Capacitor C F . This
combined error, representing the maximum uncertainty of the
measurement, is termed the averaging error and is equal to the
peak value of the output ripple plus the dc error.
E O
C C
10μF
+
(OPTIONAL)
IDEAL
E O
DC ERROR = E O – E O (IDEAL)
C C
1
8 k?
AD736
8
COM
AVERAGE E O = E O
+V S
V IN
–V S
V IN
2
C F
3
–V S
4
INPUT
AMPLIFIER
BIAS
SECTION
FULL
WAVE
RECTIFIER
rms
CORE
8 k?
OUTPUT
AMPLIFIER
+V S
7
OUTPUT
6
5 C AV
V OUT
DOUBLE-FREQUENCY
RIPPLE
TIME
Figure 20. Output Waveform for Sine Wave Input Voltage
As the input frequency increases, both error components
decrease rapidly; if the input frequency doubles, the dc error
and ripple reduce to one quarter and one half of their original
values, respectively, and rapidly become insignificant.
+
C F
33μF
AC MEASUREMENT ACCURACY AND CREST FACTOR
The crest factor of the input waveform is often overlooked when
determining the accuracy of an ac measurement. Crest factor is
POSITIVE SUPPLY
COMMON
0.1μF
+V S
defined as the ratio of the peak signal amplitude to the rms
amplitude (crest factor = V PEAK /V rms). Many common waveforms,
0.1μF
NEGATIVE SUPPLY –V S
Figure 19. AD736 Average Responding Circuit
DC ERROR, OUTPUT RIPPLE, AND AVERAGING
ERROR
such as sine and triangle waves, have relatively low crest factors
(≤2). Other waveforms, such as low duty-cycle pulse trains and
SCR waveforms, have high crest factors. These types of waveforms
require a long averaging time constant (to average out the long
periods between pulses). Figure 8 shows the additional error vs.
the crest factor of the AD736 for various values of C AV .
with a sine wave input applied. As with all real-world devices,
the ideal output of V OUT = V IN is never achieved exactly. Instead,
the output contains both a dc and an ac error component.
As shown in Figure 20, the dc error is the difference between
the average of the output signal (when all the ripple in the
output is removed by external filtering) and the ideal dc output.
The dc error component is therefore set solely by the value of
the averaging capacitor used. No amount of post filtering (that
is, using a very large C F ) allows the output voltage to equal its
ideal value. The ac error component, an output ripple, can be
easily removed by using a large enough post filtering capacitor, C F .
Rev. I | Page 12 of 20
相关PDF资料 |
PDF描述 |
|---|---|
| RAC30-24SA-E | CONV AC/DC 2A 6.5-18VIN 3.0-5.5V |
| AD8436JCPZ-WP | IC CONV TRUE RMS-DC LP 20LFCSP |
| PR1503G-T | DIODE FAST REC 1.5A 200V DO-15 |
| VI-JVK-IZ | CONVERTER MOD DC/DC 40V 25W |
| EN93F2 | BATTERY PK 3.0V C SIZE ALKALINE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD736JR-REEL7 | 功能描述:IC AC RMS TO DC CONV 5V 8-SOIC 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 |
| AD736JR-REEL-7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, Low Power, True RMS-to-DC Converter |
| AD736JRZ | 功能描述:IC TRUE RMS/DC CONV LP 8-SOIC RoHS:是 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 |
| AD736JRZ-R7 | 功能描述:IC TRUE RMS/DC CONV LP 8-SOIC TR RoHS:是 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 |
| AD736JRZ-RL | 功能描述:IC TRUE RMS/DC CONV LP 8-SOIC TR RoHS:是 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 |
发布紧急采购，3分钟左右您将得到回复。