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ISL28408

更新时间： 2024-11-04 11:11:51
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英特矽尔 - INTERSIL 运算放大器
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32页 1598K
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40V Precision Single Supply Rail-Rail Output Low Power Operational Amplifiers

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40V Precision Single Supply Rail-Rail Output Low  
Power Operational Amplifiers  
ISL28108, ISL28208, ISL28408  
Features  
The ISL28108, ISL28208 and ISL28408 are single, dual and  
quad low power precision amplifiers optimized for single  
supply applications. These devices feature a common mode  
input voltage range extending to 0.5V below the V- rail, a  
rail-to-rail differential input voltage range for use as a  
comparator, and rail-to-rail output voltage swing, which make  
them ideal for single supply applications where input  
operation at ground is important.  
• Single or Dual Supply, Rail-to-Rail Output and Below Ground  
(V-) input capability  
• Rail-to-rail Input Differential Voltage Range for Comparator  
Applications  
• Single Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 40V  
• Low Current Consumption (VS = ±5V) . . . . . . . . . . . . . . 165µA  
• Low Noise Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 15.8nV/√Hz  
• Low Noise Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 80fA/√Hz  
• Low Input Offset Voltage (ISL28108) . . . . . . . . . . . . . . 150µV  
• Superb Temperature Drift  
Added features include low offset voltage, and low  
temperature drift making them the ideal choice for  
applications requiring high DC accuracy. The output stage is  
capable of driving large capacitive loads from rail to rail for  
excellent ADC driving performance. The devices can operate  
for single or dual supply from 3V (±1.5V) to 40V (±20V) and are  
fully characterized at ±5V and ±15V. The combination of  
precision, low power, and small footprint provides the user with  
outstanding value and flexibility relative to similar competitive  
parts.  
- Voltage Offset TC . . . . . . . . . . . . . . . . . . . . . . 0.1µV/°C, Typ  
• Low Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . -13nA Typ  
• Operating Temperature Range. . . . . . . . . . .-40°C to +125°C  
• No Phase Reversal  
Applications  
• Precision Instruments  
• Medical Instrumentation  
• Data Acquisition  
Applications for these amplifiers include precision  
instrumentation, data acquisition, precision power supply  
control, and industrial control.  
The ISL28108 single is offered in 8 Ld TDFN, SOIC and MSOP  
packages. The ISL28208 dual amplifier is offered in 8 Ld  
TDFN, MSOP, and SOIC packages. The ISL28408 is offered in  
14 Ld SOIC package. All devices are offered in standard pin  
configurations and operate over the extended temperature  
range to -40°C to +125°C.  
• Power Supply Control  
• Industrial Process Control  
Related Literature  
• AN1658, “ISL28208SOICEVAL2Z Evaluation Board User  
Guide”  
R
F
500  
100kΩ  
LOAD  
V
= ±15V  
S
400  
300  
200  
100  
0
+3V  
R
-
IN  
IN-  
to 40V  
-
V
OUT  
+125°C  
V+  
ISL28108  
10kΩ  
R
SENSE  
+25°C  
-40°C  
R
+
V-  
IN  
IN+  
+
10kΩ  
GAIN = 10  
-100  
-200  
-300  
-400  
-500  
R
+
REF  
100kΩ  
V
REF  
-16  
-15.5 -15 -14.5 -14 13 13.5  
14  
14.5  
15  
SINGLE-SUPPLY, LOW-SIDE  
CURRENT SENSE AMPLIFIER  
INPUT COMMON MODE VOLTAGE (V)  
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE  
VOLTAGE, VS = ±15V  
FIGURE 1. TYPICAL APPLICATION CIRCUIT  
November 1, 2011  
FN6935.3  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. 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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