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INA237AIDGSR

85V voltage monitor

Inventory:5,077

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Overview of INA237AIDGSR

The INA237AIDGSR is a precision current sense amplifier IC designed for high-side current sensing applications. It provides accurate monitoring of current flow through a shunt resistor with high common-mode voltage range and excellent precision.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VREF-: Voltage reference for the amplifier
  • VREF+: Positive voltage reference input
  • V+: Positive supply voltage

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the INA237AIDGSR IC for a visual representation.

Key Features

  • High Accuracy: The INA237AIDGSR offers high accuracy in current sensing applications, ensuring precise measurements.
  • Wide Input Voltage Range: With a broad common-mode voltage range, this IC is suitable for high-side current sensing in various systems.
  • Low Offset Voltage: This current sense amplifier features low offset voltage, enhancing measurement accuracy.
  • Temperature Stability: Designed for stability across temperature variations, maintaining accurate performance in diverse environments.
  • Small Footprint: Packaged in a compact MSOP-8 package, the INA237AIDGSR minimizes board space requirements.

Note: For detailed technical specifications, please refer to the INA237AIDGSR datasheet.

Application

  • Power Management Systems: Ideal for high-side current sensing in power management and control systems.
  • Motor Control: Suitable for monitoring motor currents in motor control applications.
  • Battery Monitoring: Used in battery management systems for accurate current monitoring.

Functionality

The INA237AIDGSR is a precision current sense amplifier that accurately measures current flow through a shunt resistor, providing crucial data for various electronic systems.

Usage Guide

  • Shunt Connection: Connect the shunt resistor between the +IN and -IN pins for current sensing.
  • Power Supply: Apply the positive supply voltage V+ (Pin 3) and ground (GND) for proper operation.
  • Output Handling: Monitor the output signal at the OUT pin to obtain current sensing information.

Frequently Asked Questions

Q: What is the common-mode voltage range of the INA237AIDGSR?
A: The INA237AIDGSR features a wide common-mode voltage range of up to 80V, making it suitable for high-side current sensing applications with high voltage levels.

Q: Is the INA237AIDGSR suitable for automotive applications?
A: Yes, the INA237AIDGSR's high accuracy and wide input voltage range make it a suitable choice for automotive systems requiring precise current sensing.

Equivalent

For similar functionalities, consider these alternatives to the INA237AIDGSR:

  • INA138: A high-speed, wide-input common-mode voltage, current shunt monitor.
  • LMP8480: This precision amplifier offers similar performance for current sensing applications in a different package.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Common-mode voltage (max) (V) 85 Common-mode voltage (min) (V) -0.3
Input offset (±) (max) (µV) 50 Input offset drift (±) (max) (µV/°C) 0.02
Input offset drift (±) (typ) (µV/°C) 0.002 Voltage gain (V/V) 1
CMRR (min) (dB) 120 Bandwidth (kHz) 10
Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7
Iq (max) (mA) 1.1 Digital interface I2C, SMBus
Gain error (%) 0.3 Gain error drift (±) (max) (ppm/°C) 50
Features Alert Function, Bidirectional, Digital Temp Monitor, I2C, Integrated Power Monitor, Low-side Capable Number of channels 1
Resolution (Bits) 16 Power measurement accuracy (%) 0.6
Rating Catalog Operating temperature range (°C) -40 to 125

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