INA199A1RSWT
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Texas Instruments INA199A1RSWT

Manufacturer No:
INA199A1RSWT
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC OPAMP CURR SENSE 14KHZ 10UQFN
Delivery:
Payment:
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Product Introduction

Overview

The INA199A1RSWT is a part of the INA199 series of voltage-output, current-shunt monitors produced by Texas Instruments. These devices are designed for precision current measurement and are commonly used in applications such as overcurrent protection, system optimization, and closed-loop feedback circuits. The INA199 series can sense drops across shunt resistors at common-mode voltages ranging from –0.3 V to 26 V, independent of the supply voltage. This versatility makes them highly suitable for a wide range of industrial and automotive applications.

Key Specifications

ParameterValue
Operating Voltage Range2.7 V to 26 V
Common-Mode Range–0.3 V to 26 V
Offset Voltage (Maximum)±150 μV
Gain Options50 V/V, 100 V/V, 200 V/V
Gain Error (Maximum Over Temperature)±1% (C Version), ±1.5% (A and B Versions)
Offset Drift (Maximum)0.5 μV/°C
Gain Drift (Maximum)10 ppm/°C
Quiescent Current (Maximum)100 μA
Operating Temperature Range–40°C to 125°C
Package Type10-Pin UQFN
Bandwidth (CLOAD = 10 pF)80 kHz (INA199x1), 30 kHz (INA199x2), 14 kHz (INA199x3)
Slew Rate0.4 V/μs
Voltage Noise Density25 nV/√Hz

Key Features

  • Wide Common-Mode Range: –0.3 V to 26 V, allowing for operation in a variety of voltage environments.
  • Zero-Drift Architecture: Ensures high accuracy with a low offset voltage of ±150 μV, enabling current sensing with drops as low as 10-mV full-scale.
  • Multiple Gain Options: Available in gains of 50 V/V, 100 V/V, and 200 V/V to accommodate different application requirements.
  • Low Power Consumption: Operates with a quiescent current of up to 100 μA.
  • High Temperature Range: Specified from –40°C to 125°C, making it suitable for harsh environments.
  • Compact Packaging: Available in 6-Pin SC70 and 10-Pin UQFN packages.

Applications

  • Overcurrent Protection: Used to detect and prevent overcurrent conditions in various systems.
  • Precision Current Measurement: Ideal for accurate current sensing in industrial and automotive systems.
  • System Optimization: Helps in optimizing system performance by providing precise current feedback.
  • Closed-Loop Feedback Circuits: Utilized in control loops to maintain stable and efficient operation.

Q & A

  1. What is the common-mode voltage range of the INA199A1RSWT?
    The common-mode voltage range is from –0.3 V to 26 V.
  2. What are the available gain options for the INA199 series?
    The gain options are 50 V/V, 100 V/V, and 200 V/V.
  3. What is the maximum offset voltage of the INA199A1RSWT?
    The maximum offset voltage is ±150 μV.
  4. What is the operating temperature range of the INA199A1RSWT?
    The operating temperature range is from –40°C to 125°C.
  5. What is the quiescent current of the INA199A1RSWT?
    The quiescent current is up to 100 μA.
  6. In what packages is the INA199A1RSWT available?
    The INA199A1RSWT is available in a 10-Pin UQFN package.
  7. What is the bandwidth of the INA199x1, INA199x2, and INA199x3?
    The bandwidth is 80 kHz for INA199x1, 30 kHz for INA199x2, and 14 kHz for INA199x3 with a CLOAD of 10 pF.
  8. What is the slew rate of the INA199A1RSWT?
    The slew rate is 0.4 V/μs.
  9. What is the voltage noise density of the INA199A1RSWT?
    The voltage noise density is 25 nV/√Hz.
  10. What are some common applications of the INA199A1RSWT?
    Common applications include overcurrent protection, precision current measurement, system optimization, and closed-loop feedback circuits.

Product Attributes

Function:Current Sense
Sensing Method:High/Low-Side
Accuracy:±1.5%
Voltage - Input:-0.3V ~ 26V
Current - Output:- 
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:10-UFQFN
Supplier Device Package:10-UQFN (1.8x1.4)
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Similar Products

Part Number INA199A1RSWT INA199C1RSWT INA199B1RSWT INA199A2RSWT INA199A3RSWT INA199A1RSWR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active
Function Current Sense Current Sense Current Sense Current Sense Current Sense Current Sense
Sensing Method High/Low-Side High/Low-Side High/Low-Side High/Low-Side High/Low-Side High/Low-Side
Accuracy ±1.5% ±1% ±1.5% ±1.5% ±1.5% ±1.5%
Voltage - Input -0.3V ~ 26V -0.1V ~ 26V -0.1V ~ 26V -0.3V ~ 26V -0.3V ~ 26V -0.3V ~ 26V
Current - Output - - - - - -
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 10-UFQFN 10-UFQFN 10-UFQFN 10-UFQFN 10-UFQFN 10-UFQFN
Supplier Device Package 10-UQFN (1.8x1.4) 10-UQFN (1.8x1.4) 10-UQFN (1.8x1.4) 10-UQFN (1.8x1.4) 10-UQFN (1.8x1.4) 10-UQFN (1.8x1.4)

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