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Op Amp Single Low Noise Amplifier ±18V 8-Pin SOIC N Tube


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Overview of AD797ARZ

The AD797ARZ is a precision operational amplifier (op-amp) known for its ultra-low noise and distortion characteristics, making it ideal for audio and measurement applications where high fidelity is crucial. It offers exceptional performance in terms of signal accuracy and amplification.


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

  • NC: Non-inverting Input
  • V-: Inverting Input
  • NC: V- (Negative Power Supply)
  • V+: Positive Power Supply
  • NC: Non-inverting Input Offset Null
  • NC: Compensation
  • NC: Output
  • NC: V+ (Positive Power Supply)

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the AD797ARZ op-amp for a visual representation.

Key Features

  • Ultra-Low Noise: The AD797ARZ boasts extremely low noise levels, minimizing signal interference and improving signal clarity.
  • Low Distortion: With low harmonic distortion, this op-amp preserves the integrity of the input signal, ideal for high-fidelity audio applications.
  • High Precision: Offers precise amplification with minimal error, ensuring accurate signal processing.
  • Wide Bandwidth: The op-amp provides a broad frequency response, enabling it to handle a wide range of signals effectively.
  • High Slew Rate: Features a rapid slew rate for fast signal amplification and response.

Note: For detailed technical specifications, please refer to the AD797ARZ datasheet.


  • Audio Amplification: Suitable for high-quality audio amplification where low noise and distortion are critical.
  • Precision Instrumentation: Ideal for precision measurement instruments requiring accurate signal processing.
  • Medical Devices: Used in medical equipment for precise signal amplification and processing.


The AD797ARZ op-amp is designed to provide exceptional amplification with minimal noise and distortion, ensuring high-fidelity signal processing in various applications.

Usage Guide

  • Power Supply: Connect the positive and negative power supplies (V+, V-) to the corresponding pins for proper operation.
  • Signal Connection: Input the signal to be amplified at the non-inverting or inverting input, based on the desired configuration.
  • Output Handling: Obtain the amplified signal from the output pin of the op-amp for further processing or transmission.

Frequently Asked Questions

Q: What is the typical noise level of the AD797ARZ?
A: The AD797ARZ is known for its ultra-low noise performance, typically ranging in the sub-nanovolt/√Hz level.

Q: Can the AD797ARZ be used in audio recording applications?
A: Yes, the AD797ARZ is well-suited for audio recording due to its low noise and distortion characteristics, ensuring high-fidelity sound reproduction.


For similar functionalities, consider these alternatives to the AD797ARZ:

  • LT1028: A precision op-amp offering low noise and high accuracy for critical signal processing applications.
  • OPA1612: This op-amp from Texas Instruments provides exceptional audio performance with ultra-low distortion and noise.


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

Product Category Microphone Preamplifiers RoHS Details
Number of Channels 1 Channel THD plus Noise 0.0001 %
Package / Case SOIC-8 Supply Voltage - Max 18 V
Supply Voltage - Min 5 V Maximum Input Resistance 100 MOhms
CMRR - Common Mode Rejection Ratio 114 dB Mounting Style SMD/SMT
Vos - Input Offset Voltage 25 uV Ib - Input Bias Current 1.5 uA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Series AD797 Available Set Gain 20 V/uV
Bandwidth 8 MHz Brand Analog Devices
Class Other Dual Supply Voltage +/- 9 V, +/- 12 V, +/- 15 V
GBP - Gain Bandwidth Product 110 MHz Height 1.75 mm
Input Voltage Range - Max 18 V Length 5 mm
Maximum Dual Supply Voltage +/- 18 V Minimum Dual Supply Voltage +/- 5 V
Operating Supply Current 8.2 mA Output Current 50 mA
Product Microphone Preamplifiers Product Type Microphone Preamplifiers
PSRR - Power Supply Rejection Ratio 130 dB SR - Slew Rate 20 V/us
Factory Pack Quantity 98 Subcategory Audio ICs
Supply Type Dual Width 4 mm
Unit Weight 0.019048 oz

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