Dual Operational Amplifier with Low Noise Performance and Rail-to-Rail Output Capability at ±18V/36V

Quantity Unit Price(USD) Ext. Price
1 $3.971 $3.97
10 $3.452 $34.52
30 $3.144 $94.32
250 $2.831 $707.75
500 $2.687 $1,343.50
1000 $2.624 $2,624.00


*The price is for reference only.
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Overview of OPA2209AIDGKT

The OPA2209AIDGKT is a precision, low-offset, low-noise operational amplifier featuring rail-to-rail output capability. It is designed for applications that require high precision and low distortion, making it ideal for sensor interfaces, instrumentation, and audio systems.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • V-: Inverting Input
  • V+: Non-Inverting Input
  • VCC+: Positive Power Supply
  • VCC-: Negative Power Supply
  • OUT: Output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the OPA2209AIDGKT IC for a visual representation.

Key Features

  • Low Offset Voltage: Provides high precision with minimal offset voltage, ensuring accurate signal processing.
  • Low Noise: Offers low noise operation, making it suitable for applications that require clean signal amplification.
  • Rail-to-Rail Output: Capable of reaching both supply rails, maximizing dynamic range in signal processing.
  • Wide Bandwidth: Features a wide bandwidth for fast signal processing and response times.
  • High Gain: Offers high open-loop gain, suitable for amplification tasks in sensitive circuits.
  • Small Package: Available in a compact MSOP-8 package for space-constrained applications.

Note: For detailed technical specifications, please refer to the OPA2209AIDGKT datasheet.


  • Sensor Interfaces: Ideal for precision sensor interface circuits requiring accurate signal conditioning.
  • Audio Systems: Suitable for audio amplifier circuits that demand low noise and high fidelity.
  • Instrumentation: Commonly used in test and measurement equipment where precision and accuracy are essential.


The OPA2209AIDGKT is a precision operational amplifier designed to provide high-accuracy signal processing with low noise and distortion. It is a versatile component for various high-fidelity applications.

Usage Guide

  • Power Supply: Connect VCC+ (Pin 3) to the positive power supply and VCC- (Pin 4) to the negative power supply.
  • Input Connections: Apply the input signal to the non-inverting (V+) and inverting (V-) input pins for signal amplification.
  • Output: The amplified output signal is available at the OUT pin for further processing.

Frequently Asked Questions

Q: Can the OPA2209AIDGKT be used in audio applications?
A: Yes, the OPA2209AIDGKT is suitable for high-fidelity audio systems due to its low noise and high precision characteristics.


For similar functionalities, consider these alternatives to the OPA2209AIDGKT:

  • OPA2210AIDR: This operational amplifier from Texas Instruments offers similar precision and low noise performance in a different package.
  • LTC2050HVS8: A high-precision op-amp alternative from Linear Technology with low offset and low noise specifications.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.15
GBW (typ) (MHz) 18 Slew rate (typ) (V/µs) 6.4
Rail-to-rail Out Offset drift (typ) (µV/°C) 1
Iq per channel (typ) (mA) 2.2 Vn at 1 kHz (typ) (nV√Hz) 2.2
CMRR (typ) (dB) 130 Rating Catalog
Operating temperature range (°C) -40 to 125 Input bias current (max) (pA) 4500
Iout (typ) (A) 0.065 Architecture Bipolar
Input common mode headroom (to negative supply) (typ) (V) 1.5 Input common mode headroom (to positive supply) (typ) (V) -1.5
Output swing headroom (to negative supply) (typ) (V) 0.2 Output swing headroom (to positive supply) (typ) (V) -0.2
THD + N at 1 kHz (typ) (%) 0.000025

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