Overview
The OPA1656IDR is a high-performance, ultra-low noise, and low-distortion operational amplifier from Texas Instruments, part of their Burr-Brown™ series. This device is specifically designed for audio and industrial applications where maintaining signal fidelity is crucial. The OPA1656IDR features a FET-input architecture, which achieves low noise and high bandwidth, making it ideal for applications requiring high signal integrity.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage Noise Density | 2.9 nV/√Hz at 10 kHz | nV/√Hz |
| Current Noise Density | 6 fA/√Hz at 1 kHz | fA/√Hz |
| Total Harmonic Distortion + Noise (THD+N) | 0.000029% (–131 dB) at 1 kHz, 0.000035% (–129 dB) at 20 kHz | % (dB) |
| Open-Loop Gain | 150 dB | dB |
| Output Current | 100 mA | mA |
| Input Bias Current | 10 pA | pA |
| Slew Rate | 24 V/μs | V/μs |
| Gain Bandwidth Product | 53 MHz | MHz |
| Supply Voltage Range | ±2.25 V to ±18 V or 4.5 V to 36 V | V |
| Quiescent Current per Channel | 3.9 mA | mA |
| Operating Temperature Range | –40°C to 125°C | °C |
| Package Type | SOIC (D) with 8 pins |
Key Features
- Ultra-low noise: 2.9 nV/√Hz voltage noise and 6 fA/√Hz current noise.
- Low distortion: 0.000029% (–131 dB) at 1 kHz and 0.000035% (–129 dB) at 20 kHz.
- High open-loop gain: 150 dB.
- High output current: 100 mA.
- Low input bias current: 10 pA.
- High slew rate: 24 V/μs.
- High gain bandwidth product: 53 MHz.
- Rail-to-rail output.
- Wide supply range: ±2.25 V to ±18 V or 4.5 V to 36 V.
- Low quiescent current: 3.9 mA per channel.
Applications
- Guitar amplifiers and other music instrument amplifiers.
- A/V receivers.
- Bookshelf stereo systems.
- Professional audio amplifiers.
- DJ equipment.
- Turntables.
- Special function modules in industrial applications.
Q & A
- What is the voltage noise density of the OPA1656IDR?
The voltage noise density is 2.9 nV/√Hz at 10 kHz.
- What is the total harmonic distortion + noise (THD+N) of the OPA1656IDR?
The THD+N is 0.000029% (–131 dB) at 1 kHz and 0.000035% (–129 dB) at 20 kHz.
- What is the open-loop gain of the OPA1656IDR?
The open-loop gain is 150 dB.
- What is the maximum output current of the OPA1656IDR?
The maximum output current is 100 mA.
- What is the input bias current of the OPA1656IDR?
The input bias current is 10 pA.
- What is the slew rate of the OPA1656IDR?
The slew rate is 24 V/μs.
- What is the gain bandwidth product of the OPA1656IDR?
The gain bandwidth product is 53 MHz.
- What is the supply voltage range for the OPA1656IDR?
The supply voltage range is ±2.25 V to ±18 V or 4.5 V to 36 V.
- What is the quiescent current per channel for the OPA1656IDR?
The quiescent current per channel is 3.9 mA.
- What is the operating temperature range for the OPA1656IDR?
The operating temperature range is –40°C to 125°C.
- In what package is the OPA1656IDR available?
The OPA1656IDR is available in an SOIC (D) package with 8 pins.
