INA331IDGKT AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

INA331IDGKT product

INA331IDGKT

Amplifiers

instrumentation amplifierCMOSlow powersingle supplyVSSOP-8programmable gain

INA331IDGKT is a low-power single-channel instrumentation amplifier for differential sensor and signal-conditioning circuits using a 2.7 V to 5.5 V supply.

Best for

  • Low-power differential sensor interfaces
  • Bridge, RTD, and thermocouple amplification
  • ADC signal conditioning

Avoid if

  • The input common-mode voltage must approach the positive supply rail
  • A gain below 5 V/V is required
  • The output must directly drive a load substantially below 10 kΩ without buffering

Check before use

  • Gain resistor tolerance and temperature coefficient
  • REF source impedance
  • Output load and capacitive-load stability
  • Input bias-current return path

Key specifications

Supply voltage
2.7 V to 5.5 V specified
Gain
5 V/V to 1000 V/V
Input offset voltage
±500 µV max at 5 V
Quiescent current
415 µA typ per channel
Bandwidth
2.0 MHz typ at G = 25
Package
8-pin VSSOP (DGK)

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-2-260C-1 YEAR
ECCN
-
HTSUS
-

Application

Industrial sensor amplificationBridge and RTD interfacesLow-power data acquisition

CAD Models

Download ECAD models for INA331IDGKT: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

INA331IDGKT is a Texas Instruments low-power CMOS instrumentation amplifier in an 8-pin DGK VSSOP package. It has an internal gain of 5 V/V and supports externally programmed gains up to 1000 V/V.