LME49870

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SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013

LME49870 44V Single High Performance, High Fidelity Audio Operational Amplifier

Check for Samples: LME49870

1

FEATURES

DESCRIPTION

The LME49870 is part of the ultra-low distortion, low

2

•

Easily Drives 600

Ω Loads

noise, high slew rate operational amplifier series

•

Optimized for Superior Audio Signal Fidelity

optimized and fully specified for high performance,

•

Output Short Circuit Protection

high

fidelity

applications.

Combining

advanced

leading-edge process technology with state-of-the-art

•

PSRR and CMRR Exceed 120dB (Typ)

circuit design, the LME49870 audio operational

amplifier delivers superior audio signal amplification

APPLICATIONS

for outstanding audio performance. The LME49870

•

High Quality Audio Amplification

combines

extremely

low

voltage

noise

density

(2.7nV/

√Hz) with vanishingly low THD+N (0.00003%)

•

High Fidelity Preamplifiers, Phono Preamps,

to

easily

satisfy

the

most

demanding

audio

and Multimedia

applications. To ensure that the most challenging

•

High Performance Professional Audio

loads are driven without compromise, the LME49870

•

High Fidelity Equalization and Crossover

has a high slew rate of ±20V/

μs and an output current

Networks with Active Filters

capability of ±26mA. Further, dynamic range is

maximized by an output stage that drives 2k

Ω loads

•

High Performance Line Drivers and Receivers

to within 1V of either power supply voltage and to

•

Low Noise Industrial Applications Including

within 1.4V when driving 600

Ω loads.

Test, Measurement, and Ultrasound

The LME49870's outstanding CMRR (120dB), PSRR

KEY SPECIFICATIONS

operational amplifier DC performance.

•

Power Supply Voltage Range: ±2.5V to ±22V

The LME49870 has a wide supply range of ±2.5V to

•

THD+N

±22V.

Over

this

supply

range

the

LME49870

–

maintains excellent common-mode rejection, power

supply rejection, and low input bias current. The

–

LME49870

is

unity

gain

stable.

This

Audio

•

Input Noise Density: 2.7nV/

√Hz (Typ)

Operational

Amplifier

achieves

outstanding

AC

•

Slew Rate: ±20V/

μs (Typ)

performance while driving complex loads with values

as high as 100pF.

•

Gain Bandwidth Product: 55MHz (Typ)

•

The LME49870 is available in 8–lead narrow body

SOIC. Demonstration boards are available for each

•

Input Bias Current: 10nA (Typ)

package.

•

Input Offset Voltage: 0.1mV (Typ)

•

DC Gain Linearity Error: 0.000009%

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.