Overview
The OP275GS-REEL, produced by Analog Devices Inc., is a high-performance dual operational amplifier designed for audio and general-purpose applications. It features the innovative Butler Amplifier front end, which combines bipolar and JFET transistors to achieve exceptional audio performance and low noise characteristics. This amplifier is known for its high slew rate, wide bandwidth, and low noise density, making it suitable for a variety of applications requiring high fidelity and precision.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| AUDIO PERFORMANCE - THD + Noise | - | VIN = 3 V rms, RL = 2 kΩ, f = 1 kHz | - | 0.006 % | - | % |
| Voltage Noise Density | en | f = 30 Hz | - | 7 nV/√Hz | - | nV/√Hz |
| Voltage Noise Density | en | f = 1 kHz | - | 6 nV/√Hz | - | nV/√Hz |
| Current Noise Density | in | f = 1 kHz | - | 1.5 pA/√Hz | - | pA/√Hz |
| Offset Voltage | VOS | -40°C ≤ TA ≤ +85°C | - | 1.25 mV | - | mV |
| Input Bias Current | IB | VCM = 0 V | 100 nA | 350 nA | - | nA |
| Supply Voltage Range | VS | - | ±4.5 V | - | ±22 V | V |
| Supply Current | ISY | VS = ±4.5 V to ±18 V, VO = 0 V, RL = ∞, -40°C ≤ TA ≤ +85°C | 4 mA | 5 mA | - | mA |
| Slew Rate | SR | RL = 2 kΩ | 15 V/μs | 22 V/μs | - | V/μs |
| Gain Bandwidth Product | GBP | - | - | 9 MHz | - | MHz |
| Phase Margin | Øm | - | - | 62 Degrees | - | Degrees |
Key Features
- Butler Amplifier Front End: Combines bipolar and JFET transistors for exceptional audio performance and low noise.
- Low Noise: Voltage noise density of 6 nV/√Hz at 1 kHz and current noise density of 1.5 pA/√Hz at 1 kHz.
- High Slew Rate: Up to 22 V/μs, ensuring fast response times.
- Wide Bandwidth: Gain bandwidth product of 9 MHz.
- High Headroom: THD + Noise headroom greater than 12.9 dBu with ±18 V supplies.
- Wide Supply Voltage Range: Operates from ±4.5 V to ±22 V.
- Low Input Bias Current: Input bias current of 100 nA to 350 nA.
- Compact Package: Available in 8-pin SOIC package.
Applications
- Audio Equipment: Ideal for high-fidelity audio amplifiers, preamplifiers, and line drivers.
- Industrial Applications: Used in differential line drivers and other industrial control systems requiring low noise and high precision.
- Professional Audio Systems: Suitable for mixing consoles, effects processors, and other professional audio equipment.
- Medical Devices: Can be used in medical equipment where low noise and high accuracy are critical.
Q & A
- What is the unique feature of the OP275GS-REEL's front end design?
The OP275GS-REEL features the Butler Amplifier front end, which combines both bipolar and JFET transistors to achieve exceptional audio performance and low noise characteristics.
- What is the typical voltage noise density of the OP275GS-REEL at 1 kHz?
The typical voltage noise density at 1 kHz is 6 nV/√Hz.
- What is the slew rate of the OP275GS-REEL?
The slew rate is up to 22 V/μs.
- What is the gain bandwidth product of the OP275GS-REEL?
The gain bandwidth product is 9 MHz.
- What is the phase margin of the OP275GS-REEL?
The phase margin is 62 degrees.
- What is the supply voltage range for the OP275GS-REEL?
The supply voltage range is from ±4.5 V to ±22 V.
- What is the typical input bias current of the OP275GS-REEL?
The typical input bias current is 350 nA.
- In what package is the OP275GS-REEL available?
The OP275GS-REEL is available in an 8-pin SOIC package.
- What are some common applications for the OP275GS-REEL?
Common applications include high-fidelity audio equipment, industrial control systems, professional audio systems, and medical devices.
- Is the OP275GS-REEL RoHS compliant?
Yes, the OP275GS-REEL is RoHS compliant.
