Overview
The LME49724MRX/NOPB, produced by Texas Instruments, is an ultra-low distortion, low noise, high slew rate fully-differential operational amplifier. This device is optimized and fully specified for high performance, high fidelity audio applications. It combines advanced leading-edge process technology with state-of-the-art circuit design to deliver superior audio signal amplification. The LME49724 is designed to meet the most demanding audio requirements, featuring extremely low voltage noise density (2.1nV/√Hz) and vanishingly low THD+N (0.00003%).
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Power Supply Voltage Range | ±2.5V to ±18V | |
| THD+N | 0.00003% (typ) | AV = 1, VOUT = 3VRMS, fIN = 1kHz, RL = 2kΩ or 600Ω |
| Input Noise Density | 2.1nV/√Hz (typ) | f = 1kHz |
| Slew Rate | ±18V/μs (typ) | |
| Gain Bandwidth Product | 50 MHz (typ) | |
| Open Loop Gain | 125 dB (typ) | RL = 600Ω |
| Input Bias Current | 60nA (typ) | VCM = 0V |
| Input Offset Voltage | 0.2mV (typ) | |
| CMRR | 102 dB (typ) | –10V < VCM < 10V |
| PSRR | 125 dB (typ) | VS = ±5V to ±15V |
| Maximum Output Voltage Swing | 52V P-P (min) | RL = 600Ω |
| Output Current | ±80mA |
Key Features
- Drives 600Ω loads with full output signal swing
- Optimized for superior audio signal fidelity
- Output short circuit protection
- PSRR and CMRR exceed 100dB (typ)
- Available in SO PowerPad package
- Unity gain stable
- High slew rate of ±18V/μs and output current capability of ±80mA
- Wide supply range of ±2.5V to ±18V
- Excellent common-mode and power supply rejection
- Low input bias current
Applications
- Ultra high quality audio amplification
- High fidelity preamplifiers and active filters
- Simple single-ended to differential conversion
- State of the art D-to-A converters and A-to-D input amplifiers
- Professional audio systems
- High fidelity equalization and crossover networks
- High performance line drivers and receivers
Q & A
- What is the typical THD+N of the LME49724MRX/NOPB?
The typical THD+N is 0.00003% at AV = 1, VOUT = 3VRMS, fIN = 1kHz, and RL = 2kΩ or 600Ω.
- What is the input noise density of the LME49724MRX/NOPB?
The input noise density is 2.1nV/√Hz at f = 1kHz.
- What is the slew rate of the LME49724MRX/NOPB?
The slew rate is ±18V/μs.
- What is the gain bandwidth product of the LME49724MRX/NOPB?
The gain bandwidth product is 50 MHz.
- What is the maximum output voltage swing of the LME49724MRX/NOPB?
The maximum output voltage swing is 52V P-P for RL = 600Ω.
- What is the output current capability of the LME49724MRX/NOPB?
The output current capability is ±80mA.
- What is the CMRR of the LME49724MRX/NOPB?
The CMRR exceeds 100dB, typically 102dB.
- What is the PSRR of the LME49724MRX/NOPB?
The PSRR exceeds 100dB, typically 125dB.
- In what package is the LME49724MRX/NOPB available?
The LME49724MRX/NOPB is available in an SO PowerPad package.
- What are some typical applications of the LME49724MRX/NOPB?
Typical applications include ultra high quality audio amplification, high fidelity preamplifiers, professional audio systems, and high performance line drivers and receivers.
