INA337AIDGKR
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Texas Instruments INA337AIDGKR

Manufacturer No:
INA337AIDGKR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC INST AMP 1 CIRCUIT 8VSSOP
Delivery:
Payment:
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Product Introduction

Overview

The INA337AIDGKR, produced by Texas Instruments, is a high-temperature, high-performance, low-cost precision instrumentation amplifier. It is designed for single-supply operation and features very-low DC errors and an input common-mode range that extends beyond the positive and approaches the negative rail. This makes it suitable for a wide range of applications from general-purpose to high-accuracy.

The INA337AIDGKR is known for its excellent long-term stability and very-low 1/f noise, ensuring low offset voltage and drift throughout the product's life. It is available in an MSOP-8 package and is specified over a temperature range of –40°C to +125°C.

Key Specifications

Parameter Condition Min Max Units
Input Offset Voltage, RTI (VOS) VS = +5V, VCM = VS/2 ±20 ±100 µV
Offset Voltage Drift (dVOS/dT) vs Temperature ±0.1 ±0.4 µV/°C
Power Supply Rejection Ratio (PSR) VS = +2.7V to +5.5V, VCM = VS/2 ±20 ±3 µV/V
Input Impedance, Differential 1010 || 2 Ω || pF
Common-Mode Rejection Ratio (CMR) VS = +5V, VCM = (V–) + 0.25V to (V+) + 0.1V 106 120 dB
Input Bias Current (IB) VCM = VS/2 ±0.2 ±2 nA
Quiescent Current (IQ) IO = 0, Diff VIN = 0V, VS = +5V 2.4 3.4 mA
Specified Voltage Range +2.7 +5.5 V
Operating Temperature Range –40 +125 °C

Key Features

  • Precision: Low offset voltage of ±100µV (max) and low offset drift of ±0.4µV/°C (max).
  • Long-Term Stability: Excellent stability with very-low 1/f noise.
  • Small Size: Available in MSOP-8 package.
  • Low Cost: Cost-effective solution for precision instrumentation applications.
  • Wide Input Range: Input voltage range extends from 0.25V above the negative rail to 0.1V above the positive rail.
  • High Common-Mode Rejection Ratio (CMR): CMR of 106 dB (min) and 120 dB (typ) at VS = +5V.
  • Internal Input Protection: Inputs protected with internal diodes connected to the power-supply rails.

Applications

  • Low-Level Transducer Amplifier: Suitable for bridges, load cells, thermocouples.
  • Wide Dynamic Range Sensor Measurements: Ideal for high-resolution sensor measurements.
  • High-Resolution Test Systems: Used in test systems requiring high accuracy.
  • Weigh Scales: Applied in precision weighing applications.
  • Multi-Channel Data Acquisition Systems: Used in data acquisition systems requiring multiple channels.
  • Medical Instrumentation: Suitable for medical devices requiring high precision.
  • Automotive Applications: Used in various automotive sensing and measurement applications.
  • General-Purpose: Can be used in a variety of general-purpose instrumentation applications.

Q & A

  1. What is the maximum input offset voltage of the INA337AIDGKR?

    The maximum input offset voltage is ±100µV at VS = +5V and VCM = VS/2.

  2. What is the typical quiescent current of the INA337AIDGKR?

    The typical quiescent current is 3.4 mA at VS = +5V.

  3. What is the operating temperature range of the INA337AIDGKR?

    The specified operating temperature range is –40°C to +125°C.

  4. What is the common-mode rejection ratio (CMR) of the INA337AIDGKR?

    The CMR is 106 dB (min) and 120 dB (typ) at VS = +5V.

  5. Does the INA337AIDGKR have internal input protection?

    Yes, the inputs are protected with internal diodes connected to the power-supply rails.

  6. What is the typical input bias current of the INA337AIDGKR?

    The typical input bias current is ±2 nA at VS = +5V and VCM = VS/2.

  7. What is the specified voltage range for the INA337AIDGKR?

    The specified voltage range is +2.7V to +5.5V.

  8. How does the INA337AIDGKR achieve high common-mode rejection?

    The INA337AIDGKR uses a unique internal topology that converts the input voltage to a current, providing rejection of common-mode input voltage and power-supply variation without the need for accurately matched resistors.

  9. What are some typical applications of the INA337AIDGKR?

    Typical applications include low-level transducer amplifiers, wide dynamic range sensor measurements, high-resolution test systems, weigh scales, multi-channel data acquisition systems, medical instrumentation, and automotive applications.

  10. What package type is the INA337AIDGKR available in?

    The INA337AIDGKR is available in an MSOP-8 package.

Product Attributes

Amplifier Type:Instrumentation
Number of Circuits:1
Output Type:- 
Slew Rate:- 
Gain Bandwidth Product:- 
-3db Bandwidth:1 kHz
Current - Input Bias:200 pA
Voltage - Input Offset:20 µV
Current - Supply:2.4mA
Current - Output / Channel:25 mA
Voltage - Supply Span (Min):2.7 V
Voltage - Supply Span (Max):5.5 V
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:8-VSSOP
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Similar Products

Part Number INA337AIDGKR INA337AIDGKT INA331AIDGKR INA332AIDGKR INA333AIDGKR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active
Amplifier Type Instrumentation Instrumentation Instrumentation Instrumentation Instrumentation
Number of Circuits 1 1 1 1 1
Output Type - - Rail-to-Rail Rail-to-Rail Rail-to-Rail
Slew Rate - - 5V/µs 5V/µs 0.16V/µs
Gain Bandwidth Product - - - - -
-3db Bandwidth 1 kHz 1 kHz 2 MHz 2 MHz 150 kHz
Current - Input Bias 200 pA 200 pA 0.5 pA 0.5 pA 70 pA
Voltage - Input Offset 20 µV 20 µV 250 µV 2 mV 10 µV
Current - Supply 2.4mA 2.4mA 415µA 415µA 50µA
Current - Output / Channel 25 mA 25 mA 48 mA 48 mA 40 mA
Voltage - Supply Span (Min) 2.7 V 2.7 V 2.5 V 2.5 V 1.8 V
Voltage - Supply Span (Max) 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP 8-VSSOP 8-VSSOP 8-VSSOP 8-VSSOP

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