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AD8436JCPZ-RL PDF预览

AD8436JCPZ-RL

更新时间： 2024-02-22 06:30:54
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
20页 742K
描述
Low Cost, Low Power

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AD8436JCPZ-RL 技术参数

Source Url Status Check Date：2013-05-01 14:56:26.377是否无铅： 含铅
是否Rohs认证： 符合生命周期：Active
包装说明：SSOP, SSOP20,.25针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：1.58
Samacsys Description：Analog Devices AD8436ARQZ, True RMS-DC Converter, 20-Pin, QSOP其他特性：ALSO OPERATES IN SINGLE SUPPLY VOLTAGE RANGE FROM 4.8 TO 36 VOLT
转换器类型：RMS TO DC CONVERTERJESD-30 代码：R-PDSO-G20
JESD-609代码：e3长度：8.66 mm
湿度敏感等级：1最大负电源电压：-18 V
最小负电源电压：-2.4 V标称负供电电压：-5 V
功能数量：1端子数量：20
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装等效代码：SSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
电源：+-2.4/+-18/4.8/36 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Analog Special Function Converters
最大压摆率：0.4 mA最大供电电压：18 V
最小供电电压：2.4 V标称供电电压：5 V
表面贴装：YES技术：BIPOLAR
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.64 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.91 mmBase Number Matches：1

AD8436JCPZ-RL 数据手册

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Low Cost, Low Power,  
True RMS-to-DC Converter  
AD8436  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
CAVG CCF  
Computes true rms value instantly  
Accuracy: 10 μV 0.5% of reading  
Wide dynamic input range  
100 μV rms to 3 V rms (8.5 V p-p) full-scale input range  
Larger inputs with external scaling  
Wide bandwidth:  
VCC  
100kΩ  
SUM  
IGND  
100kΩ  
8kΩ  
RMS CORE  
RMS  
VEE  
OGND  
OUT  
1 MHz for −3 dB (300 mV)  
65 kHz for additional 1% error  
16kΩ  
10pF  
Zero converter dc output offset  
No residual switching products  
Specified at 300 mV rms input  
Accurate conversion with crest factors up to 10  
Low power: 300 µA typical at 2.4 V  
Fast settling at all input levels  
10kΩ  
10kΩ  
IBUFGN  
IBUFIN–  
IBUFIN+  
–
+
FET OP AMP  
IBUFOUT  
High-Z FET separately powered input buffer  
OBUFIN+  
OBUFIN–  
+
–
DC BUFFER  
OBUFOUT  
R
IN ≥ 1012 Ω, CIN ≤ 2 pF  
16kΩ  
Precision dc output buffer  
Wide supply range  
AD8436  
Figure 1.  
Dual: 2.4 V to 18 V  
Single: 4.8 V to 36 V  
Small size: 4 mm × 4 mm package  
ESD protected  
GENERAL DESCRIPTION  
The AD8436 is a new generation, translinear precision, low power,  
true rms-to-dc converter that is loaded with options. It computes  
a precise dc equivalent of the rms value of ac waveforms, including  
complex patterns such as those generated by switchmode power  
supplies and triacs. Its accuracy spans a wide range of input levels  
(see Figure 2) and temperatures. The ensured accuracy of ≤±±.ꢀ5  
and ≤1± μV output offset result from the latest Analog Devices,  
Inc., technology. The crest factor error is <±.ꢀ5 for CF values  
between 1 and 1±.  
meters and other battery-powered applications. The precision  
dc output buffer offers extremely low offset voltages, thanks to  
bias current cancellation.  
Unlike digital solutions, the AD8436 has no switching circuitry  
limiting performance at high or low amplitudes (see Figure 2).  
A usable response of <1±± μV and >3 V extends the dynamic  
range with no external scaling, accommodating the most  
demanding low signal conditions.  
GREATER INPUT DYNAMIC RANGE  
The AD8436 delivers instant true rms results at less cost than  
misleading peak, averaging, or digital solutions. There is no  
programming expense or processor overhead to consider, and the  
4 mm × 4 mm package easily fits into those tight applications.  
AD8436  
∆Σ SOLUTION  
On-board buffer amplifiers enable the widest range of options  
for any rms-to-dc converter available, regardless of cost. For  
minimal applications, only a single external averaging capacitor  
is required. The built-in high impedance FET buffer provides an  
interface for external attenuators, frequency compensation, or  
driving low impedance loads. A matched pair of internal resistors  
enables an easily configurable gain-of-two or more, extending  
the usable input range even lower. The low power, precision input  
buffer makes the AD8436 attractive for use in portable multi-  
100µV  
1mV  
10mV  
100mV  
1V  
3V  
Figure 2. Usable Dynamic Range of the AD8436 vs. ΔΣ  
The AD8436 operates from single or dual supplies of ±2.4 V  
(4.8 V) to ±18 V (36 V). A and J grades are available in a compact  
4 mm × 4 mm, 2±-lead chip-scale package. The operating  
temperature ranges are −4±°C to 12ꢀ°C and ±°C to 7±°C.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2011 Analog Devices, Inc. All rights reserved.  
 
 
 
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