型号LME49721
品牌
分类音频运算放大器
描述2 通道、20MHz、RRIO、高保真、高性能音频运算放大器
相关操作
产品概述

参数

Number of channels 2
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5
GBW (typ) (MHz) 20
Slew rate (typ) (V/µs) 8.5
Rail-to-rail In, Out
Vos (offset voltage at 25°C) (max) (mV) 1.5
Iq per channel (typ) (mA) 2.15
Vn at 1 kHz (typ) (nV√Hz) 4
Features Premium Sound, Shutdown
THD + N at 1 kHz (typ) (%) 0.0002
Rating Catalog
Operating temperature range (°C) -40 to 85
Iout (typ) (A) 0.1
Architecture Voltage FB
CMRR (typ) (dB) 93
Input bias current (max) (pA) 1

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • 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

Key Specifications

  • Power Supply Voltage Range: 2.2V to 5.5V
  • Quiescent Current: 2.15mA (typ)
  • THD+N (AV = 2, VOUT = 4Vp-p, f IN = 1kHz)
    • RL = 2kΩ: 0.00008% (typ)
    • RL = 600Ω: 0.0001% (typ)
  • Input Noise Density: 4nV/√Hz (typ), @ 1kHz
  • Slew Rate: ±8.5V/μs (typ)
  • Gain Bandwidth Product: 20MHz (typ)
  • Open Loop Gain (RL = 600Ω): 118dB (typ)
  • Input Bias Current: 40fA (typ)
  • Input Offset Voltage: 0.3mV (typ)
  • PSRR: 103dB (typ)

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说明

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 advanced leading-edge process technology with state-of-the-art circuit design, the LME49721 Rail-to-Rail Input/Output operational amplifier delivers superior signal amplification for outstanding performance. The LME49721 combines a very high slew rate with low THD+N to easily satisfy demanding applications. 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.