Overview
The OP275GSZ is a dual bipolar/JFET audio operational amplifier produced by Analog Devices Inc. It is distinguished by its innovative Butler amplifier front end, which combines bipolar and JFET transistors to achieve high accuracy, low noise performance, and excellent sound quality. This design offers the benefits of both transistor types, including the low noise and accuracy of bipolar transistors and the speed and sound quality of JFETs. The OP275GSZ is known for its low total harmonic distortion plus noise, low supply currents, and improved DC performance, making it suitable for a variety of high-performance applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | -40°C ≤ TA ≤ +85°C | - | - | 1 mV | - |
| Input Bias Current | IB | VCM = 0 V | - | 100 nA | 350 nA | - |
| Power Supply Rejection Ratio | PSRR | VS = ±4.5 V to ±18 V | 80 dB | 111 dB | - | - |
| Supply Current | ISY | VS = ±4.5 V to ±18 V, VO = 0 V, RL = ∞ | - | 4 mA | 5 mA | - |
| Supply Voltage Range | VS | - | ±4.5 V | - | ±22 V | - |
| Slew Rate | SR | RL = 2 kΩ | 15 V/μs | 22 V/μs | - | - |
| Gain Bandwidth Product | GBP | - | - | 9 MHz | - | - |
| Phase Margin | Øm | - | - | 62 Degrees | - | - |
| Operating Temperature | - | - | -40°C | - | +85°C | - |
| Package Type | - | - | - | 8-Lead SOIC | - | - |
Key Features
- Low Noise: Typical voltage noise density of 6 nV/√Hz at 1 kHz.
- Low Distortion: Total Harmonic Distortion plus noise as low as 0.0006% at RL = 2 kΩ, f = 1 kHz.
- High Slew Rate: Typical slew rate of 22 V/μs.
- Wide Bandwidth: Gain bandwidth product of 9 MHz.
- Low Supply Current: Typical supply current of 5 mA.
- Low Offset Voltage: Maximum input offset voltage of 1 mV.
- Low Offset Current: Typical input offset current of 2 nA.
- Unity Gain Stable: Stable in unity gain configurations.
- Operating Temperature Range: -40°C to +85°C).
- Butler Amplifier Front End: Combines bipolar and JFET transistors for enhanced performance).
Applications
- High-Performance Audio: Ideal for audio applications requiring low noise and low distortion).
- Active Filters: Suitable for use in active filter circuits due to its high slew rate and wide bandwidth).
- Fast Amplifiers: Used in applications requiring fast amplification with minimal distortion).
- Integrators: Can be used in integrator circuits due to its low offset voltage and current).
- Industrial Applications: Used in various industrial applications such as line drivers and other high-performance amplification needs).
Q & A
- What is the typical input offset voltage of the OP275GSZ?
The typical input offset voltage is less than 200 μV, with a maximum of 1 mV).
- What is the slew rate of the OP275GSZ?
The typical slew rate is 22 V/μs).
- What is the gain bandwidth product of the OP275GSZ?
The gain bandwidth product is 9 MHz).
- What is the operating temperature range of the OP275GSZ?
The operating temperature range is -40°C to +85°C).
- What type of package does the OP275GSZ come in?
The OP275GSZ comes in an 8-Lead SOIC package).
- What is the typical supply current of the OP275GSZ?
The typical supply current is 5 mA).
- Is the OP275GSZ unity gain stable?
Yes, the OP275GSZ is unity gain stable).
- What is the typical voltage noise density of the OP275GSZ?
The typical voltage noise density is 6 nV/√Hz at 1 kHz).
- What are some common applications of the OP275GSZ?
Common applications include high-performance audio, active filters, fast amplifiers, and integrators).
- Does the OP275GSZ feature any special front-end design?
Yes, it features the Butler amplifier front end, which combines bipolar and JFET transistors).
