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Low Noise, Low Distortion Instrumentation Amplifier

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INA103KP General Description

The INA103 is a very low noise, low distortion monolithic instrumentation amplifier. Its current-feedback circuitry achieves very wide bandwidth and excellent dynamic response. It is ideal for low-level audio signals such as balanced low-impedance microphones. The INA103 provides near-theoretical limit noise performance for 200(ohm) source impedances. Many industrial applications also benefit from its low noise and wide bandwidth.

Unique distortion cancellation circuitry reduces distortion to extremely low levels, even in high gain. Its balanced input, low noise and low distortion provide superior performance compared to transformer-coupled microphone amplifiers used in professional audio equipment.

The INA103’s wide supply voltage (±9 to ±25V) and high output current drive allow its use in high-level audio stages as well. A copper lead frame in the plastic DIP assures excellent thermal performance.

The INA103 is available in 16-pin plastic DIP, 16-pin ceramic DIP and SOL-16 surface-mount packages. Commercial and industrial temperature range models are available.

Texas Instruments, Inc Inventory

Key Features

  • LOW NOISE: 1nV/sqrt(Hz)
  • LOW THD+N: 0.0009% at 1kHz, G = 100
  • HIGH GBW: 100MHz at G = 1000
  • WIDE SUPPLY RANGE: ±9V to ±25V
  • HIGH CMRR: >110dB
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps Mfr Texas Instruments
Series - Package Tube
Product Status Active Amplifier Type Instrumentation
Number of Circuits 1 Output Type -
Slew Rate 15V/µs -3db Bandwidth 6 MHz
Current - Input Bias 2.5 µA Voltage - Input Offset 30 µV
Current - Supply 9mA Current - Output / Channel 40 mA
Voltage - Supply Span (Min) 18 V Voltage - Supply Span (Max) 50 V
Operating Temperature 0°C ~ 70°C Mounting Type Through Hole
Package / Case 16-DIP (0.300", 7.62mm) Supplier Device Package 16-PDIP
Base Product Number INA103

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customers are required to pay all possible fees, including sales tax,customs fees, etc.

shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

J**n Jun 20, 2022

Accordingly description

E**n Mar 02, 2021

Super quick, less than a week. Each piece in its own pack. Look excellent.



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