LMV341 Datasheet, PDF (1/17 Pages) National Semiconductor (TI) – Single with Shutdown/Dual/Quad General Purpose, 2.7V, Rail-to-Rail Output, 125°C, Operational Amplifiers

March 2003
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
Sample and Hold Circuit
20030441
Top View
Order Number
LMV341MG, LMV341MGX
LMV342MM, LMV342MMX
LMV342MA, LMV342MAX
LMV344MT, LMV344MTX
LMV344MA, LMV344MAX
© 2003 National Semiconductor Corporation DS200304
20030444
www.national.com