2-channel, 55-MHz, high-fidelity, high-performance, RRO audio op amp
Product details
Parameters
Package | Pins | Size
Features
- Easily Drives 600Ω Loads
- Optimized for Superior Audio Signal Fidelity
- Output Short Circuit Protection
- PSRR and CMRR Exceed 120dB (typ)
- SOIC, PDIP, TO-99 Metal Can Packages
- Key Specifications
- Power Supply Voltage Range: ±2.5 to ±17V
- THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz):
- RL = 2kΩ: 0.00003% (typ)
- RL = 600Ω: 0.00003% (typ)
- Input Noise Density: 2.7nV/√Hz (typ)
- Slew Rate: ±20V/µs (typ)
- Gain Bandwidth Product: 55MHz (typ)
- Open Loop Gain (RL = 600Ω;): 140dB (typ)
- Input Bias Current: 10nA (typ)
- Input Offset Voltage: 0.1mV (typ)
- DC Gain Linearity Error: 0.000009%
Description
The LME49720 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. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49720 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49720 combines extremely low voltage noise density (2.7nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier datasheet (Rev. D) | Dec. 01, 2016 |
| Technical article | No headroom, no problem: buffering and filtering an audio signal chain in low-voltage systems | Apr. 11, 2019 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
| Technical article | Amp up your cans: Is your op amp stable? (Part 2) | Jan. 22, 2016 | |
| Technical article | Stress-induced outbursts: Microphonics in ceramic capacitors (Part 2) | Dec. 23, 2014 | |
| Technical article | Stress-induced outbursts: Microphonics in ceramic capacitors (Part 1) | Dec. 19, 2014 | |
| User guide | LME49600 Headphone Amplifier Evaluation Board User's Guide (Rev. A) | May 03, 2013 | |
| Application note | Effect of Heavy Loads on Accuracy and Linearity of Op Amp Circuits (Rev. B) | Apr. 22, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. TI's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC (...)
Features
- Dual Audio Operational Amplifier
- Ultra low THD+N of 0.00003%
- 34V operation and low noise
- 600Ohm loads
- SNR 97dB
- High output of 26mA
- Gain Bandwidth Product >55MHz
- 20uV/S Slew rate
- DC Gain Linearity Error of 0.000009%
- PSRR >120dB
- CMRR >120dB
- Vos is 0.1mV
- Three package offerings (SOIC, DIP, and Metal Can)
(...)
Description
The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. TI's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC (...)
Features
- Dual Audio Operational Amplifier
- Ultra low THD+N of 0.00003%
- 34V operation and low noise
- 600Ohm loads
- SNR 97dB
- High output of 26mA
- Gain Bandwidth Product >55MHz
- 20uV/S Slew rate
- DC Gain Linearity Error of 0.000009%
- PSRR >120dB
- CMRR >120dB
- Vos is 0.1mV
- Three package offerings (SOIC, DIP, and Metal Can)
(...)
Description
The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. TI's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC (...)
Features
- Dual Audio Operational Amplifier
- Ultra low THD+N of 0.00003%
- 34V operation and low noise
- 600Ohm loads
- SNR 97dB
- High output of 26mA
- Gain Bandwidth Product >55MHz
- 20uV/S Slew rate
- DC Gain Linearity Error of 0.000009%
- PSRR >120dB
- CMRR >120dB
- Vos is 0.1mV
- Three package offerings (SOIC, DIP, and Metal Can)
(...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| PDIP (P) | 8 | View options |
| SOIC (D) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
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