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INST Amp Single ±25V 16-Pin SOIC T/R

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INA103KU/1K 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


Number of channels 1 Vs (max) (V) 50
Vs (min) (V) 18 Input offset (±) (max) (µV) 250
Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000
Noise at 1 kHz (typ) (nV√Hz) 1 Features Current Feedback, Ultra-low noise
CMRR (min) (dB) 100 Input bias current (±) (max) (nA) 12000
Iq (typ) (mA) 9 Bandwidth at min gain (typ) (MHz) 6
Gain error (±) (max) (%) 0.25 Operating temperature range (°C) -40 to 85
Rating Catalog Type Resistor
Gain nonlinearity (±) (max) (%) 0.004 Output swing headroom (to negative supply) (typ) (V) 3
Output swing headroom (to positive supply) (typ) (V) -3 Input common mode headroom (to negative supply) (typ) (V) 3
Input common mode headroom (to positive supply) (typ) (V) -3 feature-number-of-channels-per-chip 1
feature-rail-to-rail feature-typical-gain-bandwidth-product-mhz
feature-maximum-input-offset-voltage-mv 0.25@±15V feature-maximum-operating-supply-voltage-v ±25
feature-maximum-input-bias-current-ua 12@±15V feature-packaging Tape and Reel
feature-rad-hard feature-pin-count 16
feature-supplier-package SOIC feature-standard-package-name1 SO
feature-cecc-qualified No feature-esd-protection Yes
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc Yes


Shipping Method

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

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


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.


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


  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray


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Buying Guide

  • What is the lifespan of INA103KU/1K?

    The lifespan of INA103KU/1K depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of INA103KU/1K?

    You can find it with PDF Datasheet for INA103KU/1K on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of INA103KU/1K?

    Avaq has separate quality services with common quality inspection equipment for testing items, you can also fill out a sample form, our team will get in touch with you within 24 HOURS.

  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

    Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.

  • Where to view my order of INA103KU/1K or my history order record?

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