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ISL70617SEHF PDF预览

ISL70617SEHF

更新时间： 2024-11-26 00:58:11
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英特矽尔 - INTERSIL /
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28页 1311K
描述
High voltage process control

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ISL70617SEHF 数据手册

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DATASHEET  
36V Radiation Tolerant Precision Instrumentation Amp  
with Rail-to-Rail Output Differential ADC Driver  
ISL70617SEH  
Features  
The ISL70617SEH is a high performance, differential input,  
differential 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 differential  
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 the 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 differential 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  
• 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 ISL70617SEH 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  
- ISL70617SEH product page  
The ISL70617SEH 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  
V
CC  
VCO  
5V  
Ch 1  
R
+VFB  
IN  
-RIN  
ISL70617SEH  
+RFB  
+VOUT  
-VOUT  
-VFB  
Ch 16  
V
R
CMO  
FB  
-RFB  
VEO  
VEE  
V
IN-  
GND  
CC  
-18V  
+18V  
HIGH V  
IN  
IN  
RHADC  
5V  
SIGNAL  
V
REF  
IN+  
GAIN = 0.1  
GND  
VCC  
VCO  
V
+RIN  
CC  
R
IN  
Ch 1  
+VFB  
-RIN  
+VOUT  
ISL70617SEH  
-VOUT  
+RFB  
-VFB  
R
V
Ch 16  
FB  
CMO  
VEO  
-RFB  
VEE  
ISL71090SEH25  
IN-  
GND  
-18V  
ISL71090SEH25  
FIGURE 1. COMPLETE SPACE GRADE ANALOG SIGNAL CHAIN  
December 16, 2016  
FN8697.4  
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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