Overview
The OPA1664AIDR is a quad-channel, low-power, low-noise, and low-distortion audio operational amplifier from Texas Instruments. It is part of the SoundPlus™ series, known for its high performance in audio applications. This device is available in a 14-pin SOIC (D) package and is designed to offer excellent dynamic behavior, rail-to-rail output swing, and high output drive capability. The OPA1664AIDR operates over a wide supply range of ±1.5V to ±18V or 3V to 36V, making it versatile for various audio systems.
Key Specifications
| Parameter | Value |
|---|---|
| Noise Density | 3.3 nV/√Hz at 1 kHz |
| Distortion | 0.00006% at 1 kHz |
| Quiescent Current per Channel | 1.5 mA |
| Slew Rate | 17 V/μs |
| Gain Bandwidth | 22 MHz (G = +1) |
| Supply Range | ±1.5V to ±18V or 3V to 36V |
| Output Voltage Swing | Rail-to-rail, within 600 mV of supply rails with 2 kΩ load |
| Output Current | ±30 mA |
| Common-Mode Voltage Range | (V–) + 0.5 to (V+) – 1 V |
| Common-Mode Rejection Ratio | 106 dB |
| Operating Temperature Range | –40°C to +85°C |
Key Features
- Low noise: 3.3 nV/√Hz at 1 kHz
- Low distortion: 0.00006% at 1 kHz
- Low quiescent current: 1.5 mA per channel
- High slew rate: 17 V/μs
- Wide gain bandwidth: 22 MHz (G = +1)
- Unity gain stable
- Rail-to-rail output swing
- High output drive capability: ±30 mA
- Completely independent circuitry for lowest crosstalk
- Wide supply range: ±1.5V to ±18V or 3V to 36V
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
Q & A
- What is the noise density of the OPA1664AIDR?
The noise density of the OPA1664AIDR is 3.3 nV/√Hz at 1 kHz. - What is the distortion level of the OPA1664AIDR?
The distortion level of the OPA1664AIDR is 0.00006% at 1 kHz. - What is the quiescent current per channel of the OPA1664AIDR?
The quiescent current per channel of the OPA1664AIDR is 1.5 mA. - What is the slew rate of the OPA1664AIDR?
The slew rate of the OPA1664AIDR is 17 V/μs. - What is the gain bandwidth of the OPA1664AIDR?
The gain bandwidth of the OPA1664AIDR is 22 MHz (G = +1). - What is the supply range of the OPA1664AIDR?
The supply range of the OPA1664AIDR is ±1.5V to ±18V or 3V to 36V. - Is the OPA1664AIDR unity-gain stable?
Yes, the OPA1664AIDR is unity-gain stable. - What is the output voltage swing of the OPA1664AIDR?
The output voltage swing of the OPA1664AIDR is rail-to-rail, within 600 mV of the supply rails with a 2 kΩ load. - What is the common-mode voltage range of the OPA1664AIDR?
The common-mode voltage range of the OPA1664AIDR is (V–) + 0.5 to (V+) – 1 V. - What are some typical applications of the OPA1664AIDR?
Typical applications include 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.
