Overview
The OP497FS, produced by Analog Devices Inc., is a precision picoampere input current quad operational amplifier. It is designed to offer exceptional precision, low power consumption, and extremely low input bias current, making it ideal for a wide range of applications. The OP497FS is packaged in a space-saving, industry-standard 16-lead SOIC package, enhancing its versatility and usability in various electronic systems.
Key Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | TA = 25°C, VS = ±15 V | 40 | 75 | 80 | μV |
| Average Input Offset Voltage Drift | TCVOS | TMIN − TMAX | 0.4 | 1.0 | 1.5 | μV/°C |
| Input Bias Current | IB | VCM = 0 V, TA = 25°C | 40 | 150 | 200 | pA |
| Input Offset Current | IOS | VCM = 0 V, TA = 25°C | 30 | 150 | 200 | pA |
| Open-Loop Gain | TA = 25°C, VS = ±15 V | 2000 | V/mV | |||
| Supply Current (per amplifier) | TA = 25°C, VS = ±15 V | 625 | μA | |||
| Common-Mode Rejection Ratio | TA = 25°C, VS = ±15 V | 114 | dB | |||
| Power Supply Rejection Ratio | TA = 25°C, VS = ±15 V | 120 | dB | |||
| Operating Supply Voltage Range | ±2 V | ±20 V | V |
Key Features
- Precision Performance: Very low offset voltage (< 50 μV) and low drift (< 0.5 μV/°C).
- Low Input Bias Current: Extremely low input bias current (less than 150 pA at 25°C) due to the superbeta input stage with bias current cancellation.
- High Open-Loop Gain: Exceeds 2000 V/mV, ensuring high linearity in every application.
- High Common-Mode Rejection Ratio (CMRR): Greater than 114 dB, eliminating errors due to common-mode signals.
- High Power Supply Rejection Ratio (PSRR): Greater than 120 dB, minimizing offset voltage changes in battery-powered systems.
- Low Power Consumption: Supply current less than 625 μA per amplifier.
- Wide Operating Supply Voltage Range: Can operate with supply voltages as low as ±2 V and up to ±20 V.
Applications
- Strain Gage and Bridge Amplifiers: Ideal for precision measurement in strain gage and bridge configurations.
- High Stability Thermocouple Amplifiers: Suitable for thermocouple applications requiring high stability and precision.
- Instrumentation Amplifiers: Used in various instrumentation applications due to its high precision and low noise characteristics.
- Photocurrent Monitors: Applicable in systems that require the measurement of photocurrents with high accuracy.
- High Gain Linearity Amplifiers: Ensures high linearity in high-gain applications).
- Long-term Integrators/Filters: Suitable for long-term integration and filtering tasks due to its stability and precision).
- Sample-and-Hold Amplifiers: Used in sample-and-hold circuits requiring low noise and high precision).
- Peak Detectors: Ideal for detecting peak signals with high accuracy).
- Logarithmic Amplifiers: Used in logarithmic amplifier circuits requiring precision and low noise).
- Battery-Powered Systems: Suitable for battery-powered systems due to its low power consumption and high PSRR).
Q & A
- What is the typical offset voltage of the OP497FS?
The typical offset voltage of the OP497FS is 75 μV.
- What is the input bias current of the OP497FS at 25°C?
The input bias current of the OP497FS at 25°C is less than 150 pA.
- What is the open-loop gain of the OP497FS?
The open-loop gain of the OP497FS exceeds 2000 V/mV.
- What is the common-mode rejection ratio (CMRR) of the OP497FS?
The CMRR of the OP497FS is greater than 114 dB).
- What is the power supply rejection ratio (PSRR) of the OP497FS?
The PSRR of the OP497FS is greater than 120 dB).
- What is the supply current per amplifier for the OP497FS?
The supply current per amplifier for the OP497FS is less than 625 μA).
- What is the operating supply voltage range for the OP497FS?
The OP497FS can operate with supply voltages as low as ±2 V and up to ±20 V).
- What are some common applications of the OP497FS?
The OP497FS is commonly used in strain gage and bridge amplifiers, high stability thermocouple amplifiers, instrumentation amplifiers, and other precision measurement applications).
- What package types are available for the OP497FS?
The OP497FS is available in a 16-lead SOIC package).
- What is the operating temperature range for the OP497FS?
The operating temperature range for the OP497FS is from -40°C to +85°C).
