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ISL28208

更新时间： 2024-11-10 14:57:39
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瑞萨 - RENESAS /
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34页 1992K
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40V Precision Dual Supply Rail-Rail Output Low Power Operational Amplifiers

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DATASHEET  
ISL28108, ISL28208, ISL28408  
40V Precision Single Supply Rail-to-Rail Output Low Power Operational Amplifiers  
FN6935  
Rev 5.00  
March 4, 2014  
The ISL28108, ISL28208 and ISL28408 are single, dual and  
Features  
quad low power precision amplifiers optimized for single  
• Single or dual supply, rail-to-rail output and below ground (V-)  
input capability  
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.  
• 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 provide 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, MSOP and SOIC  
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 of -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  
to 40V  
R
-
IN  
IN-  
-
V
OUT  
+125°C  
V+  
10kΩ  
R
SENSE  
+25°C  
ISL28108  
V-  
-40°C  
R
+
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  
FN6935 Rev 5.00  
March 4, 2014  
Page 1 of 34  
1234567...34

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