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| 型号： | AD598AD |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC LVDT SIGNAL COND 20-CDIP |
| 标准包装： | 1 |
| 类型： | 信号调节器 |
| 输入类型： | 电压 |
| 输出类型： | 电压 |
| 接口： | LVDT |
| 电流 - 电源： | 15mA |
| 安装类型： | 通孔 |
| 封装/外壳： | 20-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 20-CDIP |
| 包装： | 管件 |
| 产品目录页面： | 790 (CN2011-ZH PDF) |
AD598
REV. A
–9–
Figure 15. Gain and Phase Characteristics vs. Frequency
(0 kHz–10 kHz)
1000
100
10
1
0.1
0.01
0.1
1
10
C2, C3, C4; C2 = C3 = C4 –
F
RIPPLE
–
mV
rms
2.5kHz, C
SHUNT = 0nF
2.5kHz, C
SHUNT = 1nF
2.5kHz, C
SHUNT =10nF
Figure 16. Output Voltage Ripple vs. Filter Capacitance
1000
100
10
1
0.1
0.001
0.01
0.1
110
C2, C3, C4; C2 = C3 = C4 –
F
RIPPLE
–
mV
rms
10kHz , C SHUNT = 0nF
10kHz , C SHUNT = 1nF
10kHz , C SHUNT = 10nF
Figure 17. Output Voltage Ripple vs. Filter Capacitance
Determining LVDT Sensitivity
LVDT sensitivity can be determined by measuring the LVDT
secondary voltages as a function of primary drive and core posi-
tion, and performing a simple computation.
Energize the LVDT at its recommended primary drive level,
VPRI (3 V rms for the E100). Set the core to midpoint where
VA = VB. Set the core displacement to its mechanical full-scale
position and measure secondary voltages VA and VB.
Sensitivity
=
VA(at Full Scale )– VB (at Full Scale )
VPRI × d
From Figure 18,
Sensitivity
=
1.71 – 0.99
3
× 100 mils =
2.4 mV/V/mil
d = –100 mils
d = 0
A
V
VB
1.71V rms
0.99V rms
100 mils
+
d =
VSEC WHEN VPRI = 3V rms
Figure 18. LVDT Secondary Voltage vs. Core Displacement
Thermal Shutdown and Loading Considerations
The AD598 is protected by a thermal overload circuit. If the die
temperature reaches 165
°C, the sine wave excitation amplitude
gradually reduces, thereby lowering the internal power dissipa-
tion and temperature.
Due to the ratiometric operation of the decoder circuit, only
small errors result from the reduction of the excitation ampli-
tude. Under these conditions the signal-processing section of
the AD598 continues to meet its output specifications.
The thermal load depends upon the voltage and current deliv-
ered to the load as well as the power supply potentials. An
LVDT Primary will present an inductive load to the sine wave
excitation. The phase angle between the excitation voltage and
current must also be considered, further complicating thermal
calculations.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD598AD | 制造商:Analog Devices 功能描述:SEMICONDUCTORS LINEAR |
| AD598J | 制造商:AD 制造商全称:Analog Devices 功能描述:LVDT Signal Conditioner |
| AD598JR | 功能描述:IC LVDT SGNL COND OSC/REF 20SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| AD598JRZ | 功能描述:IC LVDT SGNL COND OSC/REF 20SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| AD598JRZ | 制造商:Analog Devices 功能描述:Signal Conditioner IC |
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