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INST Amp Single R-R O/P ±2.75V/5.5V 8-Pin WSON EP T/R

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INA333AIDRGR General Description

The INA333 device is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size, and low power make it ideal for a wide range of portable applications.

A single external resistor sets any gain from 1 to 1000. The INA333 is designed to use an industry-standard gain equation: G = 1 + (100 kΩ / RG).

The INA333 device provides very low offset voltage (25 µV, G ≥ 100), excellent offset voltage drift (0.1 µV/°C, G ≥ 100), and high common-mode rejection (100 dB at G ≥ 10). It operates with power supplies as low as 1.8 V (±0.9 V) and quiescent current is only 50 µA, making it ideal for battery-operated systems. Using autocalibration techniques to ensure excellent precision over the extended industrial temperature range, the INA333 device also offers exceptionally low noise density (50 nV/√Hz) that extends down to DC.

The INA333 device is available in both 8-pin VSSOP and WSON surface-mount packages and is specified over the TA = –40°C to +125°C temperature range.

ina333aidrgr INA333AIDRGR

Key Features

  • Low Offset Voltage: 25 µV (Maximum), G ≥ 100
  • Low Drift: 0.1 µV/°C, G ≥ 100
  • Low Noise: 50 nV/√Hz, G ≥ 100
  • High CMRR: 100 dB (Minimum), G ≥ 10
  • Low Input Bias Current: 200 pA (Maximum)
  • Supply Range: 1.8 V to 5.5 V
  • Input Voltage: (V–) +0.1 V to (V+) –0.1 V
  • Output Range: (V–) +0.05 V to (V+) –0.05 V
  • Low Quiescent Current: 50 µA
  • Operating Temperature: –40°C to +125°C
  • RFI Filtered Inputs
  • 8-Pin VSSOP and 8-Pin WSON Packages


Number of channels 1 Vs (max) (V) 5.5
Vs (min) (V) 1.8 Input offset (±) (max) (µV) 25
Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000
Noise at 1 kHz (typ) (nV√Hz) 50 Features Low power, Small Size, Zero Drift
CMRR (min) (dB) 100 Input offset drift (±) (max) (V/°C) 0.0000001
Input bias current (±) (max) (nA) 0.2 Iq (typ) (mA) 0.05
Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.25
Operating temperature range (°C) -40 to 125 Rating Catalog
Type Resistor Gain nonlinearity (±) (max) (%) 0.001
Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05
Input common mode headroom (to negative supply) (typ) (V) 0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 1

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After-Sales & Settlement Related

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

If you have specific preferences or requirements for payment channels, please contact our sales team. 

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

N**n May 12, 2023

Everything works. The number did not count. I use as an engine temperature sensor under starline.

D**n Apr 21, 2023

More than a month but not critical i'm happy

S**l Oct 08, 2021

A good fan, corresponds to the description. To omsk region. 25 days.



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