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ISL28208

更新时间： 2024-11-05 11:11:47
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英特矽尔 - INTERSIL 运算放大器
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25页 1488K
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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  
Features  
The ISL28108 and ISL28208 are single and dual 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. . . . . . . . . . . . . . . . . . . . . . . . . 230µV  
• 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 for these amplifiers include precision  
instrumentation, data acquisition, precision power supply  
control, and industrial control.  
Applications  
• Precision Instruments  
• Medical Instrumentation  
• Data Acquisition  
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. 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  
R
F
100kΩ  
LOAD  
500  
+3V  
to 40V  
R
-
IN  
V
= ±15V  
IN-  
S
-
400  
300  
200  
100  
0
V
OUT  
V+  
10kΩ  
R
SENSE  
ISL28108  
+125°C  
+25°C  
R
+
V-  
IN  
IN+  
-40°C  
+
10kΩ  
GAIN = 10  
R
+
REF  
-100  
-200  
-300  
-400  
-500  
100kΩ  
V
REF  
-16  
-15.5 -15 -14.5 -14 13 13.5  
14  
14.5  
15  
INPUT COMMON MODE VOLTAGE (V)  
SINGLE-SUPPLY, LOW-SIDE CURRENT SENSE AMPLIFIER  
FIGURE 1. TYPICAL APPLICATION CIRCUIT  
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE  
VOLTAGE, VS = ±15V  
March 17, 2011  
FN6935.1  
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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