Overview
The OP497GS, produced by Analog Devices Inc., is a quad operational amplifier known for its precision performance, low power consumption, and extremely low input bias current. This general-purpose amplifier is packaged in a 16-lead SOIC (Small Outline Integrated Circuit) and is designed to operate over a wide temperature range of -40°C to +85°C. The OP497GS is ideal for various applications requiring high accuracy and stability, such as instrumentation amplifiers, thermocouple amplifiers, and battery-powered systems.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage (VOS) | - | - | 75 | 80 | μV |
| Average Input Offset Voltage Drift (TCVOS) | -40°C ≤ TA ≤ +85°C | 0.4 | 1.0 | 1.5 | μV/°C |
| Input Bias Current (IB) | VCM = 0 V | 40 | 150 | 200 | pA |
| Supply Current (per amplifier) | - | - | - | 625 | μA |
| Slew Rate | - | - | - | 0.15 | V/μs |
| Gain Bandwidth Product | - | - | - | 500 | kHz |
| Output Current per Channel | - | - | - | 25 | mA |
| Supply Voltage Range | - | ±2 | - | ±20 | V |
| Operating Temperature | - | -40 | - | 85 | °C |
| Package | - | - | - | 16-SOIC | - |
Key Features
- Low Offset Voltage: Maximum of 75 μV and low drift of 1.0 μV/°C, ensuring high precision.
- Low Input Bias Current: As low as 150 pA at 25°C, making it suitable for applications requiring minimal current draw.
- High Open-Loop Gain: Exceeds 2000 V/mV, providing high linearity in various applications.
- High Common-Mode Rejection: Greater than 120 dB, minimizing errors due to common-mode signals.
- Low Power Consumption: Supply current of less than 625 μA per amplifier, suitable for battery-powered systems.
- Wide Supply Voltage Range: Operates from ±2 V to ±20 V, offering flexibility in design.
Applications
- Instrumentation Amplifiers: Ideal for high-precision measurement applications.
- Thermocouple Amplifiers: High stability and low drift make it suitable for thermocouple applications.
- Strain Gage and Bridge Amplifiers: Precision and low noise characteristics are beneficial for these applications.
- Photocurrent Monitors: Low input bias current is advantageous for monitoring photocurrents.
- Logarithmic Amplifiers: High gain and linearity make it suitable for logarithmic amplification.
- Battery-Powered Systems: Low power consumption and wide supply voltage range make it ideal for battery-powered devices.
Q & A
- What is the maximum offset voltage of the OP497GS?
The maximum offset voltage of the OP497GS is 80 μV.
- What is the typical input bias current of the OP497GS?
The typical input bias current is 150 pA at 25°C.
- What is the open-loop gain of the OP497GS?
The open-loop gain exceeds 2000 V/mV.
- What is the common-mode rejection ratio (CMRR) of the OP497GS?
The CMRR is greater than 120 dB.
- What is the supply current per amplifier for the OP497GS?
The supply current per amplifier is less than 625 μA.
- What is the operating temperature range of the OP497GS?
The operating temperature range is -40°C to +85°C.
- What is the package type of the OP497GS?
The package type is 16-SOIC (Small Outline Integrated Circuit).
- Is the OP497GS suitable for battery-powered systems?
Yes, it is suitable due to its low power consumption and wide supply voltage range.
- What are some common applications of the OP497GS?
Common applications include instrumentation amplifiers, thermocouple amplifiers, strain gage and bridge amplifiers, and logarithmic amplifiers.
- Is the OP497GS still in production?
No, the OP497GS is obsolete and not recommended for new designs.
