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LMP7701MFX Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LMP7701MFX Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 6 page  LMP7701 Precision, CMOS Input, RRIO, Wide Supply Range Amplifier General Description The LMP7701 is a single, low offset voltage, rail-to-rail input and output precision amplifier with a CMOS input stage and a wide supply voltage range. The LMP7701 is part of the LMP™ precision amplifier family and is ideal for sensor interface and other instrumentation applications. The guaranteed low offset voltage of less than ±200 µV along with the guaranteed low input bias current of less than ±10 pA make the LMP7701 ideal for precision applications. The LMP7701 is built utilizing VIP50 technology, which al- lows the combination of a CMOS input stage and a 12V common mode and supply voltage range. This makes the LMP7701 a great choice in many applications where con- ventional CMOS parts cannot operate under the desired voltage conditions. The LMP7701 has a rail-to-rail input stage that significantly reduces the CMRR glitch commonly associated with rail-to- rail input amplifiers. This is achieved by trimming both sides of the complimentary input stage, thereby reducing the dif- ference between the NMOS and PMOS offsets. The output of the LMP7701 swings within 40 mV of either rail to maxi- mize the signal dynamic range in applications requiring low supply voltage. The LMP7701 is offered in space saving SOT23-5. This small package is an ideal solution for area constrained PC boards and portable electronics. Features Unless otherwise noted, typical values at V S =5V n Input offset voltage ±200 µV (max) n Input bias current 300 fA n Input voltage noise 12 nV/ n CMRR 100 dB n Open loop gain 130 dB n Temperature range –40˚C to 125˚C n Unity gain bandwidth 2.5 MHz n Supply current 715 µA n Supply Voltage Range 2.7V to 12V n Rail-to-rail input and output Applications n High impedance sensor interface n Battery powered instrumentation n High gain amplifiers n DAC buffer n Instrumentation amplifier n Active filters Typical Application 20127305 Precision Current Source LMP™ is a trademark of National Semiconductor Corporation. PRELIMINARY September 2005 © 2005 National Semiconductor Corporation DS201273 www.national.com |
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