INA821IDGKT Texas Instruments

INA821IDGKT Texas Instruments Profile

The INA821IDGKT is a high-precision instrumentation amplifier from Texas Instruments. It is designed for low-side sensing applications that require high accuracy, low noise, and low power consumption. The device features a low input offset voltage of 25 µV, a low bias current of 10 nA, and a wide input voltage range of ±60 V.

The INA821IDGKT amplifier has a gain range of 1 to 10,000, which can be configured through external resistors, and has a unity gain bandwidth of 800 kHz. The device operates over a temperature range of -40°C to 125°C, making it suitable for use in industrial and automotive applications.

The device also includes features such as overvoltage protection, current limiting, and thermal shutdown to ensure safe and reliable operation. It is available in a small MSOP-8 package.

Features of the INA821IDGKT amplifier include:

  • The low input offset voltage of 25 µV
  • The low bias current of 10 nA
  • Wide input voltage range of ±60 V
  • A gain range of 1 to 10,000 and unity gain bandwidth of 800 kHz
  • Overvoltage protection, current limiting, and thermal shutdown
  • Low power consumption of 550 µA

The INA821IDGKT amplifier is commonly used in a variety of applications such as motor control, power management, and signal conditioning, where high precision is required.

Alternative amplifiers that can be used as replacements for INA821IDGKT are:

  1. AD8221ARZ: It is a low-cost, high-accuracy instrumentation amplifier from Analog Devices, which features an input offset voltage of 50 µV, and low power consumption of 1.4 mA.
  2. LTC2054HVIMS8: It is a high-precision instrumentation amplifier from Linear Technology, which features an input offset voltage of 12 µV, low power consumption of 760 µA.
  3. MAX4544CUE+: It is a low-cost instrumentation amplifier from Maxim Integrated, which features an input offset voltage of 25 µV, low power consumption of 850 µA.
  4. MCP6N16-001E/MS: It is a low-power high-precision instrumentation amplifier from Microchip, which features an input offset voltage of 25 µV, low power consumption of 200 µA with a wide operating range of -40°C to 125°C.

These alternatives have similar specifications and features to the INA821IDGKT and can be used as replacements in a variety of applications where high-precision instrumentation amplifiers are required.