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ISL70517SEH

更新时间： 2024-11-26 01:15:15
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英特矽尔 - INTERSIL /
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27页 1311K
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Precision test and measurement

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ISL70517SEH 数据手册

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DATASHEET  
36V Radiation Tolerant Precision Instrumentation  
Amplifier with Rail-to-Rail Output ADC Driver  
ISL70517SEH  
Features  
The ISL70517SEH is a high performance, differential input,  
single-ended output instrumentation amplifier designed for  
precision analog-to-digital applications. It can operate over a  
supply range of 8V (±4V) to 36V (±18V) and features a  
differential input voltage range up to ±30V. The output stage  
has rail-to-rail output drive capability optimized for ADC driver  
applications. The output stage is powered by separate  
supplies. This feature enables the output to be driven by the  
same low voltage supplies powering the ADC, thereby  
providing protection from high voltage signals and low voltage  
digital circuits. Its versatility makes it suitable for a variety of  
general purpose applications. Additional features not found in  
other instrumentation amplifiers enable high levels of DC  
precision and excellent AC performance.  
• Rail-to-rail single-ended output ADC driver  
• Low input offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30µV  
• Input bias current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2nA  
• Excellent CMRR and PSRR . . . . . . . . . . . . . . . . . . . . . . 120dB  
• Wide operating voltage range . . . . . . . . . . . . . . . ±4V to ±18V  
• Closed loop -3dB BW 0.3MHz (AV = 1k) to 5.5MHz (AV = 0.1)  
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C  
• Electrically screened to DLA SMD# 5962-15246  
• Acceptance tested to 75krad(Si) (LDR) wafer-by-wafer  
• Radiation tolerance  
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . . 75krad(Si)  
- SEB LETTH (VS = ±18V). . . . . . . . . . . . . . . 60MeV•cm2/mg  
The gain of the ISL70517SEH can be programmed from 0.1 to  
10,000 via two external resistors, RIN and RFB. The gain  
accuracy is determined by the matching of RIN and RFB. The  
gain resistors have Kelvin sensing, which removes gain error  
due to PC trace resistance. The input and output stages have  
individual power supply pins, which enable input signals riding  
on a high, common-mode voltage to be level-shifted to a low  
voltage device, such as an A/D converter. The rail-to-rail output  
stage can be powered from the same supplies as the ADC,  
which preserves the ADC maximum input dynamic range and  
eliminates ADC input overdrive.  
Applications  
• ADC driver  
• Precision test and measurement  
• High voltage process control  
• Signal conditioning for remote powered sensors  
• Satellite communication  
Related Literature  
• For a full list of related documents, visit our website  
- ISL70517SEH product page  
The ISL70517SEH is offered in a 24 Ld ceramic flatpack  
package with an operating temperature range of -55°C to  
+125°C.  
SIGNAL WITH  
+18V  
HIGH VCM  
IN+  
VCC  
+RIN  
GAIN = 10  
5V  
VCO  
RIN  
V
+VFB  
-RIN  
ISL70517SEH  
CC  
CH 1  
VOUT  
+RFB  
VREF  
VEO  
RFB  
-RFB  
VEE  
V
IN-  
CC  
-18V  
+18V  
HIGH V  
IN  
SIGNAL  
IN  
RHADC  
GND  
5V  
V
REF  
IN+  
VCC  
GAIN = 0.1  
+VFB  
+RIN  
VCO  
RIN  
-RIN  
CH 16  
ISL70517SEH  
VOUT  
+RFB  
VREF  
VEO  
GND  
RFB  
ISL71090SEH25  
-RFB  
VEE  
IN-  
18V  
ISL71090SEH25  
FIGURE 1. COMPLETE SPACE GRADE ANALOG SIGNAL CHAIN  
December 15, 2016  
FN8699.4  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2015, 2016. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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