LME49721MA+ National Semiconductor, LME49721MA+ Datasheet

LME49721MA+

Manufacturer Part Number

LME49721MA+

Description

Manufacturer

National Semiconductor

Datasheets

1.LME49721MA.pdf (26 pages)

2.LME49721MA.pdf (26 pages)

Specifications of LME49721MA+

Notes

NEW

Date_code

10+

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LME49721

High Performance, High Fidelity Rail-to-Rail Input/Output

Audio Operational Amplifier

General Description

The LME49721 is a low distortion, low noise Rail-to-Rail Input/

Output operational amplifier optimized and fully specified for

high performance, high fidelity applications. Combining ad-

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

circuit design, the LME49721 Rail-to-Rail Input/Output oper-

ational amplifier delivers superior signal amplification for out-

standing performance. The LME49721 combines a very high

slew rate with low THD+N to easily satisfy demanding appli-

cations. To ensure that the most challenging loads are driven

without compromise, the LME49721 has a high slew rate of

±8.5V/μs and an output current capability of ±9.7mA. Further,

dynamic range is maximized by an output stage that drives

10kΩ loads to within 10mV of either power supply voltage.

The LME49721 has a wide supply range of 2.2V to 5.5V. Over

this supply range the LME49721’s input circuitry maintains

excellent common-mode and power supply rejection, as well

as maintaining its low input bias current. The LME49721 is

unity gain stable.

Key Specifications

Typical Connection, Pinout, and Package Marking

■

THD+N (A

■

Power Supply Voltage Range

Quiescent Current

Input Noise Density

Slew Rate

= 2kΩ

= 600Ω

= 2, V

FIGURE 1. Buffer Amplifier

OUT

= 4V

p-p

, f

= 1kHz)

4nV/

202049

√

20204909

Hz (typ), @ 1kHz

0.00008% (typ)

0.0001% (typ)

±8.5V/μs (typ)

2.15mA (typ)

2.2V to 5.5V

Features

■

Applications

■

Rail-to-rail Input and Output

Easily drives 10kΩ loads to within 10mV of each power

supply voltage

Optimized for superior audio signal fidelity

Output short circuit protection

Ultra high quality portable audio amplification

High fidelity preamplifiers

High fidelity multimedia

State of the art phono pre amps

High performance professional audio

High fidelity equalization and crossover networks

High performance line drivers

High performance line receivers

High fidelity active filters

DAC I–V converter

ADC front-end signal conditioning

Gain Bandwidth Product

Open Loop Gain (R

Input Bias Current

Input Offset Voltage

PSRR

Se NS Package Number M08A

Order Number LME49721MA

= 600Ω)

www.national.com

October 2007

20MHz (typ)

118dB (typ)

0.3mV (typ)

103dB (typ)

40fA (typ)

20204910

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