Overview
The OPA1632DGNR, produced by Texas Instruments, is a high-performance, fully differential audio operational amplifier. It is designed to deliver exceptional audio quality with very low noise, large output voltage swing, and high current drive. This amplifier is particularly suited for driving high-performance audio analog-to-digital converters (ADCs) or as a predriver for class-D amplifiers. The OPA1632DGNR features a fully differential architecture, which converts single-ended inputs to balanced differential outputs, reducing even-order harmonics and minimizing common-mode noise interference.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Supply Voltage | ±2.5 V to ±15 V | V |
| Input Voltage Noise | 1.25 nV/√Hz | nV/√Hz |
| Slew Rate | 72 V/μs | V/μs |
| Gain Bandwidth Product | 180 MHz | MHz |
| Total Harmonic Distortion + Noise (THD+N) | 0.000028% (Differential Input/Output, RL = 2 kΩ) | % |
| Output Current | 150 mA | mA |
| Junction Temperature | -40°C to +85°C | °C |
| Shutdown Current | 0.85 mA (VS = ± 5 V) | mA |
| Package | SO-8, HVSSOP-8 PowerPAD™ |
Key Features
- Excellent sound quality with ultra-low distortion (0.000028% THD+N at differential input/output and RL = 2 kΩ)
- Very low input voltage noise of 1.25 nV/√Hz
- High speed with a slew rate of 72 V/μs and gain bandwidth product of 180 MHz
- Fully differential architecture for balanced input and output, converting single-ended inputs to differential outputs
- Wide supply range from ±2.5 V to ±15 V
- Shutdown feature to conserve power when not in use
- Operating temperature range from -40°C to +85°C
Applications
- Professional audio mixers or control surfaces
- Professional microphones and wireless systems
- Professional speaker systems and audio amplifiers
- Soundbars and turntables
- Professional video cameras
- Guitar and other instrument amplifiers
- Data acquisition (DAQ) systems
Q & A
- What is the primary function of the OPA1632DGNR? The OPA1632DGNR is a fully differential amplifier designed to drive high-performance audio analog-to-digital converters (ADCs) or as a predriver for class-D amplifiers.
- What are the key benefits of the fully differential architecture? The fully differential architecture reduces even-order harmonics and minimizes common-mode noise interference, providing better signal-to-noise ratio and dynamic range.
- What is the typical input voltage noise of the OPA1632DGNR? The typical input voltage noise is 1.25 nV/√Hz.
- What is the slew rate of the OPA1632DGNR? The slew rate is 72 V/μs.
- What is the gain bandwidth product of the OPA1632DGNR? The gain bandwidth product is 180 MHz.
- What are the typical applications of the OPA1632DGNR? Typical applications include professional audio mixers, microphones, speaker systems, soundbars, turntables, professional video cameras, guitar amplifiers, and data acquisition systems.
- What is the operating temperature range of the OPA1632DGNR? The operating temperature range is from -40°C to +85°C.
- Does the OPA1632DGNR have a shutdown feature? Yes, it includes a shutdown feature to save power when the device is not in use.
- What are the available packages for the OPA1632DGNR? The OPA1632DGNR is available in SO-8 and HVSSOP-8 PowerPAD™ packages.
- What is the maximum output current of the OPA1632DGNR? The maximum output current is 150 mA.
