Overview
The OPA1604AIDR is a high-performance, bipolar-input operational amplifier produced by Texas Instruments. It is part of the OPA160x series, known for its superior sound quality, ultra-low noise, and low distortion. These op amps are designed to operate over a wide supply range and are suitable for various professional audio and broadcast applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VS) | ±2.25 | ±18 | V | ||
| Quiescent Current (IQ) | IOUT = 0A | 2.6 | 3.2 | mA | |
| Operating Temperature Range | –40 | +85 | °C | ||
| Noise Density | f = 1kHz | 2.5 nV/√Hz | |||
| Total Harmonic Distortion + Noise (THD+N) | G = +1, f = 1kHz, VO = 3VRMS | 0.00003% | |||
| Slew Rate (SR) | G = +1, RL = 2kΩ | 20 V/μs | |||
| Gain-Bandwidth Product (GBW) | G = +1 | 35 MHz | |||
| Output Drive Capability | ±30 mA |
Key Features
- Superior Sound Quality: Ultra-low noise density of 2.5 nV/√Hz at 1 kHz and ultra-low distortion of 0.00003% at 1 kHz.
- High Slew Rate: 20 V/μs with a 2kΩ load.
- Wide Bandwidth: 35 MHz gain-bandwidth product.
- High Open-Loop Gain: 120 dB.
- Rail-to-Rail Output Swing: Output swing to within 600 mV of the supply rails.
- Low Quiescent Current: 2.6 mA per channel.
- Wide Supply Range: Operates from ±2.25 V to ±18 V.
- Unity Gain Stable: Stable in unity gain configuration.
- Independent Circuitry: Completely independent circuitry for lowest crosstalk and freedom from interactions between channels.
Applications
- Professional Audio Equipment: Ideal for high-quality audio applications requiring low noise and distortion.
- Broadcast Studio Equipment: Suitable for broadcast studios where high fidelity and low noise are critical.
- Analog and Digital Mixers: Used in mixing consoles and other audio processing equipment.
Q & A
- What is the typical noise density of the OPA1604AIDR?
The typical noise density of the OPA1604AIDR is 2.5 nV/√Hz at 1 kHz.
- What is the slew rate of the OPA1604AIDR?
The slew rate of the OPA1604AIDR is 20 V/μs with a 2kΩ load.
- What is the gain-bandwidth product of the OPA1604AIDR?
The gain-bandwidth product of the OPA1604AIDR is 35 MHz.
- What is the output drive capability of the OPA1604AIDR?
The OPA1604AIDR can drive up to ±30 mA.
- What is the operating temperature range of the OPA1604AIDR?
The operating temperature range of the OPA1604AIDR is from –40°C to +85°C.
- Is the OPA1604AIDR unity gain stable?
Yes, the OPA1604AIDR is unity gain stable.
- What is the typical quiescent current of the OPA1604AIDR?
The typical quiescent current of the OPA1604AIDR is 2.6 mA per channel.
- What is the supply voltage range of the OPA1604AIDR?
The OPA1604AIDR operates from ±2.25 V to ±18 V.
- What are some common applications of the OPA1604AIDR?
The OPA1604AIDR is commonly used in professional audio equipment, broadcast studio equipment, and analog and digital mixers.
- Does the OPA1604AIDR have independent circuitry for each channel?
Yes, the OPA1604AIDR has completely independent circuitry for each channel, minimizing crosstalk and interactions between channels.
