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5962-9067101MRA PDF预览

5962-9067101MRA

更新时间: 2024-01-20 15:24:55
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
16页 552K
描述
LVDT Signal Conditioner

5962-9067101MRA 技术参数

生命周期:Active零件包装代码:DIP
包装说明:DIP,针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.8
转换器类型:SIGNAL CONDITIONERJESD-30 代码:R-GDIP-T20
JESD-609代码:e0最大负电源电压:-18 V
最小负电源电压:-12 V标称负供电电压:-15 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:-55 °C
封装主体材料:CERAMIC, GLASS-SEALED封装代码:DIP
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Qualified
筛选级别:MIL-STD-883最大供电电压:18 V
最小供电电压:12 V标称供电电压:15 V
表面贴装:NO温度等级:MILITARY
端子面层:TIN LEAD端子形式:THROUGH-HOLE
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

5962-9067101MRA 数据手册

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LVDT Signal  
Conditioner  
a
AD598  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Single Chip Solution, Contains Internal Oscillator and  
Voltage Reference  
EXCITATION (CARRIER)  
No Adjustments Required  
3
2
Insensitive to Transducer Null Voltage  
Insensitive to Primary to Secondary Phase Shifts  
DC Output Proportional to Position  
20 Hz to 20 kHz Frequency Range  
Single or Dual Supply Operation  
Unipolar or Bipolar Output  
Will Operate a Remote LVDT at Up to 300 Feet  
Position Output Can Drive Up to 1000 Feet of Cable  
Will Also Interface to an RVDT  
Outstanding Performance  
V
A
11  
17  
10  
AMP  
OSC  
AD598  
A–B  
A+B  
VOUT  
16  
FILTER  
AMP  
LVDT  
VB  
Linearity: 0.05% of FS max  
Output Voltage: ؎11 V min  
Gain Drift: 50 ppm/؇C of FS max  
Offset Drift: 50 ppm/؇C of FS max  
PRODUCT HIGHLIGHTS  
1. The AD598 offers a monolithic solution to LVDT and  
RVDT signal conditioning problems; few extra passive com-  
ponents are required to complete the conversion from me-  
chanical position to dc voltage and no adjustments are  
required.  
PRODUCT DESCRIPTION  
The AD598 is a complete, monolithic Linear Variable Differen-  
tial Transformer (LVDT) signal conditioning subsystem. It is  
used in conjunction with LVDTs to convert transducer mechan-  
ical position to a unipolar or bipolar dc voltage with a high  
degree of accuracy and repeatability. All circuit functions are  
included on the chip. With the addition of a few external passive  
components to set frequency and gain, the AD598 converts the  
raw LVDT secondary output to a scaled dc signal. The device  
can also be used with RVDT transducers.  
2. The AD598 can be used with many different types of  
LVDTs because the circuit accommodates a wide range of  
input and output voltages and frequencies; the AD598 can  
drive an LVDT primary with up to 24 V rms and accept sec-  
ondary input levels as low as 100 mV rms.  
The AD598 contains a low distortion sine wave oscillator to  
drive the LVDT primary. The LVDT secondary output consists  
of two sine waves that drive the AD598 directly. The AD598  
operates upon the two signals, dividing their difference by their  
sum, producing a scaled unipolar or bipolar dc output.  
3. The 20 Hz to 20 kHz LVDT excitation frequency is deter-  
mined by a single external capacitor. The AD598 input sig-  
nal need not be synchronous with the LVDT primary drive.  
This means that an external primary excitation, such as the  
400 Hz power mains in aircraft, can be used.  
The AD598 uses a unique ratiometric architecture (patent pend-  
ing) to eliminate several of the disadvantages associated with  
traditional approaches to LVDT interfacing. The benefits of this  
new circuit are: no adjustments are necessary, transformer null  
voltage and primary to secondary phase shift does not affect sys-  
tem accuracy, temperature stability is improved, and transducer  
interchangeability is improved.  
4. The AD598 uses a ratiometric decoding scheme such that  
primary to secondary phase shifts and transducer null voltage  
have absolutely no effect on overall circuit performance.  
5. Multiple LVDTs can be driven by a single AD598, either in  
series or parallel as long as power dissipation limits are not  
exceeded. The excitation output is thermally protected.  
6. The AD598 may be used in telemetry applications or in hos-  
tile environments where the interface electronics may be re-  
mote from the LVDT. The AD598 can drive an LVDT at  
the end of 300 feet of cable, since the circuit is not affected  
by phase shifts or absolute signal magnitudes. The position  
output can drive as much as 1000 feet of cable.  
The AD598 is available in two performance grades:  
Grade  
Temperature Range Package  
AD598JR 0°C to +70°C  
AD598AD –40°C to +85°C  
20-Pin Small Outline (SOIC)  
20-Pin Ceramic DIP  
7. The AD598 may be used as a loop integrator in the design of  
simple electromechanical servo loops.  
It is also available processed to MIL-STD-883B, for the military  
range of –55°C to +125°C.  
REV. A  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 617/329-4700  
Fax: 617/326-8703  

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