- 制造厂商:TI
- 产品类别:放大器
- 技术类目:运算放大器 (op amps) - 音频运算放大器
- 功能描述:2 通道、20MHz、RRIO、高保真、高性能音频运算放大器
- 点击这里打开及下载LME49721的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
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 10k? 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.
- Rail-to-Rail Input and Output
- Easily Drives 10k? Loads to Within 10mV of Each Power Supply Voltage
- Optimized for Superior Audio Signal Fidelity
- Output Short Circuit Protection
- 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 = 2k?: 0.00008% (typ)
- RL = 600?: 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 = 600?): 118dB (typ)
- Input Bias Current: 40fA (typ)
- Input Offset Voltage: 0.3mV (typ)
- PSRR: 103dB (typ)
All trademarks are the property of their respective owners.
- Number of channels (#)
- 2
- Total supply voltage (Min) (+5V=5, +/-5V=10)
- 2.2
- Total supply voltage (Max) (+5V=5, +/-5V=10)
- 5.5
- GBW (Typ) (MHz)
- 20
- Slew rate (Typ) (V/us)
- 8.5
- Rail-to-rail
- In, Out
- Vos (offset voltage @ 25 C) (Max) (mV)
- 1.5
- Iq per channel (Typ) (mA)
- 2.15
- Vn at 1 kHz (Typ) (nV/rtHz)
- 4
- Features
- Premium Sound, Shutdown
- THD + N @ 1 kHz (Typ) (%)
- 0.0002
- Rating
- Catalog
- Operating temperature range (C)
- -40 to 85
- Output current (Typ) (mA)
- 100
- Architecture
- Voltage FB
- CMRR (Typ) (dB)
- 93
- Input bias current (Max) (pA)
- 1
LME49721的完整型号有:LME49721MA/NOPB、LME49721MAX/NOPB,以下是这些产品的关键参数及官网采购报价:
LME49721MA/NOPB,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:95个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LME49721MA/NOPB的批量USD价格:0.697(1000+)
LME49721MAX/NOPB,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LME49721MAX/NOPB的批量USD价格:0.436(1000+)
LME49721 PSpice Model
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
TINA-TI — 基于 SPICE 的模拟仿真程序
TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。
TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。
如需获取可用 TINA-TI 模型的完整列表,请参阅:SpiceRack - 完整列表
需要 HSpice (...)
ANALOG-ENGINEER-CALC — 模拟工程师计算器
模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算的列表(从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件)。除了可用作单独的工具之外,该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。 lock = 需要出口许可(1分钟)