Product category:
Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: LMV951
Edited by the Electronicstalk Editorial
Team on 01 December 2006
Rail-to-rail op amp boasts big bandwidth
National's LMV951 is the only 1V operational amplifier capable of delivering 2.7MHz unity-gain bandwidth and maintaining its stability when driving a 500pF capacitive load.
National Semiconductor has expanded its high-performance low voltage and low-power portfolio with the industry's highest-bandwidth 1V rail-to-rail input and output CMOS operational amplifier The LMV951's combination of bandwidth and low power make it well-suited for cellphones, handheld devices, portable medical equipment and low-power instrumentation
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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National's LMV951 is the only 1V operational amplifier capable of delivering 2.7MHz unity-gain bandwidth and maintaining its stability when driving a 500pF capacitive load.
It features low voltage noise of 25nV/(rt)Hz across a temperature range from -40 to +125C.
These features, coupled with a common-mode rejection ratio (CMRR) of 77dB and a power supply rejection ratio (PSRR) of 85dB, make the op amp suitable for applications requiring higher gain and performance.
The high CMRR also works well for noninverting configurations.
The LMV951 operates from a supply voltage of 1 to 3V with rail-to-rail I/O.
The op amp's rail-to-rail output maintains its dynamic range at low voltages.
The LMV951's output is buffered, making it independent of resistive loads which enable better gain linearity and lower distortion.
Its rail-to-rail input also allows it to be used in low-voltage applications requiring a high signal-to-noise ratio (SNR).
For power-sensitive applications, the amp has a separate shutdown pin that reduces the supply current to 1uA.
Built on National's proprietary VIP50 BiCMOS process technology, the LMV951 joins a family of 15 precision and low-voltage, low-power amplifiers introduced in the past year to dramatically improve accuracy, power consumption and voltage noise.
The LMV951 is available now for US $0.78 in 1000-unit quantities.
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