LME49720MA

更新时间： 2024-09-16 03:51:43

品牌	Logo	应用领域
美国国家半导体 - NSC		运算放大器光电二极管 PC
页数	文件大小	规格书
34页	1029K
描述
Dual High Performance, High Fidelity Audio Operational Amplifier

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LME49720MA 数据手册

March 2007

LME49720

Dual High Performance, High Fidelity Audio Operational

Amplifier

General Description

R_L= 2kΩ

0.00003% (typ)

2.7nV/√Hz (typ)

±20V/μs (typ)

55MHz (typ)

140dB (typ)

R_L= 600Ω

The LME49720 is part of the ultra-low distortion, low noise,

high slew rate operational amplifier series optimized and fully

specified for high performance, high fidelity applications.

Combining advanced leading-edge process technology with

state-of-the-art circuit design, the LME49720 audio opera-

tional amplifiers deliver superior audio signal amplification for

outstanding audio performance. The LME49720 combines

extremely low voltage noise density (2.7nV/√Hz) with van-

ishingly low THD+N (0.00003%) to easily satisfy the most

demanding audio applications. To ensure that the most chal-

lenging loads are driven without compromise, the LME49720

has a high slew rate of ±20V/μs and an output current capa-

bility of ±26mA. Further, dynamic range is maximized by an

output stage that drives 2kΩ loads to within 1V of either power

supply voltage and to within 1.4V when driving 600Ω loads.

■ꢀInput Noise Density

■ꢀSlew Rate

■ꢀGain Bandwidth Product

■ꢀOpen Loop Gain (R_L= 600Ω)

■ꢀInput Bias Current

■ꢀInput Offset Voltage

■ꢀDC Gain Linearity Error

10nA (typ)

0.1mV (typ)

0.000009%

Features

Easily drives 600Ω loads

■

The LME49720's outstanding CMRR (120dB), PSRR

(120dB), and V_OS(0.1mV) give the amplifier excellent oper-

ational amplifier DC performance.

Optimized for superior audio signal fidelity

Output short circuit protection

PSRR and CMRR exceed 120dB (typ)

SOIC, DIP, TO-99 metal can packages

The LME49720 has a wide supply range of ±2.5V to ±17V.

Over this supply range the LME49720’s input circuitry main-

tains excellent common-mode and power supply rejection, as

well as maintaining its low input bias current. The LME49720

is unity gain stable. This Audio Operational Amplifier achieves

outstanding AC performance while driving complex loads with

values as high as 100pF.

Applications

Ultra high quality audio amplification

■

High fidelity preamplifiers

High fidelity multimedia

The LME49720 is available in 8–lead narrow body SOIC, 8–

lead Plastic DIP, and 8–lead Metal Can TO-99. Demonstra-

tion boards are available for each package.

State of the art phono pre amps

High performance professional audio

High fidelity equalization and crossover networks

Key Specifications

■ꢀPower Supply Voltage Range

High performance line drivers

±2.5V to ±17V

High performance line receivers

High fidelity active filters

■

■ꢀ

THD+N (A_V= 1, V_OUT= 3V_RMS, f_IN= 1kHz)

Typical Application

300038k5

Passively Equalized RIAA Phono Preamplifier

300038

www.national.com

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中文翻译

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与LME49720MA相关器件

型号	品牌	获取价格	描述	数据表
LME49720MA/NOPB	TI	获取价格	LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier
LME49720MAX	TI	获取价格	IC,OP-AMP,DUAL,SOP,8PIN,PLASTIC
LME49720MAX/NOPB	TI	获取价格	LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier
LME49720NA	NSC	获取价格	Dual High Performance, High Fidelity Audio Operational Amplifier
LME49720NA/NOPB	TI	获取价格	LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier
LME49721	NSC	获取价格	High Performance, High Fidelity Rail-to-Rail Input/Output Audio Operational Amplifier
LME49721	TI	获取价格	LME49721 High-Performance, High-Fidelity Rail-to-Rail Input/Output Audio Operational Ampli
LME49721MA	NSC	获取价格	High Performance, High Fidelity Rail-to-Rail Input/Output Audio Operational Amplifier
LME49721MA	TI	获取价格	LME49721 High-Performance, High-Fidelity Rail-to-Rail Input/Output Audio Operational Ampli
LME49721MA/NOPB	NSC	获取价格	IC DUAL OP-AMP, 1500 uV OFFSET-MAX, 20 MHz BAND WIDTH, PDSO8, ROHS COMPLIANT, SOIC-8, Oper

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