Overview
The OP285GS, produced by Analog Devices Inc., is a dual 9 MHz precision operational amplifier. It features the innovative Butler Amplifier front-end, which combines the accuracy and low noise performance of bipolar transistors with the speed of JFETs. This design results in an amplifier with high slew rates, low offset voltage, and excellent noise performance, all while maintaining low supply currents. The OP285GS is particularly useful in applications requiring high precision, low noise, and medium speed, making it an ideal choice for various high-performance electronic systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | - | - | 250 µV | - | µV |
| Input Bias Current | IB | VCM = 0 V | 100 nA | 350 nA | - | nA |
| Differential Input Voltage | - | - | - | - | ±7.5 V | V |
| Slew Rate | - | - | - | 22 V/µs | - | V/µs |
| Gain Bandwidth Product | - | - | - | 9 MHz | - | MHz |
| Supply Voltage | - | - | 9 V ~ 44 V, ±4.5 V ~ 22 V | - | - | V |
| Supply Current | - | - | - | 5 mA | - | mA |
| Operating Temperature Range | - | - | - | -40°C to +85°C | - | °C |
| Package | - | - | - | 8-lead SOIC_N | - | - |
Key Features
- Low offset voltage: 250 µV, laser-trimmed for high accuracy.
- Low noise: 6 nV/√Hz, ensuring minimal signal distortion.
- High slew rate: 22 V/µs, suitable for high-speed applications.
- Wide bandwidth: 9 MHz, supporting a broad range of frequencies.
- Low supply current: 5 mA, making it power-efficient.
- Low input bias current: 100 nA, reducing the impact on input signals.
- Unity-gain stable, ensuring reliable operation in various configurations.
- Available in an 8-lead SOIC_N surface mount package.
Applications
- High-performance audio systems: Ideal for dc-coupled audio applications due to its low noise and high accuracy.
- Active filters: Suitable for building high-speed instrumentation systems and filters.
- Fast amplifiers: Used in applications requiring quick signal amplification with minimal distortion.
- Integrators: Useful in circuits such as ramp generators and bi-quad filters.
- Instrumentation amplifiers: Provides the necessary precision and speed for high-performance instrumentation systems.
Q & A
- What is the input offset voltage of the OP285GS? The input offset voltage is 250 µV.
- What is the slew rate of the OP285GS? The slew rate is 22 V/µs.
- What is the gain bandwidth product of the OP285GS? The gain bandwidth product is 9 MHz.
- What is the operating temperature range of the OP285GS? The operating temperature range is -40°C to +85°C.
- What package is the OP285GS available in? The OP285GS is available in an 8-lead SOIC_N surface mount package.
- What are some typical applications of the OP285GS? Typical applications include high-performance audio systems, active filters, fast amplifiers, integrators, and instrumentation amplifiers.
- What is the supply voltage range for the OP285GS? The supply voltage range is 9 V ~ 44 V, ±4.5 V ~ 22 V.
- Is the OP285GS RoHS compliant? No, the OP285GS contains lead and is not RoHS compliant.
- What is the input bias current of the OP285GS? The input bias current is 100 nA.
- What is the typical supply current of the OP285GS? The typical supply current is 5 mA.
