LMV344IDR.A中文资料德州仪器数据手册PDF规格书

1 Features

• 2.7V and 5V performance

• Rail-to-rail output swing

• Input bias current:1pA (typical)

• Input offset voltage: 0.25mV (typical)

• Low supply current: 100μA (typical)

• Low shutdown current: 45pA (typical)

• Gain bandwidth of 1MHz (typical)

• Slew rate: 1V/μs (typical)

• Turn-on time from shutdown: 5μs (typical)

• Input referred voltage noise (at 10kHz): 20nV/√ Hz

• ESD protection exceeds JESD 22:

– 2000V Human-Body Model (HBM)

– 750V Charged-device model (CDM)

2 Applications

• Cordless and cellular phones

• Consumer electronics (laptops, PDAs)

• Audio preamplifiers for voice

• Portable, battery-powered electronic equipment

• Supply-current monitoring

• Battery monitoring

• Buffers

• Filters

• Drivers

3 Description

The LMV34x devices are single, dual, and quad

CMOS operational amplifiers, respectively, with low

voltage, low power, and rail-to-rail output swing

capabilities. The PMOS input stage offers an ultralow

input bias current of 1pA (typical) and an

offset voltage of 0.25mV (typical). The single-supply

amplifier is designed specifically for low-voltage

(2.7V to 5V) operation, with a wide common-mode

input voltage range that typically extends from –0.2V

to 0.8V from the positive supply rail. The LMV341

(single) also offers a shutdown ( SHDN) pin that can

be used to disable the device. In shutdown mode, the

supply current is reduced to 33nA (typical). Additional

features of the family are a 20nV/√ Hz voltage noise

at 10kHz, 1MHz unity-gain bandwidth, 1V/μs slew

rate, and 100μA current consumption per channel.

Offered in both the SOT-23 and smaller SC70

packages, the LMV341 is suitable for the most spaceconstraint

applications. The LMV342 dual device is

offered in the standard SOIC and VSSOP packages.

An extended industrial temperature range from –40°C

to 125°C makes these devices suitable in a wide

variety of commercial and industrial environments.