datasheet of lm741

LM74 Operational Amplifier
General Description
The LM741 series are general purpose operational amplifiers which feature improved performance over industry standards like the LM709. They are direct, plugin replacement for the 709C, LM201, MC1439 and 748 in most applications.
The amplifiers offer many features which make their application nearly foolproof: overload protection on the input and output, no latch-up when the common mode range is exceeded, as well as freedom from oscillations.

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datasheet of mosfet irf640n

 Description
Fifth Generation  HEXFET® Power MOSFETs  from International Rectifier utilize advanced processing techniques to achieve extremely low  on-resistance per silicon area.  This benefit, combined with the fast switching speed and ruggedized device design that HEXFET Power
MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications.

datasheet of mosfet irf640n

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datasheet of ka331

KA331 V-F Converter

Features
• Guaranteed linearity: 0.01% max.
• Low power dissipation: 15mW at 5V
• Wide range of full scale frequency: 1Hz to 100KHz
• Pulse output compatible with all logic forms
• Wide dynamic range: 100dB min at 10KHz full scale frequency.

Description
This voltage to frequency converter provides  the  output
pulse train at a frequency  precisely  proportional  to  the
applied input voltage. The KA331 can operate  at  power
supplies as low as 4.0V and be changed output frequency
from 1Hz to 100KHz. It is ideally suited for use in  simple
low-cost  circuit  for analog-to digital  conversion,  long term
integration, linear  frequency modulation or  demodulation,
frequency-to-voltage conversion, and many other functions.

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mmbt3904

2N3904 / MMBT3904 / PZT3904 NPN General Purpose Amplifier
Features
• This device is designed as a general purpose amplifier and switch.
• The useful dynamic range extends to 100 mA as a switch and to 100 MHz as an amplifier.

 

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