Overview
The LME49710MA/NOPB is a high-performance, high-fidelity audio operational amplifier produced by Texas Instruments. This device 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. It combines advanced leading-edge process technology with state-of-the-art circuit design to deliver superior audio signal amplification, making it ideal for demanding audio applications.
Key Specifications
| Parameter | Conditions | Typical | Limit |
|---|---|---|---|
| THD+N (Total Harmonic Distortion + Noise) | AV = 1, VOUT = 3VRMS, RL = 2kΩ | 0.00003% | 0.00009% |
| THD+N (Total Harmonic Distortion + Noise) | AV = 1, VOUT = 3VRMS, RL = 600Ω | 0.00003% | 0.00009% |
| IMD (Intermodulation Distortion) | Two-tone, 60Hz & 7kHz 4:1 | 0.00005% | |
| GBWP (Gain Bandwidth Product) | 55 MHz | 45 MHz | |
| SR (Slew Rate) | ±20 V/μs | ±15 V/μs | |
| FPBW (Full Power Bandwidth) | f = 1kHz | 10 MHz | |
| Input Noise Density | f = 1kHz | 2.5 nV/√Hz | 4.7 nV/√Hz |
| Input Bias Current | VCM = 0V | 7 nA | 72 nA |
| Input Offset Voltage | ±0.05 mV | ±0.7 mV | |
| PSRR (Power Supply Rejection Ratio) | ΔVS = 20V | 125 dB | 110 dB |
| CMRR (Common Mode Rejection Ratio) | 120 dB | ||
| Power Supply Voltage Range | ±2.5V to ±17V | ||
| Output Short Circuit Protection | Yes | ||
| Packages | SOIC, PDIP, TO-99 |
Key Features
- Easily drives 600Ω loads
- Optimized for superior audio signal fidelity
- Output short circuit protection
- PSRR and CMRR exceed 120dB (typ)
- Available in SOIC, PDIP, and TO-99 packages
- Ultra-low voltage noise density (2.5nV/Hz)
- Vanishingly low THD+N (0.00003%)
- High slew rate (±20V/μs)
- High gain bandwidth product (55MHz)
Applications
- Ultra high-quality audio amplification
- High fidelity preamplifiers
- High fidelity multimedia
- State of the art phono preamps
- High performance professional audio
- High fidelity equalization and crossover networks
- High performance line drivers and receivers
- High fidelity active filters
Q & A
- What is the typical THD+N of the LME49710?
The typical THD+N of the LME49710 is 0.00003% for both RL = 2kΩ and RL = 600Ω at AV = 1, VOUT = 3VRMS, and fIN = 1kHz.
- What is the slew rate of the LME49710?
The slew rate of the LME49710 is ±20 V/μs (typ).
- What are the available packages for the LME49710?
The LME49710 is available in SOIC, PDIP, and TO-99 packages.
- What is the input noise density of the LME49710?
The input noise density of the LME49710 is 2.5 nV/√Hz (typ) at f = 1kHz.
- Does the LME49710 have output short circuit protection?
Yes, the LME49710 has output short circuit protection.
- What is the power supply voltage range for the LME49710?
The power supply voltage range for the LME49710 is ±2.5V to ±17V.
- What are some typical applications of the LME49710?
The LME49710 is typically used in ultra high-quality audio amplification, high fidelity preamplifiers, high fidelity multimedia, state of the art phono preamps, and other high-performance audio applications.
- Is the LME49710 still in production?
The LME49710 has been subject to end-of-life notices, but availability can vary. It is advisable to check with the manufacturer or distributors for the latest information.
- What are the key performance metrics of the LME49710?
The LME49710 is characterized by its ultra-low distortion, low noise, high slew rate, and high gain bandwidth product, making it suitable for demanding audio applications.
- How does the LME49710 perform in terms of PSRR and CMRR?
The LME49710 has a PSRR and CMRR that exceed 120dB (typ), ensuring excellent common-mode and power supply rejection.
