Overview
The OPA1612AIDRGR is a high-performance, bipolar-input audio operational amplifier produced by Texas Instruments. This device is part of the SoundPlus™ series, known for its superior sound quality, ultralow noise, and low distortion. The OPA1612 is available in both single (OPA1611) and dual (OPA1612) versions, with the dual version featuring completely independent circuitry to minimize crosstalk and interactions between channels. These amplifiers operate over a wide supply range of ±2.25 V to ±18 V and are specified from –40°C to +85°C, making them versatile for various audio applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SON-8 (DRG) |
| Pins | 8 |
| Operating Temperature Range (°C) | –40 to 85 |
| Supply Voltage Range | ±2.25 V to ±18 V |
| Quiescent Current per Channel (Typ) | 3.6 mA |
| Noise Density at 1 kHz (Typ) | 1.1 nV/√Hz |
| Total Harmonic Distortion (THD) at 1 kHz (Typ) | 0.000015% |
| Slew Rate (Typ) | 27 V/μs |
| Bandwidth (Typ) at G = +1 | 40 MHz |
| Open-Loop Gain (Typ) | 130 dB |
| Output Current (Typ) | ±30 mA |
| Common Mode Rejection Ratio (CMRR) (Typ) | 120 dB |
| Input Bias Current (Max) | 250 nA |
Key Features
- Superior Sound Quality: Achieves very low 1.1-nV/√Hz noise density and ultralow distortion of 0.000015% at 1 kHz.
- Ultralow Noise and Distortion: Ensures high fidelity audio performance.
- High Slew Rate and Bandwidth: 27 V/μs slew rate and 40 MHz bandwidth at G = +1.
- High Open-Loop Gain: 130 dB, ensuring high gain accuracy.
- Unity Gain Stable: Stable operation without the need for external compensation.
- Low Quiescent Current: Only 3.6 mA per channel.
- Rail-to-Rail Output: Output swing to within 600 mV with a 2-kΩ load.
- Wide Supply Range: Operates from ±2.25 V to ±18 V.
- Independent Circuitry: Dual version features completely independent channels for minimal crosstalk.
Applications
- Professional Audio Equipment: Ideal for high-end audio systems requiring low noise and distortion.
- Microphone Preamplifiers: Suitable for preamplifying low-level audio signals with high fidelity.
- Audio Processing and Mixing Consoles: Used in various audio processing and mixing applications where high sound quality is essential.
- High-Fidelity Audio Amplifiers: Perfect for building high-quality audio amplifiers with minimal noise and distortion.
Q & A
- What is the typical noise density of the OPA1612AIDRGR at 1 kHz?
The typical noise density is 1.1 nV/√Hz at 1 kHz.
- What is the total harmonic distortion (THD) of the OPA1612AIDRGR at 1 kHz?
The THD is 0.000015% at 1 kHz.
- What is the slew rate of the OPA1612AIDRGR?
The slew rate is 27 V/μs.
- What is the bandwidth of the OPA1612AIDRGR at a gain of +1?
The bandwidth is 40 MHz at G = +1.
- What is the operating temperature range of the OPA1612AIDRGR?
The operating temperature range is –40°C to +85°C.
- What is the quiescent current per channel of the OPA1612AIDRGR?
The quiescent current per channel is typically 3.6 mA.
- Is the OPA1612AIDRGR unity-gain stable?
Yes, the OPA1612AIDRGR is unity-gain stable.
- What is the output current capability of the OPA1612AIDRGR?
The output current capability is ±30 mA.
- What are the common applications of the OPA1612AIDRGR?
Common applications include professional audio equipment, microphone preamplifiers, audio processing and mixing consoles, and high-fidelity audio amplifiers.
- What package types are available for the OPA1612AIDRGR?
The OPA1612AIDRGR is available in SON-8 (DRG) packages.
