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LMV344MTX Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LMV344MTX Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 17 page  LMV341/LMV342/LMV344 Single with Shutdown/Dual/Quad General Purpose, 2.7V, Rail-to-Rail Output, 125˚C, Operational Amplifiers General Description The LMV341/342/344 are single, dual, and quad low volt- age, and low power Operational Amplifiers. They are de- signed specifically for low voltage portable applications. Other important product characteristics are low input bias current, rail-to-rail output, and wide temperature range. The patented class AB turnaround stage significantly re- duces the noise at higher frequencies, power consumption, and offset voltage. The PMOS input stage provides the user with ultra-low input bias current of 20fA (typical) and high input impedance. The industrial-plus temperature range of -40˚C to 125˚C allows the LMV341/342/344 to accommodate a broad range of extended environment applications. LMV341 expands Na- tional Semiconductor’s Silicon Dust™ amplifier portfolio of- fering enhancements in size, speed, and power savings. The LMV341/342/344 are guaranteed to operate over the voltage range of 2.7V to 5.0V and all have rail-to-rail output. The LMV341 offers a shutdown pin that can be used to disable the device. Once in shutdown mode, the supply current is reduced to 45pA (typical). The LMV341/342/344 have 29nV Voltage Noise at 10KHz, 1MHz GBW, 1.0V/µs Slew Rate, 0.25mVos, and 0.1µA shutdown current (LMV341.) The LMV341 is offered in the tiny SC70-6L package, the LMV342 in space saving MSOP-8 and SOIC-8, and the LMV344 in TSSOP-14 and SOIC-14. These small package amplifiers offer an ideal solution for applications requiring minimum PC board footprint. Applications with area con- strained PC board requirements include portable electronics such as cellular handsets and PDAs. Features (Typical 2.7V Supply Values;Unless Otherwise Noted) n Guaranteed 2.7V and 5V specifications n Input referred voltage noise (@10kHz) 29nV/ n Supply current (per amplifier) 100µA n Gain bandwidth product 1.0MHz n Slew rate 1.0V/µs n Shutdown Current (LMV341) 45pA n Turn-on time from shutdown (LMV341) 5µs n Input bias current 20fA Applications n Cordless/cellular phones n Laptops n PDAs n PCMCIA/Audio n Portable/battery-powered electronic equipment n Supply current monitoring n Battery monitoring n Buffer n Filter n Driver Connection Diagram SC70-6L 20030441 Top View Order Number LMV341MG, LMV341MGX LMV342MM, LMV342MMX LMV342MA, LMV342MAX LMV344MT, LMV344MTX LMV344MA, LMV344MAX Sample and Hold Circuit 20030444 March 2003 © 2003 National Semiconductor Corporation DS200304 www.national.com |
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