Overview
The OPA1662AIDR is a dual-channel, low-power, low-noise, and low-distortion audio operational amplifier from Texas Instruments. It is part of the SoundPlus™ series, designed to offer high performance in audio applications. The OPA1662AIDR features bipolar inputs and is known for its ultra-low noise density of 3.3nV/√Hz at 1kHz and extremely low distortion of 0.00006% at 1kHz. This op amp is unity-gain stable and provides a wide gain bandwidth of 22MHz, making it suitable for a variety of high-fidelity audio systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Noise Density | 3.3 | nV/√Hz at 1kHz |
| Distortion | 0.00006% | at 1kHz |
| Quiescent Current | 1.5 | mA per channel |
| Slew Rate | 17 | V/μs |
| Gain Bandwidth | 22 | MHz (G = +1) |
| Supply Range | ±1.5V to ±18V or 3V to 36V | |
| Output Voltage | (V–) + 0.6 to (V+) – 0.6 | V (RL = 2kΩ) |
| Output Current | ±30 | mA |
| Common-Mode Rejection Ratio (CMRR) | 86 to 100 | dB |
| Operating Temperature Range | –40°C to +85°C | |
| Package Type | SOIC-8, VSSOP-8 |
Key Features
- Low noise: 3.3nV/√Hz at 1kHz
- Low distortion: 0.00006% at 1kHz
- Low quiescent current: 1.5mA per channel
- High slew rate: 17V/μs
- Wide gain bandwidth: 22MHz (G = +1)
- Unity gain stable
- Rail-to-rail output
- Wide supply range: ±1.5V to ±18V or 3V to 36V
- Dual and quad versions available
- Small package sizes: SOIC-8 and VSSOP-8 for dual, SOIC-14 and TSSOP-14 for quad
Applications
- USB and FireWire audio systems
- Analog and digital mixers
- Portable recording systems
- Audio effects processors
- High-end A/V receivers
- High-end DVD and Blu-Ray players
- High-end car audio systems
Q & A
- What is the noise density of the OPA1662AIDR?
The noise density of the OPA1662AIDR is 3.3nV/√Hz at 1kHz.
- What is the distortion level of the OPA1662AIDR?
The distortion level of the OPA1662AIDR is 0.00006% at 1kHz.
- What is the quiescent current per channel for the OPA1662AIDR?
The quiescent current per channel for the OPA1662AIDR is 1.5mA.
- What is the slew rate of the OPA1662AIDR?
The slew rate of the OPA1662AIDR is 17V/μs.
- What is the gain bandwidth of the OPA1662AIDR?
The gain bandwidth of the OPA1662AIDR is 22MHz (G = +1).
- Is the OPA1662AIDR unity-gain stable?
Yes, the OPA1662AIDR is unity-gain stable.
- What is the output voltage range of the OPA1662AIDR?
The output voltage range of the OPA1662AIDR is from (V–) + 0.6V to (V+) – 0.6V with a 2kΩ load.
- What are the typical applications of the OPA1662AIDR?
The OPA1662AIDR is typically used in USB and FireWire audio systems, analog and digital mixers, portable recording systems, audio effects processors, high-end A/V receivers, high-end DVD and Blu-Ray players, and high-end car audio systems.
- What are the available package types for the OPA1662AIDR?
The OPA1662AIDR is available in SOIC-8 and VSSOP-8 packages.
- What is the operating temperature range of the OPA1662AIDR?
The operating temperature range of the OPA1662AIDR is from –40°C to +85°C.
