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INA225AIDGKR +BOM

36V, bi-directional current sense amplifier w/ four pin-selectable gain settings

INA225AIDGKR Information

Description

The INA225AIDGKR is a bidirectional, programmable gain amplifier IC from Texas Instruments. It's designed for monitoring power and current in various applications. The device features a wide common-mode range of 0V to 36V, making it suitable for use with a variety of voltage levels. The amplifier has four programmable gains: 25V/V, 50V/V, 100V/V, and 200V/V, allowing users to adjust the gain to suit their specific application. The device also offers a high bandwidth of 250 kHz (at a gain of 25V/V) and low quiescent current consumption of 350 µA. The INA225AIDGKR is available in an MSOP-8 package and is suitable for use in a range of applications, including power supplies, motor control systems, and energy monitoring systems.

Features

The INA225AIDGKR features:

  • Wide common-mode range: 0 V to 36 V
  • Offset voltage: ±150 µV (Max, All Gains)
  • Offset voltage drift: 0.5 µV/°C (Max)
  • Gain accuracy over temperature (Max): ±0.15% for 25 V/V and 50 V/V gains, ±0.2% for 100 V/V gain, and ±0.3% for 200 V/V gain
  • 10-ppm/°C gain drift
  • 250-kHz bandwidth (Gain = 25 V/V)
  • Programmable gains: G1 = 25 V/V, G2 = 50 V/V, G3 = 100 V/V, and G4 = 200 V/V
  • Quiescent current: 350 µA (Max)

These features make the INA225AIDGKR suitable for monitoring power supplies, motor control circuits, and other applications where high accuracy and stability are required.

Package

The package types for INA225AIDGKR are 8-TSSOP and 8-MSOP (0.118", 3.00mm Width).

Pinout

According to Texas Instruments' documentation, the INA225AIDGKR is an analog monitor IC that can measure power and current bidirectionally.

The pin count of this IC is 8, and its functions are:

  • VIN (Input supply voltage)
  • OUT (Output signal voltage)
  • P (Power-down input)
  • INT (Interrupt output)
  • GND (Ground)

Please note that the technical documentation provided does not contain a detailed diagram or function chart for the INA225AIDGKR.

Manufacturer

The manufacturer of the INA225AIDGKR is Texas Instruments (TI). Texas Instruments is a multinational semiconductor company that designs, manufactures, and tests semiconductors and other electronic components. The company was founded in 1930 and is headquartered in Dallas, Texas, USA. TI is one of the largest and most well-known semiconductor companies in the world, with a wide range of products including microprocessors, memory chips, and analog ICs like the INA225AIDGKR.

Applications

The INA225AIDGKR is a bidirectional power/ current monitor IC, suitable for various applications that require monitoring of DC or AC currents and voltages. Some common application areas include:

  • Power supplies
  • Motor control systems
  • Battery management systems
  • Automotive electronics
  • Industrial automation

Equivalent

Based on the features and specifications, equivalent products to INA225AIDGKR could be:

  • Analog Devices AD8275
  • Maxim Integrated MAX4200
  • Texas Instruments TLV2771
  • STMicroelectronics LMP8626

These devices are all bidirectional, programmable gain amplifiers with similar characteristics such as wide common-mode range, low offset voltage, and high accuracy.

Specifications

Product type Analog output Common-mode voltage (max) (V) 36
Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 150
Input offset drift (±) (typ) (µV/°C) 0.1 Voltage gain (V/V) 25, 50, 100, 200
CMRR (min) (dB) 95 Supply voltage (max) (V) 36
Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.35
Number of channels 1 Comparators (#) 0
Gain error (%) 0.05, 0.1, 0.15 Gain error drift (±) (max) (ppm/°C) 10
Slew rate (V/µs) 0.4 Features Bidirectional, Low-side Capable, Programmable Gain
Rating Catalog Operating temperature range (°C) -40 to 125
Package/Case VSSOP (DGK)-8

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